inventario de la macrofauna bentónica de sustratos blandos de la ensenada de san simón

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Bol. R. Soc. Esp. Hist. Nat. Sec. Biol., 103 (1-4), 2009, 103-119. ISSN 0366-3272 Inventario de la macrofauna bentónica de sustratos blandos de la Ensenada de San Simón (NO España) Check-list of soft-bottom benthic macrofauna in Ensenada de San Simón (NW Spain) Eva Cacabelos, Loreto Gestoso y Jesús S. Troncoso Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias do Mar, Universidade de Vigo, 36310 Lagoas-Marcosende, Vigo (Pontevedra), España. [email protected] PALABRAS CLAVE: Inventario, Sustrato blando, Macrofauna bentónica, Ensenada de San Simón, Ría de Vigo, España KEY WORDS: Check-list, Soft bottoms, Benthic macrofauna, Ensenada de San Simón, Ria de Vigo, Spain RESUMEN Se aporta el inventario de los invertebrados bentónicos encontrados en los fondos intermareales y submareales de la Ensena- da de San Simón, situada en el interior de la Ría de Vigo (Galicia). Los fondos blandos de dicha ensenada se muestrearon duran- te 1999. El cultivo del mejillón sobre batea es una práctica muy arraigada en la zona, de naturaleza fangosa y sometida a signifi- cativas fluctuaciones de salinidad debido a la desembocadura de varios canales de agua dulce. Además, praderas de las fanerógamas marinas Zostera marina L. y Z. noltii Hornem. caracterizan el interior de la ensenada. Se han contabilizado un total de 379 taxones, pertenecientes a 12 filos. La mayor riqueza de especies la muestran los anélidos (134 taxones), artrópodos (133) y moluscos (73). ABSTRACT Species appearing in the macrobenthic study of the Ensenada de San Simón (located in the inner Ría de Vigo, north-western Spain) are cited. The intertidal and subtidal soft-bottoms of this inlet were sampled during 1999 (Fig. 1). Culture of mussels on rafts is a common practice in large areas of the mouth of the inlet. Soft-bottoms of this inlet are mainly muddy with high organic matter content. Sandy sediments are present in tidal channels in the inner inlet where low content of total organic matter was also found. Intertidal and shallow subtidal areas have Zostera noltii Hornem. 1832 and Zostera marina L. meadows. Large freshwater input occurs in the innermost part of the inlet which translates into fluctuations of salinity on both a tidal and seasonal basis. Areas around the outer part of the inlet have muddy sands. Samples were taken at each site, by means of a van Veen grab. Samples were sieved through 0.5 mm mesh and the retained material was fixed in 10% buffered formalin. Fauna was sorted from the sediment and preserved in 70% ethanol. Temperature and pH were measured in situ from water and sedimentary samples taken from each site. An additional sedimentary sample was taken at each site for grain-size analyses and to determine content of calcium carbonate and total organic matter (Table 1). Sampling yielded 379 taxa, of which 7 were Cnidarians, 3 Platyhelminthes, 4 Nemertins, 1 Nematod, 134 Annelids (5 oligochaetes and 129 polychaetes), 3 Sipunculids, 133 Arthropods, (11 ostracods, 5 copepods, 109 malacostraceans, 2 insects, 3 aracnids, 3 picnogonids), 73 Molluscs (3 chitons, 1 scaphopod, 37 gastropods, 32 bivalves), 1 Phoronid, 11 Echinoideans, 3 Chaetognaths and 6 Chordates (3 ascideans and 3 osteichthyes). A complete check list is presented with the species name with author and date, and the number of the site where it appeared. The polychaetes dominated in 20 sites according to the number of species. Sites situated in the deeper area showed the largest number of polychaete species. The intertidal zone was colonized by large numbers of crustacean species. The polychaete families Syllidae, Spionidae and Phyllodocidae showed the largest number of species, Syllidae appearing mostly in outer areas. Some species of Spionidae, such as Polydora ciliata or Streblospio shrubsolii, showed higher densities in the sandy inner bottoms, while others, as Prionospio pulchra, showed preference by the external part. Pseudopolydora paucibranchiata is an ubiquitous species, appearing along the inlet. Among molluscs, the piramidellid gastropods showed the higher species richness (6 species). Amphipod is the crustacean order with higher number of species (60), appearing mostly in outer muddy bottoms, with the exception of some cases (Melita palmata, Leptocheirus pilosus, Corophium acherusicum, Microdeutopus gryllotalpa or Carcinus maenas). In Table I, we can see that the number of species increase from the intertidal areas towards the outer part of the inlet, with more than 10 m depth. The inner sediments are likely to be subjected to changes in salinity, temperature and desiccation levels due to their intertidal character and the freshwater input from several rivers (VILAS et al., 1995). Seagrass meadows are known to provide a complex habitat that may be colonized by many species (ORTH, 1977; PETERSON et al., 1984; SOMERSFIELD et al., 2002). In Ensenada de San Simón, however, these meadows are located in areas subjected to changes in salinity which is a major limiting factor for many species (KIKUCHI, 1987; PLANAS & MORA, 1987; JUNOY, 1996). In fact, PLANAS & MORA (1987) indicated the dominance of eurihaline species in estuarine communities, which are submitted to great changes in physical conditions. The highest values of number of species were found in the mouth of the inlet. These subtidal sed- iments show more stable conditions in terms of salinity and hydrodynamics (NOMBELA et al., 1987). The sites with the smallest number of species were muddy bottoms close to the mouth of freshwater channels and the main harbour in the inlet. Thus, it may be suspected that fluctuations in salinity coupled with effects of human activities, such as organic enrichment and disposal sewage, may be responsible for the scarce macrobenthic fauna. Bol. R. Soc. Esp. Hist. Nat. Sec. Biol., 103 (1-4), 2009.

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Se aporta el inventario de los invertebrados bentónicos encontrados en los fondos intermareales y submareales de la Ensenadade San Simón, situada en el interior de la Ría de Vigo (Galicia). Los fondos blandos de dicha ensenada se muestrearon durante1999. El cultivo del mejillón sobre batea es una práctica muy arraigada en la zona, de naturaleza fangosa y sometida a significativasfluctuaciones de salinidad debido a la desembocadura de varios canales de agua dulce. Además, praderas de lasfanerógamas marinas Zostera marina L. y Z. noltii Hornem. caracterizan el interior de la ensenada. Se han contabilizado un totalde 379 taxones, pertenecientes a 12 filos. La mayor riqueza de especies la muestran los anélidos (134 taxones), artrópodos (133)y moluscos (73).

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  • Bol. R. Soc. Esp. Hist. Nat. Sec. Biol., 103 (1-4), 2009, 103-119. ISSN 0366-3272

    Inventario de la macrofauna bentnica de sustratos blandos de la Ensenadade San Simn (NO Espaa)Check-list of soft-bottom benthic macrofauna in Ensenada de San Simn (NW Spain)

    Eva Cacabelos, Loreto Gestoso y Jess S. TroncosoDepartamento de Ecoloxa e Bioloxa Animal, Facultade de Ciencias do Mar, Universidade de Vigo, 36310 Lagoas-Marcosende, Vigo

    (Pontevedra), Espaa. [email protected]

    PALABRAS CLAVE: Inventario, Sustrato blando, Macrofauna bentnica, Ensenada de San Simn, Ra de Vigo, Espaa

    KEY WORDS: Check-list, Soft bottoms, Benthic macrofauna, Ensenada de San Simn, Ria de Vigo, Spain

    RESUMEN

    Se aporta el inventario de los invertebrados bentnicos encontrados en los fondos intermareales y submareales de la Ensena-da de San Simn, situada en el interior de la Ra de Vigo (Galicia). Los fondos blandos de dicha ensenada se muestrearon duran-te 1999. El cultivo del mejilln sobre batea es una prctica muy arraigada en la zona, de naturaleza fangosa y sometida a signifi-cativas fluctuaciones de salinidad debido a la desembocadura de varios canales de agua dulce. Adems, praderas de lasfanergamas marinas Zostera marina L. y Z. noltii Hornem. caracterizan el interior de la ensenada. Se han contabilizado un totalde 379 taxones, pertenecientes a 12 filos. La mayor riqueza de especies la muestran los anlidos (134 taxones), artrpodos (133)y moluscos (73).

    ABSTRACT

    Species appearing in the macrobenthic study of the Ensenada de San Simn (located in the inner Ra de Vigo, north-westernSpain) are cited. The intertidal and subtidal soft-bottoms of this inlet were sampled during 1999 (Fig. 1). Culture of mussels onrafts is a common practice in large areas of the mouth of the inlet.

    Soft-bottoms of this inlet are mainly muddy with high organic matter content. Sandy sediments are present in tidal channelsin the inner inlet where low content of total organic matter was also found. Intertidal and shallow subtidal areas have Zostera noltiiHornem. 1832 and Zostera marina L. meadows. Large freshwater input occurs in the innermost part of the inlet which translatesinto fluctuations of salinity on both a tidal and seasonal basis. Areas around the outer part of the inlet have muddy sands.

    Samples were taken at each site, by means of a van Veen grab. Samples were sieved through 0.5 mm mesh and the retainedmaterial was fixed in 10% buffered formalin. Fauna was sorted from the sediment and preserved in 70% ethanol. Temperature andpH were measured in situ from water and sedimentary samples taken from each site. An additional sedimentary sample was takenat each site for grain-size analyses and to determine content of calcium carbonate and total organic matter (Table 1).

    Sampling yielded 379 taxa, of which 7 were Cnidarians, 3 Platyhelminthes, 4 Nemertins, 1 Nematod, 134 Annelids (5oligochaetes and 129 polychaetes), 3 Sipunculids, 133 Arthropods, (11 ostracods, 5 copepods, 109 malacostraceans, 2 insects, 3aracnids, 3 picnogonids), 73 Molluscs (3 chitons, 1 scaphopod, 37 gastropods, 32 bivalves), 1 Phoronid, 11 Echinoideans, 3Chaetognaths and 6 Chordates (3 ascideans and 3 osteichthyes). A complete check list is presented with the species name withauthor and date, and the number of the site where it appeared.

    The polychaetes dominated in 20 sites according to the number of species. Sites situated in the deeper area showed the largestnumber of polychaete species. The intertidal zone was colonized by large numbers of crustacean species. The polychaete familiesSyllidae, Spionidae and Phyllodocidae showed the largest number of species, Syllidae appearing mostly in outer areas. Somespecies of Spionidae, such as Polydora ciliata or Streblospio shrubsolii, showed higher densities in the sandy inner bottoms, whileothers, as Prionospio pulchra, showed preference by the external part. Pseudopolydora paucibranchiata is an ubiquitous species,appearing along the inlet.

    Among molluscs, the piramidellid gastropods showed the higher species richness (6 species). Amphipod is the crustaceanorder with higher number of species (60), appearing mostly in outer muddy bottoms, with the exception of some cases (Melitapalmata, Leptocheirus pilosus, Corophium acherusicum, Microdeutopus gryllotalpa or Carcinus maenas).

    In Table I, we can see that the number of species increase from the intertidal areas towards the outer part of the inlet, withmore than 10 m depth. The inner sediments are likely to be subjected to changes in salinity, temperature and desiccation levels dueto their intertidal character and the freshwater input from several rivers (VILAS et al., 1995).

    Seagrass meadows are known to provide a complex habitat that may be colonized by many species (ORTH, 1977; PETERSONet al., 1984; SOMERSFIELD et al., 2002). In Ensenada de San Simn, however, these meadows are located in areas subjected tochanges in salinity which is a major limiting factor for many species (KIKUCHI, 1987; PLANAS & MORA, 1987; JUNOY, 1996). Infact, PLANAS & MORA (1987) indicated the dominance of eurihaline species in estuarine communities, which are submitted to greatchanges in physical conditions. The highest values of number of species were found in the mouth of the inlet. These subtidal sed-iments show more stable conditions in terms of salinity and hydrodynamics (NOMBELA et al., 1987). The sites with the smallestnumber of species were muddy bottoms close to the mouth of freshwater channels and the main harbour in the inlet. Thus, it maybe suspected that fluctuations in salinity coupled with effects of human activities, such as organic enrichment and disposal sewage,may be responsible for the scarce macrobenthic fauna.

    Bol. R. Soc. Esp. Hist. Nat. Sec. Biol., 103 (1-4), 2009.

  • 1. INTRODUCCIN

    La macrofauna bentnica de las costas ibri-cas y gallegas ha sido estudiada tanto desde elpunto de vista ecolgico como faunstico. Al serconsiderada buena indicadora de las condicionesde los fondos marinos (GRALL & GLMAREC,1997), su conocimiento es de gran utilidad a lahora de conocer su estado y gestionarlos. Las ras,sistemas estuarinos particulares y caractersticosde las costas gallegas, han sido especialmenteestudiadas (LPEZ-JAMAR, 1978, 1981; ANADN,1980; MORA, 1982; VIITEZ & LPEZ-COTELO,1982; LPEZ-JAMAR & MEJUTO, 1985; LPEZ-JAMAR & CAL, 1990; MAZ et al., 1990; CURRS& MORA, 1991; JUNOY, 1996; OLABARRIA et al.,1998; TRONCOSO et al., 2005; MOREIRA et al.,2005) gracias a su gran importancia econmica ysocial, ya que estn asociadas a pesqueras, culti-vo de bivalvos en bateas y otros recursos maris-queros. A pesar de los estudios realizados en laEnsenada de San Simn (NOMBELA et al., 1995;FERNNDEZ RODRGUEZ et al., 1997; LVAREZ-IGLESIAS et al., 2003), situada en el interior de laRa de Vigo, pocos investigadores han analizadosu fauna bentnica, desconocindose su composi-cin y la distribucin de sus comunidades. Conse-cuentemente, es necesario un estudio de esta faunapara llevar a cabo una correcta gestin de la ense-nada, particularmente desde que ha sido incluida enla Red Natura 2000 como figura a proteger. En elpresente trabajo se citan las especies macrofaunsti-cas encontradas en los fondos blandos intermarea-les y submareales de la Ensenada de San Simn.

    2. MATERIAL Y MTODOS

    La Ra de Vigo es la ms meridional de lasras que caracterizan a la costa atlntica de Gali-cia, presentando una morfologa de embudo. Laorientacin de su eje mayor es N45E, ocupandouna extensin total de 176 km2. Las Islas Ces,situadas en su entrada, le protegen de los frecuen-tes temporales atlnticos. En la zona ms internade la ra, entre 4217 y 4221 N y 837 y 839 Ose sita la Ensenada de San Simn, de 19.4 km2.Est bordeada por pequeos acantilados en su cara

    oeste y playas arenosas en la zona ms oriental.Varias islas rocosas salpican su superficie, lamayor de las cuales es la Isla de San Simn, bajocuya proteccin se ha desarrollado un tmboloarenoso. Los fondos blandos de la ensenada sonfundamentalmente fangosos y con alto contenidoen materia orgnica (VILAS et al., 1995). El carc-ter fangoso se ve incrementado por el cultivo demejilln sobre batea, prctica muy arraigada en lazona de aguas ms profundas de las proximidadesdel Estrecho de Rande (ABELLA et al., 1996). Laensenada est sometida a significativas fluctuacio-nes de salinidad debido a la desembocadura de

    104 E. CACABELOS, L. GESTOSO Y J. S. TRONCOSO

    Bol. R. Soc. Esp. Hist. Nat. Sec. Biol., 103 (1-4), 2009.

    In general, species observed in Ensenada de San Simn were similar to those described by ANADN (1980) and LPEZ-JAMAR& CAL (1990) for the Ra de Vigo, by LPEZ-JAMAR (1978), RODRGUEZ-CASTELO & MORA (1984) and MORA et al. (1982) for Pon-tevedra, by LPEZ-JAMAR (1981) for the Ra de Muros, by MORA (1980) and LPEZ-JAMAR (1982) for the Ra de Arousa, by LPEZ-JAMAR & MEJUTO (1986) and PARRA & LPEZ-JAMAR (1997) for the Ra de A Corua and for OLABARRIA (1995) for the Ensenadade O Bao (Ra de Ferrol).

    Figura 1.Localizacin de la Ensenada de San Simn y posi-cin de las 29 estaciones de muestreo.

    Location of the Ensenada de San Simn and posi-tion of the 29 sampling sites.

  • varios canales de agua dulce (NOMBELA & VILAS,1991). Adems, praderas de las fanergamasmarinas Zostera marina L. y Z. noltii Hornem.caracterizan los fondos intermareales y submarea-les del interior de la ensenada.

    Los muestreos de campo se han realizadodurante los meses de noviembre y diciembre de1999 por el grupo de Adaptaciones de AnimalesMarinos de la Universidad de Vigo. El rea deestudio se dividi sobre una carta nutica en cua-drculas de medio minuto de lado, y en el centrode cada una de ellas se design un punto de mues-treo, obtenindose as las 29 estaciones que apare-cen en la Figura 1. Se recolectaron un total de 5rplicas por estacin con una draga van-Veen de0.056 m2 de rea.

    Parte de este material se dedic al estudio delsedimento, ya que siendo el fondo marino el sus-trato en el que se asientan los animales bentni-cos, el conocimiento de sus caractersticas fsico-qumicas es fundamental para los estudiosrelacionados con su biologa, distribucin o hbi-to trfico. Se determinaron los porcentajes de lasdiferentes fracciones granulomtricas y el conte-nido en materia orgnica (MO) y en carbonatos(CO). Adems, se midieron in situ la temperatura(C) y el pH del agua y del sedimento. Estos datosaparecen reflejados en la Tabla I. Las muestrasdedicadas al estudio faunstico se tamizaron conmalla de 0.5 mm. El material retenido en los tami-ces se fij en formaldehdo al 10 % neutralizadocon tetraborato sdico y teido con el colorante

    MACROFAUNA BENTNICA DE SUSTRATOS BLANDOS, ENSENADA DE SAN SIMN (NO DE ESPAA) 105

    Bol. R. Soc. Esp. Hist. Nat. Sec. Biol., 103 (1-4), 2009.

    LimoEstacin Prof Ta pHa Ts pHs Q50 Grava Arena Arcilla Tipo MO CO S

    1 1.6 13.6 7.25 14.5 7.25 0.01 0.1 16.8 83.1 F 26.5 5.52 342 1.6 13.8 7.28 13.9 7.38 0.01 2.2 32.9 64.9 F 23.30 5.60 393 1.6 13.9 7.23 13.8 7.12 0.08 0.00 56.7 43.3 FA 19.05 6.12 444 1.6 14.5 7.24 14.3 7.76 0.32 17.8 74.0 8.2 AF 2.16 6.00 465 1.8 14.8 7.05 14.7 7.9 1.25 30.0 64.3 5.7 AF 4.90 7.33 466 1.6 13.7 7.2 13.9 8 1.15 21.1 76.8 2.1 AMG 0.95 11.98 337 3.4 13.1 7.97 12.1 7.31 0.15 0.3 74.3 25.4 FA 3.95 6.31 698 3.2 13.1 7.99 10.1 7.41 0.04 0.6 35.9 63.5 F 10.88 5.80 569 2.9 12.9 7.99 14.7 7.35 0.01 0.9 27.7 71.4 F 18.12 4.28 6210 2.9 17.3 7.97 15 7 0.01 0.0 2.3 97.7 F 36.93 4.28 4611 3.6 12.4 7.67 12.7 7.23 0.01 0.0 8.9 91.1 F 26.50 4.81 3612 3.8 12.4 7.86 12.3 7.29 0.01 1.1 19.2 79.7 F 19.93 2.12 3313 3.5 12.4 7.98 12.3 7.17 0.01 3.0 23.0 74.0 F 23.00 2.36 4214 4.6 15.8 7.98 12.1 7.25 0.01 7.1 24.4 68.5 F 19.78 2.28 12215 1.8 15.6 8 14.7 7.55 0.74 3.5 94.4 2.1 AG 1.00 8.35 6116 4.2 17.3 7.53 20.9 7.61 0.01 1.0 15.5 83.5 F 21.47 4.53 9117 3.7 17.5 7.53 18.4 7.57 0.02 4.7 31.1 64.2 F 18.93 5.90 9618 4.5 16.1 7.32 16 7.58 0.01 1.9 20.0 78.1 F 15.20 4.52 7019 4.7 16.1 7.6 17.2 7.39 0.01 0.0 13.9 86.1 F 21.05 4.53 9820 2.6 14.1 7.27 14.1 7.76 0.21 11.8 77.7 10.5 AF 1.80 4.85 7321 18 17.7 7.57 14.6 7.49 0.01 0.6 26.3 73.1 F 19.50 4.61 13322 10.4 16.6 7.62 16.7 7.46 0.01 1.0 37.4 61.6 F 12.98 5.51 16323 5.9 18.2 7.55 16.3 7.46 0.01 1.2 25.2 73.6 F 22.17 5.40 10824 4.1 18.1 7.55 19.2 7.47 0.01 0.0 12.6 87.4 F 21.42 4.07 3425 1.6 18 7.53 16.9 7.47 0.01 6.8 31.8 61.4 F 23.72 5.47 6326 28.2 16.5 7.07 16.1 7.43 1.50 40.2 48.3 11.5 AF 7.22 40.46 17427 11.5 16.1 7.51 16.8 7.61 0.01 9.3 28.2 62.5 F 10.60 8.61 15228 4.7 17.2 7.47 16.3 7.49 0.01 2.4 19.0 78.6 F 22.32 4.61 5629 2 17 7.6 17 7.54 0.01 0.1 31.7 68.2 F 14.33 4.45 14

    Tabla-I.Profundidad de las estaciones durante el muestreo (m), considerndose intermareales las estaciones de profundidad infe-rior a 2 m. Se indican las caractersticas del agua (a) y de los sedimentos (s): (pH y Temperatura en C), Mediana (Q50 en mm),Fracciones granulomtricas (Grava, Arena y Limo/Arcilla en %), Tipo de fondo (F, Fango, FA, Fango arenoso, AF, Arena fan-gosa, AG, Arena gruesa, AMG, Arena muy gruesa), MO, Contenido en Materia orgnica en % y CO, Contenido en Carbonatosen %. S, nmero de especies.

    Depth of the water column during the sampling (m), being intertidal those sites > 2 m. Water (a) and sediment (s)characteristics: pH, Temperature (C), Median grain size (Q50, mm), Granulometric fractions (Gravel, Sand and Silt/Clay, %),Bottom type (F, Mud, FA, Sandy mud, AF, Muddy sand, AG, Coarse sand, AMG, Very coarse sand), MO, Organic mattercontent (%) and CO, Carbonate content (%). S, Number of species.

  • rosa de Bengala y se traslad al laboratorio, dondela fauna fue examinada e identificada a nivel espe-cfico siempre que fue posible.

    3. RESULTADOS

    Se han contabilizado un total de 379 taxones(gneros o especies), pertenecientes a los siguien-tes filos: 7 Cnidarios, 3 Platelmintos, 4 Nemerti-nos, 1 Nematodo, 134 Anlidos (5 oligoquetos,129 poliquetos), 3 Sipunclidos, 133 Artrpodos(11 ostrcodos, 5 coppodos, 109 malacostrceos,2 insectos, 3 arcnidos, 3 picnognidos), 73Moluscos (3 poliplacforos, 1 escafpodo, 37 gas-terpodos, 32 bivalvos), 1 Forondeo, 11 Equino-dermos (5 ofiuroideos, 2 equinoideos, 4 holoturoi-deos), 3 Quetognatos, y 6 Cordados (3 ascidiceosy 3 osteictios). Se aporta a continuacin el nombreactualizado para cada especie encontrada, ascomo el nombre del autor y fecha, y la relacin deestaciones (St) en las que ha aparecido.

    3.1. Resultados faunsticosFILO CNIDARIACLASE ANTHOZOASUBCLASE OCTOCORALLIA

    Familia Virgulariidae Verrill, 1868Virgularia mirabilis (Mller, 1776)

    St: 16, 17, 18, 19SUBCLASE HEXACORALLIAORDEN CERIANTHARIA

    Familia Cerianthidae Milne-Edwards y Haine, 1852Cerianthus sp.

    St: 14, 19, 27ORDEN ZOANTHIDEAZoanthidea familia et genera ind.

    St: 12, 26ORDEN ACTINIARIAActiniaria fam. et genera ind.

    St: 1, 2, 3, 5, 7, 8, 20, 21, 22, 23, 26, 27

    Familia Actiniidae Goldfuss, 1820Anemonia viridis (Forskal, 1775)

    St: 10, 20

    Familia Sagartiidae Gosse, 1858Sagartiogeton undatus (Mller, 1788)

    St: 20, 27

    Familia Edwardsiidae Andres, 1881Edwardsia claparedii (Panceri, 1869)

    St: 8, 9, 14, 16, 17, 19, 21, 22, 23, 24, 27, 28FILO PLATYHELMINTHESCLASE TURBELLARIATurbellaria fam. et genera ind. sp.1

    St: 3, 4, 7, 10, 14, 15, 20, 21, 22, 23, 25, 26Turbellaria fam. et genera ind. sp.2

    St: 3, 6, 10Turbellaria fam. et genera ind. sp.3

    St: 22FILO NEMERTEANemertea fam. genera, spp ind.

    St: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29

    Nemertea fam. genera ind. sp.1St: 6

    Nemertea fam. genera ind. sp.2St: 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19,20, 21, 22, 25, 26

    Nemertea fam. genera ind. sp.3St: 11, 17, 18, 19, 21, 22, 23, 24, 26, 27

    FILO NEMATODANematoda fam. genera spp. ind.

    St: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29

    FILO ANNELIDACLASE OLIGOCHAETAOligochaeta fam. genera ind. sp.1

    St: 1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 16, 18,20, 21, 22, 23, 24, 27, 28

    Oligochaeta fam. genera ind. sp.2St: 3, 5, 21, 24, 28

    ORDEN TUBIFICIDATubificidae genera et sp ind. 1

    St: 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20,21, 22, 24, 25, 26, 27, 28

    Tubificidae genera et sp ind. 2St: 1, 2, 3, 4, 5, 6, 8, 9, 10, 14, 15, 20, 21

    ORDEN ENCHYTRAEIDAEnchytraeida fam. genera sp ind.

    St: 3, 15, 22, 26CLASE POLYCHAETAORDEN ORBINIIDA

    Familia Orbiniidae Hartman, 1942Ariciidae genera et sp ind.

    St: 5, 14, 15, 19, 28Aricia foetida (Claparde, 1870)

    St: 14, 16, 19, 22, 23

    Familia Paraonidae Cerruti, 1909Paradoneis lyra (Southern, 1914)

    St: 8, 9, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 23,24, 25, 26, 27, 28

    106 E. CACABELOS, L. GESTOSO Y J. S. TRONCOSO

    Bol. R. Soc. Esp. Hist. Nat. Sec. Biol., 103 (1-4), 2009.

  • Cirrophorus cf. furcatus Hartmann, 1957St: 27

    ORDEN COSSURIDA

    Familia Cossuridae Day, 1963Cossura pygodactylata Jones, 1956

    St: 7, 8, 9, 11, 12, 13, 14, 16, 17, 18, 19, 21, 22,23, 24, 25, 26, 27, 28

    ORDEN SPIONIDA

    Familia Spionidae Grube, 1850Spionidae genera et sp ind.

    St: 22Aonides oxycephala (Sars, 1862)

    St: 5, 21, 22, 26, 27Malacoceros sp.

    St: 10, 29Malacoceros vulgaris (Johnston, 1827)

    St: 7, 10, 29Polydora sp.

    St: 14, 16, 19, 21, 22, 23, 26, 28Polydora caeca (Oersted, 1843)

    St: 14, 16, 21, 22, 23, 26, 27Polydora ciliata (Johnston, 1838)

    St: 1, 2, 3, 5, 10, 15, 20, 21, 22, 26Polydora flava Claparde, 1870

    St: 14, 17, 21, 22, 23, 26, 27Prionospio fallax Sderstrm, 1920

    St: 14, 17, 18, 19, 21, 22, 23, 26, 27, 28, 29Prionospio pulchra Imajima, 1990

    St: 9, 12, 13, 14, 16, 17, 18, 19, 21, 22, 23, 24, 26,27, 28

    Pseudopolydora paucibranchiata (Okuda, 1937)St: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29

    Pseudopolydora pulchra (Carazzi, 1895)St: 15, 18, 27

    Pygospio elegans Claparde, 1863St: 20

    Spio decoratus Bobretzky, 1871St: 8, 9, 14, 16, 17, 18, 19, 21, 22, 23, 24, 26, 28

    Streblospio shrubsolii (Buchanan, 1890)St: 1, 2, 3, 4, 5, 6, 14, 15, 18

    Familia Magelonidae Cunningham y Ramage, 1888Magelona alleni Wilson, 1958

    St: 27Magelona filiformis Wilson, 1959

    St: 16, 17, 22

    Familia Trochochaetidae Pettibone, 1963Poecilochaetus serpens Okuda, 1937

    St: 17

    Familia Chaetopteridae Audouin y Milne Edwards,1833

    Chaetopterus variopedatus (Renier, 1804)St: 16, 19, 21, 23

    Spiochaetopterus costarum (Claparde, 1870)St: 12, 13, 14, 16, 17, 19, 21, 22, 23, 24, 27, 28

    Familia Cirratulidae Ryckholdt, 1851Aphelochaeta marioni (Saint-Joseph, 1894)

    St: 9, 14, 16, 18, 19, 21, 22, 26, 27, 28Caulleriella sp.

    St: 14Caulleriella alata (Southern, 1914)

    St: 21, 22, 26, 27Caulleriella bioculata (Keferstein, 1862)

    St: 21Chaetozone gibber Woodham y Chambers, 1994

    St: 3, 7, 8, 9, 11, 12, 13, 14, 16, 17, 18, 19, 21, 22,23, 24, 26, 27, 28

    Chaetozone cf. setosa Malmgren, 1867St: 12, 14, 16, 17, 19, 21, 22, 23, 27

    Cirriformia tentaculata (Montagu, 1808)St: 5, 7, 14, 16, 17, 19, 20, 21, 22, 23, 25, 26, 27

    Monticellina dorsobranchialis (Kirkegaard, 1959)St: 21, 22, 23, 25, 26, 27, 28

    ORDEN CAPITELLIDA

    Familia Capitellidae Grube, 1862Capitella cf. capitata (Fabricius, 1780)

    St: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,16, 17, 18, 19, 20, 21, 22, 24, 25, 28, 29

    Heteromastus filiformis (Claparde, 1864)St: 1, 2, 3, 4, 5, 6, 7, 13, 14, 15, 16, 17, 18, 19, 20,21, 22, 23, 24, 25, 26, 27, 28

    Notomastus latericeus Sars, 1851St: 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 26, 27

    Familia Maldanidae Malmgren, 1867Clymenura clypeata (Saint-Joseph, 1894)

    St: 7, 14, 16, 18, 19, 22, 25, 27Euclymene lombricoides (Quatrefages, 1865)

    St: 22Euclymene oerstedii (Claparde, 1863)

    St: 7, 9, 12, 14, 16, 17, 18, 19, 21, 22, 23, 24, 25,26, 27, 28

    Praxillella sp.St: 9, 14, 19, 21, 22, 26, 27

    ORDEN OPHELIIDA

    Familia Opheliidae Malmgren, 1867Armandia cirrhosa Filippi, 1861

    St: 8, 14, 16, 17, 23, 26, 27, 28ORDEN PHYLLODOCIDA

    Familia Phyllodocidae Williams, 1857Eteone foliosa Quatrefages, 1866

    St: 14Eteone cf. longa (Fabricius, 1780)

    St: 3, 16, 27, 28Eteone picta Quatrefages, 1866

    St: 10, 14, 17, 21, 22

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  • Eumida cf. bahusiensis Bergstrm, 1914St: 17

    Eumida sanguinea (Oersted, 1843)St: 7, 14, 15, 16, 17, 19, 20, 21, 22, 23, 25, 26, 27

    Paranaitis kosteriensis (Malmgren, 1867)St: 14, 19, 22, 26

    Phyllodoce lineata (Claparde, 1870)St: 18, 21, 22, 26, 27

    Phyllodoce cf. longipes Kinberg, 1866St: 14, 16, 22, 23, 26, 27

    Phyllodoce mucosa Oersted, 1843St: 5, 7, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,22, 24, 25, 26, 29

    Phyllodoce rosea (McIntosh, 1877)St: 27

    Pseudomystides limbata (Saint-Joseph, 1888)St: 14

    Familia Polynoidae Malmgren, 1867Harmothoe sp.1

    St: 19Harmothoe sp.2

    St: 21Harmothoe sp.3

    St: 19, 21, 22, 23, 26, 27

    Familia Pholoidae Kimberg, 1858Pholoe synophthalmica Claparde, 1868

    St: 14, 16, 17, 19, 21, 22, 23, 26, 27

    Familia Hesionidae Sars, 1862Microphthalmus pseudoaberrans Campoy y Viitez,

    1982St: 1, 2, 3, 4, 5, 6, 8

    Ophiodromus flexuosus (Chiaje, 1825)St: 13, 14, 16, 17, 18, 19, 21, 22, 23, 27

    Ophiodromus cf. pelagica Rioja, 1923St: 26

    Podarkeopsis capensis (Day, 1963)St: 22

    Syllidia armata Quatrefages, 1865St: 21, 22, 26, 27

    Familia Pilargiidae Saint-Joseph, 1899Ancistrosyllis groenlandica McIntosh, 1879

    St: 18Pilargis verrucosa Saint-Joseph, 1899

    St: 23

    Familia Syllidae Grube, 1850Syllidae genera et sp ind.

    St: 26Myrianida sp.

    St: 23Myrianida cf. edwardsi (Saint-Joseph, 1887)

    St: 4, 10, 26Parexogone hebes (Webster y Benedict, 1884)

    St: 13, 14, 16, 17, 18, 19, 21, 22, 23, 26, 27, 29

    Exogone naidina Oersted, 1845St: 5, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 23,25, 26, 27, 28

    Parapionosyllis brevicirra Day, 1954St: 15, 26

    Parapionosyllis minuta (Pierantoni, 1903)St: 4, 5, 6

    Proceraea sp.St: 16

    Eunaceusyllis belizensis (Rusell, 1989)St: 8, 10, 21, 26

    Prosphaerosyllis campoyi (San Martn, Acero, Conto-nente y Gmez, 1982)St: 8, 9, 13, 14, 18, 22, 26

    Sphaerosyllis hystrix Claparde, 1863St: 9, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 23, 24,25, 26, 27, 28

    Sphaerosyllis websteri Southern, 1914St: 22

    Syllides cf. edentatus (Westheide, 1974)St: 17, 19, 22, 23, 27

    Syllis columbretensis (Campoy, 1982)St: 10

    Syllis gracilis Grube, 1840St: 19, 21, 22, 26

    Familia Nereididae Johnston, 1845Eunereis longissima (Johnston, 1840)

    St: 17Neanthes caudata (Chiaje, 1828)

    St: 10, 11, 20, 21Platynereis dumerilii (Audouin y Milne-Edwards,

    1834)St: 3, 6, 9, 10, 14, 16, 18, 19, 20, 21, 22, 23, 25

    Familia Glyceridae Grube, 1850Glycera tridactyla Schmarda, 1861

    St: 4, 5, 6, 7, 14, 15, 19, 20, 21, 22, 25Glycera unicornis Savigny, 1818

    St: 19, 23, 26, 27

    Familia Goniadidae Kinberg, 1866Goniada sp.

    St: 22Goniadella galaica Rioja, 1923

    St: 6, 26

    Familia Nephtyidae Grube, 1860Nephtys cirrosa Ehlers, 1868

    St: 7, 8, 22Nephtys hombergi Savigny, 1818

    St: 1, 4, 7, 8, 9, 11, 12, 13, 14, 16, 17, 18, 24, 25,26, 28, 29

    Familia Sphaerodoridae Malmgren, 1867Sphaerodopsis garciaalvarezi Moreira, Cacabelos y

    Troncoso, 2004St: 26, 27

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  • Sphaerodorum gracile (Rathke, 1843)St: 26

    ORDEN EUNICIDA

    Familia Onuphidae Kinberg, 1865Diopatra neapolitana Chiaje, 1841

    St: 8, 9, 14, 21, 22, 28Hyalinoecia bilineata Baird, 1870

    St: 25, 26

    Familia Eunicidae Savigny, 1818Eunice vittata Chiaje, 1828

    St: 26, 27

    Familia Lumbrineridae Malmgren, 1867Lumbrineridae genera et sp ind.

    St: 21Abyssoninoe hibernica (McIntosh, 1903)

    St: 16, 17, 19, 21, 22, 23, 26, 27Lumbrineris impatiens (Claparde, 1868)

    St: 21, 22, 26Lumbrineris latreilli Audouin y Milne-Edwards, 1834

    St: 19, 21, 22, 23, 26, 27

    Familia Dorvilleidae Chamberlin, 1919Dorvilleidae genera et sp ind.

    St: 19, 21, 26Ophryotrocha sp.

    St: 9, 11, 14, 16, 17, 18, 19, 21, 22, 23, 25, 26, 27,28

    Protodorvillea sp.St: 25

    Protodorvillea kefersteini (McIntosh, 1869)St: 21, 26, 27

    Schistomeringos sp.St: 6, 26

    Schistomeringos caeca (Webster y Benedict, 1884)St: 7, 8, 14, 15, 16, 17, 19, 20, 21, 22, 23, 25, 26,27

    Schistomeringos neglecta (Fauvel, 1923)St: 6, 22, 27

    Schistomeringos rudolphi (Chiaje, 1928)St: 26

    ORDEN STERNASPIDA

    Familia Sternaspidae Carus, 1863Sternaspis scutata (Renier, 1807)

    St: 19ORDEN OWENIIDA

    Familia Oweniidae Rioja, 1917Galathowenia oculata (Zaks, 1922)

    St: 14, 16, 17, 21, 22, 23, 25, 26, 27, 28ORDEN FLABELLIGERIDA

    Familia Flabelligeridae Saint-Joseph, 1894Flabelligera affinis Sars, 1829

    St: 26, 27

    Pherusa monilifera (Chiaje, 1841)St: 21, 26

    ORDEN TEREBELLIDA

    Familia Sabellariidae Johnston, 1865Sabellaria spinulosa Leuckart, 1849

    St: 26, 27

    Familia Pectinariidae Quatrefages, 1865Lagis koreni Malmgren, 1866

    St: 8, 9, 13, 14, 16, 17, 19, 22, 24, 25, 26, 27, 28

    Familia Ampharetidae Malmgren, 1866Ampharete finmarchica (Sars, 1866)St: 3, 7, 8, 9, 11, 12, 13, 14, 16, 17, 18, 19, 21, 22, 23,

    24, 25, 26, 27, 28Melinna palmata Grube, 1870St: 8, 9, 11, 12, 13, 14, 16, 17, 18, 19, 21, 22, 23, 24,

    25, 26, 27, 28

    Familia Terebellidae Malmgren, 1867Amphitritides gracilis (Grube, 1860)

    St: 27Lanice conchilega (Pallas, 1766)

    St: 8, 9, 14, 19, 21, 25, 26, 27Paramphitrite tetrabranchia Holthe, 1976

    St: 22, 26, 27Pista cristata (Mller, 1776)

    St: 19, 21, 22, 26, 27Polycirrus sp.

    St: 14, 17, 20, 21, 22, 26, 27

    Familia Trichobranchidae Malmgren, 1866Terebellides stroemi Sars, 1835

    St: 12, 14, 16, 17, 18, 19, 21, 22, 23, 26, 27ORDEN SABELLIDA

    Familia Sabellidae Malmgren, 1867Branchiomma linaresi Rioja, 1917

    St: 23, 27Branchiomma vesiculosum (Montagu, 1815)

    St: 15, 20Fabricia sabella (Ehrenberg, 1837)

    St: 1, 2, 3, 5, 10, 11, 20Fabricia sp.

    St: 15Jasmineira elegans Saint-Joseph, 1894

    St: 22, 26Sabella pavonina Savigny,1822

    St: 7, 20, 25, 26

    Familia Serpulidae Johnston, 1865Serpulidae genera et sp ind.

    St: 27Pomatoceros lamarcki (Quatrefages, 1865)

    St: 20, 21, 27Pomatoceros triqueter (Linneo, 1767)

    St: 21, 22, 26, 27

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  • Familia Spirorbidae Pillai, 1970Janua pagenstecheri (Quatrefages, 1865)

    St: 10, 20ORDEN PROTODRILIDA

    Familia Protodrilidae Czerniavsky, 1881Protodrilidae genera et sp ind.

    St: 3FILO SIPUNCULASipuncula sp.

    St: 15

    Familia Golfingiidae Stephen y Edmonds, 1972Golfingiidae genera et sp ind.

    St: 18

    Familia Aspidosiphonidae Quatrefages, 1865Aspidosiphon sp.

    St: 19, 23FILO ARTHROPODASUBFILO CRUSTACEACLASE OSTRACODAOstracoda familia er genera ind.

    St: 1, 2, 3, 4, 8, 10, 11, 14, 15, 17, 18, 20, 22, 23ORDEN MYOCOPIDAMyocopida familia et genera ind. sp.1

    St: 14, 16, 17, 19, 21, 23, 26, 27Myocopida familia et genera ind. sp.2

    St: 26Myocopida familia et genera ind. sp.3

    St: 18, 22, 26Myocopida familia et genera ind. sp.4

    St: 2, 9, 14, 16, 17, 19, 21, 22, 23, 24, 25, 26, 27,28

    ORDEN PODOCOPIDACytheracea familia et genera ind. sp.

    St: 3, 4, 5, 6, 7, 15, 17, 18, 20, 21, 22, 24

    Familia Pontocyprididae G.W. Mller, 1894Pontocypris sp.

    St: 7, 8, 9, 14, 16, 18, 20, 21, 22, 26, 27, 28Propontocypris sp.

    St: 2, 5, 6, 7, 8, 9, 10, 13, 14, 15, 17, 19, 20, 21,22, 23, 24, 25, 27

    Familia Trachyleberididae Sylvester-Bradley, 1948Carinocythereis sp.

    St: 8, 14, 16, 17, 18, 21, 22

    Familia Hemicytheridae Sylvester-Bradley, 1948Aurila sp.

    St: 5, 8, 9, 11, 17

    Familia Cytheruridae G.W. Mller, 1894Semicytherura sp.

    St: 15, 18

    CLASE COPEPODAORDEN HARPACTICOIDAHarpacticoida familia et genera ind. spp.

    St: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16,17, 19, 20, 21, 22, 23, 25, 26, 27, 28

    Familia Porcellidiidae Boeck, 1865Porcellidium sp.

    St: 16, 18ORDEN POECILOSTOMATOIDAPoecilostomatoida familia et genera ind. sp.1

    St: 1, 2, 7, 9, 13, 14, 16, 19, 20, 22, 23, 25, 26, 27,28

    Poecilostomatoida familia et genera ind. sp.2St: 20, 25, 26

    Poecilostomatoida familia et genera ind. sp.3St: 3, 4, 5

    CLASE MALACOSTRACASUBCLASE EUMALACOSTRACASUPERORDEN PHYLLOCARIDAORDEN LEPTOSTRACA

    Familia Nebaliidae Samouelle, 1819Nebalia kocatasi Moreira, Koak y Katagan, 2007

    St: 21, 22, 26, 27Nebalia strausi Risso, 1826

    St: 7, 20SUPERORDEN PERACARIDAORDEN CUMACEA

    Familia Bodotriidae T. Scott, 1901Iphinoe tenella Sars, 1878

    St: 4, 5, 7, 8, 9, 13, 14, 16, 17, 20, 21, 22, 26, 27,28

    Familia Leuconidae G.O. Sars, 1878Eudorella truncatula (Bate, 1856)

    St: 16, 17, 21, 22, 23, 26, 27

    Familia Diastylidae Bate, 1856Diastylis laevis Norman, 1869

    St: 26Diastylis sp.

    St: 26ORDEN TANAIDACEATanaidacea familia et genera ind. sp.

    St: 21, 26SUBORDEN APSEUDOMORPHA

    Familia Apseudidae Leach, 1814Apseudes latreilli (Milne-Edwards, 1828)

    St: 14, 21, 22, 27Apseudes talpa (Montagu, 1808)

    St: 14Apseudes sp.

    St: 16SUBORDEN TANAIDOMORPHA

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  • Familia Tanaidae Dana, 1849Zeuxo normani (Richardson, 1905)

    St: 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20, 21,22, 23, 25, 26, 27, 28, 29

    Familia Paratanaidae Lang, 1949Heterotanais oerstedi (Kryer, 1842)

    St: 25, 26, 27Leptochelia savignyi (Kryer, 1842)

    St: 14, 15, 17, 21, 22, 23, 25, 26, 27

    Familia Leptognathiidae Sieg, 1976Pseudoparatanais batei (G.O. Sars, 1882)

    St: 26Tanaopsis graciloides (Liljeborg, 1864)

    St: 14, 17, 21, 22, 23, 26, 27ORDEN MYSIDACEA

    Familia Mysidae Dana, 1850Praunus neglectus (G.O.Sars, 1869)

    St: 7, 20Paramysis sp.

    St: 8Erythrops sp.

    St: 7ORDEN ISOPODASUBORDEN GNATHIIDEA

    Familia Gnathiidae Harger, 1880Gnathia oxyurea (Lilljeborg, 1855)

    St: 22, 26SUBORDEN ANTHURIDEA

    Familia Anthuridae Leach, 1814Cyathura carinata (Kroyer, 1847)

    St: 3, 4, 5SUBORDEN FLABELLIFERA

    Familia Cirolanidae Dana, 1853Cirolana sp.

    St: 26

    Familia Sphaeromatidae (Dahl, 1916)Sphaeromatidae familia et genera sp ind.

    St: 1Lekanesphera levii (Argano y Ponticelli, 1981)

    St: 1, 2, 3, 4, 5, 6, 15SUBORDEN ASELLOTA

    Familia Janiridae Sars, 1897Janiropsis breviremis Sars, 1899

    St: 26

    Familia Munnidae Sars, 1899Munna sp.

    St: 7, 11, 18SUBORDEN VALVIFERA

    Familia Arcturidae Sars, 1899Arcturidae genera et sp ind.

    St: 16, 19Arcturella sp.

    St: 26

    Familia Idoteidae Samouelle, 1819Idotea baltica (Pallas, 1772)

    St: 1, 2, 3, 4, 5, 6, 15ORDEN AMPHIPODASUBORDEN GAMMARIDEAAmphipoda familia genera spp ind.

    St: 1, 2, 3, 5, 7, 10, 14, 17, 20, 21, 22, 25, 26, 27

    Familia Lysianassidae Dana, 1849Lepidepecreum longicorne (Bate y Westwood, 1861)

    St: 26Orchomene humilis (A.Costa, 1853)

    St: 21, 22, 23, 27Perrierella audouiniana (Bate, 1857)

    St: 26

    Familia Ampeliscidae Bate, 1861Ampelisca brevicornis (A. Costa, 1853)

    St: 8, 9, 11, 14, 16, 19Ampelisca remora Bellan-Santini y Dauvin, 1986

    St: 18, 26Ampelisca tenuicornis Liljeborg, 1855

    St: 9, 14, 16, 17, 19, 21, 22, 23, 26, 27, 28Ampelisca typica (Bate, 1856)

    St: 21, 22, 26, 27Ampelisca spp.

    St: 22, 23, 26, 27

    Familia Colomastigidae Stebbing, 1899Colomastix pusilla Grube, 1861

    St: 16, 23, 28

    Familia Amphilochidae Boeck, 1872Amphilochus spencebatei (Stebbing, 1876)

    St: 22, 26, 27Amphilochus neapolitanus Della Valle, 1893

    St: 23Gitana sarsi Boeck, 1871

    St: 27

    Familia Leucothoidae Dana, 1852Leucothoe incisa Robertson, 1892

    St: 14, 16, 17, 19, 21, 22, 23, 26, 27Leucothoe richiardii Lessona, 1865

    St: 16, 19, 21, 23

    Familia Stenothoidae Boeck, 1871Stenothoe monoculoides (Montagu, 1813)

    St: 2, 19, 26, 27

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  • Familia Hyalidae Bulycheva, 1957Hyale perieri (Lucas, 1849)

    St: 17

    Familia Gammaridae Leach, 1814Gammaridae genera et sp ind.

    St: 5, 15Echinogammarus sp.1

    St: 6Echinogammarus sp.2

    St: 13, 20Gammarus insensibilis Stock, 1966

    St: 1, 3, 7, 15, 20, 25

    Familia Melitidae Bousfield, 1973Melitidae genera et sp ind.

    St: 27Cheirocratus cf. intermedius Sars, 1894

    St: 14Gammarella fucicola (Leach, 1814)

    St: 21Maera grossimana (Montagu, 1808)

    St: 14, 26, 27Maera othonis (Milne-Edwards, 1830)

    St: 19, 21, 22, 23, 27Melita palmata (Montagu, 1804)St: 1, 2, 3, 4, 5, 6, 7, 14, 15, 17, 20, 21, 22, 27

    Familia Argissidae Walker, 1904Argissa hamatipes (Norman, 1869)

    St: 26

    Familia Oedicerotidae Liljeborg, 1865Oedicerotidae genera et sp ind.

    St: 14, 26Perioculodes longimanus (Bate y Westwood, 1868)

    St: 22Pontocrates altamarinus (Bate y Westwood, 1862)

    St: 26Westwoodilla rectirostris (Della Valle, 1893)

    St: 26

    Familia Phoxocephalidae Sars, 1893Phoxocephalidae genera et sp ind.

    St: 22Harpinia antennaria Meinert, 1890

    St: 21, 22, 23, 24, 25, 26, 27Harpinia crenulata (Boeck, 1871)

    St: 14, 17, 21, 22, 23, 26, 27Harpinia dellavallei Chevreux, 1910

    St: 16, 17, 19, 21, 22, 23, 24, 27Harpinia spp.

    St: 17, 26Metaphoxus simplex (Bate, 1857)

    St: 21, 22, 23, 26, 27

    Familia Dexaminidae Leach, 1814Atylus vedlomensis (Bate y Westwood, 1862)

    St: 18, 26

    Familia Aoridae Stebbing, 1899Aoridae genera et spp ind.

    St: 1, 4, 7, 9, 10, 11, 14, 16, 17, 23, 25, 27, 28Lembos sp.

    St: 7, 14, 16, 17, 19, 21, 23, 25, 26, 28Leptocheirus pilosus Zaddach, 1844

    St: 1Microdeutopus anomalus (Rathke, 1843)

    St: 10, 11, 20, 25Microdeutopus cf. armatus Chevreux, 1887

    St: 7, 8, 9, 11, 14, 16, 17, 19, 20, 21, 22, 23, 25,26, 27, 28

    Microdeutopus gryllotalpa A. Costa, 1853St: 1, 2, 3, 4, 7, 10, 11, 15, 20

    Microdeutopus versiculatus (Bate, 1856)St: 14, 17, 21, 22, 23, 25, 26, 27

    Microdeutopus sp.St: 9

    Familia Isaeidae Dana, 1853Isaeidae genera et spp ind.

    St: 20, 21, 25, 26Gammaropsis maculata (Johnston, 1827)

    St: 14, 17, 19, 21, 22, 26, 27Gammaropsis palmata (Stebbing y Robertson, 1891)

    St: 19, 22, 26, 27Gammaropsis sophiae (Boeck, 1861)

    St: 18, 19, 21, 23, 26Gammaropsis spp.

    St: 19, 21, 26, 27Megamphopus cf. longicornis Chevreux, 1911

    St: 26, 27Photis longicaudata (Bate y Westwood, 1862)

    St: 14, 16, 17, 19, 23, 24, 26, 27, 28Photis longipes (Della Valle, 1893)

    St: 26Photis sp.

    St: 16, 23

    Familia Corophiidae Dana, 1849Corophium acherusicum (A. Costa, 1851)

    St: 1, 2, 4, 5, 7, 20Corophium acutum Chevreux, 1908

    St: 7, 8, 10, 20, 21, 25Corophium insidiosum Crawford, 1937

    St: 2, 7, 20Corophium multisetosum Stock, 1952

    St: 3, 18Corophium cf. runcicorne Della Valle, 1893

    St: 7, 8, 14, 16, 17, 19, 21, 22, 23, 26, 27, 28Corophium sextonae Crawford, 1937

    St: 1, 2, 3, 9, 10, 18, 23, 27Corophium spp.

    St: 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19,20, 21, 22, 23, 26, 28

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  • Familia Ischyroceridae Stebbing, 1899Ericthonius punctatus (Bate, 1857)

    St: 1, 2, 4, 7, 10, 11, 21, 22, 26SUBORDEN CAPRELLIDEA

    Familia Caprellidae White, 1847Caprella sp.

    St: 9, 18, 22

    Familia Pariambidae Laubitz, 1993Pariambus typicus (Kroyer, 1844)

    St: 9, 14, 17, 18, 19, 22, 23, 24, 27

    Familia Phtisicidae Vassilenko, 1968Phtisica marina Slabber, 1769

    St: 19, 21, 22, 23, 26, 27SUPERORDEN EUCARIDAORDEN DECAPODALarva Decapoda

    St: 10, 12Juvenil Natantia

    St: 23INFRAORDEN CARIDEA

    Familia Palaemonidae Rafinesque, 1815Palaemon elegans Rathke, 1837

    St: 20Palaemon serratus (Pennant, 1777)

    St: 7, 20

    Familia Alpheidae Rafinesque, 1815Athanas nitescens (Leach, 1814)

    St: 20

    Familia Cangronidae Haworth, 1825Crangon crangon (Linneo, 1758)

    St: 3, 17, 18, 27INFRAORDEN ANOMURA

    Familia Callianassidae Dana, 1852Callianassidae genera et sp ind.

    St: 16

    Familia Upogebiidae Borradaille, 1903Upogebia deltaura (Leach, 1815)

    St: 14

    Familia Paguridae Latreille, 1803Anapagurus hyndmanni (Bell, 1846)

    St: 26, 27

    Familia Porcellanidae Haworth, 1825Pisidia longicornis (Linneo, 1767)

    St: 9, 17, 22, 23INFRAORDEN BRACHYURA

    Familia Majidae Samouelle, 1819Inachus leptochirus Leach, 1817

    St: 22, 26Macropodia rostrata (Linneo, 1761)

    St: 22

    Familia Portunidae Rafinesque, 1815Liocarcinus arcuatus (Leach, 1814)

    St: 27Carcinus maenas (Linneo, 1758)

    St: 1, 2, 3, 4, 5, 15, 20SUBFILO HEXAPODACLASE INSECTAInsecta familia genera et sp ind,1

    St: 2Larva Insecta familia genera et sp ind. 2

    St: 1, 2, 3, 4, 10, 11, 20SUBFILO CHELICERATACLASE ARACHNIDA

    Familia Halacaridae Murray, 1876Halacaridae genera et sp ind. 1

    St: 10, 25, 26, 27Halacaridae genera et sp ind.2

    St: 9, 26Halacaridae genera et sp ind.3

    St: 20CLASE PYCNOGONIDA

    Familia Ammotheidae Dohrn, 1881Ammotheidae genera et sp ind.

    St: 21, 22, 26Achelia echinata Hodge, 1864

    St: 7, 14

    Familia Phoxichilidiidae Sars,1891Anoplodactylus petiolatus (Kroyer, 1884)

    St: 21, 27FILO MOLLUSCACLASE POLYPLACOPHORAORDEN ISCHNOCHITONINA

    Familia Ischnochitonidae Dall, 1889Lepidochitona cinerea (Linneo, 1767)

    St: 4, 5, 8, 15, 21Chaetopleura angulata (Spengler, 1797)

    St: 27ORDEN ACANTHOCHITONINA

    Familia Acanthochitonidae Pilsbry, 1893Acantochitona crinitus (Pennant, 1777)

    St: 27CLASE SCAPHOPODA

    Familia Dentaliidae Gray, 1874Dentalium novemcostatum Lamarck, 1818

    St: 22

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  • CLASE GASTROPODAGastropoda familia et genera sp ind.

    St: 18, 19, 23SUBCLASE PROSOBRANCHIAORDEN ARCHAEOGASTROPODA

    Familia Tricoliidae Woodring, 1928Tricolia pullus (Linneo, 1758)

    St: 18ORDEN CAENOGASTROPODA

    Familia Littorinidae Gray, 1840Littorina littorea (Linneo, 1758)

    St: 15

    Familia Hydrobiidae Stimpson, 1865Hydrobia ulvae (Pennant, 1777)

    St: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 17,20, 21, 23, 24, 25, 28, 29

    Familia Iravadiidae Thiele, 1928Hyala vitrea (Montagu, 1803)

    St: 19, 22, 23, 27

    Familia Rissoidae Gray, 1847Rissoa labiosa (Montagu, 1803)

    St: 1, 2, 6, 7, 10, 15, 20, 22, 23, 25Alvania punctura (Montagu, 1803)

    St: 22Onoba striata (Montagu, 1803)

    St: 25, 27Turboella inconspicua (Alder, 1844)

    St: 19Turboella radiata (Philippi, 1836)

    St: 7, 8, 10, 11, 15, 16, 18, 20, 25, 29

    Familia Turritellidae Woodward, 1851Turritella communis Risso, 1826

    St: 26

    Familia Cerithiidae Fleming, 1822Bittium reticulatum (Costa, 1778)

    St: 15, 26, 28

    Familia Calyptraeidae Blainville, 1824Calyptraea chinensis (Linneo, 1758)

    St: 7, 8, 9, 11, 12, 13, 14, 16, 17, 18, 20, 21, 22,26, 27

    Crepidula fornicata (Linneo, 1758)St: 19, 27

    Familia Naticidae Gray, 1840Lunatia alderi (Forbes, 1838)

    St: 13, 19, 26

    Familia Nassariidae Iredale, 1916Nassarius cabrierensis ovoideus (Locard, 1886)

    St: 15, 22Nassarius pygmaeus (Lamark, 1822)

    St: 4, 8, 9, 12, 13, 14, 17, 18, 19, 21, 22, 23, 25,27

    Nassarius reticulatus (Linneo, 1758)St: 4, 5, 7, 8, 16, 19, 20, 21, 22, 23, 26, 27

    Familia Turridae Swainson, 1840Mangelia attenuata (Montagu, 1803)

    St: 26, 27Mangelia nebula (Montagu, 1803)

    St: 16, 22, 27Raphitoma linearis (Montagu, 1803)

    St: 22

    Familia Eulimidae H. y A. Adams, 1853Melanella alba (Costa, 1778)

    St: 17, 22, 26, 27Vitreolina collinsi (Sykes, 1903)

    St: 23

    Familia Pyramidellidae Gray, 1840Chrysallida fenestrata (Jeffreys, 1848)

    St: 8, 9, 14, 16, 18, 22, 26, 27Chrysallida indistincta (Montagu, 1808)

    St: 25Chrysallida terebellum (Philippi, 1844)

    St: 1, 2, 3, 4, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 20,21, 23, 25, 26

    Odostomia acuta Jeffreys, 1848St: 22, 23

    Odostomia unidentata (Montagu, 1803)St: 26

    Turbonilla pusilla (Philippi, 1844)St: 26, 27

    SUBCLASE OPISTOBRANCHIAOpistobranchia familia, genera et spp ind.

    St: 15Sacoglossa genera et spp ind.

    St: 20ORDEN CEPHALASPIDEA

    Familia Haminoeidae Pilsbry, 1895Haminoea navicula (Costa, 1778)

    St: 5, 7, 15, 16, 22

    Familia Retusidae Thiele, 1926Retusa truncatula (Bruguire, 1792)

    St: 4, 5, 7, 8, 9, 13, 15, 16, 20

    Familia Scaphandridae Sars, 1878Cylichna cylindracea (Pennant, 1777)

    St: 17, 22, 23ORDEN ANASPIDEA

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  • Familia Akeridae Pilsbry, 1893Akera bullata Mller, 1776

    St: 17, 23ORDEN SACOGLOSSA

    Familia Elysiidae Forbes & Hanley, 1851Elysia viridis (Montagu, 1804)

    St: 11

    Familia Limapontiidae Gray, 1847Limapontia sp.

    St: 2, 6, 14, 15, 22CLASE BIVALVIABivalvia familia, genera et sp ind.

    St: 9, 18, 27SUBCLASE PALAETAXODONTAORDEN NUCULOIDA

    Familia Nuculidae Gray, 1824Nucula nitidosa Winckworth, 1930

    St: 8, 12, 14, 16, 17, 19, 21, 22, 23, 25, 26, 27, 28SUBCLASE PTERIOMORPHIAORDEN MYTILOIDA

    Familia Mytilidae Rafinesque, 1815Mytilidae genera et sp ind

    St: 21, 22, 26Mytilus galloprovincialis Lamarck, 1819

    St: 4, 5Musculus subpictus (Cantraine, 1835)

    St: 21, 22, 23, 27Modiolus adriaticus (Lamarck, 1819)

    St: 2, 3, 4, 5, 6ORDEN PTERIOIDA

    Familia Pectinidae Rafinesque, 1815Aequipecten opercularis (Linneo, 1758)

    St: 27

    Familia Anomiidae Rafinesque, 1815Pododesmus aculeata (Mller, 1776)

    St: 26, 27

    Familia Ostreidae Rafinesque, 1815Ostrea edulis Linneo, 1758

    St: 4, 21SUBCLASE HETERODONTAORDEN VENEROIDA

    Familia Lucinidae Fleming, 1828Loripes lacteus (Linneo, 1758)

    St: 1, 2, 5, 8, 9, 10, 13, 14, 16, 18, 19, 22, 23, 24,28

    Myrtea spinifera (Montagu, 1803)St: 17, 21, 22, 23, 26, 27

    Familia Thyasiridae Leach y Lamark, 1818Thyasira flexuosa (Montagu, 1803)

    St: 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23,25, 26, 27, 28

    Familia Leptonidae Gray, 1847Lepton nitidum Turton, 1822

    St: 4, 5, 6, 14, 15

    Familia Montacutidae W. Clark, 1852Mysella bidentata (Montagu, 1803)

    St: 4, 7, 8, 9, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22,23, 25, 26, 27, 28

    Familia Cardiidae Lamarck, 1809Parvicardium exiguum (Gmelin in Linneo, 1791)

    St: 7, 8, 9, 10, 11, 14, 15, 18, 20, 22, 23, 25, 26,27

    Parvicardium scabrum (Philippi, 1844)St: 22, 26

    Cerastoderma edule (Linneo, 1758)St: 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 18, 25,27

    Familia Mactridae Lamarck, 1809Spisula elliptica (Brown, 1827)

    St: 12, 14

    Familia Solenidae Lamarck, 1809Solen marginatus (Pennant, 1777)

    St: 8, 22Ensis siliqua (Linneo, 1758)

    St: 14

    Familia Tellinidae Blainville, 1814Angulus tenuis (Costa, 1778)

    St: 4Moerella donacina (Linneo, 1758)

    St: 7, 9, 14, 17, 18, 19, 21, 22, 26, 28

    Familia Scrobiculariidae H. y A. Adams, 1856Scrobicularia plana (Costa, 1778)

    St: 1

    Familia Semelidae Stoiczka, 1870Abra alba (Wood, 1802)

    St: 2, 3, 7, 8, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,22, 23, 25, 26, 27, 28

    Abra nitida (Mller, 1789)St: 8, 9, 13, 14, 17, 18, 22, 28

    Familia Solecurtidae Orbigny, 1846Pharus legumen (Linneo, 1758)

    St: 14, 17

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  • Familia Veneridae Rafinesque, 1815Chamelea striatula (Costa, 1778)

    St: 21Dosinia exoleta (Linneo, 1758)

    St: 14, 15, 22Tapes decussatus (Linneo, 1758)

    St: 4, 5, 6, 15Venerupis senegalensis (Gmelin, 1791)

    St: 4, 14, 15, 20, 22, 26, 27Venerupis aurea (Gmelin in Linneo, 1791)

    St: 15

    Familia Corbulidae Lamarck, 1818Corbula gibba (Olivi, 1792)

    St: 9, 12, 14, 17, 21, 22, 26, 27FILO PHORONIDA

    Familia PhoronidaePhoronis psammophila Cori, 1889

    St: 7, 9, 12, 13, 16, 18, 19, 20, 24FILO ECHINODERMATACLASE OPHIUROIDEAOphiuroidea familia, genera et spp ind.

    St: 10, 14, 16, 17, 19, 22, 24, 26, 27

    Familia Ophiacanthidae Matsumoto, 1915Ophiacantha sp.

    St: 23, 26

    Familia Ophiuridae Lyman, 1865Ophiura ophiura (Linneo, 1758)

    St: 14, 22, 23

    Familia Amphiuridae Ljungman, 1866Amphiura brachiata (Montagu, 1804)

    St: 14Amphiura chiajei Forbes, 1843

    St: 17, 26Amphipholis squamata (Chiaje, 1828)

    St: 7, 14, 19, 21, 22, 23, 26, 27CLASE ECHINOIDEAEchinoidea familia, genera et sp ind.

    St: 26

    Familia Echinidae Gray, 1825Psammechinus miliaris (Gmelin, 1778)

    St: 22, 26CLASE HOLOTHUROIDEAHolothurioidea familia, genera et sp ind.

    St: 27

    Familia Cucumariidae Ludwig, 1894Trachythyone elongata (Dben y Koren, 1844)

    St: 12, 14, 16, 18, 19Aslia lefevrei (Barrois, 1882)

    St: 21, 22, 27

    Familia Synaptidae Burmeister, 1837Leptosynapta inhaerens (O.F. Mller, 1776)

    St: 16FILO CHAETOGNATAChaetognatha familia, genera ind.sp.1

    St: 7Chaetognatha familia, genera ind sp.2

    St: 18, 23, 26, 29Juvenil Chaetognatha familia, genera ind sp.3

    St: 28FILO CHORDATASUBFILO UROCHORTADACLASE ASCIDIACEAAscidiacea familia, genera sp ind.

    St: 7, 27

    Familia Asciidae Herdman, 1880Phallusia mammillata (Cuvier, 1815)

    St: 14, 21, 22, 26, 27

    Familia Molgulidae Lacaze-Duthiers, 1877Molgulidae henera et sp ind.

    St: 14, 22, 26, 27SUBFILO EUCHORDATACLASE OSTEICHTHYESORDEN GOBIOESOCIFORMES

    Familia GobiesocidaeApletodon dentatus (Facciola, 1887)

    St: 22ORDEN SYNGNATHIFORMES

    Familia SyngnathidaeSyngnathus sp.

    St: 3ORDEN PERCIFORMES

    Familia GobiidaePomatochistus sp.

    St: 7

    3.2. Riqueza faunsticaLos grupos que han presentado un mayor

    nmero de especies en la Ensenada de San Simnhan sido los anlidos poliquetos, los crustceosmalacostrceos y los moluscos. Los poliquetoshan aparecido como grupo dominante en funcindel nmero de especies en 20 de las estacionesanalizadas. Su importancia relativa aumenta en elrea fangosa media y externa de la ensenada,mientras que los crustceos, dominantes en 8 delas estaciones muestreadas, presentan un mayornmero de especies en la zona arenosa interior y

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    Bol. R. Soc. Esp. Hist. Nat. Sec. Biol., 103 (1-4), 2009.

  • en estaciones prximas a playas con sedimentosfangosos. La contribucin a la riqueza de especiesde diversos grupos como los filos Nematoda,Nemertea o el orden Harpacticoida, no puededeterminarse con exactitud ya que no han podidoser determinados a nivel especfico.

    Las familias de poliquetos mejor representa-das en la ensenada en nmero de especies sonSyllidae, Spionidae y Phyllodocidae. La mayorade las especies de la familia Syllidae estn pre-sentes en la zona media y externa de la ensenada,donde el sedimento es ms fangoso y la salinidadmayor, exceptuando algunos casos como el deParapionosyllis minuta, solamente presente en lazona arenosa ms interna. La familia Spionidaepresenta especies, como Polydora ciliata o Stre-blospio shrubsolii, que estn mejor representadasen los fondos arenosos del interior y los mrgenesde la ensenada; otras, como Prionospio pulchra,muestran preferencia por los fondos fangosos de lamitad externa. Pseudopolydora paucibranchiata esla especie ms ubicua y est presente en la totalidaddel rea estudiada. Las dos familias mencionadasson las que presentan un mayor nmero de especies(14), seguidas por la familia Phyllodocidae, con 11especies presentes sobre todo en la mitad externa dela ensenada. Dentro del grupo de los moluscos, enfuncin del nmero de especies dominan los gaste-rpodos piramidlidos, con 6 especies distribuidasprincipalmente en la mitad externa de la ensenada,y los bivalvos venridos, con 5.

    El Orden Amphipoda es el que contiene unmayor nmero de especies dentro de los crustce-os (60), con preferencia por los fondos fangososde la zona media y externa de la ensenada, aexcepcin de Melita palmata, Leptocheirus pilo-sus, Corophium acherusicum, Microdeutopus gry-llotalpa o Carcinus maenas, distribuidos en lazona ms interna y los mrgenes arenosos. Comose observa en la Tabla I, existe un aumento delnmero de especies hacia la boca de la ensenadadesde las zonas ms internas.

    4. DISCUSIN

    Los valores de nmero de especies ms ele-vados se encuentran en las estaciones situadas enlas inmediaciones del Estrecho de Rande, fondoscon condiciones ms estables en trminos de sali-nidad e hidrodinmica (NOMBELA et al., 1987). Enestos fondos, que superan los 10 metros de pro-fundidad, proliferan especies menos resistentes aamplias variaciones de salinidad.

    Esta riqueza de especies va disminuyendoconforme nos desplazamos a las zonas ms inter-

    nas de la ensenada, de forma que las estacionescon menor nmero de especies son los fondos fan-gosos cercanos a las desembocaduras de los ros yen las inmediaciones de los puertos. Las condicio-nes de estrs a las que estn sometidas las estacio-nes ms internas, tanto las intermareales como lassubmareales ms someras, influyen en el nmeroy el tipo de especies que habitan estos fondos ydominan sus comunidades (KIKUCHI, 1987; PLA-NAS & MORA, 1987). Por ejemplo, la especieHydrobia ulvae aparece aqu en muy altas densi-dades, lo que ha sido citado tambin en las zonasinternas de otras ras gallegas (CURRS & MORA,1990; JUNOY, 1996; OLABARRIA et al., 1998). Lasfanergamas Zostera marina y Z. noltii alberganpocas especies en la ensenada, ya que aunqueestas praderas suelen proveer de hbitats a nume-rosas especies (ORTH, 1977; PETERSON et al.,1984; SOMERSFIELD et al., 2002), en San Simnestn sometidas a salinidades muy fluctuantes y aestrs por desecacin, factores limitantes paramuchas especies bentnicas (KIKUCHI, 1987; PLA-NAS & MORA, 1987; JUNOY, 1996). PLANAS &MORA (1987) tambin sealaron la dominancia deespecies eurihalinas en comunidades estuarinassometidas a importantes oscilaciones fsicas.

    El bajo nmero de especies del interior de lasras gallegas ha sido relacionado con el alto conte-nido en materia orgnica existente, lo que puedeocasionar condiciones de anoxia (PLANAS &MORA, 1987). Adems, en muchas de ellas se estnproduciendo importantes acumulaciones de sedi-mentos finos, tanto debido a cambios en la hidro-dinmica causados por la construccin de espigo-nes, como ya han sealado MOREIRA et al. (2005)en Baiona, como los derivados del cultivo de meji-lln (ABELLA et al., 1996). La Ensenada de SanSimn, a pesar de su naturaleza fundamentalmen-te fangosa y el alto contenido en materia orgnica(16.2 % 9.07, media desviacin estndar),muestra un nmero de especies relativamente ele-vado (379), al compararlo con reas de similarescaractersticas. La composicin y distribucin dela fauna bentnica de la ensenada es la caracters-tica de fondos fangosos ricos en materia orgnica,y se asemeja a las descritas por ANADN (1980) yLPEZ-JAMAR & CAL (1990) para la Ra de Vigo,por LPEZ-JAMAR (1978), RODRGUEZ-CASTELO &MORA (1984) y MORA et al. (1982) para Ponteve-dra, por LPEZ-JAMAR (1981) para la Ra deMuros, MORA (1980) y LPEZ-JAMAR (1982) parala Ra de Arousa, por LPEZ-JAMAR & MEJUTO(1986) o PARRA & LPEZ-JAMAR (1997) paradeterminadas reas de la Ra de A Corua y porOLABARRIA (1995) para la Ensenada de O Bao(Ra de Ferrol).

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    Bol. R. Soc. Esp. Hist. Nat. Sec. Biol., 103 (1-4), 2009.

  • Los fondos ms arenosos y oxigenados deotras ras gallegas hacen que el nmero de espe-cies en ellos encontrados sean superiores a losvalores de San Simn: 474 especies aparecen cita-das en la Ensenada de Baiona (MOREIRA & TRON-COSO, 2007), 426 especies en la Ra de Ares yBetanzos (GARMENDIA et al., 1998), 126 moluscosencontrados en la Ra de Aldn frente a los 73encontrados en San Simn (LOURIDO et al., 2006)o 145 poliquetos en Aldn frente a los 129 encon-trados en San Simn (LOURIDO et al., 2008).

    5. AGRADECIMIENTOS

    Agradecemos a los compaeros del grupo deAdaptaciones de Animales Marinos su inestima-ble ayuda en la recoleccin de las muestras, ascomo su valiosa ayuda en la identificacin de losorganismos. Este trabajo forma parte del proyectode investigacin PGIDT 00PXI30119 PR.Recibido el da 19 de junio de 2008Aceptado el da 13 de julio de 2009

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