planning for a new guide on louisianas inland fishes henry l. bart, jr. tulane university museum of...
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Planning for a new guide on Louisiana’s inland fishes
Henry L. Bart, Jr. Tulane University Museum of Natural History
Belle Chasse, LA 70037
Frank PezoldMuseum of Natural History, University of Louisiana
Monroe, LA 71209
Neil H. Douglas’ (1974) Neil H. Douglas’ (1974) Fishes of LouisianaFishes of Louisiana
First comprehensive bookFirst comprehensive bookon freshwater fishes in theon freshwater fishes in thestate.state.
Covered all of the diversity Covered all of the diversity known at the time.known at the time.
Included dichotomous keysIncluded dichotomous keysand accounts on each ofand accounts on each ofthe species.the species.
Discussed drainage basins Discussed drainage basins and geology of the stateand geology of the state
Not unlike other fish guides ofNot unlike other fish guides ofits time: small, compact, handyits time: small, compact, handyfor use in the field.for use in the field.
New paradigm in state fish guides
Species account in Douglas’ Species account in Douglas’ Fishes of LouisianaFishes of Louisiana
DistributionDistributioninformationinformation
TaxonomicTaxonomicinformationinformation
Very little information about biologyVery little information about biology
Hand-madeHand-madeDistribution Distribution mapmap
Pen and inkPen and inkillustrationillustrationof speciesof species
Species account in Boschung et al.’s Species account in Boschung et al.’s Fishes of AlabamaFishes of Alabama
•Color illustrationColor illustration
•State and overallState and overall distributiondistribution
•General description General description and characteristicsand characteristics
•Similar speciesSimilar species
•HabitatHabitat
•BiologyBiology
•ConservationConservation
•SystematicsSystematics
Boschung et al.’s Boschung et al.’s Fishes of AlabamaFishes of Alabama
Illustrated keysIllustrated keysshowing what showing what characters used characters used in couplets look in couplets look like on the fish.like on the fish.
Want to give the people of Louisiana a book that is as massive as these recent books, has all of the special features, and more…
Recipes?, importance of fish to Louisiana culture?, fishing jokes?
Have to educate people about the rich variety of non-game fishes in the state.
What do we plan to do about it?What do we plan to do about it?
A lot has changed • Douglas (1974) treated 148 species of freshwater and
diadromous fishes
• Douglas and Jordan (2002) reported 170 species (still
limited to freshwater and diadromous fishes)
• Our tally includes 219 species: 165 freshwater or diadromous species and 54 marine fishes that spend significant amounts of time in freshwater…
Marine invaders
Stingray, anchovy, Stingray, anchovy, ladyfish, smelt, ladyfish, smelt, 3 mullets, 3 sleepers, 3 mullets, 3 sleepers, 5 gobies, 3 jacks, 5 gobies, 3 jacks, 8 drum, 3 flounders, 8 drum, 3 flounders, mackerel, pipefish, mackerel, pipefish, needlefish, worm eel, needlefish, worm eel, snapper, mojarrasnapper, mojarra
0
0.2
0.4
0.6
0.8
1
1.2
1.4
Some things lost…Some things lost…
Pearl darter, Pearl darter, Percina auroraPercina aurora
Some things gainedSome things gained
Grass carpGrass carp Ctenopharyngodon idellaCtenopharyngodon idella
Black carpBlack carp Mylopharyngodon piceusMylopharyngodon piceus
Silver carpSilver carp Hypophthalmichthys molitrixHypophthalmichthys molitrix
Bighead carp Bighead carp Hypophthalmichthys molitrixHypophthalmichthys molitrix
Fishes of Louisiana’sFishes of Louisiana’sInland WatersInland Waters
Henry L. Bart Jr. and Frank PezoldHenry L. Bart Jr. and Frank Pezold
Steps in the book building process• Assemble comprehensive database of all fish occurrence records in LA, Assemble comprehensive database of all fish occurrence records in LA,
based on museum holdings (vouchered records) and verifiable records based on museum holdings (vouchered records) and verifiable records from other sources.from other sources.
• Georeference all occurrence records.Georeference all occurrence records.
• Use occurrence/effort maps to identify areas of the state in need of Use occurrence/effort maps to identify areas of the state in need of additional survey to document fish changes. Conduct surveys additional survey to document fish changes. Conduct surveys (photography).(photography).
• Analyze abundance/occurrence trends for all included species and to Analyze abundance/occurrence trends for all included species and to produce updated distribution maps.produce updated distribution maps.
• Update conservation status of rare and protected fishesUpdate conservation status of rare and protected fishes
• Organize task of writing the book: use technology to build keys; recruit Organize task of writing the book: use technology to build keys; recruit authors/experts for species accounts; hire artists.authors/experts for species accounts; hire artists.
Use technology to simplify map productionUse technology to simplify map production
Used GEOLocate to georeference 7,340 unique locality strings (23,044 lots) from the ULM collection.
6,576 localities were georeferenced with varying levels of accuracy (89.4%).
Total time was 1 hour and 52 minutes.
Coordinates need to visualized/corrected.
Electronically produced distribution maps
Prior to 1990 1990 to present
We were able to generate these maps based on data in the TUMNH and ULM fish collections; show areas of the state that need to be resurveyedto determine current status of fishes.
Timetable
• We anticipate that the overall project will take 5-10 years to complete.
• Intend to publish a number of intermediate reports during this process, including an updated species list, distribution atlas, and various data analysis summaries, to inform the scientific community and general public of our progress.
• Website will be established for all products and special education resources.
Needs
• Have the expertise and most of the necessary data
• $$$
• Time
($$$ = Time)
• Publisher
( )
Thanks for your attention!
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