1052 E. Biological Oceanography OLR (1985) 32 (12)

85:7319 Swift, D,J., 1985. The acctmminfloa of ~ T c from

seawater by Jmveaile ~ ( ~ smmtm'- as L.). J. environ. Radioactivity, 2(3):229,243. MAFF, Fish. Lab., Pakefield Rd., Lowestoft, Suffolk NR33 0HT, UK.

85:7320 Verschraegen, K., P.M.J. Herman, D. Van Gansbeke

and A. Braeckman, 1985. Measurement of the adenylate energy charge in Nefe/s d/vers/~/or and Nephtys sp. (Polychaeta: Annelida): evalu- ation of the usefulness of AEC in pollution monitoring. Mar. Biol., 86(3):233-240.

The adenylate energy charge (AEC) is a recently developed biochemical assay which is being eval- uated as an index of pollution stress. This study measured ATP concentrations and AEC in popu- lations of the polychaete Nereis diversicotor or Nephtys sp. from polluted and unpolluted areas in the Western Scheldt Estuary (N. Belgium, S. Hol- land). The authors argue that AEC values are not valuable as a pollution assessment tool. This work also describes a reliable assay for ATP, ADP, and AMP. Inst. voor Dierkunde, Rijksuniv. Gent, K.L. Ledeganckstraat 35, B-9000 Gent, Belgium. (jst)

85:7321 Viarengo, A., S. Palmero, G. Zani¢chi, R. CapeUi, R.

Vaissiere and M. Orunesu, 1985. Role of metal. Iothloneins in Cu and Cd ~ and ellmlmfloa in the gill and digestive gland cells of Myti l~ W d l O l K O ~ l.am. Mar. environ. Res., 16(1):23-36. Ist. di Fisiologia Gen., Univ. di Genova, Italy.

85:7322 Zamuda, C.D., D.A. Wright and R.A. Smucker,

1985. The imlNCtanee of dimoived ~ com- pounds in the acemmtladoa of ~ by the American oyster, Crassostr~ vhl#ak~ Mar. environ. Res~ 16(1):1-12. Off. of Emergency and Remedial Response, U.S. EPA, Washington, DC 20460, USA.

85:7323 Zoto, G.A. and W.E. Robinson, 1985. The ~ of

one-boer silver excemns to early-life ~ of

the surf clam Spisula solidissima (Dflbvyn). Mar. environ. Res., 16(1):61-75. Comm. of Mass. DEQE, Off. of Res. & Stds., 1 Winter St., Boston, MA 02108, USA.

E370. Theoretical biology and ecology

85:7324 Golikov, A.N., 1985. Zonaflons and o r b i t

~ : s on the cmpreheasive review by P(sr~s (1982). Mar. Ecol.-Prog. Ser., 23(2):203-206.

The comprehensive review (in 'Marine Ecology', Wiley & Sons) is of great importance to marine scientists. However, some of the general concepts presented are incorrect in terms of recent ideas about zonations and ecosystems. In regard to vertical and horizontal lxmations the most signif- icant factors are not the degree of illumination and primary production at different depths and latitudes, but physicochemical conditions within the same regions and water masses and their layers, which determine origin, vertical and horizontal distribution and often abundance in ecosystems composed of different genotypes. For the terms used application of the principle of priority is proposed. For assessing the regular structure of natural ecosystems featuring quantitative predominance of a few genotypes, the term 'biocoenosis' (introduced by MObius) should be used. Zool. Inst., Acad. of Sci., Leningrad V-t64, USSR.

85:7325 Patten, B.C., 1985. Energy cycling in the ecosystem.

Ecol. Model., 28(1-2): 1-71.

The principle that energy does not cycle in ecosys- tems is examined by path and flow analyses of a small, steady state, energy model of an oyster reef community. Path numbers increase combinatorially without bound as path length increases, at much faster rates with energy storage than without. Energy flows over only very short paths in the nonstorage case, but with storage present most flow is associated with long paths. Energy does cycle in ecosystems; it differs from matter in its dissipation, not cy¢ling, characteristics. Energy storage as biomass is the root cause of ecosystem energy cycling. Issues of food chain length and embodied energy are reviewed. Dept, of Zool., Univ. of Georgia, Athens, GA 30602, USA.