776 E. Biological Oceanography OLR (I 987) 34 (9)

87:5153 Fonseca-Genevois, V.d. and Franqois Ottmann,

1987. Influences of tidal water position and sediment physical properties on the meiofanna of an Atlantic mud-flat (Loire Estuary, France). C. r. Acad. Sci., Paris, (S6r. III)304(7):161-166. (In French, English abstract.) Mus. natl. d'Histoire nat., Lab. des Vers, 61, rue Buffon, Paris, France.

87:5154 Foster, S.A., 1987. The relative impacts of grazing by

Caribbean coral reef fishes and Diadems: effects of habitat and surge. J. exp! mar. Biol. Ecol., 105(1):1-20. Dept. of Ecol. and Evolution, SUNY, Stony Brook, NY 11794, USA.

87:5155 Fr~chette, M. and E. Bourget, 1987. Significance of

small-scale spatio-temporal heterogeneity in phy- toplankton abundance for energy flow in Mytilus edulis. Mar. Biol., 94(2):231-240. Inst. Maurice- Lamontagne, Service des Sci., Peches et Oceans, 850, Route de la Mer, Mont-Joli, PQ G5H 3Z4, Canada.

87:5156 Jensen, P., 1987. Differences in microhabitat, abun-

dance, biomass and body size between oxybiotic and thiobiotic free-living marine nematodes. Oecologia, 71(4):564-567. Sonderforschungs- bereich 313 der Univ. Kiel, Olshausenstr. 40, D-2300 Kiel, FRG.

87:5157 Leigh, E.G. Jr., R.T. Paine, J.F. Quinn and T.H.

Suchanek, 1987. Wave energy and intertidal productivity. Proc. hath. Acad. Sci. U.S.A., 84(5): 1314-1318.

Intertidal zones of the most wave-beaten shores receive more energy from breaking waves than from the sun. Despite severe mortality from winter storms, communities at some wave-beaten sites produce an extraordinary quantity of dry matter per unit area of shore per year. Intertidal organisms cannot trans- form wave energy into chemical energy, nor can they 'harness' wave energy. Nonetheless, wave energy enhances their productivity. On exposed shores, waves may increase the capacity of resident algae to acquire nutrients and use sunlight, augment the competitive ability of productive organisms, and protect intertidal residents by knocking away their enemies or preventing them from feeding. Smith- sonian Tropical Res. Inst., Apartado 2072, Balboa, Panama.

87:5158 Liu, Ruiyu, Yuheng Cui, Fengshan Xu and Zhican

Tang, 1986. Ecological characteristics of mac- robenthos of the Yellow Sea and the East China Sea. Stud. mar. sin., 27:153-173. (In Chinese, English abstract.)

The benthic fauna of the East China, Yellow, and Bohai seas was studied qualitatively and quanti- tatively and related both to sediment type and oceanographic conditions (influenced by the Ku- roshio and Taiwan warm currents, the East China and Huanghai sea coastal current, the Changiiang and Huanghe rivers, and the Yellow Sea cold water mass). Twenty-two macrobenthos communities are identified, consisting of species from 3 major ecological groups. Although biomass is low, pro- ductivity is high and seasonally variable. Certain species are indicative of current systems, water masses, or sediment type. Inst. of Oceanol., Acad. Sinica, People's Republic of China. (gsb)

87:5159 Mullineaux, L.S., 1987. Organisms living on man-

ganese nodules and crusts. Distribution and abundance at three North Pacific sites. Deep-Sea Res., 34(2A): 165-184.

The organisms on nodules collected at two sites (equatorial and central North Pacific) and on crusts collected at one site (seamount chains near the Hawaiian Islands) were identified and quantified. Eukaryotic organisms attached to a nodule can cover up to 20% of the upper surface. The number of hard-substrate organisms per area of seafloor was about 10 times the faunal density of the nearby soft-substrate macrofauna, but only about a tenth of the faunal density of sediment-dwelling meiofauna. Foraminifers, many undescribed even at the family level, are the predominant taxonomic group, both in number of individuals and in percentage cover. Suspension feeding metazoans and rhizopod pro- tozoans suspected of suspension feeding were com- mon in the hard-substrate fauna at all sites. Scripps Inst. of Oceanogr., Univ. of Calif., La Jolla, CA 92093, USA.

87:5160 Richardson, M.D. and D.K. Young, 1987. Abyssal

benthos of the Venezuela Basin, Caribbean Sea: standing stock considerations. Deep-Sea Res., 34(2A): 145-164.

Total biomass was dominated by microbiota and filter-feeding glass sponges that were abundant in both macrofaunal and megafaunal size classes. The remaining biomass was divided among predomi- nantly deposit-feeding meiofauna, macrofauna and megafauna. By contrast, biomass in shallow-water