882 E. Biological Oceam*graph_~ OLR ( !98 !) 28 (121

81:6650 Reeve, M.R., 1981. I m ~ ¢od -ud ~ 1 ~ to 30

L volume i as an aid to the live ~ of delicate ZOOl~,m~ton. Limnol. Oceanogr., 26(3): 577-580. Rosenstiel School of Mar. and Atmos. Sci., Univ. of Miami, Fla. 33149, USA.

E40. A r e a s tudies , su rveys (baselines, ecology, etc.)

81".6651 Bowerman, Martin (ed.), 1981. l a b i a : fisheries,

estuaries, ~ v e s , coastal: ~ l A ust. Fish, 40(1):58pp; 15 papers.

81:6652 Chapman, A.R.O., 1981. Stability of sea urchin

domin~ barren grou~-~_ following desm~ve 'S grazing of kelp in St. ~ Bay, eastern

Canada. Mar. Biol., 62(4):307-31 !.

Regenerated kelp in grazed areas was eliminated by sea urchins within 10 months; kelp recolonization does not appear possible with existing sea urchin densities. Over 60% of primary production in the bay was lost through kelp destruction. Dept. of Biol.. Dalhousie Univ.. Halifax. NS B3H 4Jl. Canada. (ahm)

81:6653 Hudson. J.H., 1981. Growth rates in Montastraea

annu/ar/s:, a record of environmental change in Key Largo Coral Reef Marine Sanctuary, Florida. Bull. mar. Sci., 31(2):444-459.

Over the past 50 years, growth and survival of 144 massive coral heads were affected by water depth. turbidity and temperature, with offshore and near- shore corals showing greater environmental stress than midshore samples. Dredge and fill operations coincided with a growth decline at some reefs; a ban coincided with a slight resurgence on the same reefs. USGS, Fisher Island Station, Miami Beach. Fla. 33139. USA. (mwf)

81:6654 Ogawa, Yoshihiko and Tamio Nakahara, 1981. Daily

varintiom in the oeemreaK~ of p e h q ~ fishes and zooplankton within a coastal fbdhlng grmlad of the

Japan Sea. J. oceanogr. Soc. Japan, 36(6):275-285. Yamaguchi Prefectural Open-Sea Fisheries Experimental Station, Ootomari. Nagato-shi, 75941, Japan.

81:6655 Taylor. R.J.. 1981. Shoreline vegetation of the Arctic

A ~ coast. Arctic, 34(1):37,42. Dept. of Bi- ology, Western Wash. Univ., Bellingham, Wash~ 98225, USA.

E50, General biology, ecology, biogeo. graphy, etc.

81:6656 Duarte, W.E. and C.A. Moreno, 1981. The spe-

cialized diet of Hmlmt~er b/sp/n/m its effect on the diversity of A n ~ intertidal a m ~ . Hydrobiologia, 80(3):241-250.

Through a combination of stomach analyses of 11. bispinis, food availability studies and amphipod diversity data, it is suggested that this 'ambush- feeding, fish has a strong influence on the 'mobile epibenthic community' structure via selective preda- tion mainly on amphipods; Inst. de Ecol. y Evolu- cion, Univ. Austral de Chile, P.O. Box 567 Valdivia, Chile. (ahm)

81:6657 Guerinot. M.L. and D.G. Patriquin, 1981. The

association of N2-fixing bacteria with sea urchins. Mar. Biol.. 62(2/3):197-207.

Sea urchins may supplement their low-protein diet ot algae and seagrasses with combined-N from nitro- genase activity (C2H2 reduction). Normal gastroin- testinal flora of tropical, temperate, and arctic species fixed N at a rate 'inversely correlated with the N content of the sea urchin's food.' Dept. of Microbiology, Univ. of Maryland, College Park. Md. 20742. USA. (mwf)

81:6658 Hallock, P., 198t. Algal symbiosis: a mal~amflcal

analysis. Mar. Biol, 62(4):249-255.

Comparison of 'the simulated respiration and growth of mixotrophs with that of photoautotrophs and heterotrophs under the same conditions" showed that the host-symbiont system could have higher organic matter production by 2-3 orders of magnitude. The iterative model predicts circumstances favoring algal symbiosis. Earth Sci.. Univ. of Tex.. Odessa. Tex. 79762, USA. (mwf)

81:6659 Jacobs, R.P.W.M., C. den Hartog, B.F. Braster and

F.C. Carri~re, 1981. Grazing of the seagtass Zastera no/H/ by birds at TerschelU~ (D~Ch Wadden Sea). Aquat. Bot., 10(3):241-259.

An average of 710 birds grazing a 107-ha tidal flat preferred to feed on homogeneous beds of seagrass.