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wastewater aquaculture system
246
E. Biological Oceanography
Paraphysomonas imperforata grazed on a wide assortment of phytoplankton as well as bacteria; it also resorted to cannibalism when food was in short supply. Nitrogen regeneration by the microflagellate never exceeded 50% of the nitrogen originally incorporated by the prey; the role of bacteria in regenerating nutrients was found to be minimal relative to mtcroflagellates. To achieve nutrient regeneration efficiencies in pelagic surface waters of 80-90% requires that the microbial food web be exceedingly complex and hierarchical; alternatively, nutrient regeneration efficiencies in surface waters may be lower than envisioned. WHOI, Woods Hole, MA 02543, USA. 86:1706 McConville, M.J., C. Mitchell and R. Wetherbee, 1985. Patterns of carbon assimilation in a microalgal community from annual sea ice, East Antarctica. Polar Biol., 4(3): 135-141. Under-ice measurements of C-14 assimilation (1.5832.92 mg C/m2/h) and of C-14 bicarbonate partitioning into subcellular compartments were made following the 1982 ice bloom peak, and extraction efficiencies were determined. The predominance of assimilation into (1-~3)-glucan and the decreasing protein/carbohydrate ratios observed led to the suggestion that a nutrient-depleted condition exists during bloom decline, resulting in rapid sinking of algae out of the water column upon melting. Consequently, these cells may be more important as a nutrient source for zooplankton than as a seed source for the pelagic community. Plant Cell Biol. Res. Centre, Sch. of Botany, Univ. of Melbourne, Parkville, Victoria 3052, Australia. (gsb) 86:1707 Podelleck, Rainer, 1985. Contribution to the knowledge of the algal flora of the Darss and Zingst chain of shallow inlets [S. Baltic]. Arch. Protistenk., 130(1-2): 103-112. (In German, English abstract.) Sektion Biol. der Wilhelm-Pieck, Univ. Rostock, DRG. 86:1708 Sager, Gtlnther, 1985. [Growth of cell numbers in marine algae cultures.] Beitr. Meeresk., 52:57-63. (In German, English abstract.) Akad. der Wissenschaften, Inst. fur Meeresk., DDR-2530 Rostock-Warnemunde, Seestr. 15, DRG. 86:1709 Tolomio, C. and F. Cavolo, 1985. Description of Prorocenmml vemetm~ sp.nov. (Dinophyceae)
OLR (1986) 33 (3)
found in the Venice Lagoon. Botanica mar~ 28(8):345-349. (In French, English abstract.) Dipt. di Biol., Univ. degli Studi di Padova, Via Orto Botanico 15, 1-35123 Padova, Italy.
86:1710 Yamamoto, Hiroyuki and Yoshio Ezura, 1985. Distribution and ecology of bacterlvomns flagellates in the marine ecosystem. Mer, Tokyo, 23(2):81-88. (In Japanese, English abstract.)
Distribution was affected by a quantity of prey bacteria, and thresholds for growth response or continuance of flagellates were found at 102-103/mL as total viable bacteria by plate counting. The thresholds coincided with the result of mixed culture with an isolated flagellate and the prey bacterium (Alteromonas sp.) in autoclaved natural seawater. The role of bacterivorous flagellates in the marine ecosystem seems to be as the control agent for bacterial population and the facilitator in decomposition of organic materials through the food web. Lab. of Microbiol., Hokkaido Univ., Hokkaido, Japan.
E300. Effects of pollution (also uptake, trace accumulations, etc.; see also B350Atmospheric pollution, C210-Chemical pollution, F250-Waste disposal) 86:1711 Bacher, G.J., 1985. Mercury concentrations in the Australian fur seal Arctocep/m/ns pm//h~ from SE Australian waters. Bull. environ. Contamin. Toxicol., 35(4):490-495. Arthur Rylah Inst. for Environ. Res., Fish. and Wildlife Serv., P.O. Box 137, Heidelberg, Vict. 3084, Australia. 86:1712 de Lacerda, L.D., V.L. Teixeira and J.R.D. Guimaraes, 1985. Seasonal variation of heavy metals in seaweeds from Concehiio de Jacare| (R.J.), Brazil. Botanica mar, 28(8):339-343. Inst. de Qnimica, Univ. Fed. Fluminense, Morro do Valonguinho s.no., Niteroi, 24.210, RJ. Brazil.
86:1713 Friligos, N., 1985. Impact on phytop!Ankton populations of sewage dischurges in tbe Samnlkes Gulf (west Aegean). Wat. Res., 19(9):1107-1118. Inst.
E. Biological Oceanography
Paraphysomonas imperforata grazed on a wide assortment of phytoplankton as well as bacteria; it also resorted to cannibalism when food was in short supply. Nitrogen regeneration by the microflagellate never exceeded 50% of the nitrogen originally incorporated by the prey; the role of bacteria in regenerating nutrients was found to be minimal relative to mtcroflagellates. To achieve nutrient regeneration efficiencies in pelagic surface waters of 80-90% requires that the microbial food web be exceedingly complex and hierarchical; alternatively, nutrient regeneration efficiencies in surface waters may be lower than envisioned. WHOI, Woods Hole, MA 02543, USA. 86:1706 McConville, M.J., C. Mitchell and R. Wetherbee, 1985. Patterns of carbon assimilation in a microalgal community from annual sea ice, East Antarctica. Polar Biol., 4(3): 135-141. Under-ice measurements of C-14 assimilation (1.5832.92 mg C/m2/h) and of C-14 bicarbonate partitioning into subcellular compartments were made following the 1982 ice bloom peak, and extraction efficiencies were determined. The predominance of assimilation into (1-~3)-glucan and the decreasing protein/carbohydrate ratios observed led to the suggestion that a nutrient-depleted condition exists during bloom decline, resulting in rapid sinking of algae out of the water column upon melting. Consequently, these cells may be more important as a nutrient source for zooplankton than as a seed source for the pelagic community. Plant Cell Biol. Res. Centre, Sch. of Botany, Univ. of Melbourne, Parkville, Victoria 3052, Australia. (gsb) 86:1707 Podelleck, Rainer, 1985. Contribution to the knowledge of the algal flora of the Darss and Zingst chain of shallow inlets [S. Baltic]. Arch. Protistenk., 130(1-2): 103-112. (In German, English abstract.) Sektion Biol. der Wilhelm-Pieck, Univ. Rostock, DRG. 86:1708 Sager, Gtlnther, 1985. [Growth of cell numbers in marine algae cultures.] Beitr. Meeresk., 52:57-63. (In German, English abstract.) Akad. der Wissenschaften, Inst. fur Meeresk., DDR-2530 Rostock-Warnemunde, Seestr. 15, DRG. 86:1709 Tolomio, C. and F. Cavolo, 1985. Description of Prorocenmml vemetm~ sp.nov. (Dinophyceae)
OLR (1986) 33 (3)
found in the Venice Lagoon. Botanica mar~ 28(8):345-349. (In French, English abstract.) Dipt. di Biol., Univ. degli Studi di Padova, Via Orto Botanico 15, 1-35123 Padova, Italy.
86:1710 Yamamoto, Hiroyuki and Yoshio Ezura, 1985. Distribution and ecology of bacterlvomns flagellates in the marine ecosystem. Mer, Tokyo, 23(2):81-88. (In Japanese, English abstract.)
Distribution was affected by a quantity of prey bacteria, and thresholds for growth response or continuance of flagellates were found at 102-103/mL as total viable bacteria by plate counting. The thresholds coincided with the result of mixed culture with an isolated flagellate and the prey bacterium (Alteromonas sp.) in autoclaved natural seawater. The role of bacterivorous flagellates in the marine ecosystem seems to be as the control agent for bacterial population and the facilitator in decomposition of organic materials through the food web. Lab. of Microbiol., Hokkaido Univ., Hokkaido, Japan.
E300. Effects of pollution (also uptake, trace accumulations, etc.; see also B350Atmospheric pollution, C210-Chemical pollution, F250-Waste disposal) 86:1711 Bacher, G.J., 1985. Mercury concentrations in the Australian fur seal Arctocep/m/ns pm//h~ from SE Australian waters. Bull. environ. Contamin. Toxicol., 35(4):490-495. Arthur Rylah Inst. for Environ. Res., Fish. and Wildlife Serv., P.O. Box 137, Heidelberg, Vict. 3084, Australia. 86:1712 de Lacerda, L.D., V.L. Teixeira and J.R.D. Guimaraes, 1985. Seasonal variation of heavy metals in seaweeds from Concehiio de Jacare| (R.J.), Brazil. Botanica mar, 28(8):339-343. Inst. de Qnimica, Univ. Fed. Fluminense, Morro do Valonguinho s.no., Niteroi, 24.210, RJ. Brazil.
86:1713 Friligos, N., 1985. Impact on phytop!Ankton populations of sewage dischurges in tbe Samnlkes Gulf (west Aegean). Wat. Res., 19(9):1107-1118. Inst.