Chemical composition and alkaline phosphatase activity of nutrient-saturated and P-deficient cells...
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OLR (1984) 31 (12) E. Biological Oceanography 895 A. purpuriferum has tetrasporangia formation which is influenced by daylength, suggesting a relationship between the daylength perception mechanism and photosynthesis. Analyses of photosynthetic pigments showed there was little variation over a range of daylength conditions (4-12 h) and irradiance levels (photon flux densities 2.5-80 panol/m 2 s J). However, both irradiance and daylength history influence the shape of the photosynthesis-irradiance curve. 'The role of photosynthesis in the irradiance-dependency of the short day response in tetrasporogenesis was evaluated.' Dept. of Mar. Biol., Rijksuniversiteit Groningen, Kerklaan 30, Postbus 14, 9750 AA Haren (Gr.), Netherlands. (jst) 84:6269 Lancelot, Christiane, 1984. Metabolic changes in PImeoeystis poucheti (Harlot) Lagerheim during the spring bloom in Belgian coastal waters. Estuar. coast. Shelf Sci., 18(5):593-600. Intracellular protein synthesis contributed 20-42% of the total intracellular ~4C fixed and was positively correlated with ambient inorganic N. Decreased protein synthesis following N depletion was bal- anced by increased intracellular polysaccharide synthesis (22-42% of the intracellular J4C fixed) and by increased extracellular release of HMW material 08-60% of total 14C fixed) which formed a mucous envelope. Lipid synthesis was not correlated with ambient inorganic N, and was about 20% of the intracellular ]4C fixed. Lab. d'Oceanogr., Univ. Libre de Bruxelles, Ave. F.D. Roosevelt, 50, B-1050 Bruxelles, Belgium. E270. Microphytes (coccolithophores, dia- toms, flagellates, etc.) 84:6270 Sakshaug, Egll, Edna Gran61i, Malte Elbrachter and Hermann Kayser, 1984. Chemical composition and alkaline phosphatase activity of nutrient- saturated and P-deficient cells of four marine dinoflageHates. J. expl mar. Biol. Ecol., 77(3): 241-254. Trondhjem Biol. Sta., Univ. of Trond- heim, Norway. E300. Effects of pollution (also uptake, trace accumulations, etc.; see also B350- Atmospheric poUution, C210-Chemical pol- lution, F250-Waste disposal) 84:6271 Abdul-Hassan, J.K., 1984. Effect of hydroearhons on crustacean animals. In: Fate and fluxes of oil pollutants in the KAP region. Symposium, Marine Science Center, Basrah, Iraq. DouAbul, A.A.Z., organizer; in press. The responses of the marine crustaceans (Carcinus maenas, Crangon vulgaris, and Palaemon serratus) to 96 h exposure to 5 concentrations of benzene, hexane and crude oil were examined. Benzene was the most toxic. Female crabs were more resistant than males and were more sensitive than C. vulgaris. Mar. Sci. Centre, Univ. of Basrah, Iraq. 84:6272 Chaisemartin, Claude, 1983. Comportment of lead salts in a biological linear pattern: alga-mollusc, (Ancylus--Pulmonata). Vie Milieu, 33(1):49-54. (In French, English abstract.) Bioaccumulation of lead in a benthic algae.-Ancylus food chain was investigated in the laboratory. Size or age of the snails affected their lead uptake; lead levels were highest in 'oligo-calcic water popula- tions.' Efficiency of lead assimilation was affected by the rate of food ingestion. Lab. de Biol. Exper. Hydrobiol., U.E.R. des Sci. 87060 Limoges, Equipe Parasitose et Milieu du CNRS 040 138, France. 84:6273 Dodge, R.E., T.D. Jickells, A.H. Knap, S. Boyd and R.P.M. Bak, 1984. Reel-building coral skeletons as chemical pollution (phosphorus) indicators. Mar. Pollut. Bull., 15(5):178-187. The inorganic and total phosphorus concentrations of coral skeletons from Bermuda, St. Croix and Curacao indicate that a record of seawater phos- phorus is preserved which, in certain cases, is consistent with the location and time history of sewage and other phosphorus pollution episodes. Nova Univ. Oceanogr. Center, 8000 N. Ocean Dr., Dania, Fla. 33004-3078, USA. 84:6274 Ellis, D.V., 1984. Editorial. Animal behaviour and pollution. Mar. Pollut. Bull., 15(5):163-164. A 'check-list' of behaviors is suggested which indicates species susceptibility to pollution. The 6 questions asked concern formation of 'stationary mass assemblages,' narrow front migrations, in- flexible behaviors, unknown or missing life-cycle stages, species niche, and other anthropogenic stresses. Such a check-list could help guide the investigations of pollution assessment teams. Ohm) 84:6275 Fanuko, Neda, 1984. The influence of experimental sewage pollution on lagoon phytoplankton. Mar. Pollut. Bull., 15(5):195-198. Mar. Res. and
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Transcript of Chemical composition and alkaline phosphatase activity of nutrient-saturated and P-deficient cells...
OLR (1984) 31 (12) E. Biological Oceanography 895
A. purpuriferum has tetrasporangia formation which is influenced by daylength, suggesting a relationship between the daylength perception mechanism and photosynthesis. Analyses of photosynthetic pigments showed there was little variation over a range of daylength conditions (4-12 h) and irradiance levels (photon flux densities 2.5-80 panol/m 2 s J). However, both irradiance and daylength history influence the shape of the photosynthesis-irradiance curve. 'The role of photosynthesis in the irradiance-dependency of the short day response in tetrasporogenesis was evaluated.' Dept. of Mar. Biol., Rijksuniversiteit Groningen, Kerklaan 30, Postbus 14, 9750 AA Haren (Gr.), Netherlands. (jst)
84:6269 Lancelot, Christiane, 1984. Metabolic changes in
PImeoeystis poucheti (Harlot) Lagerheim during the spring bloom in Belgian coastal waters. Estuar. coast. Shelf Sci., 18(5):593-600.
Intracellular protein synthesis contributed 20-42% of the total intracellular ~4C fixed and was positively correlated with ambient inorganic N. Decreased protein synthesis following N depletion was bal- anced by increased intracellular polysaccharide synthesis (22-42% of the intracellular J4C fixed) and by increased extracellular release of HMW material 08-60% of total 14C fixed) which formed a mucous envelope. Lipid synthesis was not correlated with ambient inorganic N, and was about 20% of the intracellular ]4C fixed. Lab. d'Oceanogr., Univ. Libre de Bruxelles, Ave. F.D. Roosevelt, 50, B-1050 Bruxelles, Belgium.
E270. Microphytes (coccolithophores, dia- toms, flagellates, etc.)
84:6270 Sakshaug, Egll, Edna Gran61i, Malte Elbrachter and
Hermann Kayser, 1984. Chemical composition and alkaline phosphatase activity of nutrient- saturated and P-deficient cells of four marine dinoflageHates. J. expl mar. Biol. Ecol., 77(3): 241-254. Trondhjem Biol. Sta., Univ. of Trond- heim, Norway.
E300. Effects of pollution (also uptake, trace accumulations, etc.; see also B350- Atmospheric poUution, C210-Chemical pol- lution, F250-Waste disposal)
84:6271 Abdul-Hassan, J.K., 1984. Effect of hydroearhons on
crustacean animals. In: Fate and fluxes of oil
pollutants in the KAP region. Symposium, Marine Science Center, Basrah, Iraq. DouAbul, A.A.Z., organizer; in press.
The responses of the marine crustaceans (Carcinus maenas, Crangon vulgaris, and Palaemon serratus) to 96 h exposure to 5 concentrations of benzene, hexane and crude oil were examined. Benzene was the most toxic. Female crabs were more resistant than males and were more sensitive than C. vulgaris. Mar. Sci. Centre, Univ. of Basrah, Iraq.
84:6272 Chaisemartin, Claude, 1983. Comportment of lead
salts in a biological linear pattern: alga-mollusc, (Ancylus--Pulmonata). Vie Milieu, 33(1):49-54. (In French, English abstract.)
Bioaccumulation of lead in a benthic algae.-Ancylus food chain was investigated in the laboratory. Size or age of the snails affected their lead uptake; lead levels were highest in 'oligo-calcic water popula- tions.' Efficiency of lead assimilation was affected by the rate of food ingestion. Lab. de Biol. Exper. Hydrobiol., U.E.R. des Sci. 87060 Limoges, Equipe Parasitose et Milieu du CNRS 040 138, France.
84:6273 Dodge, R.E., T.D. Jickells, A.H. Knap, S. Boyd and
R.P.M. Bak, 1984. Reel-building coral skeletons as chemical pollution (phosphorus) indicators. Mar. Pollut. Bull., 15(5):178-187.
The inorganic and total phosphorus concentrations of coral skeletons from Bermuda, St. Croix and Curacao indicate that a record of seawater phos- phorus is preserved which, in certain cases, is consistent with the location and time history of sewage and other phosphorus pollution episodes. Nova Univ. Oceanogr. Center, 8000 N. Ocean Dr., Dania, Fla. 33004-3078, USA.
84:6274 Ellis, D.V., 1984. Editorial. Animal behaviour and
pollution. Mar. Pollut. Bull., 15(5):163-164.
A 'check-list' of behaviors is suggested which indicates species susceptibility to pollution. The 6 questions asked concern formation of 'stationary mass assemblages,' narrow front migrations, in- flexible behaviors, unknown or missing life-cycle stages, species niche, and other anthropogenic stresses. Such a check-list could help guide the investigations of pollution assessment teams. Ohm)
84:6275 Fanuko, Neda, 1984. The influence of experimental
sewage pollution on lagoon phytoplankton. Mar. Pollut. Bull., 15(5):195-198. Mar. Res. and
