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Hydrography and the distribution of phytoplankton in Killary Harbour: a fjord in western Ireland
O LR (1987) 34 (12)
E. Biological Oceanography
1985. II. Phytoplankton pigment composition studied by HPLC analysis. Mar. Ecol.-Prog. Ser., 37(2-3):265-275. Station Biol., F-29211 Roscoff, France. 87:6966 Lancelot, C. and S. Mathot, 1987. Dynamics of a PlmeocystJs-dominated spring bloom in Belgian coastal waters. I. Phytoplanktonic activities and related parameters. Mar. Ecol.-Prog. Ser., 37(23):239-248. Photosynthesis, growth rates by colonial Phaeocystis pouchetii cells, mucus secretion, and excretion from colonies were measured during spring 1984 in P. pouchetii dominated waters. Photosynthetic properties were independent of environmental changes with maximal rates 0.09 and 0.16 h ~ for cells and mucus respectively. Cellular specific growth rate was inversely correlated to ambient inorganic N levels. Extreme values for cell turnover rates were 0.12 and 0.38 d ~. The colonies photoassimilated 94 g C m -~ mo t; from this a maximum of 84 g C m 2 mo ~ was excreted. Groupe de Microbiol. des Milieux Aquatiques, Univ. Libre de Bruxelles, ave. F.D. Roosevelt 50, B-1050 Brussels, Belgium. 87:6967 Magazzu, Giuseppe, Vivia Bruni, Augusto Piccione, Trevor Platt, Brian Irwin and D.V.S. Rao, 1987. Picoplankton: contribution to phytoplankton production in the Strait of Messina. Mar. Ecol. (P.S.Z.N. I), 8(1):21-31. Dipart. di Biol. animale ed Ecol. mar., Univ. Messina, Via Dei Verdi, 75, 1-98100 Messina, Italy. 87:6968 McClatchie, S., 1987. Experimental test of an allometric method for estimating potential copopod production. Mar. Biol., 94(4):597-603. Phytoplankton and zooplankton, collected at the deepest point of Bedford Basin, Canada, were used in a 2 mo experiment in the Dalhousie tower tank to test the validity of estimating potential copepod production from allometric equations based on body size and temperature under food-saturated conditions ('maximum instantaneous growth, MIG' method). Predicted instantaneous rates of potential production were compared with average production of a mixed copepod assemblage measured over weekly intervals in the absence of predators. Predictions exceeded measured production by 1.9 to 136 times, but generally agreed within an order of magnitude. The MIG method appears to be most useful for mesoscale surveys or neritie regions where the aim is to quickly obtain an order of magnitude
1065
estimate of secondary production. Portobello Mar. Lab., P.O. Box 8, Portobello, Otago, New Zealand.
87:6969 Pennock, J.R., 1987. Temporal and spotlal variability in phytol~mnkton ammonium and nitrate uptake in the Delaware Estuary. Estuar. coast. Shelf Sci., 24(6):841-857. Coll. of Mar. Studies, Univ. of Delaware, Lewes, DE 19958, USA.
87:6970 Peterson, D.H., M.J. Perry, K.E. Bencala and M.C. Talbot, 1987. Phytoplankton productivity in relation to light intensity: a simple equation. Estuar. coast. Shelf Sci., 24(6):813-832. A simple exponential equation is used to describe photosynthetic rate as a function of light intensity for a variety of unicellular algae and higher plants where photosynthesis is proportional to (l-e-~r). The parameter [3(=I~ -~) is derived by a simultaneous curve-fitting method, where I is incident quantumflux density. The exponential equation is tested against a wide range of data and is found to adequately describe P vs I curves. USGS, 345 Middlefield Rd., Menlo Park, CA 94025, USA. 87:6971 Roden, C.M., P.G. Rodhouse, M.P. Hensey, T. McMahon, T.H. Ryan and J.P. Mercer, 1987. Hydrography and the distribution of phytoplankton in KIHary Harbuur: a fiord in western Ireland. J. mar. biol. Ass. U.K., 67(2):359-371. Zool. Dept., Univ. Coll. Galway, Carna, Co. Galway, Ireland. 87:6972 Uye, S.-I., Hiroshi Kuwata and Takuo Endo, 1987.
Standing stocks and production rates of phytoplankton and planktonic copopods in the Inland Sea of Japan. J. oceanogr. Soc. Japan, 42(6):421434. The overall mean of phytoplankton biomass was relatively constant during the study period, ranging from 2.3 nag chl a m -3 in April to 3.6 mg chl a m -3 in October-November. Primary production was low in January but higher than 375 mg C m -2 d -t on the other occasions. Integrated annual primary production was 122 g C m -2 y r ~. In terms of carbon weight, Paracalanus parvus was the most important copepod species. Copepod production was low in cold seasons and increased, following the elevation of primary production, to 4.9 mg C m -3 d ~ in June. Annual copepod production was 33.7 g C m -2 y r ~, of which herbivore production was 26.4 g C m 2 yr ~. Faculty of Appl. Biol. Sci., Hiroshima Univ., Fukuyama 720, Japan.
E. Biological Oceanography
1985. II. Phytoplankton pigment composition studied by HPLC analysis. Mar. Ecol.-Prog. Ser., 37(2-3):265-275. Station Biol., F-29211 Roscoff, France. 87:6966 Lancelot, C. and S. Mathot, 1987. Dynamics of a PlmeocystJs-dominated spring bloom in Belgian coastal waters. I. Phytoplanktonic activities and related parameters. Mar. Ecol.-Prog. Ser., 37(23):239-248. Photosynthesis, growth rates by colonial Phaeocystis pouchetii cells, mucus secretion, and excretion from colonies were measured during spring 1984 in P. pouchetii dominated waters. Photosynthetic properties were independent of environmental changes with maximal rates 0.09 and 0.16 h ~ for cells and mucus respectively. Cellular specific growth rate was inversely correlated to ambient inorganic N levels. Extreme values for cell turnover rates were 0.12 and 0.38 d ~. The colonies photoassimilated 94 g C m -~ mo t; from this a maximum of 84 g C m 2 mo ~ was excreted. Groupe de Microbiol. des Milieux Aquatiques, Univ. Libre de Bruxelles, ave. F.D. Roosevelt 50, B-1050 Brussels, Belgium. 87:6967 Magazzu, Giuseppe, Vivia Bruni, Augusto Piccione, Trevor Platt, Brian Irwin and D.V.S. Rao, 1987. Picoplankton: contribution to phytoplankton production in the Strait of Messina. Mar. Ecol. (P.S.Z.N. I), 8(1):21-31. Dipart. di Biol. animale ed Ecol. mar., Univ. Messina, Via Dei Verdi, 75, 1-98100 Messina, Italy. 87:6968 McClatchie, S., 1987. Experimental test of an allometric method for estimating potential copopod production. Mar. Biol., 94(4):597-603. Phytoplankton and zooplankton, collected at the deepest point of Bedford Basin, Canada, were used in a 2 mo experiment in the Dalhousie tower tank to test the validity of estimating potential copepod production from allometric equations based on body size and temperature under food-saturated conditions ('maximum instantaneous growth, MIG' method). Predicted instantaneous rates of potential production were compared with average production of a mixed copepod assemblage measured over weekly intervals in the absence of predators. Predictions exceeded measured production by 1.9 to 136 times, but generally agreed within an order of magnitude. The MIG method appears to be most useful for mesoscale surveys or neritie regions where the aim is to quickly obtain an order of magnitude
1065
estimate of secondary production. Portobello Mar. Lab., P.O. Box 8, Portobello, Otago, New Zealand.
87:6969 Pennock, J.R., 1987. Temporal and spotlal variability in phytol~mnkton ammonium and nitrate uptake in the Delaware Estuary. Estuar. coast. Shelf Sci., 24(6):841-857. Coll. of Mar. Studies, Univ. of Delaware, Lewes, DE 19958, USA.
87:6970 Peterson, D.H., M.J. Perry, K.E. Bencala and M.C. Talbot, 1987. Phytoplankton productivity in relation to light intensity: a simple equation. Estuar. coast. Shelf Sci., 24(6):813-832. A simple exponential equation is used to describe photosynthetic rate as a function of light intensity for a variety of unicellular algae and higher plants where photosynthesis is proportional to (l-e-~r). The parameter [3(=I~ -~) is derived by a simultaneous curve-fitting method, where I is incident quantumflux density. The exponential equation is tested against a wide range of data and is found to adequately describe P vs I curves. USGS, 345 Middlefield Rd., Menlo Park, CA 94025, USA. 87:6971 Roden, C.M., P.G. Rodhouse, M.P. Hensey, T. McMahon, T.H. Ryan and J.P. Mercer, 1987. Hydrography and the distribution of phytoplankton in KIHary Harbuur: a fiord in western Ireland. J. mar. biol. Ass. U.K., 67(2):359-371. Zool. Dept., Univ. Coll. Galway, Carna, Co. Galway, Ireland. 87:6972 Uye, S.-I., Hiroshi Kuwata and Takuo Endo, 1987.
Standing stocks and production rates of phytoplankton and planktonic copopods in the Inland Sea of Japan. J. oceanogr. Soc. Japan, 42(6):421434. The overall mean of phytoplankton biomass was relatively constant during the study period, ranging from 2.3 nag chl a m -3 in April to 3.6 mg chl a m -3 in October-November. Primary production was low in January but higher than 375 mg C m -2 d -t on the other occasions. Integrated annual primary production was 122 g C m -2 y r ~. In terms of carbon weight, Paracalanus parvus was the most important copepod species. Copepod production was low in cold seasons and increased, following the elevation of primary production, to 4.9 mg C m -3 d ~ in June. Annual copepod production was 33.7 g C m -2 y r ~, of which herbivore production was 26.4 g C m 2 yr ~. Faculty of Appl. Biol. Sci., Hiroshima Univ., Fukuyama 720, Japan.