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Ostracoda: new aspects of their biogeography
OLR (1987)34 (12)
E. BiologicalOceanography
87:6953 Hughes, T.P. and J.H. Connell, 1987. Population dynamics based on size or age? A reef-coral analysis. Am. Naturalist, 129(6):818-829.
Size and age are generally considered as alternative parameters for analyzing the demographics of a population, depending upon the development and life history strategy of the organism. Results of this eight-year study of three coral taxa indicate that although size effects dominate (as would be expected for a clonal organism), age was also an important determinant of growth rate in two out of three taxa. Size-independent age effects were also observed. Dept. of Biol. Sci., Univ. of Calif., Santa Barbara, CA 93106, USA. (gsb) 87:6954 Kratz, T.K., T.M. Frost and J.J. Magnuson, 1987. Inferences from spatial and temporal variability in ecosystems. Long-term zooplankton data from lakes. Am. Naturalist, 129(6):830-846.
The variability in zooplankton parameters (maximum abundance and time and depth of the maximum for each of eight common taxas) was analyzed using unpublished data from a long-term study of five lakes within the same geographic area. The analysis allowed classification of each parameter as either site- or year-specific. Year-to-year variability was greatest for the abundance parameter and smallest for depth distribution. Center for Limnol., Univ. of Wisconsin, Madison, WI 53706, USA. (gsb)
1063
as sources and the importance of changes in sea level and climate are considered, along with the possibility that vicariant events (such as extinctions) may have contributed to observed patterns. Scripps Inst. of Oceanogr., La Jolla, CA 92093, USA. (gsb)
E~. P l a n k t o n (also primary productivity, seston and detritus) g7:6957 Andersen, Val6rie, Paul Nival and R.P. Harris, 1987. Modemng of a planktonic ecosystem in an enclosed water eob,mn. Y. mar. biol. Ass. U.K., 67(2):407-430. A model is described, based on the CEPEX project, carried out in Saanich Inlet, British Columbia. An initial model in which the phytoplankton and herbivores are considered as single compartments does not adequately represent the development of the plankton populations within the enclosure. It is necessary to consider separate categories of phytoplankton, nutrients and herbivores. The second model includes diatom and flagellate compartments, as well as dissolved inorganic nitrogen and silicate, copepods and appendicularians. This model reproduces the general evolution of the variables in the enclosure, but suggests a further subdivision of the system is necessary, for example by classes of flagellates. Station Zool., CEROV, La Darse, B.P. 28, 06230 Villefranche-sur-Mer, France.
87:6955 McKenzie, K.G., 1986. Ostracoda: new aspects of their biogeography. Crustacean Issues, 4:257-278.
87:6958 Billen, G. and A. Fontigny, 1987. Dynamics of a
This review of recent ostracod biogeographical research includes data on carbonate equilibrium, oxygen, osmoregulation, nutrients, trace elements, and solutes as well as salinity, temperature, depth, and substrate. A mosaic evolutionary pattern is suggested by genetic studies, and the impact of human activities on dispersal is discussed. Riverina Coll. of Advanced Education, Wagga Wagga, NSW, Australia. (gsb)
coastal waters. II. Bacterioplankton dynamics. Mar. Ecol.-Prog. Ser, 37(2-3):249-257.
87:6956 Newman, W.A., 1986. Origin of the Hawaiian marine fauna. Dispersal and vicariance as indicated by barnacles and other organisms. Crustacean Issues, 4:21-50.
Evidence from shore fauna (barnacles, hermatypic corals, and others) of the Hawaiian Islands suggests attenuation of lndo-West Pacific fauna as the origin of this biota, with dispersal as the primary underlying mechanism. The roles of high and low islands
P'll~ocy~-dominmted ~
bloom ill ]~1111
Measurements of dissolved organic matter, bacterial biomass, exoproteolytic activity, uptake of direct substrates, bacterial production and mortality were made in the Belgian coastal zone during the wax and wane of the 1984 spring pbytoplankton bloom. These data offer an accurate description of bacterioplankton response to phytoplankton development. An HSB model, taking into account the basic processes involved in bacterial utilization of organic matter, provides good simulation of observed variations of bacterial biomass and activity. Groupe de Microbiol. des Milieux Aquatiques, Univ. Libre de Bruxelles, ave. F.-D. Roosevelt 50, B-1050 Brussels, Belgium. 87:69439 CampbeU, E.E. and G.C. Bate, 1987. Factors influendug the magnitude of phytolRonktoa primary
E. BiologicalOceanography
87:6953 Hughes, T.P. and J.H. Connell, 1987. Population dynamics based on size or age? A reef-coral analysis. Am. Naturalist, 129(6):818-829.
Size and age are generally considered as alternative parameters for analyzing the demographics of a population, depending upon the development and life history strategy of the organism. Results of this eight-year study of three coral taxa indicate that although size effects dominate (as would be expected for a clonal organism), age was also an important determinant of growth rate in two out of three taxa. Size-independent age effects were also observed. Dept. of Biol. Sci., Univ. of Calif., Santa Barbara, CA 93106, USA. (gsb) 87:6954 Kratz, T.K., T.M. Frost and J.J. Magnuson, 1987. Inferences from spatial and temporal variability in ecosystems. Long-term zooplankton data from lakes. Am. Naturalist, 129(6):830-846.
The variability in zooplankton parameters (maximum abundance and time and depth of the maximum for each of eight common taxas) was analyzed using unpublished data from a long-term study of five lakes within the same geographic area. The analysis allowed classification of each parameter as either site- or year-specific. Year-to-year variability was greatest for the abundance parameter and smallest for depth distribution. Center for Limnol., Univ. of Wisconsin, Madison, WI 53706, USA. (gsb)
1063
as sources and the importance of changes in sea level and climate are considered, along with the possibility that vicariant events (such as extinctions) may have contributed to observed patterns. Scripps Inst. of Oceanogr., La Jolla, CA 92093, USA. (gsb)
E~. P l a n k t o n (also primary productivity, seston and detritus) g7:6957 Andersen, Val6rie, Paul Nival and R.P. Harris, 1987. Modemng of a planktonic ecosystem in an enclosed water eob,mn. Y. mar. biol. Ass. U.K., 67(2):407-430. A model is described, based on the CEPEX project, carried out in Saanich Inlet, British Columbia. An initial model in which the phytoplankton and herbivores are considered as single compartments does not adequately represent the development of the plankton populations within the enclosure. It is necessary to consider separate categories of phytoplankton, nutrients and herbivores. The second model includes diatom and flagellate compartments, as well as dissolved inorganic nitrogen and silicate, copepods and appendicularians. This model reproduces the general evolution of the variables in the enclosure, but suggests a further subdivision of the system is necessary, for example by classes of flagellates. Station Zool., CEROV, La Darse, B.P. 28, 06230 Villefranche-sur-Mer, France.
87:6955 McKenzie, K.G., 1986. Ostracoda: new aspects of their biogeography. Crustacean Issues, 4:257-278.
87:6958 Billen, G. and A. Fontigny, 1987. Dynamics of a
This review of recent ostracod biogeographical research includes data on carbonate equilibrium, oxygen, osmoregulation, nutrients, trace elements, and solutes as well as salinity, temperature, depth, and substrate. A mosaic evolutionary pattern is suggested by genetic studies, and the impact of human activities on dispersal is discussed. Riverina Coll. of Advanced Education, Wagga Wagga, NSW, Australia. (gsb)
coastal waters. II. Bacterioplankton dynamics. Mar. Ecol.-Prog. Ser, 37(2-3):249-257.
87:6956 Newman, W.A., 1986. Origin of the Hawaiian marine fauna. Dispersal and vicariance as indicated by barnacles and other organisms. Crustacean Issues, 4:21-50.
Evidence from shore fauna (barnacles, hermatypic corals, and others) of the Hawaiian Islands suggests attenuation of lndo-West Pacific fauna as the origin of this biota, with dispersal as the primary underlying mechanism. The roles of high and low islands
P'll~ocy~-dominmted ~
bloom ill ]~1111
Measurements of dissolved organic matter, bacterial biomass, exoproteolytic activity, uptake of direct substrates, bacterial production and mortality were made in the Belgian coastal zone during the wax and wane of the 1984 spring pbytoplankton bloom. These data offer an accurate description of bacterioplankton response to phytoplankton development. An HSB model, taking into account the basic processes involved in bacterial utilization of organic matter, provides good simulation of observed variations of bacterial biomass and activity. Groupe de Microbiol. des Milieux Aquatiques, Univ. Libre de Bruxelles, ave. F.-D. Roosevelt 50, B-1050 Brussels, Belgium. 87:69439 CampbeU, E.E. and G.C. Bate, 1987. Factors influendug the magnitude of phytolRonktoa primary