Results 121 to 130 of about 22,083 (149)
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Science, 1965
Four isomeric phytadienes have been isolated from mixed zooplankton of the Gulf of Maine. The chemical structures suggest that the mixture is derived by dehydration of phytol (presumably by acid catlysis), which is present in the diet of the zooplankton.
Max Blumer, David W. Thomas
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Four isomeric phytadienes have been isolated from mixed zooplankton of the Gulf of Maine. The chemical structures suggest that the mixture is derived by dehydration of phytol (presumably by acid catlysis), which is present in the diet of the zooplankton.
Max Blumer, David W. Thomas
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Identification of Zooplankton [PDF]
Nature, 1950 Conseil Permanent International pour I'Exploration de la Mer Fiches d'identification du zooplankton, Nos. 1–17. Publiees sous la direction de Dr. P. Jespersen et F. S. Russell. Pp. 74. (Copenhague: Andr. Fred. Host et fils, 1949.) 10 kr.
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PHOSPHORUS IN MARINE ZOOPLANKTON
Water Research, 1973Abstract In the euphotic zone, phosphorus compounds dissolved in sea water are utilized by growing plants, many of which are subsequently eaten by herbivorous zooplankton and the dietary phosphorus invested partly in growth and egg production, partly released in insoluble form as faecal pellets and partly metabolized.
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, 2000 Publisher Summary This chapter deals with improvements in mesozooplankton and macrozooplankton net sampling as well as other sampling techniques for describing the vertical and geographic distribution and biomass estimation of zooplankton. Traps to collect animals midwater or rising off the seafloor have been used less often to collect marine ...
L. Postel +6 more
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Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1975
Abstract 1. 1. Arctic zooplankton were characterized by large amounts of depot lipids, either triglycerides or wax esters. 2. 2. The copepods ( Calanus hyperboreus, Calanus glacialis, Metridia longa, Paraeuchaeta barbata and Paraeuchaeta glacialis ) had a very high content of storage lipid (37–54 per cent of the dry weight) which was ...
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Abstract 1. 1. Arctic zooplankton were characterized by large amounts of depot lipids, either triglycerides or wax esters. 2. 2. The copepods ( Calanus hyperboreus, Calanus glacialis, Metridia longa, Paraeuchaeta barbata and Paraeuchaeta glacialis ) had a very high content of storage lipid (37–54 per cent of the dry weight) which was ...
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2005
This chapter reviews metazooplankton (>200 μm) respiration in aquatic systems. It discusses methodology, modifying agents (physical, chemical, and biological factors), definitions, and carbon equivalents. The major determinants of zooplankton respiration rate are argued to be body mass and temperature.
Hernández-León, Santiago +1 more
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This chapter reviews metazooplankton (>200 μm) respiration in aquatic systems. It discusses methodology, modifying agents (physical, chemical, and biological factors), definitions, and carbon equivalents. The major determinants of zooplankton respiration rate are argued to be body mass and temperature.
Hernández-León, Santiago +1 more
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1981
The crustacean zooplankton of these large lochs is described from a series of vertical net hauls taken there during 1977–78. A total of 11 planktonic species of Crustacea was found — six of them common to all the lochs. There were sufficient differences in the occurrence of the other five species for it to be possible to identify the community of each ...
G. M. Dennis +2 more
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The crustacean zooplankton of these large lochs is described from a series of vertical net hauls taken there during 1977–78. A total of 11 planktonic species of Crustacea was found — six of them common to all the lochs. There were sufficient differences in the occurrence of the other five species for it to be possible to identify the community of each ...
G. M. Dennis +2 more
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Science Activities: Classroom Projects and Curriculum Ideas, 1987
(1987). Zooplankton in the Classroom. Science Activities: Vol. 24, Activities for Marine and Aquatic Education, pp. 6-9.
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(1987). Zooplankton in the Classroom. Science Activities: Vol. 24, Activities for Marine and Aquatic Education, pp. 6-9.
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Chesapeake Science, 1969
All metabolic rates of zooplankton are dependent on temperature. Rates generally rise in a linear fashion, with inflection points when plotted on a semi-log scale, and fall at higher temperatures. The upper limits of thermal tolerance for two species of copepods from Chesapeake Bay were found to be near the normal temperature of the habitat during the ...
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All metabolic rates of zooplankton are dependent on temperature. Rates generally rise in a linear fashion, with inflection points when plotted on a semi-log scale, and fall at higher temperatures. The upper limits of thermal tolerance for two species of copepods from Chesapeake Bay were found to be near the normal temperature of the habitat during the ...
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Comparisons of zooplankton time series
Journal of Marine Systems, 2010Evidence for climate-correlated low frequency variability of various components of marine ecosystems has accumulated rapidly over the past 2 decades. There has also been a growing recognition that society needs to learn how the fluctuations of these various components are linked, and to predict the likely amplitude and steepness of future changes ...
Mackas, D., Beaugrand, Gregory
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