caa a22 4500 465763804 CHVBK 20180323111907.0 cr unu---uuuuu 170327e19900501xx s 000 0 eng 10.1007/BF00237821 doi (NATIONALLICENCE)springer-10.1007/BF00237821 Barthel Klaus-Günther Institut für Meereskunde, Düsternbrooker Weg 20, D-2300, Kiel 1, Germany aut Relationships of food uptake and body components of Calanus finmarchicus , C. glacialis and C. hyperboreus to particulate matter and water characteristics in Fram Strait [Elektronische Daten] [Klaus-Günther Barthel] Summary: During MIZEX'83 and MIZEX'84 food composition and food uptake by three Calanus species were investigated in the northern Greenland Sea. Samples were obtained from open water, the marginal ice zone, the pack ice region and the East Greenland shelf polynya. Food uptake of Calanus spp. was determined in ship-board incubation experiments under in situ conditions and volume of particulate matter in the upper 300 m of the water column was measured. Principal components analysis was used for data evaluation. Under the pack ice strongly reduced amounts of particulate matter in the euphotic zone were found while concentrations were elevated in the marginal ice zone and the East Greenland shelf polynya. Food uptake of C. finmarchicus was correlated to food concentration. In the pack ice region ingestion was close to zero for all species investigated. Likewise body weights were significantly lower than in MIZ or polynya. Principal components analysis of physical data shows a clustering of MIZ station groups at high temperature and salinity, clearly separated from pack ice and polynya stations. Analysis of biological data results in the same grouping of stations demonstrating a strong influence of hydrographic conditions on plankton development. It is concluded that herbivorous copepods cannot sustain themselves in the pack ice region but only at places of high productivity like marginal ice zone and East Greenland shelf polynya. Springer-Verlag, 1990 Polar Biology Springer-Verlag 10/5(1990-05-01), 343-350 0722-4060 10:5<343 1990 10 300 https://doi.org/10.1007/BF00237821 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00237821 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Barthel Klaus-Günther Institut für Meereskunde, Düsternbrooker Weg 20, D-2300, Kiel 1, Germany aut NATIONALLICENCE 773 0- Polar Biology Springer-Verlag 10/5(1990-05-01), 343-350 0722-4060 10:5<343 1990 10 300 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer