caa a22 4500 465763391 CHVBK 20180323111906.0 cr unu---uuuuu 170327e19900601xx s 000 0 eng 10.1007/BF00233687 doi (NATIONALLICENCE)springer-10.1007/BF00233687 Schalk P. Alfred-Wegener-Institut für Polar- und Meeresforschung, Postfach 120161, D-2850, Bremerhaven, Federal Republic of Germany aut Biological activity in the antarctic zooplankton community [Elektronische Daten] [P. Schalk] Summary: Zooplankton biomass and respiratory ETS activity were studied along a transect at 49°W, running from open Scotia Sea water (57°S) into the Weddell Sea pack ice (62°S) in November-December 1988. Zooplankton biomass and respiratory activity were relatively high in the ice edge region and in the frontal zone separating the Scotia Sea from waters in the south; low biomasses and activities were encountered under the pack ice. The higher activities in the frontal zone were mainly attributed to locally higher water temperatures, while in the ice edge region they were probably related to changes of the Zooplankton population into more active developmental stages. This development in life stages is possibly a response to ice edge generated phytoplankton blooms. A comparison of the most abundant Zooplankton taxa indicated that amphipods and euphausiids had relatively the highest weight specific ETS activities. The developmental stages of Euphausia superba, from juvenile to sexually mature adults, showed a large variability in ETS activity; only the most inactive stages were found under the pack ice. The difference in respiration between the most active and inactive stages was at least a factor of 6 and is of importance to the overwintering of the species in the under ice habitat. Springer-Verlag, 1990 Polar Biology Springer-Verlag 10/6(1990-06-01), 405-411 0722-4060 10:6<405 1990 10 300 https://doi.org/10.1007/BF00233687 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00233687 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Schalk P. Alfred-Wegener-Institut für Polar- und Meeresforschung, Postfach 120161, D-2850, Bremerhaven, Federal Republic of Germany aut NATIONALLICENCE 773 0- Polar Biology Springer-Verlag 10/6(1990-06-01), 405-411 0722-4060 10:6<405 1990 10 300 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer