9 research outputs found
Accessing the inaccessible: buoyancy-driven coastal currents on the shelves of Greenland and eastern Canada
No full textWinter studies on zooplankton in Arctic Seas. The Storfjord (Svalbard) and adjacent ice-covered Barents Sea
No full textFeeding in Arctic darkness: mid-winter diet of the pelagic amphipods Themisto abyssorum and T. libellula
No full textThe pelagic amphipods Themisto abyssorum
and Themisto libellula represent important links between the
herbivore zooplankton community and higher trophic levels
of the Arctic marine food webs. Large double structured
eyes of both of these hyperiid species are assumed to be used
for visual prey detection. However, no information is
available on the feeding strategies of these visually searching
predators for the period of the polar night, a time of year
with no or very low levels of daylight. Here, we report on the
stomach and gut content of both Themisto species collected
during a January expedition around Svalbard (78�° to 81�°N).
Results indicate that T. abyssorum and T. libellula feed
actively during the Arctic winter. The major food source of
both amphipods consisted of calanoid copepods, most frequently
Calanus finmarchicus
The role of arctic zooplankton in biogeochemical cycles: respiration and excretion of ammonia and phosphate during summer
No full textBiogeography and Photosynthetic Biomass of Arctic Marine Pico-Eukaroytes during Summer of the Record Sea Ice Minimum 2012
No full textA 20-year coupled ocean-sea ice-atmosphere variability mode in the North Atlantic in an AOGCM
No full text
