Macrobenthos composition,abundance and biomass in the Arctic Ocean along a transect between Svalbard and the Makarov Basin |
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Authors: | Ingrid Kröncke |
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Institution: | (1) Alfred-Wegener-Institute for Polar and Marine Research, P.O.B. 120161, D-27515 Bremerhaven, Germany;(2) Present address: Senckenberg Institute, Schleusenstrasse 39a, D-26382 Wilhelmshaven, Germany |
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Abstract: | Macrofauna has been sampled at 30 stations, at water depths of 1018–4478 m, along a transect extending between Northern Svalbard and the Makarov Basin, as a basis for understanding aspects of the benthic ecology of the Arctic Ocean. Species numbers, abundances and biomasses were extremely low, and generally varied between 0 to 11/0.02 m2, 0 to 850 individuals/m2, and 0 to 82.65 g/m2, respectively. A total of 42 species was found. The Amphipod Jassa marmorata was the most common species. Both numbers and biomasses of suspension-feeding species increased towards the Lomonosov Ridge, probably due to lateral transport of organic material by deep currents along the ridge. |
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