Macrobenthos composition, abundance and biomass in the Arctic Ocean

• Main Author: Kröncke, Ingrid
• Format: Dataset
• Language: English
• Published: PANGAEA 1994
• Subjects: Amundsen Basin; ARK-VIII/3; Gakkel Ridge; Arctic Ocean; Giant box corer; GKG; Lomonosov Ridge; Makarov Basin; Nansen Basin; Polarstern; PS19/150; PS19/151; PS19/155; PS19/165; PS19/166; PS19/181; PS19/182; PS19/186; PS19 ARCTIC91; PS2157-7; PS2158-1; PS2159-7; PS2161-5; PS2162-1; PS2163-5; PS2164-7; PS2165-6; PS2166-4; PS2167-4; PS2168-4; PS2170-1; PS2171-1; PS2172-5; PS2174-7; PS2175-6; PS2176-7; PS2177-7; PS2178-6; PS2179-4; PS2180-1; PS2181-1; PS2182-6; PS2183-5; PS2184-4; PS2185-3; PS2185-8; PS2186-6; PS2187-6; PS2189-6; Arctic; Jassa; Svalbard; amundsen basin; makarov basin; Polar Biology
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.733470; https://doi.org/10.1594/PANGAEA.733470

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 m**2, 0 to 850 individuals/m**2, and 0 to 82.65 g/m**2, 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.