Abstract (eng)
The diversity and distribution of bryozoan communities are little known from polar regions. The recent cruise “MSM86 Vesteris Seamount” by the RV MARIA S. MERIAN collected numerous samples of benthic organisms, including abundant bryozoans. The bryozoan diversity of samples from three seamounts, Vesteris Seamount, Southern Seamount and Boyd Seamount, located close to Central Greenland Basin, north to Jan Mayen Island, and in the Mohns Ridge was studied. These localities range from 257-1209m depth where effusive and pyroclastic rocks are dominant in shallow waters and dropstone and mud are found in higher depths. In total, 33 bryozoan species were identified in this study, with eleven remaining in open nomenclature possibly representing new species. The findings from Vesteris complement first surveys from previous studies, whereas bryozoans from the Southern and Boyd Seamounts are described for the first time. Similar to previous reports, Palmiskenea skenei (Ellis & Solander, 1786), remains the most dominant cheilostome in all Seamounts. Additionally, this study suggest that the Southern seamount presents a bryozoan community with more affinities to the North Atlantic fauna, while Vesteris and Boyd Seamount show similarities to arctic communities.