Impacts of meltwater discharge from marine-terminating glaciers on the protist community in Inglefield Bredning, northwestern Greenland

• DOI: 10.3354/meps13324
• Publication Date: 2020-04-15T21:05:27Z
• Authors: K Matsuno; N Kanna; S Sugiyama; A Yamaguchi; EJ Yang
• Keywords: Meltwater; Fjord; Protist; Dinoflagellate

To evaluate the effects of meltwater discharge from marine-terminating glaciers on a fjord protist community in northwestern Greenland during summer, we investigated distribution, abundance and biomass their relationships with hydrographic parameters. In standing stock protists, dinoflagellates (46.4%) oligotrich ciliates (39.5%) were dominant throughout study region. With respect to vertical abundant surface layer, mainly due suitable food conditions (abundance diatom nanoflagellates). Near glaciers, relatively high chlorophyll (chl ) concentrations found subsurface layers associated low-temperature, high-turbidity slightly nutrient levels, indicating that inputs upwelling glacial plume increased primary production. Large-sized Protoperidium spp. only at stations near where nutrients abundant, heterotrophic showed strong nanoflagellates. These findings suggest subglacial can stimulate nanoflagellate production, resulting increases ciliate dinoflagellate