Annual population development and production by small copepods in Disko Bay, western Greenland

摘要: The population of small copepod species (approximately <1 mm) were investigated during an annual cycle in Disko Bay, western Greenland. considered Acartia longiremis, Pseudocalanus spp., Oithona Oncaea Microsetella and Microcalanus spp. Most the present surface waters year round numerically dominated community, biomass from late summer throughout winter. was main contributor, while terms biomass. In uppermost 50 m, maximum abundance, secondary production observed September after phytoplankton practically had terminated winter initiated. free spawning longiremis showed a strong seasonal fluctuation egg production, contrast to carrying These long season maintained more stable round. Secondary estimated by three different ways: (1) based on obtained specific rates, (2) temperature dependent equation, (3) multilinear regression taking temperature, body weight chlorophyll into consideration. contribution insignificant when compared large Calanus spring- post-bloom. However, winter, where left upper water strata for hibernation, played crucial role pelagic carbon cycling.