Zooplankton community within the Titanic Polygon, Northwest Atlantic, summer 2003

Depending on hydrological situation occurring in the frontal zone interrelated interannual variations in abundance and biomass of plankton species including Calanus hyperboreus and mesopelagic shrimps of Acanthephyra genus were observed.

In different years contribution of two parallel trophic nets passing primarily through the larger and smaller plankters to formation of the community varied. Data on the size structure of population of macroplankton shrimps are presented.