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Studies of zooplankton nutrition in active dynamic zones of the Tropical Atlantic

Т. V. Pavlovskaya, V. V. Trusevich

Institute of Biology of the Southern Seas, 2 Nahimov Avenue, Sevastopol 99011, Ukraine

Summary

Data are presented concerning changes in the rate of consumption of different-size-fractions of the natural surface plankton in mass species of copepods as dependent on the dynamic activity of waters in the north-western part of the Tropical Atlantic. It is shown that with low concentrations of micro-plankton typical of the surface waters in a considerable part of the water area under study, the rations of animals are low (1— 10% of the body weight). Higher concentrations of phyto- and micro-zooplankton are observed in zones with more intensive vertical circulation (a cyclonic vortex and a junction of differently directed flows, that has made the nutrition intensity 5—10 times higher.

Ekologiya morya. - 1991. - Iss.37. - pp.8-14.

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