Egg production by the calanoid copepod Arcartia tonsa in the mesohaline Chesapeake Bay: the importance of food resources and temperature

Egg production of Acartia tonsa females was measured simultaneously with grazing and other b~ological and physical parameters in the mesohaline portlon of Chesapeake Bay, USA, during periods of 1987 and 1988. We hypothesized that egg production would be related to food abundance in situ, depending principally on phytoplankton in spring and n~~crozooplankton In summer.