New approaches to mesozooplankton production estimates against the background of food web considerations for the Bornholm Basin (Southern Baltic Proper)

Mesozooplankton production was estimated by using a new sampling technique and two alternative calculation methods. In essence, production estimates a re based on significantly higher abundances. The contribution of juvenile s tages to copepod and fish dynamics was generally low, so that the omission of juvenile stages in budgets will result in a small error. The situations reported in this study present a unique food web szenario, which in detail, however, was strongly dependent on methodology. Furthermore, relations bet ween trophic levels were considered with respect to vertical distribution.