A model of vertical distribution of pelagic eggs. A computer realization [HELP 17]
Abstract
The presented mathematical model and it's realization in an interactive
computer program describes the vertical distribution of
pelagic fish and plankton eggs. The water column has a density
gradient and the vertical diffusion coefficient is a function of the
wind blowing a t the surface. The density and turbulence coefficient
profiles of the water column are defined to be invariant with time.
The model is consequently able to describe only the short term
fluctuations of the concentration of eggs. The eggs may be
distributed i n several size- and buoyancy-groups. The t o t a l number
of eggs in the water column is constant during one session. Despite
the crude formulation of the model it is useful for a number of
purposes of which the main are the evaluation of sampling designs for
planktonic eggs and the establishment of the coincidence between
contaminants and biological resources i n a vulnerable l i f e stage.
Publisher
HavforskningsinstituttetSeries
help1988 nr.17