DIFFUSION UPTAKE OF AMINO ACIDS IN SHALLOW WATERS

DIFFUSION UPTAKE OF AMINO ACIDS IN SHALLOW WATERS
WAGDY M. EL-SARRAF*, M.A. ABDEJ.MONEIM* AND J. OLAH**.
*National Institute of Oceanography and Fisheries. Anfoushy. Alexandria. Egypt.
**Fish Culture Research Institute. H – 554+ Szarvas. Hungary.
ABSTRACT
During the determination of heterotrophic
potential. It was observe~ that the results did
not agree with Michaelis – Menten kinetics but rether
followed simple diffusion 1″ water bodies. Simple
diffusion occurred at different temperatures at
both high and low substrate concentrations. The
results differ than previous ones by the fact that
. the simple diffusion occurred at concentrations
higher than 500 ~g dm- 3• According to this
observation. It can be assumed that dissolved amino
acids may serve as an addltfonal carbon or nltr::ogen
source and • only under a very limited conditions.
also as an energy source.