BILE SALT-dependent lipase in
larval turbot, as influenced by density and lipid content of fed prey
K.
Hoehne-Reitan, E. Kjørsvik,K.I.
Reitan-2001
Journal
of Fish Biology, 58(3): 737-745
Abstract:
Turbot larvae were fed three different densities of rotifers (1000, 3000 and 7500 rotifers l-1) with a low lipid level
(<15% of dry weight) or 7500 rotifers l-1with a high lipid level (~30% of dry weight). The larval consumption
of rotifers increased with increasing prey densities
and the content of bile salt-dependent lipase (BSDL)
in larvae was correlated positively with the ingestion
rate from days 6 to 8. This suggests that BSDL
synthesis was stimulated by the amount of ingested
prey in the early larval phase. However, growth was
highest in larvae receiving the medium prey densities,
which indicates that the larvae were not able to
digest properly the ingested prey at the higher
density. No significant effect on the BSDL content was seen in turbot larvae fed rotifers with a high
or low lipid content.
(Norwegian University of Science and Technology, Department of Zoology,
Brattøra Research Centre, N-7491, Trondheim, Norway, Tel.: +47 73 59 03 21;
fax: +47 73 59 63 11;
E-mail: Katja.Hoehne@chembio.ntnu.no)