Open AccessIodine enrichment of Artemia and enhanced levels of iodine in Atlantic halibut larvae ( Hippoglossus hippoglossus L.) fed the enriched Artemia
Author(s) -
MOREN M.,
OPSTAD I.,
VAN DER MEEREN T.,
HAMRE K.
Publication year - 2006
Publication title -
aquaculture nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.941
H-Index - 79
eISSN - 1365-2095
pISSN - 1353-5773
DOI - 10.1111/j.1365-2095.2006.00386.x
Subject(s) - halibut , hippoglossus hippoglossus , metamorphosis , biology , iodine , flatfish , larva , hormone , pleuronectidae , fishery , zoology , endocrinology , ecology , flounder , chemistry , fish <actinopterygii> , organic chemistry
Flatfish metamorphosis is initiated by the actions of thyroid hormones (TH) and iodine is an essential part of these hormones. Hence, an iodine deficiency may lead to insufficient levels of TH and incomplete metamorphosis. In this study, different iodine sources for enrichment of Artemia were evaluated and the levels of iodine obtained in Artemia were within the range of 60–350 μ g g −1 found in copepods. Larval Atlantic halibut was fed Artemia enriched with either normal DC‐DHA Selco or DC‐DHA Selco (commercial enrichments) supplemented with iodine from days 9 to 60 postfirst feeding. There was no significant difference in growth, mortality or metamorphic development between the groups. The analyses showed that we were able to enrich Artemia with iodine. Further, the larvae‐fed iodine‐enriched Artemia had higher whole body iodine concentration compared to larvae‐fed Artemia without iodine enrichment.