smoltification

smoltification

an internal metabolic process which enables a fish to adapt from fresh to sea water with a minimum of stress; characteristic of salmonid fish.
References in periodicals archive ?
mRNA expression of antioxidant enzymes (SOD, CAT and GSH-Px) and lipid peroxidative stress in liver of Atlantic salmon (Salmo salar) exposed to hyperoxic water during smoltification.
At present, tests for determining whether salmon have completed the physiological changes required to migrate safely a process called smoltification can take 48 hours or more and involve sending samples elsewhere in the UK or to Norway.
Biochemical and physiological studies demonstrated that SL might be involved in a variety of physiological actions including reproduction [3-5] smoltification [6] acid-base balance [7] background adaptation [8,9] phosphate transport [10] melanosome aggregation [11,12] and immune response [13].
During the smoltification period in salmonids, the capacity of the intestine to absorb saline fluid steadily increases until the peak of this transition (Nielsen et al.
Changes in plasma thyroxine during smoltification of coho salmon, Oncorhynchus kisutch.
A biochemical study of mucus lysozyme, proteins and plasma thyroxine of Atlantic salmon (Salmo salar) during smoltification.
CDNA cloning and expression analysis of thyroid hormone receptor in the coho salmon Oncorhynchus kisutch during smoltification.
The physiological process of smoltification is complex and one explanation for the lack of downstream movement by emancipated Coho Salmon juveniles is that they exceeded a threshold in size, age, or physiological status that resulted from being landlocked in Rifle Lake.
The eggs hatch during April-May and sea trout generally remain 2 years in fresh water before smoltification and migration to the sea.
Smoltification status and good physiological condition were shown to be important for the success of Atlantic salmon transfer to the sea (Virtanen et al.