SINE sequences detect DNA fingerprints in salmonid fishes

Proliferative Kidney Disease in Salmonid Fishes

Salmonid fishes undergoing the process of smoltification

have elevated levels of thyroid hormones (Barron, 1986; Hoar, 1988; Datta et al., 1999; Eales, 1990). Thyroid hormones play a central role in controlling many of the alterations in physiology, morphology and behavior noted during this metamorphic transition in juvenile salmon (Hoar, 1988). Thyroid hormones have also been identified in altering the visual system during smoltification. During mig...

The evolutionary ecology of alternative migratory tactics in salmonid fishes.

Extensive individual variation in spatial behaviour is a common feature among species that exhibit migratory life cycles. Nowhere is this more evident than in salmonid fishes; individual fish may complete their entire life cycle in freshwater streams, others may migrate variable distances at sea and yet others limit their migrations to larger rivers or lakes before returning to freshwater strea...

Gonadotropin Secretion by Gonadotropin- Hormone in Salmonid Fishes

Gonadotropin-re[ea$ing hormone (GnRH} plays a central role in the control of reproductive function in vertebrates. In salmonids, salmon GnRH (sGnRH) secreted by preoptic GnRH neurons regulates gonada[ maturation through stimulation of synthesis and release of pituitary gonadotropins (GTHs), [n addition, several lines ot our evidence indicate that sGnRH is involved in spawning behavior, and serv...

Multiple forms of supernatant malate dehydrogenase in salmonid fishes.

Salmon generally possess three forms of supernatant malate dehydrogenase whose subunit compositions are indicated by the formulas AA, AB, and BB. Each of the homodimers (AA and BB) has now been purified to homogeneity. The two enzymes are similar in molecular size and in catalytic properties to the supernatant malate dehydrogenases of higher vertebrates; both are catalytically distinct from the...