In teleosts, cortisol is a major corticosteroid hormone that binds
to the corticosteroid receptors in the cell cytoplasm and translocates
to the nucleus, where the cortisol regulates expression of
CR responsive genes. It is well known that the activation of corticosteroid
receptors accompanies SW acclimation in euryhaline teleosts
[11,41,63]. The presence of multiple corticosteroid receptors
in the teleost brains [4] and osmoregulatory organs creates a complex
corticosteroid-signaling phenomenon during acute stress. A
number of researchers have reported on the presence of GR in
the osmoregulatory organs of teleosts using various molecular