The Endocrine System of Fish

Once they have elicited the appropriate action in their target tissue, hormones 

ACTH = adrenocortico-trophic hormone T4 = thyroxine T3 = triiodothyronine E, = estradiol T = testosterone I7,20/IP = 17,20/1-dihydroxy-4-pregnen-3-one KT = Il-ketotestosterone VTG = vitellogenin. 

Stress response (Immune system) Osmoregulation Metabolism 

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Figure 1 A schematic diagram of the endocrine system of fish. TRH = thyrotrophin releasing hormone GnRH = gonadotrophin releasing hormone CRH = corticotrophin releasing hormone TSH = thyroid stimulating hormone GtH = gonadotrophins I and II ...

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