Vascular effects of acetylcholine, catecholamines and detergents on isolated perfused gills of pink salmon, Oncorhynchus gorbuscha coho salmon, O. kisutch and chum salmon, O. keta

Acetylcholine caused vasoconstriction whilst adrenaline and isoprenaline caused vasodilation in isolated perfused Pacific salmon gills. The detergent LAS produced concentration dependent vasodilation when present in the perfusate in concentrations of 0.6 to 3 mg 1 −1 . The effect of LAS was partly b...

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Bibliographic Details
Published in:Journal of Fish Biology
Main Authors: Bolis, L., Rankin, J. C.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1978
Subjects:
Keta
Pacific
Oncorhynchus gorbuscha
Pink salmon
Online Access:http://dx.doi.org/10.1111/j.1095-8649.1978.tb03466.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1978.tb03466.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1978.tb03466.x
Description
Summary:Acetylcholine caused vasoconstriction whilst adrenaline and isoprenaline caused vasodilation in isolated perfused Pacific salmon gills. The detergent LAS produced concentration dependent vasodilation when present in the perfusate in concentrations of 0.6 to 3 mg 1 −1 . The effect of LAS was partly blocked by propranalol suggesting the involvement of β‐adrenergic receptors. The maximum responses obtained with acetylcholine, adrenaline or LAS were all much greater in sea water or pre‐spawning freshwater fish than in spawning fish.

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