シャットネラ曝露がブリの血漿中カテコルアミン濃度に及ぼす影響〔英文〕

概要

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Tissue catecholamine (CA) levels of selected tissues (the cerebellum, head kidney, atrium, ventricle, gill, spleen, stomach, and intestine) were analyzed in the yellowtail Seriola quinqueradiata. The results showed a typical teleost pattern of tissue CA distribution with the highest levels of CAs found in the head kidney, suggesting that the physiological mechanism of CA discharge demonstrated for other teleosts is also functioning in this species. The effect of Chattonella exposure on plasma CA concentrations was then analyzed. Plasma CA concentrations were moderately elevated initially after exposure followed by a substantial in-crease at death (150 and 350 fold for noradrenaline and adrenaline respectively). The time course changes in plasma CAs suggest that the release of CAs is a secondary response triggered by the decrease in arterial Po2. This response was probably augmented by acidosis near death.
日本水産學會の論文