Effect of aerial exposure on concentrations of selected metabolites in blood of the Norwegian lobsterNephrops norvegicus (Crustacea: Nephropidae)
Effect of aerial exposure on concentrations of selected metabolites in blood of the Norwegian lobsterNephrops norvegicus (Crustacea: Nephropidae)
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DOI：
10.1007/bf01344278
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发表时间：
1990-02
期刊：
影响因子：
2.4
通讯作者：
John I. Spicer;A. Hill;A. Taylor;R.H.C. Strang
中科院分区：
文献类型：
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作者：
John I. Spicer;A. Hill;A. Taylor;R.H.C. Strang
1987年12月至1988年3月期间从苏格兰克莱德湾采集的挪威龙虾Nephropsnorvegicus(L.)在10°C的实验性浮现中无法存活超过18小时。在此期间，静脉血中的氧分压（PνO2）迅速下降，龙虾通过无氧代谢补充细胞能量需求。 L-乳酸在血液中的快速积累表明了这一点。虽然如果将龙虾放在冰上，存活率会增加（约 36 至 48 小时），但尽管存在温度差异，血液中 L-乳酸的积累与 10°C 下的龙虾没有显着差异。没有迹象表明N.褐藻能够在羽化过程中进一步代谢循环L-乳酸。苏醒时，由于操作压力和窒息，血液中的血糖也明显升高。实验室研究获得的结果与克莱德湾模拟捕鱼活动的结果相当吻合。两组结果都在甲壳类动物对空气呼吸的适应和龙虾收获后处理的评估的背景下进行了讨论。
The Norwegian lobsterNephrops norvegicus(L.) collected from Firth of Clyde, Scotland between December 1987 and March 1988, was unable to survive longer than 18 h experimental emersion at 10°C. During this time the partial pressure of oxygen (PνO2) in the venous blood decreased rapidly and the lobster supplemented cellular energy requirements by anaerobic metabolism. This was indicated by the rapid accumulation ofL-lactate in the blood. Although the survival rate increased (to ca 36 to 48 h) if lobsters were kept on ice, the accumulation ofL-lactate in the blood was not significantly different from lobsters at 10°C, despite the temperature difference. There was no indication thatN. norvegicuswas able to further metabolize circulatingL-lactate during emersion. On emersion there was also a marked hyperglycemia in the blood due to the stress of handling and asphyxiation. There was fairly good agreement between results obtained during laboratory studies and simulated fishing activity in the Firth of Clyde. Both sets of results are discussed in the context of adaptation to air breathing within the Crustacea and an assesment of post-harvest treatment of lobsters.