The constraints on cephalopods: why squid aren't fish
The constraints on cephalopods: why squid aren't fish
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对头足类动物的限制：为什么鱿鱼不是鱼
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
D. Webber
中科院分区：
文献类型：
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作者：
R. O'dor;D. Webber
头足类和鱼类的趋同进化经常在解剖学的基础上进行讨论，但头足类动物的生活史、生理学和生物化学方面的最新进展表明，头足类动物受到一些限制，使它们无法与鱼类直接竞争。这些进展是在鱼类详细信息的背景下从喷气推进系统的基本低效需要鱿鱼的生物能量、生理和生化适应来最大化其代谢率的角度来回顾的。这种“高能”的适应被认为导致了这些鞘状头足类动物短暂的生活史和半产期的繁殖模式。相反，鱼的生理和生化特性使它们在长寿和反复繁殖方面具有明显的优势。
The convergent evolution of cephalopods and fish has often been discussed on an anatomical basis, but recent advances in the knowledge of cephalopod life cycles, physiology, and biochemistry suggest that there are constraints on cephalopods that prevent them from competing directly with fish. These advances are reviewed against the background of detailed information on fish from the perspective that the basic inefficiency of the jet-propulsion system has required bioenergetic, physiological, and biochemical adaptations in squid which maximize their metabolic rates. Such "high-energy" adaptations are suggested to have resulted in the short life history and semelparous reproductive patterns that seem to characterize these coleoid cephalopods. Conversely, the physiology and biochemistry offish give them distinct advantages for long lives and iteroparity.