ABSTRACT The primary ecotope for Platorchestia platensis is supralittoral wrack, but occasionally this species may be found living in, and feeding on, rotting driftwood as a secondary ecotope. Lower oxygen uptake rates were measured for driftwood-fed compared with wrack-fed P. platensis. The null hypothesis that the metabolic rate in P. platensis would remain unchanged after reversing the diet from driftwood to wrack was rejected. Diet reversal experiments demonstrated that the oxygen consumption rates of P. platensis were reversible and gradually attained. This is consistent with the change of diet from wrack to driftwood, or vice versa, causing physiological changes involving oxygen consumption in P. platensis, which are described as acclimation rather than adaptation.

中文翻译：

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饮食对 talitrid 片脚类 Platorchestia platensis 摄氧率的影响

摘要 Platorchestia platensis 的主要生态群落是海岸上的残骸，但偶尔也会发现该物种生活在腐烂的浮木中，并以腐烂的浮木为食，作为次生生态群落。与沉船喂养的 P. platensis 相比，浮木喂养的氧气吸收率较低。在将浮木饮食逆转为沉船后，P. platensis 的代谢率将保持不变的无效假设被拒绝。饮食逆转实验表明，P. platensis 的耗氧率是可逆的并逐渐达到。这与从沉船到浮木的饮食变化是一致的，反之亦然，从而导致 P. platensis 耗氧量的生理变化，这被描述为适应而不是适应。