Skating by: low energetic costs of swimming in a batoid fish
Skating by: low energetic costs of swimming in a batoid fish
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DOI：
10.1242/jeb.136358
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发表时间：
2016-06-15
影响因子：
2.8
通讯作者：
Kenaley, Christopher P.
中科院分区：
文献类型：
--
作者：
Di Santo, Valentina;Kenaley, Christopher P.
我们以三种游泳速度量化了底栖鱼肉片鱼，小滑板，Leucoraja Erinacea的氧气消耗率和运输成本（COT）。我们报告说，该物种的质量调整后的游泳代谢率最低。但是，该物种在大约五倍的五倍上，是某些定量记录的最低值的五倍。此外，由于溜冰鞋缺乏推进的尾鳍，无法维持稳定的游泳，超过相对较低的最佳速度S（-1），我们建议底栖rajiform鱼的运动效率仅限于降低的部分。单床速度关系。这使得这些物种适合长途易位，因此尤其容易受到区域尺度环境干扰的影响。
We quantify the oxygen consumption rates and cost of transport (COT) of a benthic batoid fish, the little skate, Leucoraja erinacea, at three swimming speeds. We report that this species has the lowest mass-adjusted swimming metabolic rate measured for any elasmobranch; however, this species incurs a much higher COT at approximately five times the lowest values recorded for some teleosts. In addition, because skates lack a propulsive caudal fin and could not sustain steady swimming beyond a relatively low optimum speed of 1.25 body lengths s(-1), we propose that the locomotor efficiency of benthic rajiform fishes is limited to the descending portion of a single COT-speed relationship. This renders these species poorly suited for long-distance translocation and, therefore, especially vulnerable to regional-scale environmental disturbances.