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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Comparative trends in respiration rates, sinking and swimming speeds of copepods Pseudocalanus elongatus and Acartia clausi with comments on the cost of brooding strategy
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Comparative trends in respiration rates, sinking and swimming speeds of copepods Pseudocalanus elongatus and Acartia clausi with comments on the cost of brooding strategy

机译：pe足类假单胞菌和克氏A螨的呼吸速率，下沉和游泳速度的比较趋势，并附有育雏策略成本的评论

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摘要

Comparative studies of total and basal respiration rate, body mass density, gravity sinking, routine and escape swimming speeds in sac-spawning and broadcast-spawning females of Pseudocalanus elongatus and Acartia clausi, respectively, were conducted. The effect of temperature on the behavior of females with different fecundity status was investigated. In ovigerous females of P. elongatus extra energy expenditures related to ovisac gravity and hydrodynamic resistance during ovisac transport were estimated. Total respiration rate of non-brooding females of A. clausi and P. elongatus amounting to 0.076 and 0.079 mu g 02 ind(-1) h(-1), respectively, were about 1.3 fold lower than that of P. elongatus females carrying on average 10 eggs in the sac (0.101 mu g O-2 ind(-1)h(-1)). Nevertheless, weight-specific cost of body and egg sac transport in ovigerous P. elongatus (0.11 mu g C mu g C-1 d(-1)) was lower than the cost of body transport of A. clausi without eggs (0.14 mu g C mu g C-1 d(-1)). This indicates greater energy efficiency of uniform routine swimming in P. elongatus in comparison with jump-sink mode of reposition in A. clausi. A significant increase in sinking speed of ovigerous females of P. elongatus (1.2 fold and 1.7 fold in comparison with non-brooding P. elongatus and A. clausi, respectively) and decrease in swimming speed (13 fold and 1.8 fold in comparison with non-brooding P. elongatus and A. clausi) seem to make them more vulnerable to the visual predators. (C) 2016 Elsevier B.V. All rights reserved.
机译：进行了比较，分别研究了Pseudocalanus elongatus和Acartia clausi的卵产卵和广播产卵雌性的总呼吸速率和基础呼吸速率，体重密度，重力沉没，常规和逃逸游泳速度。研究了温度对不同生育能力女性行为的影响。在长寿雌性的雌雄同体中，估计了在输卵过程中与输卵管重力和流体动力阻力有关的额外能量消耗。非繁殖雌性A. clausi和伸长雌性的总呼吸率分别为0.076和0.079μg 02 ind（-1）h（-1），比携带雌性的伸长雌性的呼吸低约1.3倍。囊中平均有10个卵（0.101μgO-2 ind（-1）h（-1））。然而，在长卵P. elongatus（0.11μgCμgC-1 d（-1））中，体重和卵囊运输的重量比成本要比不含卵的A. clausi（0.14 mu。克C克C-1 d（-1））。这表明，与克劳西拟饵的跳跃-沉没式重新安置模式相比，在延长对虾中均匀常规游泳的能量效率更高。雌性伸长雌虾的下沉速度显着提高（分别比不育种的细长雌虾和青霉分别降低了1.2倍和1.7倍），游泳速度降低了（与不繁殖雌性相比，降低了13倍和1.8倍） -繁殖P. elongatus和A. clausi）似乎使它们更容易受到视觉掠食者的攻击。 （C）2016 Elsevier B.V.保留所有权利。

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