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首页> 外文期刊>Marine biology >Effect of body mass, temperature and food deprivation on oxygen consumption rate of common cuttlefish Sepia officinalis
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Effect of body mass, temperature and food deprivation on oxygen consumption rate of common cuttlefish Sepia officinalis

机译：体重，温度和食物匮乏对普通墨鱼乌贼墨耗氧率的影响

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摘要

Predictions of short and long term changes in Sepia officinalis metabolism are useful, since this species is both economically important for aquaculture and also is an ideal experimental laboratory organism. In this study standard and routine oxygen consumption rates of newly hatched and juvenile laboratory raised cuttlefish S. officinalis ranging between 0.04 and 18.48 g dry body mass (Dm), were measured over a range of temperatures (10, 15, 20 and 25℃). The mass exponent (b) ranged between 0.706 and 0.992 for standard oxygen consumption and between 0.694 and 0.990 for routine oxygen consumption. Oxygen consumption scaled allometrically (b - 0.7) with body mass for cuttlefish <2 g Dm and isometrically (b = 1) thereafter. No significant differences were apparent amongst the slopes of oxygen consumption and body mass at different temperatures for standard and routine oxygen consumption. However, the intercepts differed significantly amongst the regression lines, indicating a significant effect of temperature on the magnitude of oxygen consumption. The combined effect of temperature (7) and dry body mass (Dm) are best described by the following equations: cuttlefish <2 g, MO_2 = 0.116Dm~(0.711)1.086~T and >2 g, MO_2 = 0.076Dm~(0.983) 1.091~T for standard oxygen consumption; cuttlefish <2 g, MO_2 = 0.538Dm~(0.729) 1.057~T and >2 g, MO_2 = 0.225Dm~(0.962) 1.081~T for routine oxygen consumption. Using thesernequations it was estimated that a cuttlefish of 1 g Dm held at 20℃, eating 5% Dm day~(-1) and undergoing standard and routine metabolism consumes 21.3 and 35.4%, respectively of its total daily energy intake. Juvenile cuttlefish (3.32-5.08 g Dm) held at 15℃ and deprived of food for 27 days maintained a stable standard oxygen consumption rate for the first 6 days following starvation. By the 18th day without food, oxygen consumption rate had declined by 53% and further declined to 65% below the standard oxygen consumption rate on the 27th day. Upon resumption of feeding, the respiration rate returned immediately to the initial level prior to food deprivation. The present study defines the basic energy requirements and genera] physiological state of young cuttlefish at temperatures of 10-25℃ with and without food.
机译：乌贼墨代谢的短期和长期变化的预测是有用的，因为该物种对于水产养殖既在经济上很重要，又是理想的实验性实验室生物。在本研究中，在一定温度范围内（10、15、20和25℃）测量了刚孵出的幼鱼墨鱼S. officinalis的标准耗氧率和常规耗氧率，其干体重为0.04至18.48 g。 。对于标准的氧气消耗，质量指数（b）的范围在0.706至0.992之间，对于常规的氧气消耗，质量指数（b）在0.694至0.990之间。乌贼<2 g Dm时，氧气消耗与体重成正比（b-0.7），此后等距（b = 1）。在标准温度和常规氧气消耗量的不同温度下，氧气消耗量和体重的斜率之间没有明显差异。但是，回归线之间的截距差异很大，表明温度对耗氧量的影响很大。温度（7）和干体重（Dm）的组合效果最好用以下等式描述：墨鱼<2 g，MO_2 = 0.116Dm〜（0.711）1.086〜T和> 2 g，MO_2 = 0.076Dm〜（ 0.983）标准氧气消耗量1.091〜T;墨鱼<2 g，MO_2 = 0.538Dm〜（0.729）1.057〜T，> 2 g，MO_2 = 0.225Dm〜（0.962）1.081〜T。使用这些等式，估计在20℃下保持1 g Dm的墨鱼，每天进食5％Dm〜（-1）并进行标准和常规代谢，分别消耗其每日总能量摄入的21.3和35.4％。在饥饿后的头6天内，将乌贼（3.32-5.08 g Dm）保持在15℃，禁食27天，保持了稳定的标准耗氧率。到没有食物的第18天，耗氧率下降了53％，并在第27天进一步降至标准耗氧率以下的65％。恢复喂食后，呼吸频率立即恢复到食物匮乏之前的初始水平。本研究定义了在有食物和无食物的情况下，温度在10-25℃的墨鱼幼鱼的基本能量需求和一般的生理状态。

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  • 来源
    《Marine biology》 |2009年第12期|2473-2481|共9页
  • 作者

    Panagiotis Grigoriou; Christopher Allan Richardson;

  • 作者单位

    School of Ocean Sciences, College of Natural Sciences, Bangor University, Menai Bridge, Anglesey LL59 5AB, UK;

    School of Ocean Sciences, College of Natural Sciences, Bangor University, Menai Bridge, Anglesey LL59 5AB, UK;

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