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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Effect of temperature on embryonic development of Octopus mimus under controlled conditions
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Effect of temperature on embryonic development of Octopus mimus under controlled conditions

机译：温度对受控条件下章鱼胚胎发育的影响

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摘要

Although the mechanism by which temperature modulates the use of reserves and its consequences for organogenesis in octopus species is not yet known, there is evidence that temperature modulates the embryonic growth rate in cephalopods with consequences for hatchling characteristics. The primary objective of this study was to investigate the effect of temperature (12,15,18 and 21 ℃) on the duration of Octopus mimus embryo development and to generate a prediction model. The effects of temperature on size and physiological characteristics of embryos at stage XV were also studied. A third objective was to investigate whether temperature affects the time taken to reach stage XX using physiological time, i.e. degree-days (DD). The time taken to reach stage XV at 21 ℃ was 24,58 and 75% shorter than observed in eggs maintained at 18,15 and 12 ℃ respectively. Logarithmic models were obtained for the relationship between embryo stage and age, demonstrating an inverse relationship between environmental temperature and the duration of embryonic development Embryos maintained at 18 and 21 ℃ grew faster than those kept at 12 and 15 ℃, although that growth rate was accomplished by an inverse relationship between yolk and temperature. The degree-day model suggests that between 128 and 133 DD should be accumulated when embryos are maintained at 15 to 21 ℃ As in other invertebrate species the results on oxygen consumption indicate that embryos of 0. mimus have a higher sensitivity to temperature than adults. The results suggest that the optimum range of temperatures for these embryos is around 15 to 18 ℃.
机译：尽管尚不清楚温度调节章鱼物种储备的利用及其对器官发生的影响的机制，但有证据表明温度调节头足类动物的胚胎生长速率，从而影响孵化特性。这项研究的主要目的是研究温度（12、15、18和21℃）对章鱼模拟胚胎发育持续时间的影响，并建立预测模型。还研究了温度对第十五阶段胚胎大小和生理特性的影响。第三个目的是利用生理时间，即度数天（DD），研究温度是否影响到达第XX阶段所花费的时间。与在维持在18,15和12℃的卵中观察到的时间相比，在21℃达到XV阶段所需的时间分别缩短了24.58和75％。获得了对数模型，了解了胚胎的年龄与年龄之间的关系，表明环境温度与胚胎发育持续时间呈反比关系。尽管达到了增长速度，但保持在18和21℃的胚胎的生长速度快于保持在12和15℃的胚胎。蛋黄和温度成反比关系。度日模型表明，将胚胎保持在15到21℃时，应在128和133 DD之间积累。与其他无脊椎动物一样，耗氧量的结果表明0. mimus胚胎对温度的敏感性高于成年。结果表明，这些胚胎的最佳温度范围是15至18℃。

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    I. Uriarte; V. Espinoza; M. Herrera; O.Zuniga; A. Olivares; P.Carbonell; S. Pino; A. Farias; G Rosas;

  • 作者单位

    Instituto de Acuicultura (Aquaculture Institute), Universidad Austral de Chile, Chile,Centro de Investigati6n y Desarrotlo CIEN Austral CONICYT- Regional Goberment Los Lagos R10C1002, Chile,Hatchery de Invertebrados Marinos (Marine Invertebrate Hatchery), Universidad Austral de Chile, Chile;

    Hatchery de Invertebrados Marinos (Marine Invertebrate Hatchery), Universidad Austral de Chile, Chile;

    Hatchery de Invertebrados Marinos (Marine Invertebrate Hatchery), Universidad Austral de Chile, Chile;

    Facultad de Recursos del Mar (Faculty of Marine Resources), Universidad Antofagasta, Antofagasta, Chile;

    Facultad de Recursos del Mar (Faculty of Marine Resources), Universidad Antofagasta, Antofagasta, Chile;

    Hatchery de Invertebrados Marinos (Marine Invertebrate Hatchery), Universidad Austral de Chile, Chile;

    Centro de Investigati6n y Desarrotlo CIEN Austral CONICYT- Regional Goberment Los Lagos R10C1002, Chile;

    Instituto de Acuicultura (Aquaculture Institute), Universidad Austral de Chile, Chile,Centro de Investigati6n y Desarrotlo CIEN Austral CONICYT- Regional Goberment Los Lagos R10C1002, Chile;

    Unidad Multidisciplinaria de Docenda e Investigation de Sisal, Facultad de Cientias, Universidad National Autonoma de Mexico, Merida, Mexico;

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  • 关键词

    embryonic development; octopus mimus; temperature;

    机译：胚胎发育;章鱼拟态;温度;

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