Abstract Hyperallometric reproduction, whereby large females contribute relatively more to the renewal of the population than small females, is purported to be widespread in wild populations, especially in fish species. Bioenergetic models derived from a sufficiently general metabolic theory should be able to capture such a relationship but it was recently stated that no existing models adequately capture hyperallometric reproduction. If this were true it would seriously challenge our capacity to develop robust predictions of the life history and population dynamics in changing environments for many species. Here, using the European sea bass (Dicentrarchus labrax) as a test case, we demonstrate multiple ways that hyperallometric reproduction in a population may emerge from the Dynamic Energy Budget (DEB) theory, some inherently related to the metabolism and life history and others related to plastic or genetically based intraspecific variation. In addition, we demonstrate an empirical and modelled hypoallometric scaling of reproduction in this species when environment is controlled. This work shows how complex metabolic responses may underlie apparently simple relationships between weight and reproduction in the wild and provides new and testable hypotheses regarding the factors driving reproductive scaling relationships found in the wild.

中文翻译：

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代谢理论下鱼类超异速繁殖的多种工作假设

摘要 超异速繁殖，即大型雌性比小型雌性对种群更新的贡献相对更大，据称在野生种群中普遍存在，尤其是在鱼类中。源自足够普遍的代谢理论的生物能模型应该能够捕捉到这种关系，但最近有人指出，没有现有模型能够充分捕捉超异速繁殖。如果这是真的，这将严重挑战我们对许多物种在不断变化的环境中的生活史和种群动态进行可靠预测的能力。在这里，使用欧洲鲈鱼 (Dicentrarchus labrax) 作为测试案例，我们展示了动态能量收支 (DEB) 理论中可能出现种群超异速繁殖的多种方式，一些与新陈代谢和生活史固有地相关，而另一些与可塑性或基于遗传的种内变异相关。此外，我们展示了当环境受到控制时，该物种的繁殖的经验和模型化的低度缩放比例。这项工作表明，复杂的代谢反应可能是野生体重和繁殖之间看似简单的关系的基础，并提供了关于在野外发现的繁殖比例关系的驱动因素的新的和可检验的假设。