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探讨海洋动物自然寿命的分布,在研究海洋资源增殖、发展渔业生产、保护海洋水产资源、防止环境污染和有利于生态平衡都有重要意义。本文考虑到海洋动物的自然环境,相对说来比较稳定,引进海洋动物瞬时死亡效率的概念,更灵敏地反映了动物的死亡速度。通过简单的运算,推导出海洋动物的寿命分布为指数族分布,进而指出寿命分布与瞬时死亡效率的关系,讨论了几个具体的分布及其应用。
It is of great significance to study the distribution of natural life of marine animals and to study the multiplication of marine resources, the development of fishery production, the protection of marine and fishery resources, the prevention of environmental pollution and the ecological balance. In this paper, taking into account the natural environment of marine animals, relatively stable, the introduction of the concept of instantaneous mortality of marine animals, more sensitive to reflect the animal’s death rate. Through the simple calculation, the life distribution of marine animals is deduced as exponential family distribution, and then the relationship between life distribution and instantaneous mortality efficiency is pointed out. Several specific distributions and their applications are discussed.