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现象 > 生物学现象 > 死亡率 > 自然死亡率

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Creado: 2020-07-03T17:01:17.504+02:00

自然死亡率  

DEFINICIÓN

  • Natural mortality is deaths of fish from all causes except fishing (e.g. ageing, predation , cannibalism, disease and perhaps increasingly pollution). It is often expressed as a rate that indicates the percentage of fish dying in a year; for example a natural mortality rate of 0.2 implies that approximately 20% of the population will die in a year from causes other than fishing.

    Creado: 7/3/20

    (en)

CONCEPTO GENÉRICO

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URI

http://aims.fao.org/aos/agrovoc/c_5e26404e

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