annual natural mortality rate
annual mortality rate (the ratio between the number of fish which die during a year from causes other than fishing and the number alive at the beginning of that year. Also called conditional natural mortality rate and seasonal natural mortality rate)

Dictionary of ichthyology. 2009.

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  • conditional natural mortality rate — The fraction of an initial stock that would die from causes other than fishing during a year (or season), if there were no fishing mortality. Also called: annual natural mortality rate, seasonal natural mortality rate …   Fisheries — dictionary

  • conditional natural mortality rate — The fraction of an initial stock that would die from causes other than fishing during a year (or season), if there were no fishing mortality. Also called: annual natural mortality rate, seasonal natural mortality rate …   Fisheries — dictionary

  • conditional natural mortality rate — the fraction of an initial stock that would die from causes other than fishing during a year (or season), if there were no fishing mortality (Ricker, 1975). Also called annual natural mortality rate, seasonal natural mortality rate …   Dictionary of ichthyology

  • annual mortality rate — the ratio between the number of fish which die during a year from causes other than fishing and the number alive at the beginning of that year. Also called annual natural mortality rate, conditional natural mortality rate, seasonal natural… …   Dictionary of ichthyology

  • mortality rate — 1) the rate at which the numbers in a population decrease with time due to various causes. The proportion of the total stock (in numbers) dying each year is the annual mortality rate. To facilitate calculations, mortality is expressed as an… …   Dictionary of ichthyology

  • Mortality rate — Crude death rate by country Mortality rate is a measure of the number of deaths (in general, or due to a specific cause) in a population, scaled to the size of that population, per unit time. Mortality rate is typically expressed in units of… …   Wikipedia

  • natural mortality — a measure of the rate of removal of fish from a population from natural causes, not through fishing. Includes predation, cannibalism, senility, disease, pollution, etc. The balance that must be struck between natural mortality and fishing… …   Dictionary of ichthyology

  • seasonal total mortality rate — the number of fish which die during a season from causes other than fishing divided by the initial number (Ricker, 1975). Also called annual mortality rate, annual natural mortality rate, conditional natural mortality rate, seasonal natural… …   Dictionary of ichthyology

  • Natural burial — is a process by which the body of a deceased person is interred in the soil in a manner that does not inhibit decomposition and allows the body to recycle naturally. It is seen as an alternative to contemporary Western burial methods. Contents 1… …   Wikipedia

  • Natural hazards in Colombia — The 1985 Armero tragedy is the worst natural disaster in Colombian history Natural disasters in Colombia are the result of several different natural hazards that affect the country according to its particular geographic and geologic features.… …   Wikipedia

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