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. 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

  • 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… …   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

  • 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

  • Failure rate — is the frequency with which an engineered system or component fails, expressed for example in failures per hour. It is often denoted by the Greek letter λ (lambda) and is important in reliability engineering. The failure rate of a system usually… …   Wikipedia

  • M — instantaneous rate of natural mortality (when natural and fishing mortality operate concurrently it is equal to the instantaneous total mortality rate, multiplied by the ratio of natural deaths to all deaths (Ricker, 1975). Also called force of… …   Dictionary of ichthyology

  • N — number of fish studied; n is often used the letter represents a wriggling eel and in Phoenician and Hebrew is called nun (a fish) 1) annual mortality rate (the ratio between the number of fish which die during a year from causes other than… …   Dictionary of ichthyology

  • France — /frans, frahns/; Fr. /frddahonns/, n. 1. Anatole /ann nann tawl /, (Jacques Anatole Thibault), 1844 1924, French novelist and essayist: Nobel prize 1921. 2. a republic in W Europe. 58,470,421; 212,736 sq. mi. (550,985 sq. km). Cap.: Paris. 3.… …   Universalium

  • Ukraine — /yooh krayn , kruyn , yooh krayn/, n. a republic in SE Europe: rich agricultural and industrial region. 50,684,635; 223,090 sq. mi. (603,700 sq. km). Cap.: Kiev. Russian, Ukraina. Formerly, Ukrainian Soviet Socialist Republic. * * * Ukraine… …   Universalium

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