Dictionary of ichthyology. 2009.
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
conditional fishing mortality rate — the fraction of an initial stock which would be caught during the year (or season) if no other causes of mortality operated (Ricker, 1975). Also called annual or seasonal fishing mortality rate. Abbreviated as m or m … Dictionary of ichthyology
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 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
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
commercial fishing — Introduction the taking of fish and other seafood and resources from oceans, rivers, and lakes for the purpose of marketing them. Fishing is one of the oldest employments of humankind. Ancient heaps of discarded mollusk shells (shell… … Universalium
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
