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- Q5454650 subject Q8460595.
- Q5454650 abstract "Fish mortality is a parameter used in fisheries population dynamics to account for the loss of fish in a fish stock through death. The mortality can be divided into two types: Natural mortality: the removal of fish from the stock due to causes not associated with fishing. Such causes can include disease, competition, cannibalism, old age, predation, pollution or any other natural factor that causes the death of fish. In fisheries models natural mortality is denoted by (M). Fishing mortality: the removal of fish from the stock due to fishing activities using any fishing gear. It is denoted by (F) in fisheries models. (M) and (F) are additive instantaneous rates that sum up to (Z), the instantaneous total mortality coefficient; that is, Z=M+F. These rates are usually calculated on an annual basis. Estimates of fish mortality rates are often included in mathematical yield models to predict yield levels obtained under various exploitation scenarios. These are used as resource management indices or in bioeconomic studies of fisheries.".
- Q5454650 wikiPageWikiLink Q1058325.
- Q5454650 wikiPageWikiLink Q1420425.
- Q5454650 wikiPageWikiLink Q14373.
- Q5454650 wikiPageWikiLink Q14431238.
- Q5454650 wikiPageWikiLink Q170430.
- Q5454650 wikiPageWikiLink Q4914797.
- Q5454650 wikiPageWikiLink Q58702.
- Q5454650 wikiPageWikiLink Q7229803.
- Q5454650 wikiPageWikiLink Q8460595.
- Q5454650 wikiPageWikiLink Q972788.
- Q5454650 type Thing.
- Q5454650 comment "Fish mortality is a parameter used in fisheries population dynamics to account for the loss of fish in a fish stock through death. The mortality can be divided into two types: Natural mortality: the removal of fish from the stock due to causes not associated with fishing. Such causes can include disease, competition, cannibalism, old age, predation, pollution or any other natural factor that causes the death of fish. In fisheries models natural mortality is denoted by (M).".
- Q5454650 label "Fish mortality".
- Q5454650 seeAlso Q1420425.