stratified mean catch per tow
- stratified mean catch per tow
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from research vessel surveys and for separate species of fish, each average catch per tow in each geographical stratum of a region is multiplied by the stratum area. All the individual products are added together and the total divided by the sum of the entire area of the region giving stratified mean catch per tow, an index of relative abundance
Dictionary of ichthyology.
2009.
Look at other dictionaries:
stratified mean catch per tow — (stratified average catch per tow) From research vessel surveys, for separate species of fish, each average catch per tow determined from a series of tows in each geographic stratum of a region is multiplied by that area (square nautical miles)… … Fisheries — dictionary
relative abundance — An estimate of actual or absolute abundance; usually stated as some kind of index; for example, as bottom trawl survey stratified mean catch per tow … Fisheries — dictionary
relative abundance — An estimate of actual or absolute abundance; usually stated as some kind of index; for example, as bottom trawl survey stratified mean catch per tow … Fisheries — dictionary
