Catch per unit effort. A common method fisheries biologists use to compare the relative abundance of fish between one area of habitat and another where the only common link is the method you used to catch the fish. Catch per unit effort can be applied to a number situations, including the number fish captured divided by the amount of time it took to catch the fish (fish per hour), or by the number of seine sets made to catch fish (fish per seine set), or even the number of fish captured per square meter of net over a specific time period (fish per meter per hour).

See catch per unit of effort .

Catch per unit effort. A sampling method used to compare the relative abundance of fish between one area of habitat and another where the only common link is the method used to catch the fish. Catch per unit effort is typically expressed as the number of fish captured divided by the amount of time it took to catch the fish (e.g., fish per hour) or the number of fish captured per net set.