Marine fishery

Marine fishery

The study and management of living marine resources and their habitat for the sustainable use of those resources and continued productivity, abundance.

Industry: Fishing

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Marine fishery

Existence value

Fishing; Marine fishery

The economic value of knowing that a resource exists, irrespective of the ability to use the resource now or in the future.

Habitats in which birth rates are lower than dealth rates and emigration is lower than immigration, as applied to equilibrium populations. A more general definition is that a sink is a compartment ...

Optimum size

Fishing; Marine fishery

The average size of the fish in a year-class at the time when the instantaneous rate of natural mortality equals the instantaneous rate of growth in weight for the year-class as a whole. At this ...

National Standard 9

Fishing; Marine fishery

Requires that "conservation and management measures shall, to the extent practicable, (a) minimise bycatch; and (b) to the extent bycatch cannot be avoided, minimise the mortality of such bycatch". ...

Food chain

Fishing; Marine fishery

The transfer of energy from the source in plants through a series of organisms with repeated eating and being eaten. At each transfer, a large proportion of the potential energy is lost as heat. ...

Multispecies fishery

Fishing; Marine fishery

Fishery in which more than one species is caught at the same time. Because of the imperfect selectivity of most fishing gears, most fisheries are "multispecies". The term is often used to refer to ...

Nominal effort

Fishing; Marine fishery

Nominal effort pertains to measures of fishing effort or vessel carrying capacity that have not been standardized. When catchability changes, e.g. through changes in gear technology, trends in ...