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

One approach used to assign ages to fish, given length measurements. Used to convert catch-at-size data into catch-at-age data. The keys specify the probability that fish of a given size belong to ...

fish

Fishing; Marine fishery

Used as a collective term, includes mollusks, crustaceans and any aquatic animal which is harvested.

instantaneous rate of mortality (Z)

Fishing; Marine fishery

When fishing and natural mortality act concurrently, the natural logarithm of the survival rate (with sign changed) for deaths due to either natural causes (instantaneous rate of natural mortality, ...

maximum sustainable yield (MSY)

Fishing; Marine fishery

The largest average catch or yield that can continuously be taken from a stock under existing environmental conditions. For species with fluctuating recruitment, the maximum might be obtained by ...

bathyl zone

Fishing; Marine fishery

The seafloor between depths of 1,000 meters and approximately 4,000 meters.

gyre

Fishing; Marine fishery

Large cyclonic current that moves water in a circular pattern from the tropics to the polar seas.

water pollution

Fishing; Marine fishery

Presence in water of harmful and objectionable material-obtained from sewers, industrial wastes, and rainwater runoff-in sufficient concentrations to make it unfit for use.