Tooltip Tags: Science

Global Environmental Facility

A global foundation that represents an alternative asset manager dedicated to the energy, environmental, and natural resources sectors.

gefcapital.com

Fishing mortality at the maximum sustainable yield

The level of fishing intensity that, if applied constantly year after year, would result in the maximum sustainable yield (MSY).

Fishing mortality at the maximum economic yield

The level of fishing intensity that produces the maximum economic yield (MEY).

Fish carrying capacity

Measured for most tuna fishing vessels as the tonnage of fish that can be stored on the vessel when it is fully loaded, expressed in metric tons (mt). Although it is related to the size of the fish wells, the actual tonnage carried may vary depending on the size of the fish and how they are stored. FCC is often measured as the maximum landings observed for a given vessel.

Food and Agriculture Organization of the United Nations

www.fao.org

(Instantaneous) Fishing mortality rate

A measure of the intensity with which a stock is being exploited. This is the fraction of the fish population (or other defined group) that is expected to be caught at any single point in time.

See also Natural mortality, FMEY, FMSY and TAF.

Endangered, threatened or protected species

Designation used in some countries for vulnerable species such as marine mammals, sea turtles, and others.

Ecological risk assessment

A procedure that scientifically evaluates the probability that adverse ecological effects occur on ecosystems, and on components of ecosystems, as a result of exposure to specific stressors. In the fishery context, this assessment is used to identify the risks of fisheries activities to fish stocks.

Decision analysis

A formal analysis to aid decision‑making in the face of uncertainty. A decision analysis usually evaluates the relative likelihood that alternative management actions (e.g., average catch, constancy of catch, probability of rebuilding to a given biomass target, etc.) will achieve the expected outcomes. Decision analysis can also address management consequences under different plausible assumptions about the status of the stock or under different monitoring programs.