Glossary

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Landings per unit effort, similar to cpue, but based on that part of the catches that are landed and reportedLandings per unit effort, similar to cpue, but based on that part of the catches that are landed and reported
A management plan includes the decision-making processes (harvest control rules, tactical decision making) and the sanctions on implementation and the requirements for monitoring and reporting; management plans may also exist in the form of rebuilding plaA management plan includes the decision-making processes (harvest control rules, tactical decision making) and the sanctions on implementation and the requirements for monitoring and reporting; management plans may also exist in the form of rebuilding pla
Management strategies consist of objectives with associated performance criteria, the implementation measures (e.g. input or output control) and what is considered a relevant knowledge base for decisionsManagement strategies consist of objectives with associated performance criteria, the implementation measures (e.g. input or output control) and what is considered a relevant knowledge base for decisions
Homogeneous sub-division of a fishery by fleet (e.g. the Dutch flatfish-directed beam trawl fishery by vessels < 300 hp in the North Sea); see also: fishery, fleetHomogeneous sub-division of a fishery by fleet (e.g. the Dutch flatfish-directed beam trawl fishery by vessels < 300 hp in the North Sea); see also: fishery, fleet
Maximum Sustainable Yield; the largest average catch or yield that can continuously be taken from a stock under existing environmental conditionsMaximum Sustainable Yield; the largest average catch or yield that can continuously be taken from a stock under existing environmental conditions
Group of fish of one species which shares common ecological and genetic features; the stocks defined for the purposes of stock assessment and management do not necessarily coincide with self-contained populationsGroup of fish of one species which shares common ecological and genetic features; the stocks defined for the purposes of stock assessment and management do not necessarily coincide with self-contained populations
Amount of fish added to the exploitable stock each year due to growth and/or migration into the fishing area, e.g. the number of fish that grow to become vulnerable to the fishing gear in one year would be the recruitment to the fishable stock that year; Amount of fish added to the exploitable stock each year due to growth and/or migration into the fishing area, e.g. the number of fish that grow to become vulnerable to the fishing gear in one year would be the recruitment to the fishable stock that year;
When SSB is at a level where the stock reproduction is impaired as evident from historical observationsWhen SSB is at a level where the stock reproduction is impaired as evident from historical observations
Spawning stock biomass; total weight of all sexually mature fish in the stockSpawning stock biomass; total weight of all sexually mature fish in the stock
Spawning Stock Biomass per Recruit: expected lifetime contribution to the spawning stock biomass for a recruit of a specific age (e.g. per age 2 individual); for a given exploitation pattern, rate of growth, and natural mortality, an expected equilibrium Spawning Stock Biomass per Recruit: expected lifetime contribution to the spawning stock biomass for a recruit of a specific age (e.g. per age 2 individual); for a given exploitation pattern, rate of growth, and natural mortality, an expected equilibrium
Stochastic Multispecies Model; stock assessment methodStochastic Multispecies Model; stock assessment method
A part of a fish population usually with a particular migration pattern, specific spawning grounds, and subject to a distinct fishery; in theory, a Unit Stock comprises all the individuals of fish in an area, which are part of the same reproductive procesA part of a fish population usually with a particular migration pattern, specific spawning grounds, and subject to a distinct fishery; in theory, a Unit Stock comprises all the individuals of fish in an area, which are part of the same reproductive proces

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