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Terms in this set (15)
maximum sustainable yield
The maximum catch that can be taken from a species' stock over an indefinite period. Under the assumption of logistic growth, the MSY will be exactly at half the carrying capacity of a species, however studies have shown that fishing at the level of MSY is often not sustainable
group of fish of the same species (for example, snapper) that occupy a defined area of the ocean
Quotas are set for the entire fishery. Boats can fish as hard as they want until the entire quota is filled. Derby fisheries have become less popular because they are unsafe for fishermen and difficult to manage.
The amount of catch that can be legally landed in a time period. It could refer to a fishery as a whole (total allowable catch) or to an amount allocated to an individual or company.
defined as the species caught, the fishing gear used, and the area of operation
Exclusive Economic Zone (EEZ)
The Law of the Sea provides each state an area of ocean over which that state has special rights to the exploration and use of marine resources. Generally a state's EEZ extends to a distance of 200 nautical miles (370 km) out from its coast.
the population of fish that a fishery can support
Bycatch is the unintentional harvest of marine life during fishing operations when other fish were the target. For example, bycatch might consist of a species which was not the targeted species, such as a shark caught on a tuna longline.
the total weight of a fish species in a given area
fish such as cod, halibut, and flounder, that live and feed near the bottom of the sea
large, predatory fish characterized by their long sword-like bill. Billfish include the sailfish, marlin and swordfish. They are important apex predators feeding on a wide variety of smaller fish and cephalopods
Small fish which are preyed on by larger predators. Typical ocean forage fish are small, filter feeding fish such as herring, anchovies and menhaden.
is a measure of how many fish are in a population or a fishing ground
the amount of fish that are allowed to escape the fishery and spawn
the number of new young fish that enter a population in a given year. More pragmatically, it can be defined as the number of young fish that attain a size where they can be legally caught
THIS SET IS OFTEN IN FOLDERS WITH...
Marine Biology Invertebrates
Marine Biology - Fish and Fishing
Marine Biology - Seabirds
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