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  2. Glossary of fishery terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_fishery_terms

    Highly migratory species – a term which has its origins in the United Nations Convention on the Law of the Sea. It refers to fish species which undertake ocean migrations and also have wide geographic distributions. It usually denotes tuna and tuna-like species, shark, marlins and swordfish. See also transboundary stocks and straddling stocks.

  3. Fish migration - Wikipedia

    en.wikipedia.org/wiki/Fish_migration

    Many species of salmon are anadromous and can migrate long distances up rivers to spawn Allowing fish and other migratory animals to travel the rivers can help maintain healthy fish populations. Fish migration is mass relocation by fish from one area or body of water to another. Many types of fish migrate on a regular basis, on time scales ...

  4. Animal migration - Wikipedia

    en.wikipedia.org/wiki/Animal_migration

    A few hundred species migrate long distances, in some cases of thousands of kilometres. About 120 species of fish, including several species of salmon, migrate between saltwater and freshwater (they are 'diadromous'). [23] [24] Forage fish such as herring and capelin migrate around substantial parts of the North Atlantic ocean.

  5. Fish stocks - Wikipedia

    en.wikipedia.org/wiki/Fish_stocks

    Fish stocks are subpopulations of a particular species of fish, for which intrinsic parameters (growth, recruitment, mortality and fishing mortality) are traditionally regarded as the significant factors determining the stock's population dynamics, while extrinsic factors (immigration and emigration) are traditionally ignored.

  6. Migration (ecology) - Wikipedia

    en.wikipedia.org/wiki/Migration_(ecology)

    Wildebeest migrating in the Serengeti. Migration, in ecology, is the large-scale movement of members of a species to a different environment.Migration is a natural behavior and component of the life cycle of many species of mobile organisms, not limited to animals, though animal migration is the best known type.

  7. Aquatic animal - Wikipedia

    en.wikipedia.org/wiki/Aquatic_animal

    Many migratory aquatic animals, predominantly forage fish (such as sardines) and euryhaline fish (such as salmon), are keystone species that accumulate and transfer biomass between marine, freshwater and even to terrestrial ecosystems. World fisheries and aquaculture production of aquatic animals (1950–2022)

  8. Teleost - Wikipedia

    en.wikipedia.org/wiki/Teleost

    The Paracanthopterygii (cods, etc.) are Northern Hemisphere fish, with both salt and freshwater species. [43] Some teleosts are migratory; certain freshwater species move within river systems on an annual basis; other species are anadromous, spending their lives at sea and moving inland to spawn, salmon and striped bass being examples.

  9. North Pacific hake - Wikipedia

    en.wikipedia.org/wiki/North_Pacific_hake

    It is a migratory offshore fish and undergoes a daily vertical migration from the surface to the seabed at depths down to about 1,000 m (3,300 ft). It is the object of an important commercial fishery off the West Coast of the United States, and annual quotas are used to prevent overfishing.