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Some particular types of migration are anadromous, in which adult fish live in the sea and migrate into fresh water to spawn; and catadromous, in which adult fish live in fresh water and migrate into salt water to spawn. [2] Marine forage fish often make large migrations between their spawning, feeding and nursery grounds. Their movements are ...
Juvenile swordfish are far more vulnerable to predation, and are eaten by a wide range of predatory fish. [6] [23] Intensive fishery may be driving swordfishes and sharks into harder competition for reduced amounts of prey and therefore pitting them to fight more. [23] Human fishery is a major predator of swordfishes.
Diel vertical migration (DVM), also known as diurnal vertical migration, is a pattern of movement used by some organisms, such as copepods, living in the ocean and in lakes. The adjective "diel" ( IPA : / ˈ d aɪ . ə l / , / ˈ d iː . əl / ) comes from Latin : diēs , lit.
Temperature is a driving factor of migration that is dependent on the time of year. Many species, especially birds, migrate to warmer locations during the winter to escape poor environmental conditions.
The capelin move inshore in large schools to spawn and migrate in spring and summer to feed in plankton rich areas between Iceland, Greenland, and Jan Mayen. The migration is affected by ocean currents. Around Iceland maturing capelin make large northward feeding migrations in spring and summer.
Driving in the winter can be terrifying. We've got you covered with 11 mistakes to avoid while driving in icy or snowy conditions.
However, when winter approaches, they begin their migration south and start relying more on lichen. Moreover, reindeer migrate an average of 12 to 34 miles per day and can run at speeds of up to ...
The days are short and the nights are long. That can only mean one thing: The winter solstice is coming. The first day of winter for the northern hemisphere of Earth will begin on Dec. 21 at ...