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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 ...
The tub gurnard (Chelidonichthys lucerna), also known as the sapphirine gurnard, tube-fish, tubfish or yellow gurnard, is a species of marine ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. It is found in the eastern Atlantic Ocean.
Fishes are a paraphyletic group and for this reason, the class Pisces seen in older reference works is no longer used in formal taxonomy.Traditional classification divides fish into three extant classes (Agnatha, Chondrichthyes, and Osteichthyes), and with extinct forms sometimes classified within those groups, sometimes as their own classes: [1]
The garfish is a predator which hunts in the open sea seeking out shoals of small fish such as Atlantic herring, sprats, sand eels, and even three-spined sticklebacks. They also feed on free-swimming crustaceans. [2] They frequently forage near to the shore and will hunt in and around natural or manmade features which interrupt tidal flows. [4]
The skipjack herring (Alosa chrysochloris) is a North American, migratory, fresh- and brackish water fish species in the herring family Alosidae. [3] The name skipjack shad comes from the fact that it is commonly seen leaping out of the water while feeding. [4]
The little tunny is a pelagic fish that can be found regularly in both offshore and inshore waters, and it is classified as a highly migratory species. [ 3 ] [ 4 ] The little tunny is best identified by the "worm-like" markings on its back and the dark spots appearing between its pectoral and ventral fins.
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.
The Prussian carp is a deep-bodied, robust fish which resembles the crucian carp (Carassius carassius) and grows to about 10 to 35 cm (4 to 14 in) in length. Its scales are larger than those of the crucian carp, and it typically has 27 to 32 scales along the lateral line , whereas the crucian carp usually has between 31 and 35.