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Cichlid. In addition to being mouthbrooders, some species continue to protect their young after they hatch, calling out to them when there is danger, and letting them swim back into their mouth to hold them safely away. [1] Apogonidae. Ariidae males carry a clutch of a few dozen eggs in their mouths, [2] for about two months before they hatch.
Females vacate the nest after spawning, [41] leaving the male behind to protect the eggs during the eight to ten days of incubation. [16] [70] [72] A nest may contain 2,000 to 5,000 eggs, possibly more. [68] Fecundity is usually related to size of the fish, so it is not unusual for the roe of a large gravid female to contain over 55,000 eggs.
However, a dogfish may generally be distinguished from a catshark as catsharks lay eggs while dogfish have live young. [3] Like most bottom feeders, catsharks feed on benthic invertebrates and smaller fish. They are not harmful to humans. [3] The family is paraphyletic, containing several distinct lineages that do not form a monophyletic group. [4]
The spiny dogfish has dorsal fins, no anal fin, and white spot along its back. The caudal fin has asymmetrical lobes, forming a heterocercal tail. The species name acanthias refers to the shark's two spines. These are used defensively. If captured, the shark can arch its back to pierce its captor with spines near the dorsal fins that secrete a ...
Juvenile fish are marketed as food. Whitebait is a marketing term for the fry of fish, typically between 25 and 50 millimetres long. Such juvenile fish often travel together in schools along the coast, and move into estuaries and sometimes up rivers where they can be easily caught with fine meshed fishing nets.
Category. : Viviparous fish. Viviparous fish are fish that give birth to live young, the eggs develop whilst receiving nutrition from the parent. See also: Category:Ovoviviparous fish - fish which give birth to live young which do not receive nourishment from the parent whilst in the womb.
Labrus onitis Linnaeus, 1758. The tautog (Tautoga onitis), also known as the blackfish, is a species of wrasse native to the western Atlantic Ocean from Nova Scotia to South Carolina. This species inhabits hard substrate habitats in inshore waters at depths from 1 to 75 m (5 to 245 ft). It is currently the only known member of its genus.
Sturgeon. Sturgeon (from Old English styrġa ultimately from Proto-Indo-European * str̥ (Hx)yón - [1]) is the common name for the 28 species of fish belonging to the family Acipenseridae. The earliest sturgeon fossils date to the Late Cretaceous, and are descended from other, earlier acipenseriform fish, which date back to the Early Jurassic ...