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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.
Whereas FishBase is a database about adult finfish, LarvalBase is a database about the juvenile stages of fish. Juvenile fish often feed differently and occupy different habitats than the adults do. LarvalBase complements FishBase by providing information about these early stages of life.
Fish, eels, some lobsters, blue crabs (and so forth) do have distinct juvenile habitats, whether with or without overlap with adult habitats. In terms of management, use of the nursery role hypothesis may be limiting as it excludes some potentially important nursery sites. In these cases the Effective Juvenile Habitat concept may be more useful.
The species is known to grow to a maximum size of 51 cm and around 1.25 kg weight. [ 6 ] The fin anatomy is highly useful for identification purposes, with the species having 11 spines in the first dorsal fin , with one spine and 16 or 18 soft rays on the second dorsal fin.
Juvenile survival is dependent on very high quality water conditions. [7] [10] Feeding is an important component of the rearing process. Although many species are able to grow on maternal reserves alone (lecithotrophy), most commercially produced species require feeding to optimise survival, growth, yield and juvenile quality.
Algae have high levels of proteins, a high energetic value, along with a high yield, making it preferable to the stoplight parrotfish. As facultative corallivores, adult fish will occasionally feed on living corals (mainly Montastrea annularis). In healthy coral reef environments, the detriment of coral-feeding by parrotfish tends to be offset ...
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The ide is a rather plump, sturdily built fish with a deep body, although not especially so. The peduncle of the caudal fin is thick. When they are small, ide have dark backs and silvery sides, but older fish develop a golden sheen along the flanks. At all ages, the eye is yellow and the pectoral fin and anal fin are reddish in colour. [7]