Knowra Fish hatchery Fish hatchery A facility that incubates fish eggs and raises young fish. Hatcheries supply aquaculture, stock fisheries, and support conservation or restoration programs.
Fish egg incubation : The controlled development of fertilized fish eggs until hatching. Temperature, oxygen, water flow, and egg handling shape survival during the hatchery’s earliest stage.
Aquaculture : The farming of aquatic organisms, including fish, shellfish, and aquatic plants. Hatcheries supply young fish for farms that grow them to harvest size.
Hatchery–wild interactions : Ecological and genetic interactions between hatchery-raised fish and wild populations. Released fish can compete, interbreed, or otherwise affect the populations hatcheries are intended to support.
Wild fish : Fish that live and reproduce outside deliberate human cultivation. Wild populations differ from hatchery stocks in how they are produced and exposed to selection.
Fish larva : An early fish life stage that begins at hatching and often relies on a yolk sac. Larvae need suitable conditions and, once yolk reserves decline, appropriate food.
Salmon farming : The commercial rearing of salmon, commonly in sea cages or land-based systems. Salmon farms depend on hatcheries for eggs or juveniles, including smolts prepared for seawater.
Genetic diversity : The variety of genetic differences among individuals within a population or species. Breeding practices can narrow the genetic variation represented by hatchery releases.
Pond aquaculture : Fish farming in managed ponds, where animals grow in water held within earthen or constructed basins. Ponds commonly grow fish to market size, while hatcheries specialize in eggs and early life stages.
Live feed : Living organisms cultured or collected as food for animals, especially early-stage fish. Small live prey can meet the feeding needs of larvae that cannot eat prepared diets.
Fisheries management : The regulation and stewardship of fish populations and fisheries. Managers may use hatchery fish as one tool alongside habitat protection and harvest rules.
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