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While pink salmon in North America have been found as far south as north-central California, they do not reproduce in significant numbers below the Puget Sound in Washington State. They occur to the west from the Lena River in Siberia and as far south as Korea and Kyushu, Japan.
Using her tail, the female digs a trough-shaped nest, called a redd or rede (Scandinavian word for "nest"), in the gravel of the stream bed, where she deposits her eggs. As she expels the eggs, she is approached by one or more males, which fertilize them as they fall into the redd.
Three-year-old females have a lower fecundity and a poorer egg quality than 2-year-old females (Bagdovitz et al. 1986). In the Great Lakes, pink salmon move from open lake into rivers to spawn in late summer or early autumn and not all return to their natal river (Kwain and Rose 1986).
Upon emerging from the gravel, both pink and chum are already silvery smolts, and head directly to sea. Sockeye fry tend to migrate to a lake, spending 1-2 years before migrating to sea. Chinook fry usually spend less than 5 months in freshwater, while coho fry may spend over a year.
Reproduction of the Pink Salmon. The female digs a small hole in the gravel with her tail. She lays between 1,000 and 2,000 eggs per clutch, with larger females producing more eggs. After the eggs have been laid, the male fertilizes them. Mom then buries the eggs with gravel to protect them from predators.
Adults develop secondary sexual characteristics during their upstream migration (Ref. 1998), which occurs any time from June to late September, depending on location (Ref. 27547). Male develop a humpback, an enlarged head and large teeth on both jaws that form a pronounced hooked type (Ref. 59043).
Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive... In the ocean, pink salmon are bright silver fish.
Pink Salmon Reproduction and Lifespan. Though they begin life in fresh water, pink salmon fry quickly migrate to the ocean where they live most of their lives. With an intense feeding schedule, they grow more rapidly than most Pacific salmon species. They only leave their marine environment in their second year of life to spawn.
Adult pink salmon live in coastal seas and feed mostly on pelagic invertebrates. During the oceanic portion of their life cycle, these fish are primarily concerned with growing and storing energy that they will require for successful reproduction. This period lasts only a couple of years.
Pink salmon feed on small fish and crustaceans, aquatic insects, and squid. The crustaceans that Pink Salmon consume are what gives their flesh its pink color. CONSERVATION: Although Pink Salmon populations have decreased in some areas, the global population continues to remain steady. In Alaska, they are the most abundant Pacific salmon ...