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The shortraker rockfish (Sebastes borealis) is an offshore, demersal species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the northern Pacific Ocean.
The females are fertilized internally and extrude the fertilised eggs in pelagic, gelatinous masses. The young fish migrate to deeper water as they mature [ 6 ] Spawning occurs between December and May along the Pacific coasts of contiguous United States and between April and May in the Gulf of Alaska .
Pacific ocean perch is a very slow-growing species, with a low rate of natural mortality (estimated at 0.06), a relatively old age at 50% maturity (10.5 years for females in the Gulf of Alaska), and a very old maximum age of 98 years in Alaska (84 years maximum age in the Gulf of Alaska). [25]
The wildlife of Alaska is both diverse and abundant. The Alaskan Peninsula provides an important habitat for fish, mammals, reptiles, and birds. At the top of the food chain are the bears. Alaska contains about 70% of the total North American brown bear population and the majority of the grizzly bears, as well as black bears and Kodiak bears.
The black rockfish is a prime target for anglers, and a reproductive rate unusually high for its slow-growing genus makes it more resistant to fishing than its cousins, such as the yelloweye rockfish, are. They are harvested in Oregon, California, Washington, British Columbia, Alaska, and the Pacific.
Sebastes miniatus, the vermilion rockfish, vermilion seaperch, red snapper, red rock cod, and rasher, [2] is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is native to the waters of the Pacific Ocean off western North America from Baja California to Alaska.
The tiger rockfish is found in the eastern Pacific Ocean off the western coast of North America from Cape Resurrectionon the Kenai Peninsula in Alaska to Point Buchon on the central coast of California. It is associated with reefs at depths between 10 and 275 m (33 and 902 ft). [1] It can be found on rock reefs and among kelp forests. [4]
Sebastes melanostictus is similar to the rougheye rockfish and both these species have eight pairs of spines on the head plus at least two infraorbital spines. [3] The dorsal fin has 12-14 spines and 12-15 soft rays while the anal fin has 3 spines and 7 or 8 soft rays. [1]