![]() The name of the genus is from the Greek onkos ("hook") and rynchos ("nose"), in reference to the hooked jaws of males in the mating season (the " kype"). Walbaum's original species name, mykiss, was derived from the local Kamchatkan name used for the fish, mykizha. The species was originally named by German naturalist and taxonomist Johann Julius Walbaum in 1792 based on type specimens from the Kamchatka Peninsula in Siberia. The scientific name of the rainbow trout is Oncorhynchus mykiss. 3.3 Growth and oxidative stress on mitochondria.The steelhead is the official state fish of Washington. Some local populations of specific subspecies, or in the case of steelhead, distinct population segments, are listed as either threatened or endangered under the Endangered Species Act. Other introductions into waters previously devoid of fish or with severely depleted stocks of native fish have created sport fisheries, such as the Great Lakes and Wyoming's Firehole River. The rainbow trout is included in the list of the top 100 globally invasive species. Introduced populations may affect native species by preying on them, out-competing them, transmitting contagious diseases (such as whirling disease), or hybridizing with closely related species and subspecies, thus reducing genetic purity. Introductions to locations outside their native range in the United States, Southern Europe, Australia, New Zealand and South America have damaged native fish species. Wild-caught and hatchery-reared forms of the species have been transplanted and introduced for food or sport in at least 45 countries and every continent except Antarctica. Adult fish are distinguished by a broad reddish stripe along the lateral line, from gills to the tail, which is most vivid in breeding males. Coloration varies widely based on subspecies, forms and habitat. Freshwater forms that have been introduced into the Great Lakes and migrate into tributaries to spawn are also called steelhead.Īdult freshwater stream rainbow trout average between 0.5 and 2.5 kilograms (1 and 5 lb), while lake-dwelling and anadromous forms may reach 9 kg (20 lb). gairdneri) that usually returns to fresh water to spawn after living two to three years in the ocean. irideus) or Columbia River redband trout ( O. The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coastal rainbow trout ( O. The rainbow trout ( Oncorhynchus mykiss) is a species of trout native to cold-water tributaries of the Pacific Ocean in Asia and North America. Salmo mykiss Walbaum, 1792 Parasalmo mykiss (Walbaum, 1792) Salmo purpuratus Pallas, 1814 Salmo penshinensis Pallas, 1814 Parasalmo penshinensis (Pallas, 1814) Salmo gairdnerii Richardson, 1836 Fario gairdneri (Richardson, 1836) Oncorhynchus gairdnerii (Richardson, 1836) Salmo gairdnerii gairdnerii Richardson, 1836 Salmo rivularis Ayres, 1855 Salmo iridea Gibbons, 1855 Salmo gairdnerii irideus Gibbons, 1855 Salmo irideus Gibbons, 1855 Trutta iridea (Gibbons, 1855) Salmo truncatus Suckley, 1859 Salmo masoni Suckley, 1860 Oncorhynchus kamloops Jordan, 1892 Salmo kamloops (Jordan, 1892) Salmo rivularis kamloops (Jordan, 1892) Salmo gairdneri shasta Jordan, 1894 Salmo gilberti Jordan, 1894 Salmo nelsoni Evermann, 1908.Others load their reservoirs with as many catchable sized rainbows as possible, trying to ensure that each angler leaves with their fair share of fish.īecause of its high elevation, Lake Cuyamaca is the only lake in San Diego County that offers trout fishing 12 months out of the year.īe sure to check out our rainbow trout stocking schedule to stay up to date on when and where the trout are being stocked. Some lakes opt for quality over quantity, choosing a lesser amount of fish to be able to stock fish of trophy class. ![]() There are several sources for the lakes to choose from, and each trout hatchery offers something a little different to anglers. The warm climate in San Diego does not support trout year-round, so they are stocked in the winter months at many of the local lakes. Rainbow trout are one of San Diego’s most popular freshwater fish.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |