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Catch-and-release
Catch and release is a practice within recreational fishing where after capture the fish is Fish hook, unhooked and returned live to the water. Originally adopted in the United Kingdom by Coarse fishing, coarse fishermen to Overfishing, preserve fish populations, it has since become a widely used technique to permit people to fish recreationally while ensuring sustainability in the face of growing human populations, mounting ecological pressure, increasingly effective fishing tackle and techniques, inadequate fishing regulations and enforcement, and habitat degradation. Between 18-20% of fish released die from injuries and stress, although the rate varies by species. Among those that survive, their injuries may significantly reduce their ability to feed and grow. During tournaments, inadequate holding and weighing procedures may further increase mortality. With deep sea fishing in particular, fish are typically unable to adjust their physiology to the Barotrauma, sudden pressur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Hatchery
A hatchery is a facility where eggs are hatched under artificial conditions, especially those of fish, poultry or even turtles. It may be used for ''ex situ'' conservation purposes, i.e. to breed rare or endangered species under controlled conditions; alternatively, it may be for economic reasons (i.e. to enhance food supplies or fishery resources). Fish hatcheries Fish hatcheries are used to cultivate and breed a large number of fish in an enclosed environment. Fish farms use hatcheries to cultivate fish to sell for food, or ornamental purposes, eliminating the need to find the fish in the wild and even providing some species outside their natural season. They raise the fish until they are ready to be eaten or sold to aquarium stores. Other hatcheries release the juvenile fish into a river, lake or the ocean to support commercial, tribal, or recreational fishing or to supplement the natural numbers of threatened or endangered species, a practice known as fish stocking. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Protected Species
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, invasive species, and climate change. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are considered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Striped Marlin
The striped marlin (''Tetrapturus audax'', also ''Kajikia audax'') is a species of marlin found globally in tropical to temperate oceans not far from the surface. It is a desirable commercial and game fish, although conservation measures are in place to restrict its commercial landings. An epipelagic predator, it hunts during the day in the top or so of the water column, often near the surface. One of its chief prey is sardines. Description The striped marlin has a torpedo-like body, dark blue or black above and silvery-white below, with an average length of , a maximum length of , and weight up to . Its first dorsal fin is tall, of the same dimension or greater than its body depth, with 42–48 ; the second is much smaller. It has around 12–20 pronounced bluish stripes on the sides of its body, which display even after death. Chromatophores, specialized pigmentation cells, contract or expand to enable the stripes to transform from blue-tinged to lavender when the fish is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Dusky Flathead
''Platycephalus fuscus'', the dusky flathead or black flathead, (literally translating from Ancient Greek as "''flat-head dusky''") is a large predatory fish and the largest member of the family (biology), family Platycephalidae. Dusky flathead are a largely Estuary, estuarine species and are found in estuaries, estuarine lakes and coastal bays on the east coast of Australia, from Cairns in Queensland to the Gippsland Lakes in Victoria, Australia, Victoria. They occur over sand, mud, gravel and seagrass and can inhabit estuarine waters up to the tidal limit. Morphology Flathead are notable for their unusual body shape, upon which their hunting strategy is based. Flathead are dorsally compressed, meaning their body is wide but flattened and very low in height. Both eyes are on the top of the flattened head, giving excellent binocular vision in order to attack overhead prey. The effect is somewhat similar to flounder. In contrast to flounder however, flathead are much more elong ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Australian Bass
The Australian bass (''Percalates novemaculeata'') is a small-to-medium-sized species of primarily freshwater (but estuarine spawning) ray-finned fish found in coastal rivers and streams along the east coast of Australia. A member of the genus ''Percalates'' from the order Centrarchiformes, the Australian bass is an important member of the native fish assemblages found in east coast river systems. It is a native predatory fishHarris JH (1985a). Diet of Australian bass, ''Macquaria novemaculeata'' (Perciformes: Percichthyidae) in the Sydney Basin. ''Australian Journal of Marine and Freshwater Research'' 36: 219–234. and an extremely popular game fish species among anglers.Bethune J (1993). 'Bethune on Bass'. Simon & Schuster Australia, East Roseville, NSW, Australia. 93 pages.Lewers D (1995). 'Fabulous bass and how to catch them'. Horwitz, St Leonards, NSW, Australia. 192 pages. The species was simply called perch in most coastal rivers where it was caught until the 1960s, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Murray Cod
The Murray cod (''Maccullochella peelii'') is a large Australian predatory freshwater fish of the genus '' Maccullochella'' in the family Percichthyidae.Dianne J. Bray & Vanessa J. Thompson (2011Murray Cod, Maccullochella peelii Fishes of Australia. Retrieved 29 August 2014 Although the species is called a cod in the vernacular, it is not related to the Northern Hemisphere marine cod ('' Gadus'') species. The Murray cod is an important part of Australia's vertebrate wildlife— as an apex predator in the Murray-Darling River system—and also significant in Australia's human culture. The Murray cod is the largest exclusively freshwater fish in Australia, and one of the largest in the world. Other common names for Murray cod include cod, greenfish, goodoo, Mary River cod, Murray perch, ponde, pondi and Queensland freshwater cod. The scientific name of Murray cod derives from an early Australian fish researcher Allan Riverstone McCulloch and the river from which the explorer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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West Yellowstone, Montana
West Yellowstone is a town in Gallatin County, Montana, United States, adjacent to Yellowstone National Park. The population was 1,272 at the 2020 census. West Yellowstone is served by Yellowstone Airport. It is part of the Bozeman, MT Micropolitan Statistical Area. West Yellowstone offers lodging, gift shops, and other services to travelers visiting nearby Yellowstone National Park. History Founded in June 1908 when the Oregon Short Line Railroad was completed, the town's name changed several times until West Yellowstone was settled upon in 1920. Train service to West Yellowstone ended in 1960. The town was incorporated in 1966. Geography According to the United States Census Bureau, the town has a total area of , all land. Climate At above sea level and nearly halfway between the equator and the North Pole, West Yellowstone experiences a subarctic climate (Köppen climate classification ''Dfc''), with cold — sometimes bitterly cold — winters and brief but generally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Don Martinez
Donald S. Martinez (1903-1955), was an American commercial fly tier, fly shop owner and fly angler. He is most noted for his development and promotion of the woolly worm fly and dry fly fishing in the Yellowstone National Park region. He operated a seasonal fly shop in West Yellowstone, Montana during the summers of 1932-1943. Pat Barnes bought the business after World War II and operated the Pat Barnes Tackle Shop until 1981. West Yellowstone, Montana Martinez was also a founder of the Izaak Walton League and is credited with introducing dry fly fishing to Yellowstone National Park in the 1930s. To Martinez has been attributed the marketing of the Woolly Worm (imitation) lure for western waters. ''Northwest Fly Fishing Magazine'' named Don Martinez to its 'Pioneers & Legends' distinction in the fall of 2004, two years before Zane Grey. Don Martinez has also been featured in the book, ''Fly Fishing Pioneers & Legends of the Northwest''. In his classic 1955 text “Matchi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Fly Fishing
Fly fishing is an angling technique that uses an ultra-lightweight lure called an artificial fly, which typically mimics small invertebrates such as flying and aquatic insects to attract and catch fish. Because the mass of the fly lure is insufficient to overcome air resistance, it cannot be launched far using conventional gears and techniques, so specialized tackles are used instead and the casting techniques are significantly different from other forms of angling. It is also very common for the angler to wear waders, carry a hand net, and stand in the water when fishing. Fly fishing primarily targets predatory fish that have significant amount of very small-sized prey in their diet, and can be done in fresh or saltwater. North Americans usually distinguish freshwater fishing between cold-water species (trout, salmon) and warm-water species (notably black bass). In Britain, where natural water temperatures vary less, the distinction is between game fishing for trout ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Lee Wulff
Lee Wulff (February 10, 1905 – April 28, 1991), born Henry Leon Wulff, was an artist, pilot, fly fisherman, author, filmmaker, outfitter and conservationist who made significant contributions to recreational fishing, especially fly fishing and the conservation of Atlantic Salmon. Early life Lee Wulff was born on February 10, 1905, in Valdez, District of Alaska, to parents Charles and Lilly Wulff of Brooklyn and Staten Island, New York, respectively. Charles Wulff left Brooklyn around 1900 to seek gold in Alaska but soon became dependent on other work and settled in Valdez. In Valdez, Lee's father was a deputy sheriff and newspaper publisher in the small frontier town. Lee's mother was a Norwegian immigrant from Staten Island who eventually traveled to Valdez to marry Charles. They had three children, Henry (Lee), Audrey and Lillian. Lee learned to fish at an early age in the rivers and saltwater surrounding Valdez. By age 10 he was learning how to fly fish with lancewood/greenh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Fish Stocks
Fish stocks are population, subpopulations of a particular species of fish, for which intrinsic parameters (growth, recruitment, mortality and fishing mortality) are traditionally regarded as the significant factors determining the Population dynamics of fisheries, stock's population dynamics, while extrinsic factors (immigration and emigration) are traditionally ignored. Stocks fished within biologically sustainable levels decreased from 90% in 1974 to 62.3% in 2021. Concepts The stock concept All species have geographic limits to their distribution, which are determined by their Physiological tolerance, tolerance to natural environment, environmental conditions, and their ability to competition, compete successfully with other species. In ocean, marine environments this may be less evident than on land because there are fewer topography, topographical boundaries, however, discontinuities still exist, produced for example by mesoscale and sub-mesoscale circulations that m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |