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Standard Weight In Fish
Standard weight in fish is the typical or expected weight at a given total length for a specific species of fish. Most standard weight equations are for freshwater fish species. Weight-length curves are developed by weighing and measuring samples of fish from the population. Methods of obtaining such samples include creel surveys, or measurements of fish caught by commercial fishermen, recreational fishermen and/or by the researchers themselves. Some scientists use cast nets, trotlines, or other means to catch many individual fish at once for measurement. To determine a standard weight equation, several data sets or weight-length relationships representing a species across its range are used. As fish grow in length, they increase in weight. The relationship between weight and length is not linear. The relationship between length (''L'') and weight (''W'') can be expressed as: :W = aL^b\!\, When the equation is for standard weight, the standard weight for a given length is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Weight Largemouth Bass Burbot
Standard may refer to: Symbols * Colours, standards and guidons, kinds of military signs * Standard (emblem), a type of a large symbol or emblem used for identification Norms, conventions or requirements * Standard (metrology), an object that bears a defined relationship to a unit of measure used for calibration of measuring devices * Standard (timber unit), an obsolete measure of timber used in trade * Breed standard (also called bench standard), in animal fancy and animal husbandry * BioCompute Standard, a standard for next generation sequencing * ''De facto'' standard, product or system with market dominance * Gold standard, a monetary system based on gold; also used metaphorically for the best of several options, against which the others are measured * Internet Standard, a specification ratified as an open standard by the Internet Engineering Task Force * Learning standards, standards applied to education content * Standard displacement, a naval term describing the weig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lutjanus Campechanus
The northern red snapper (''Lutjanus campechanus'') is a species of marine ray-finned fish, a snapper belonging to the family Lutjanidae. It is native to the western Atlantic Ocean, the Caribbean Sea, and the Gulf of Mexico, where it inhabits environments associated with reefs. This species is commercially important and is also sought-after as a game fish. Taxonomy The northern red snapper was first formally described in 1860 as ''Mesoprion campechanus'' by the Cuban zoologist Felipe Poey with the type locality given as Campeche in Mexico. The specific name reflects the type locality. Characteristics The northern red snapper's body is very similar in shape to other snappers, such as the mangrove snapper, mutton snapper, lane snapper, and dog snapper. All feature a sloped profile, medium-to-large scales, a spiny dorsal fin, and a laterally compressed body. Northern red snapper have short, sharp, needle-like teeth, but they lack the prominent upper canine teeth found on th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Harvested Aquatic Animals By Weight
This is a list of aquatic animals that are Commercial fishing, harvested commercially in the greatest amounts, listed in order of tonnage per year (2012) by the Food and Agriculture Organization. Species listed here have an annual tonnage in excess of 160,000 tonnes. This table includes mainly food fish species, but also listed are crustaceans (crabs and shrimps), cephalopods (squids and cuttlefishs), bivalves, and a reptile (softshell turtle). Note that ''Oreochromis niloticus'' and ''Penaeus monodon'' appear twice, because substantial amounts are harvested from the wild as well as being extensively raised through aquaculture. Summary The 70 wild species shown in this table total 41,925,250 tonnes. Other wild species total 49,410,980 for a world total of 91,336,230 tonnes of wild, captured animals. The 31 cultivated species shown in this table total 45,252,999 tonnes. Other cultivated species total 21,380,254 tonnes for a world total of 66,633,253 tonnes of animals cultivated t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spotted Seatrout
''Cynoscion nebulosus'', the spotted seatrout, also known as speckled trout, is a common estuarine fish found in the southern United States along coasts of Gulf of Mexico and the coastal Atlantic Ocean from Maryland to Florida. While most of these fish are caught on shallow, grassy flats, spotted seatrout reside in virtually any inshore waters, from the surf of outside islands to far up coastal rivers, where they often come for shelter during cold weather. Contrary to its name, the spotted seatrout is not a member of the trout family (Salmonidae), but of the drum family (Sciaenidae). It is popular for commercial and especially recreational fishing in coastal waters of the southeastern United States. Adults reach 19-37 inches in length and 3-17 pounds in weight. Distribution Spotted seatrout live in the top of the water column and are most numerous along the coasts of the southeastern states, such as Texas, Louisiana, Alabama, Mississippi, Georgia, and Florida. They are also commo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gafftopsail Catfish
The gafftopsail catfish (''Bagre marinus'') is found in the waters of the western central Atlantic Ocean, as well as the Gulf of Mexico and the Caribbean Sea. It has long, venomous spines which can cause painful wounds. It feeds on crustaceans and other fish. The male of the species fertilizes the eggs of the female, and broods them in his mouth until they hatch. The gafftopsail feeds throughout the water column. This fish is a common catch in the Southeastern US, although it may be found as far north as New York (state), New York. They are considered strong fighters by anglers. They are taken from piers, jetties, reefs, and the surf, as well as bottom fishing or flats fishing. They are caught with hard lures as well as soft plastics, cut bait, and live or dead shrimp. Some fishermen use traps for catfish, a method regulated by some states. Distribution Gafftopsail catfish live on the Atlantic, Caribbean and Gulf of Mexico coastlines from Cape Cod to Brazil. They are also found in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tiger Muskellunge
The tiger muskellunge (''Esox masquinongy × lucius'' or ''Esox lucius × masquinongy''), commonly called tiger muskie, is a carnivorous fish, and is the usually-sterile, hybrid offspring of the true muskellunge (''Esox masquinongy'') and the northern pike (''Esox lucius''). It lives in fresh water and its range extends to Canada, the Northeast, and the Midwest United States. It grows quickly; in one study, tiger muskie grew 1.5 times as fast as muskellunge. Like other Hybrid speciation, hybrid species, tiger muskie are said to have "hybrid vigor," meaning they grow faster and stronger than the parent fish, and are also less susceptible to disease. Trophy specimens weigh about . Its main diet is fish and small birds. The tiger muskie and the muskie are called the fish of 10,000 casts due to the challenge involved in catching them. Distribution The tiger muskie lives in the lakes and quiet rivers in Canada, the Great Lakes, the Upper Mississippi Valley, and the Ohio and St. Lawren ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pompano
Pompanos ( ) are marine fishes in the genus ''Trachinotus'' in the family Carangidae (better known as "jacks"). Pompano may also refer to various other, similarly shaped members of the Carangidae, or the order Perciformes. Their appearance is of deep-bodied fishes, exhibiting strong lateral compression, with a rounded face and pronounced curve to the anterior portion of their dorsal profile. Their ventral profile is noticeably less curved by comparison, while their anterior profile is straight-edged, tapering sharply to a narrow caudal peduncle. Their dorsal and anal fins are typically sickle-shaped, with very long anterior rays and a succession of much shorter rays behind, with a similarly long & curved, deeply forked tail which has a narrow base. They are typically overall silvery in color, sometimes with dark or yellowish fins, and one or a few black markings on the side of their body. They are toothless and are relatively large fish, up to about long, although most species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schoolmaster Snapper
The schoolmaster snapper (''Lutjanus apodus''), also known as the dogtooth snapper, is a species of marine ray-finned fish, a snapper belonging to the family Lutjanidae. It is found in the western Atlantic Ocean. Like other snapper species, it is a popular food fish. Taxonomy The schoolmaster snapper was first formally described in 1792 as ''Perca apoda'' by the German physician, naturalist and taxonomist Johann Julius Walbaum with the type locality given as the Bahamas. Walbaum's description was based on an illustration which omitted the fish's pectoral fins, so he gave it the specific name ''apoda'' meaning "footless". Description The schoolmaster snapper has a moderately deep body which is robust and slightly compressed with a long. pointed snout and a large mouth. One of the upper pairs of canine teeth is clearly larger than back teeth in the lower jaw and can be seen when mouth is closed. The vomerine teeth are arranged in a chevron or crescent shaped patch with a lin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Drum
The black drum (''Pogonias cromis''), also known as the drum or drummer, is a saltwater fish similar to its cousin, the red drum. It is in the genus '' Pogonias''. Though most specimens are generally found in the 5-30 lb (2–14 kg) range, the black drum is well known as the largest of all the drum family with some specimens reaching excesses of 90 lb (40 kg). The world record black drum was just over 113 lb (51 kg). They are often black and/or gray in color with juvenile fish having distinctive dark stripes over a gray body. Their teeth are rounded and they have powerful jaws capable of crushing oysters and other shellfish. It is recommended those over 15 lb (7 kg) should be released. Black drum are capable of producing tones between 100 Hz and 500 Hz when performing mating calls. Habits, distribution, and characteristics The black drum is usually found in or near brackish waters. Larger, older fish are more commonly found in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cast Net
A casting net, also called a throw net, is a net used for fishing. It is a circular net with small weights distributed around its edge. The net is cast or thrown by hand in such a manner that it spreads out while it's in the air before it sinks into the water. This technique is called net casting or net throwing. Fish are caught as the net is hauled back in.Dunbar This simple device is particularly effective for catching small bait or forage fish, and has been in use, with various modifications, for thousands of years. __TOC__ Construction and technique Contemporary cast nets have a radius which ranges from 4 to 12 feet (1.2 to 3.6 metres). Only strong people can lift the larger nets once they are filled with fish. Standard nets for recreational fishing have a four-foot hoop. Weights are usually distributed around the edge at about one pound per foot (1.5 kilograms per metre). Attached to the net is a handline, one end of which is held in the hand as the net is thrown. Whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rainbow Trout
The rainbow trout (''Oncorhynchus mykiss'') is a species of trout native to cold-water tributaries of the Pacific Ocean in Asia and North America. The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coastal rainbow trout or Columbia River redband trout that usually returns to freshwater to spawn after living two to three years in the ocean. Freshwater forms that have been introduced into the Great Lakes and migrate into tributaries to spawn are also called steelhead. Adult freshwater stream rainbow trout average between , while lake-dwelling and anadromous forms may reach . Coloration varies widely based on subspecies, forms, and habitat. 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. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paddlefish
Paddlefish (family Polyodontidae) are a family of ray-finned fish belonging to order Acipenseriformes, and one of two living groups of the order alongside sturgeons (Acipenseridae). They are distinguished from other fish by their titular elonglated rostrums, which are thought to enhance electroreception to detect prey. Paddlefish have been referred to as "primitive fish" because Acipenseriformes are amongst the earliest diverging lineages of ray-finned fish, having diverged from all other living groups over 300 million years ago. Paddlefish are almost exclusively North American and Chinese, both extant and in the fossil record. There are six known species: four extinct species known only from fossil remains (three from western North America, one from China), one extant species, the American paddlefish (''Polyodon spathula'') which is native to the Mississippi River basin in the U.S., and the Chinese paddlefish (''Psephurus gladius''), declared extinct in 2022 following a 2019 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
