|
Bycatch Reduction Device
In the fishery business, a bycatch reduction device is a tool designed to minimize unintended capture (or bycatch) of marine animals, thus reducing the adverse effects of fishing on the ecosystem. Development To minimize accidental capture of marine animals, National Oceanic and Atmospheric Administration (NOAA) fisheries developed and tested bycatch reduction devices (BRDs). These devices are openings in shrimp trawl nets that allow finfish or other unwanted aquatic animals to escape, while the target species, such as shrimp, is directed towards the tail bag or cod end of the net. The placement and design have been developed in conjunction with normal bottom trawling practices, using trawl nets outfitted with a turtle excluder device. BRDs are required in shrimp trawl nets working in the federal waters of the Gulf of Mexico and South Atlantic regions. Legal imperative Officially, National Standard 9 was added to the Magnuson-Stevens Fishery Conservation and Management Ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishery
Fishery can mean either the enterprise of raising or harvesting fish and other aquatic life; or more commonly, the site where such enterprise takes place ( a.k.a. fishing ground). Commercial fisheries include wild fisheries and fish farms, both in freshwater waterbodies (about 10% of all catch) and the oceans (about 90%). About 500 million people worldwide are economically dependent on fisheries. 171 million tonnes of fish were produced in 2016, but overfishing is an increasing problem — causing declines in some populations. Because of their economic and social importance, fisheries are governed by complex fisheries management practices and legal regimes that vary widely across countries. Historically, fisheries were treated with a " first-come, first-served " approach, but recent threats by human overfishing and environmental issues have required increased regulation of fisheries to prevent conflict and increase profitable economic activity on the fishery. Modern jurisdictio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Mammal Protection Act Of 1972
The Marine Mammal Protection Act (MMPA) was the first act of the United States Congress to call specifically for an ecosystem approach to wildlife management. Authority MMPA was signed into law on October 21, 1972, by President Richard Nixon and took effect 60 days later on December 21, 1972. It prohibits the "taking" of marine mammals, and enacts a moratorium on the import, export, and sale of any marine mammal, along with any marine mammal part or product within the United States. The Act defines "take" as "the act of hunting, killing, capture, and/or harassment of any marine mammal; or, the attempt at such." The MMPA defines harassment as "any act of pursuit, torment or annoyance which has the potential to either: a. injure a marine mammal in the wild, or b. disturb a marine mammal by causing disruption of behavioral patterns, which includes, but is not limited to, migration, breathing, nursing, breeding, feeding, or sheltering." The MMPA provides for enforcement of its pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King Mackerel
The king mackerel (''Scomberomorus cavalla'') or kingfish, is a migratory species of mackerel of the western Atlantic Ocean and Gulf of Mexico. It is an important species to both the commercial and recreational fishing industries. Description The king mackerel is a medium-sized fish, typically encountered from to , but is known to exceed . The entire body is covered with very small, hardly visible, loosely attached scales. The first (spiny) dorsal fin is entirely colorless and is normally folded back into a body groove, as are the pelvic fins. The lateral line starts high on the shoulder, dips abruptly at mid-body and then continues as a wavy horizontal line to the tail. Coloration is olive on the back, fading to silver with a rosy iridescence on the sides, fading to white on the belly. Fish under show yellowish-brown spots on the flanks, somewhat smaller than the spots of the Atlantic Spanish mackerel, ''Scomberomorus maculatus''. Its cutting-edged teeth are large, uniform ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spot Croaker
The spot (''Leiostomus xanthurus''), also known Common name, commonly as the Norfolk spot and the Virginia spot, is a species of small short-lived saltwater fish in the Family (biology), family Sciaenidae. The species inhabits estuary and coastal waters from Massachusetts to Texas, and derives its name from the prominent dark spot behind each gill. It is the monotypic taxon, only species in the genus ''Leiostomus''. Spot are frequently caught by recreational angling, anglers and are good to eat. Their diet consists largely of organic detritus, small crustaceans, and worms. Glycera (genus), Bloodworms are the ideal bait when fishing for spot. Spot are the natural prey of the following fish: striped bass, blue fish, flounder, sandbar shark, Dogfish sharks, dogfish shark, weakfish, red drum, black drum, spotted seatrout, Atlantic mackerel, king mackerel, spanish mackerel, barracuda, cobia, black sea bass, and tarpon. The list can go on for some time however these are some of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Croakers
Sciaenidae are a family of fish in the order Acanthuriformes. They are commonly called drums or croakers in reference to the repetitive throbbing or drumming sounds they make. The family consists of about 286 to 298 species in about 66 to 70 genera. Characteristics A sciaenid has a long dorsal fin reaching nearly to the tail, and a notch between the rays and spines of the dorsal, although the two parts are actually separate. Drums are somberly coloured, usually in shades of brown, with a lateral line on each side that extends to the tip of the caudal fin. The anal fin usually has two spines, while the dorsal fins are deeply notched or separate. Most species have a rounded or pointed caudal fin. The mouth is set low and is usually inferior. Their croaking mechanism involves the beating of abdominal muscles against the swim bladder. Sciaenids are found worldwide, in both fresh and salt water, and are typically benthic carnivores, feeding on invertebrates and smaller fish. They ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weakfish
The weakfish, ''Cynoscion regalis'', is a marine fish of the drum family Sciaenidae. A medium-large, slender, marine fish, it is found along the east coast of North America. The head and back of this fish are dark brown in color with a greenish tinge. The sides have a faint silvery hue with dusky specks, and the belly is white. The origin of its name is based on the weakness of the mouth muscles, which often cause a hook to tear free, allowing the fish to escape. The weakfish grows to in length and in weight. It is found along the eastern coast of North America from Nova Scotia, Canada to northern Florida, where it is fished both commercially and recreationally. Weakfish are also known by the American Indian name Squeteague. In the mid-Atlantic states, the fish is sometimes referred to by the name sea trout, though it is not related to the fishes properly called trout, which are in the family Salmonidae. The weakfish is the state fish of Delaware. Management Weakfish stoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spanish Mackerel
Scomberomorini is a tribe of ray-finned saltwater bony fishes that is commonly known as the Spanish mackerels, seerfishes or seer fish. This fish closely resembles the King Mackerel. This tribe is a subset of the mackerel family (Scombridae) – a family that it shares with three sister tribes, the tunas, mackerels, and bonitos, and the butterfly kingfish. Scomberomorini comprises 21 species across three genera. They are pelagic fish, fast swimmers and predatory in nature, that fight vigorously when caught. Seer fishes are mainly caught using hooks and lines. Taxonomy The following cladogram shows the most likely evolutionary relationships between the Spanish mackerels and the tunas, mackerels, bonitos, and the butterfly kingfish. This tribe comprises 21 species in three genera: * ''Acanthocybium'' (Gill, 1862) ** '' A. solandri'' ( Cuvier, 1832), wahoo * ''Grammatorcynus'' (Gill, 1862) ** '' G. bicarinatus'' ( Quoy & Gaimard, 1825), shark mackerel ** '' G. bilineatus'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrimp Fishery
The shrimp fishery is a major global industry, with more than 3.4 million tons caught per year, chiefly in Asia. Rates of bycatch are unusually high for shrimp fishing, with the capture of sea turtles being especially contentious. A shrimper is a fishing vessel rigged for shrimp fishing. Nomenclature The term ''shrimp'', as used by the Food and Agriculture Organization (FAO), covers all shrimp (Caridea) and prawns ( Dendrobranchiata, comprising Penaeoidea and Sergestoidea) – a group formerly known as "Natantia". Gillett (2008), p. 5. This nomenclature often differs from local use, in which the same species may be known by different names, or where different species may be known by the same name. Gillett (2008), p. 26. History Small-scale local fishery for shrimp and prawns has existed for centuries and continues to form a large proportion of the world's shrimp fisheries. Gillett (2008), p. 9. Trawling increased in scale with the introduction of otter boards, which use the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Sea Grant College Program
The National Sea Grant College Program is a program of the National Oceanic and Atmospheric Administration (NOAA) within the U.S. Department of Commerce. It is a national network of 34 university-based Sea Grant programs involved in scientific research, education, training, and extension projects geared toward the conservation and practical use of the coasts, Great Lakes, and other marine areas. The program is administered by the National Oceanic and Atmospheric Administration (NOAA) with the national office located in Silver Spring, Maryland. There are Sea Grant programs located in every coastal and Great Lakes state as well as in Puerto Rico and Guam. The program was instituted in 1966 when Congress passed the National Sea Grant College Program Act. Sea Grant programs and colleges are not to be confused with land-grant colleges (a program instituted in 1862), space-grant colleges (instituted in 1988), or sun-grant colleges (instituted in 2003), although an institution may als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Species Act
The Endangered Species Act of 1973 (ESA or "The Act"; 16 U.S.C. § 1531 et seq.) is the primary law in the United States for protecting imperiled species. Designed to protect critically imperiled species from extinction as a "consequence of economic growth and development untempered by adequate concern and conservation", the ESA was signed into law by President Richard Nixon on December 28, 1973. The Supreme Court of the United States described it as "the most comprehensive legislation for the preservation of endangered species enacted by any nation"."Tennessee Valley Authority v. Hill" 437 U.S. 153 (1978) Retrieved 24 November 2015. The purposes of the ESA are two-fold: to prevent extinction and to recover species to the point where the law's protections are not needed. It therefo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bycatch
Bycatch (or by-catch), in the fishing industry, is a fish or other marine species that is caught unintentionally while fishing for specific species or sizes of wildlife. Bycatch is either the wrong species, the wrong sex, or is undersized or juveniles of the target species. The term "bycatch" is also sometimes used for untargeted catch in other forms of animal harvesting or collecting. Non- marine species (freshwater fish not saltwater fish) that are caught (either intentionally or unintentionally) but regarded as generally "undesirable" are referred to as "rough fish" (mainly US) and " coarse fish" (mainly UK). In 1997, the Organisation for Economic Co-operation and Development (OECD) defined bycatch as "total fishing mortality, excluding that accounted directly by the retained catch of target species". Bycatch contributes to fishery decline and is a mechanism of overfishing for unintentional catch. The average annual bycatch rate of pinnipeds and cetaceans in the US from 199 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Croakers")
