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Baffin Bay, Texas

Baffin Bay, Texas

Baffin Bay is a bay in South Texas, an inlet of the larger Laguna Madre. Located near the Gulf of Mexico, Baffin Bay forms part of the boundary between Kenedy County and Kleberg County. Baffin Bay is a popular fishing destination.

Sources

- [http://www.tsha.utexas.edu/handbook/online/articles/BB/rrb4.html Baffin Bay] in the Handbook of Texas Online Category:Geography of Texas

Headlands and bays

]] A headland is an area of land adjacent to water on three sides. A bay is the reverse, an area of water bordering land on three sides. Large headlands may also be called peninsulas, long, narrow and high headlands promontories. When headlands dramatically affect the ocean currents they are often called capes. A gulf generally occupies an area larger than a bay and may itself contain one or more bays.

Geology and geography

Headlands and bays are usually found together on the same stretch of coastline. Headlands and bays form on discordant coastlines, where bands of rock of alternating resistance run perpendicular to the coast. Bays form where weak (less resistant) rocks (such as sands and clays) are eroded, leaving bands of stronger (more resistant) rocks (such as chalk, limestone, granite) forming a headland, or peninsula. Wave refraction occurs on headlands concentrating wave energy on them, so many other landforms, such as caves, natural archs and stacks, form on headlands. Wave refraction disperses wave energy through the bay, and along with the sheltering effect of the headlands this protects bays from storms. This effect means that the waves reaching the shore in a bay are usually constructive waves, and because of this most bays feature a beach. A bay may be only metres across, or it could be hundreds of kilometres across. Sometimes bays form where movements of the earth's crust (tectonics) bring areas of land together, or move them apart. Usually these bays are referred to as seas or gulfs and not bays. "Capes and bays geography" is a derogatory term for the approach to teaching geography that requires students to learn by rote the names of large number of geographical features rather than taking a more theoretically driven approach.

List of some well-known headlands

- Africa
- Cape Agulhas in South Africa
- Cape of Good Hope in South Africa
- Cape Juby in Morocco
- Europe
- Cabo da Roca in Portugal
- Cape Arkona in Germany
- Cape Finisterre in Spain
- North Cape in Norway
- Cape Wrath in Scotland
- Asia
- Kanyakumari or Cape Comorin in Tamil Nadu, India
- Cape Engaño on the Philippines
- Indira Point in Andaman and Nicobar Islands, India
- Cape Dezhnev in Russia
- North American, Central America and the Caribbean
- Cape Canaveral in Florida, USA
- Cape Chidley in Newfoundland and Labrador/Nunavut, Canada
- Cape Cod in Massachusetts, USA
- Cape Hatteras in North Carolina, USA
- Cape Henry in Virginia, USA
- Cape Prince of Wales in Alaska, USA
- Cape Girardeau in Missouri, USA "The only inland cape in the world."
- South America
- Cape Froward in Chile
- Cape Horn in Chile
- Cape Virgenes in Argentina
- Oceania
- Cape Egmont in New Zealand
- Cape Foulwind in New Zealand
- Cape Leeuwin in Australia
- Cape Reinga in New Zealand
- Cape York in Australia
- East Cape in New Zealand
- North Cape in New Zealand
- South East Cape in Australia
- Young Nick's Head in New Zealand

List of some well-known bays

- Africa
- Gulf of Guinea
- Gulf of Sidra - coast of Tunisia and Libya
- Europe - Atlantic
- Bay of Biscay in France and Spain
- Lyme Bay off the southern coast of England
- Europe - Baltic Sea
- Gulf of Bothnia between Sweden and Finland
- Gulf of Finland between Finland and Estonia
- Bay of Gdansk between Poland and Kaliningrad Oblast
- Bay of Puck
- Vistula Bay
- Bay of Pomerania, between Poland and Germany
- Bay of Szczecin, between Poland and Germany
- Bay of Greifswald in Germany
- Bay of Mecklenburg, between Germany and Denmark
- Bay of Lubeck, in Germany
- Bay of Kiel, between Germany and Denmark
- Riddarfjärden in Stockholm, Sweden
- Europe - Mediterranean Sea
- Adriatic Sea's Boka Kotorska in Montenegro
- Asia
- Bay of Bengal, near Bengal (India/Bangladesh)
- Bohai Gulf (China)
- Bohai Bay
- Laizhou Bay
- Liaodong Bay
- Gulf of Cambay(Khambhat), Gujarat (India)
- Gulf of Kutch, Gujarat (India)
- Manila Bay on Luzon island in the Philippines
- Persian Gulf between Saudi Arabia, Kuwait, Iraq, and Iran
- Red Sea
- Subic Bay on Luzon island in the Philippines, the site of a former US Navy base
- North American, Central America and the Caribbean
- Baffin Bay, between Canada and Greenland
- Bahía de Banderas, Mexico
- Bay of Green Bay in Wisconsin
- Bay of Pigs on Cuba
- Buzzards Bay in Massachusetts
- Cape Cod Bay in Massachusetts
- Chesapeake Bay mostly in Maryland
- Delaware Bay between Delaware and the New Jersey
- Galveston Bay in Texas
- Georgian Bay on Lake Huron
- Grand Traverse Bay in Michigan
- Gulf of California between the Baja California peninsula and the Mexican mainland.
- Gulf of Santa Catalina in California
- Gulf of Maine in Maine
- Gulf of Mexico between Mexico and the United States
- Hudson Bay, between the Canadian provinces and territories of Manitoba, Ontario, Quebec and Nunavut
- James Bay, between Ontario and Quebec, opens to Hudson Bay to the north
- Massachusetts Bay in Massachusetts
- Mobile Bay in Alabama
- Monterey Bay in California
- Narragansett Bay in Rhode Island
- Penobscot Bay in Maine
- Saginaw Bay in Michigan
- San Francisco Bay in California
- Tampa Bay in Florida
- South America
- Oceania
- Great Australian Bight off the south coast of Australia
- Botany Bay, near Sydney, Australia
- Gulf of Carpentaria, Australia
- Bay of Islands, New Zealand
- Bay of Plenty, New Zealand
- Hauraki Gulf, New Zealand
- Hawke Bay, New Zealand
- North Taranaki Bight, New Zealand
- Port Phillip Bay, Australia
- South Taranaki Bight, New Zealand
- Tasman Bay, New Zealand A couple of non-gulfs (actually straits) are:
- Gulf of Oman
- Gulf of Aden

External links

- [http://www.georesources.co.uk/leld.htm GeoResources - diagrams of headland and bay formation] Category:Bodies of water ko:만 ja:湾

Inlet

, England (Great Britain)]] Great Britain]] An inlet is a body of water, usually sea water, which has characteristics of one or more of the following:
- a bay
- a cove
- an estuary
- a firth
- a fjord
- a geo
- a sea loch
- a sea lough
- a sound The Mediterranean Sea may be seen as an inlet of the Atlantic Ocean. Atlantic Ocean] Category:Landforms Category:Bodies of water

Gulf of Mexico

The Gulf of Mexico is a major body of water bordered and nearly landlocked by North America. The gulf's eastern, north, and northwestern shores lie within the United States of America (specifically, the states of Florida, Alabama, Mississippi, Louisiana, and Texas); its southwestern and southern shores lie within Mexico (specifically, the states of Tamaulipas, Veracruz, Tabasco, Campeche, Yucatán, and Quintana Roo); on the southeast it is bordered by Cuba. It connects with the Atlantic Ocean via the Florida Straits between the U.S. and Cuba, and with the Caribbean Sea via the Yucatan Channel between Mexico and Cuba. (Note: In common usage, at least in the U.S., the term "Gulf Coast" usually refers to either the continuous portion of the coast running from Cape Sable, Florida, to Brownsville, Texas, or from Cape Sable, Florida, to the northern tip of the Yucatán Peninsula at Cabo Catoche, Quintana Roo. Both meanings exclude Cuba as well as the Florida Keys.) Florida Keys The total area of the Gulf of Mexico is approximately 615,000 mi² (1.6 million km²), the southern third of which lies within the tropics, and plunges to a depth of 2,080 fathoms (3804 m). This deepest part is Sigsbee Deep, an irregular trough more than 300 nautical miles (550 km) long, sometimes called the "Grand Canyon under the sea." The cooler water from the deep stimulates plankton growth, which attracts small fish, shrimp, and squid. [http://www.tsha.utexas.edu/handbook/online/articles/GG/rrg7.html 1] The Gulf Stream, a warm Atlantic Ocean current and one of the strongest ocean currents known, originates in the gulf. The gulf has been visited many times by powerful Atlantic hurricanes, some of which have caused extensive human death and other destruction (see 2005's Hurricane Katrina, for example). Tidal ranges are extremely small in the Gulf of Mexico due to the narrow connection with the ocean – much like the Mediterranean. The Bay of Campeche in Mexico constitutes a major arm of the Gulf of Mexico. Additionally, the gulf's shoreline is fringed by numerous bays and smaller inlets. A number of rivers empty into the gulf, most notably the Mississippi River. The land that forms the gulf's coast, including many long, narrow barrier islands, is almost uniformly low-lying and is characterized by marshes and swamps as well as stretches of sandy beach. The continental shelf is quite wide at most points along the coast. The shelf is exploited for its oil by means of offshore drilling rigs, most of which are situated in the western gulf. Another important commercial activity is fishing; major catches include various fishes as well as shrimp and crabs, with oysters being harvested on a large scale from many of the bays and sounds. Other important industries along the coast include shipping, petrochemical processing and storage, paper manufacture, and tourism. Coastal cities of note include Tampa, St. Petersburg, Pensacola, Mobile, New Orleans, Beaumont, and Houston (all in the U.S.), Tampico, Tuxpam, Veracruz and Mérida (in Mexico), and Havana (in Cuba). The gulf's coastal areas were first settled by Native American groups, including those representing several of the early advanced cultures of Mexico. During the period of European exploration and colonization the entire region became a theatre of contention between the Spanish, French and English. The present-day culture of the coastal region is primarily Spanish-American (Mexico, Cuba) and Anglo-American (U.S.). English A point of interest about the Gulf is that 65 million years ago, the Chicxulub crater was formed when a large meteorite hit the earth. It is hypothesized that this impact was the asteroid that caused the extinction of the dinosaurs. [http://web.ukonline.co.uk/a.buckley/dino.htm]

Pollution

Because of the ever increasing amount of nitrogen and phosphates dissolved in the waters of the Gulf of Mexico, pollution has more than doubled since 1950. Current estimates suggest that three times as much nitrogen is being carried into the Gulf today compared with levels 30 years ago or at any time in history. Blooms of photosynthesizers die and sink, and the processes of their decay exhausts the available supplies of oxygen dissolved in the water. Every summer there is now an area south of the Louisiana coastline, larger than the U.S. state of Massachusetts at over 7,000 mi² (18,000 km²) that is hypoxic. These waters do not carry enough oxygen to sustain marine life. This annually enlarging "dead zone" is a major threat to the fishing industry and to public health. Also, there are frequent "red tide" algae blooms that kill fish and marine mammals and cause respiratory problems in humans and some domestic animals when the blooms reach close to shore. This has especially been plaguing the southwest Florida coast, from the Keys to north of Pasco County, Florida.

External links

- [http://www.epa.gov/water/yearofcleanwater/docs/Hypoxia_Factsheet.pdf EPA factsheet on hypoxia]
- [http://www.ncat.org/nutrients/hypoxia/hypoxia.html Gulf of Mexico hypoxia] Mexico ko:멕시코 만 ja:メキシコ湾

Kleberg County, Texas

Kleberg County is a county located in the state of Texas. As of 2000, the population is 31,549. Its county seat is Kingsville ⁶. The county is named for Robert Justus Kleberg, an early settler.

Image:Map of Texas highlighting Kleberg County.png

Geography

According to the U.S. Census Bureau, the county has a total area of 2,824 km² (1,090 mi²). 2,256 km² (871 mi²) of it is land and 568 km² (219 mi²) of it is water. The total area is 20.12% water.

Adjacent counties

- Nueces County (north)
- Gulf of Mexico (east)
- Kenedy County (south)
- Brooks County (southwest)
- Jim Wells County (west)

Demographics

As of the census ² of 2000, there are 31,549 people, 10,896 households, and 7,681 families residing in the county. The population density is 14/km² (36/mi²). There are 12,743 housing units at an average density of 6/km² (15/mi²). The racial makeup of the county is 71.87% White, 3.70% Black or African American, 0.61% Native American, 1.47% Asian, 0.10% Pacific Islander, 19.00% from other races, and 3.25% from two or more races. 65.41% of the population are Hispanic or Latino of any race. There are 10,896 households out of which 34.90% have children under the age of 18 living with them, 52.10% are married couples living together, 13.90% have a female householder with no husband present, and 29.50% are non-families. 22.30% of all households are made up of individuals and 7.60% have someone living alone who is 65 years of age or older. The average household size is 2.78 and the average family size is 3.30. In the county, the population is spread out with 27.30% under the age of 18, 15.70% from 18 to 24, 27.40% from 25 to 44, 19.00% from 45 to 64, and 10.60% who are 65 years of age or older. The median age is 29 years. For every 100 females there are 101.00 males. For every 100 females age 18 and over, there are 98.50 males. The median income for a household in the county is $29,313, and the median income for a family is $33,055. Males have a median income of $31,179 versus $19,494 for females. The per capita income for the county is $13,542. 26.70% of the population and 21.20% of families are below the poverty line. Out of the total population, 35.50% of those under the age of 18 and 15.60% of those 65 and older are living below the poverty line.

Cities and towns

- Corpus Christi
- Kingsville

External links

- [http://www.co.kleberg.tx.us/ Kleberg County government’s website]
- [http://www.tsha.utexas.edu/handbook/online/articles/view/KK/hck10.html Kleberg County in Handbook of Texas Online] at the University of Texas Category:Texas counties

Fishing

Fishing is the activity of hunting for fish. By extension, the term fishing is also applied to hunting for other aquatic animals such as various types of shellfish as well as squid, octopus, turtles, frogs and some edible marine invertebrates. The term fishing is usually not applied to the hunting of aquatic mammals such as whales. Fishing is an ancient and worldwide practice with many techniques and traditions, and it has been transformed by modern technological developments.

Fishing in antiquity

Origins

whales Fishing is a very ancient practice that dates back at least to the Mesolithic period which began about 10,000 years ago. We know from archaeological features such as shell middens [http://www.york.ac.uk/depts/arch/middens/index.htm], discarded fish bones and cave paintings that sea foods were important and consumed in significant quantities. During this time, most people lived a hunter-gather life style and were, of necessity, constantly on the move. However, where there are a few early examples of permanent settlements (though not necessarily permanently occupied) such as those at Lepenski Vir, they are almost always associated with fishing as a major source of food. The neolithic culture and technology spread worldwide between about 8,000 and 4,000 years ago. With the new technologies of farming and pottery came the basic forms of most fishing methods known today. Fishing may even pre-date the development of modern humans. There is a controversial theory called the aquatic ape hypothesis which proposes that the ancestors of modern humans went through one or more periods of time living in a semi-aquatic setting and that they gathered most of their food from shallow coastal or other waters before their descendants returned to a more land-based existence.

Ancient archaeology

Ancient representations

aquatic ape hypothesis The ancient river Nile was full of fish; fresh and dried fish were a staple food for much of the population. The Egyptians invented various implements and methods for fishing and these are clearly illustrated in tomb scenes, drawings, and papyrus documents. Simple reed boats served for fishing. Woven nets, weir baskets made from willow branches, harpoons and hook and line (the hooks having a length of between eight millimetres and eighteen centimetres) were all being used. By the 12th dynasty, metal hooks with barbs were being used. As is fairly common today, the fish were clubbed to death after capture. Nile perch, catfish and eels were among the most important fish. Some representations hint at fishing being pursued as a pastime. Fishing scenes are rarely represented in ancient Greek culture, a reflection of the low social status of fishing. There is a wine cup, dating from 510–500 BC, that shows a boy crouched on a rock with a fishing-rod in his right hand and a basket in his left. In the water below, a rounded object of the same material with an opening on the top. This has been identified as a fish-cage used for keeping live fish, or as a fish-trap. It is clearly not a net. This object is currently in the Museum of Fine Arts, Boston. [http://www.mfa.org/collections/search_art.asp?recview=true&id=153702&coll_keywords=fishing&coll_accession=&coll_name=&coll_artist=&coll_place=&coll_medium=&coll_culture=&coll_classification=&coll_credit=&coll_provenance=&coll_location=&coll_has_images=&coll_on_view=&coll_sort=0&coll_sort_order=0&coll_package=0&coll_start=71 Image:Ancient angler] ancient Greek Pictorial evidence of Roman fishing comes from mosaics which show fishing from boats with rod and line as well as nets. Various species such as conger, lobster, sea urchin, octopus and cuttlefish are illustrated. [http://museum.agropolis.fr/english/pages/expos/aliments/poissons/images/mosaique.htm Image of Roman mosaic]. In a parody of fishing, a type of gladiator called retiarius was armed with a trident and a casting-net. He would fight against the murmillo, who carried a short sword and a helmet with the image of a fish on the front. The Greco-Roman sea god Neptune is depicted as wielding a fishing trident.

Ancient literature

There are numerous references to fishing in ancient literature; in most cases, however, the descriptions of nets and fishing-gear do not go into detail, and the equipment is described in general terms. An early example from the Bible in Job 41:7: Canst thou fill his skin with barbed irons? or his head with fish spears? [http://bible.tmtm.com/wiki/Job_Chapter_41] The Greek historian Polybius ((ca 203 BC-120 BC), in his Histories, describes hunting for swordfish by using a harpoon with a barbed and detachable head. [http://www.perseus.tufts.edu/cgi-bin/ptext?lookup=Plb.+34.3] Oppian of Corycus, a Greek author wrote a major treatise on sea fishing, the Halieulica or Halieutika, composed between 177 and 180. This is the ealiest such work to have survived intact to the modern day. Oppian describes various means of fishing including the use of nets cast from boats, scoop nets held open by a hoop, spears and tridents, and various traps “which work while their masters sleep”. Oppian’s description of fishing with a “motionless” net is also very interesting: :The fishers set up very light nets of buoyant flax and wheel in a circle round about while they violently strike the surface of the sea with their oars and make a din with sweeping blow of poles. At the flashing of the swift oars and the noise the fish bound in terror and rush into the bosom of the net which stands at rest, thinking it to be a shelter: foolish fishes which, frightened by a noise, enter the gates of doom. Then the fishers on either side hasten with the ropes to draw the net ashore. From ancient representations and literature it is clear that fishing boats were typically small, lacking a mast or sail, and were only used close to the shore. In traditional Chinese history, history begins with three semi-mystical and legendary individuals who taught the Chinese the arts of civilization around 2800-2600 BC: of these Fu Hsi was reputed to be the inventor of writing, hunting, trapping, and fishing.

Fishing techniques

Hand fishing

It is possible to fish with minimal equipment by using only the hands. In the USA catching catfish in this way is known as noodling. In the British Isles, the practice of catching trout by hand is known as trout tickling; it is an art mentioned several times in the plays of Shakespeare. Trout binning is a method of fishing, possibly fictional, performed with a sledgehammer. [http://www.gutenberg.org/etext/11267] Divers can catch lobsters by hand. Pearl diving is the practice of hunting for oysters by free-diving to depths of up to 30 m. Hand-line fishing is a technique requiring a fishing line with a weight and one or more lure-like hooks.

Spear and bow fishing

Spear fishing is an ancient method of fishing and may be conducted with an ordinary spear or a specialised variant such as an eel spear ([http://www.clarelibrary.ie/eolas/claremuseum/riches_of_clare/water/eel_spear2.htm Image]) or the trident. A small trident type spear with a long handle is used in the American South and Midwest for "gigging" bullfrogs with a bright light at night, or for gigging carp and other trash fish in the shallows. Traditional spear fishing is restricted to shallow waters, but the development of the speargun has made the method much more efficient. With practice, divers are able to hold their breath for up to four minutes; of course, a diver with underwater breathing equipment can dive for much longer periods. Hunter gatherers may use the bow to kill fish in shallow water.

Fishing nets

bow All fishing nets are meshes usually formed by knotting a relatively thin thread. Modern nets are usually made of artificial polyamides like nylon, although nets of organic polyamides such as wool or silk thread were common until recently and are still used in certain areas. A small hand net held open by a hoop and possibly on the end of a long stiff handle has been known since antiquity and may be used for sweeping up fish near the water surface. Such a net used by an angler to aid in landing a captured fish is known as a landing net. In England, hand netting is the only legal way of catching eels and has been practiced for thousands of years on the River Parrett and River Severn. A casting net is circular with a weighted periphery. Sizes vary up to about 4 m diameter. The net is thrown by hand in such a manner that it speads out on the water and sinks. Fish are caught as the net is hauled back in. [http://www.nccoastalfishing.com/index.htm?casting.htm~main]. River Severn 1972]] Coracle-fishing is performed by two men, each seated in his coracle and with one hand holding the net while, with the other, he plies his paddle. When a fish is caught, each hauls up his end of the net until the two coracles are brought to touch and the fish is then secured. The Chinese fishing nets (Cheena vala) found at Kochi in India are an unusual method of fishing. Huge mechanical contrivances hold out horizontal nets of 20 m or more across. The nets are dipped into the water and raised again, but otherwise cannot be moved. A seine is a large fishing net that hangs vertically in the water by attaching weights along the bottom edge and floats along the top. Trawling is a method of fishing that involves actively pulling a fishing net through the water behind one or more boats. A gillnet catches fish which try to pass through it by snagging on the gill covers. Thus trapped, the fish can neither advance trough the net nor retreat. Ghost nets are nets that have been lost at sea. They may continue to be a menace to wildlife for many years.

Dredging

There are types of dredges used for collecting scallops or oysters from the seabed. They tend to have the form of a scoop made of chain mesh and they are towed by a fishing boat. Scallop dredging is very destructive to the seabed, and nowadays is often replaced by mariculture or by scuba diving to collect the scallops.

Fishing lines

Fish are caught with a fishing line by encouraging a fish to bite upon a fish hook or a gorge. A fishing hook will pierce the mouthparts of a fish and may be barbed to make escape less likely. A gorge is buried in the bait such that it would be swallowed end first. The the tightening of the line would fix it cross-wise in the quarry's stomach or gullet and so the capture would be assured. Fishing with a hook and line is called angling. Trolling is a technique in which a fishing lure on a line is drawn through the water. Trolling from a moving boat is a technique of big-game fishing and is used when fishing from boats to catch large open-water species such as tuna and marlin. Trolling is also a freshwater angling technique. Long-line fishing is a commercial fishing technique that uses hundreds or even thousands of baited hooks hanging from a single line.

Kite fishing

Kite fishing was invented in China and was (and is) also known to the people of New Guinea and other Pacific Islands. It is not clear whether kite fishing was communicated or of independent invention. Suitable kites may be of very simple construction. Those of Tobi Island are a large leaf stiffened by the ribs of the fronds of the coconut palm. The fishing line may be made from coconut fibre and the lure made from spiders webs. Kites can provide the boatless fishermen access to waters that would otherwise be available only to boats. Similarly, for boat owners, kites provide a way to fish in areas where it is not safe to navigate such as shallows or coral reefs where fish may be plentiful. Kites can also be used for trolling a lure through the water.

Ice fishing

See main article Ice fishing. Ice fishing is the practice of catching fish with lines and hooks through an opening in the ice on a frozen body of water. It is practiced by hunter-gatherers such as the Inuit and by sportsmen in many cold climates.

Fish traps

Traps are culturally almost universal and seem to have been independently invented many times. There are essentially two types of trap, a permanent or semi-permanent structure placed in a river or tidal area and pot-traps that are baited to attract prey and periodically lifted. Indigenous Australians were, prior to European colonisation, most populous in Australia's better-watered areas such as the Murray-Darling river system of the south-east. Here, where water levels fluctuate seasonally, indigenous people constructed ingenious, stone, fish traps. Unfortunately most have been completely or partially destroyed. The largest and best known were the Brewarrina fish traps on the Barwon River at Brewarrina in New South Wales, which fortunately are at least partly preserved [http://www.deh.gov.au/heritage/national/sites/brewarrina.html]. The Brewarinna fish traps caught huge numbers of migratory native fish as the Barwon River rose in flood and then fell. In southern Victoria, indigenous people created an elaborate systems of canals, some more than 2 km long. The purpose of these canals was the encouragement and catching of eels, a fish of short coastal rivers (as opposed to rivers of the Murray-Darling system). The eels were caught by a variety of traps including stone walls constructed across canals with a net placed across an opening in the wall. Traps at different levels in the marsh came into operation as the water level rose and fell. Somewhat similar stone wall traps were constructed by native American Pit River people in north-eastern California. [http://www.primitiveways.com/ajumawi_fish_traps.html] In medieval Europe, large fishing weir structures were constructed from wood posts and wattle fences. 'V' shaped structures in rivers could be as long as 60 m and worked by directing fish towards fish traps or nets. Such fish traps were evidently controversial in medieval England. The Magna Carta includes a clause requiring that they be removed: :All fish-weirs shall be removed from the Thames, the Medway, and throughout the whole of England, except on the sea coast. [http://www.fordham.edu/halsall/source/magnacarta.html] Basket weir fish traps were widely used in ancient times. They are shown in medieval illustrations and surviving examples have been found. Basket weirs are about 2 m long and comprise two wicker cones, one inside the other — easy to get into and hard to get out. [http://www.le.ac.uk/ulas/annualreports/ar99-00/hemington/hemington.html] Magna Carta The Wagenya people, in the Democratic Republic of Congo, build a huge system of wooden tripod across the river. These tripods are anchored on the holes naturally carved in the rock by the water current. To these tripods are anchored large baskets, which are lowered in the rapids to “sieve” the waters for fish. It is a very selective fishing, as these baskets are quite big and only large size fish are entrapped. Twice a day the adults Wagenya people pull out these baskets to check if there is any fish caught; in which case somebody will dive into the river to fetch it. Pot traps are typically used to catch crustaceans such as crabs, lobsters and crayfish. Pot traps such as the lobster trap may be constructed in various shapes, each is a mesh box designed with a convoluted entrance that makes entry much easier than exit. The pots are baited and lowered into the water and checked daily. Similar traps are used in many areas to capture bait fish.

Trained animals

bait fish In China and Japan, the practice of cormorant fishing is thought to date back some 1300 years. Fishermen use the natural fish-hunting instincts of the cormorants to catch fish, but a metal ring placed round the bird's neck prevents large, valuable fish being swallowed. The fish are instead collected by the fisherman. [http://www.city.gifu.gifu.jp/kankou/08_eng_01.html] The practice of tethering a remora, a sucking fish, to a fishing line and using the remora to capture sea turtles probably originated in the Indian Ocean. The earliest surviving records of the practice are Peter Martyr d'Anghera's 1511 accounts of the second voyage of Columbus to the New World (1494)[http://www.gutenberg.org/files/12425/12425-h/12425-h.htm]. However, these accounts are probably apocryphal, and based on earlier accounts no longer extant. Dating from the 1500s in Portugal, Portuguese Water Dogs were used by fishermen to send messages between boats, to retrieve fish and articles from the water, and to guard the fishing boats.

Toxins

Many hunter gatherer cultures use poisonous plants to stun fish so that they become easy to collect by hand. Some of these poisons paralyze the fish, others are thought to work by removing oxygen from the water. [http://tk.agron.ntu.edu.tw/Segawa1/fishing_poison.htm] Cyanides are used to capture live fish near coral reefs for the aquarium and seafood market. This illegal fishing occurs mainly in or near the Philippines, Indonesia, and the Caribbean to supply the 2 million marine aquarium owners in the world. Many fish caught in this fashion die either immediately or in shipping. Those that survive often die from shock or from massive digestive damage. The high concentrations of cyanide on reefs so harvested damages the coral polyps and has also resulted in cases of cyanide poisoning among local fishermen and their families.

Explosives

Dynamite or blast fishing, is done easily and cheaply with dynamite or homemade bombs made from locally available materials. Fish are killed by the shock from the blast and are then skimmed from the surface or collected from the bottom. The explosions indiscriminately kill large numbers of fish and other marine organisms in the vicinity and can damage or destroy the physical environment. Explosions are particularly harmful to coral reefs[http://stigmes.gr/br/brpages/articles/dinambr.htm]. Blast fishing is also illegal in many waterways around the world.

Modern fishing

Recreational fishing

homemade bombs Main article Angling Recreational fishing and the closely related (nearly synonymous) sport fishing describe fishing for pleasure or competition. Recreational fishing has conventions, rules, licensing restrictions and laws that limit the way in which fish may be caught. Typically, these prohibit the use of nets and the catching of fish with hooks not in the mouth. The most common form of recreational fishing is done with a rod, line and hooks attached to any of a wide range of lures or baits. This practice is known as angling. One method of growing popularity is kayak fishing. Kayak fisherman fish from sea kayaks in an attempt to level the playing field with fish and to further challenge their abilities. Kayaks are extremely stealthy and can allow anglers to reach areas unfishable from land or by conventional boat. In angling, it is sometimes expected or required that fish all be returned to the water (catch and release). The practice, however, is viewed by some with disapproval as they consider it unethical to inflict pain on a fish for fun or sport and not for reasons of capturing food. Anglers deny this charge, pointing out that fish commonly feed on hard and spiky prey items, and as such can be expected to have tough mouths, and also that some fish will re-take a lure they have just been hooked on, a behaviour that is unlikely if being hooked was painful. In a real sense, the suitability of catch and release is an ethical consideration and, as such, a science-based conclusion on the issue is unavailable. However, a variety of scientific studies have recorded very high survival rates (in excess of 90%) for caught and released fish, especially if the fish are carefully handled and barbless hooks and artificial lures are used. Proponents of catch and release also contend that the practice is increasingly necessary in order to conserve fish stocks in the face of burgeoning human populations, mounting fishing pressure and worsening habitat degradation. Opponents would prefer to ban or to severely restricting angling, a suggestion most anglers find unpalatable. Recreational fishermen can have profound deleterious effects on fish stocks, particularly those of large, slow growing species. The only way for growing numbers of recreational fishermen to continue fishing is to reduce their impact on fish populations. Catch and release, in combination with techniques such as strong tackle (to get fish in quickly, for release in good condition), careful handling of fish and barbless hooks (to reduce physical damage), may be useful tools in this endeavour. A recent phenomenon of recreational fishing are fishing competitions (tournaments) where fishermen compete for prizes based on the total weight of a given species of fish caught within a predetermined time. This sport evolved from local fishing contests into large competitive circuits, especially in North America. Competitors are most often professional fishermen who are supported by commercial endorsements. Big-game fishing describes fishing from boats to catch large open-water species such as tuna, sharks and marlin. Noodling and Trout tickling may be pursued as a recreation. Laws made to control recreational fishing laws frequently also attempt to control the harvest of other aquatic species, such as frogs and turtles.

Commercial fishing

turtle, north-west Scotland.]] Main article Fishing industry Commercial fishing provides a large quantity of food to many countries around the world, but those who pursue it as an industry must often pursue fish far into the ocean under adverse conditions. Commercial fishermen harvest almost all aquatic species, from tuna, cod and salmon to shrimp, krill, lobster, clams, squid and crab. Commercial fishing methods have become very efficient using large nets and sea-going processing factories. Many new restrictions are often integrated with varieties of fishing allocation schemes (quotas), and international treaties that have sought to limit the fishing effort and, sometimes, capture efficiency. Fishing methods vary according to the region, the species being fished for, and the technology available to the fishermen. A commercial fishing enterprise may vary from one man with a small boat with hand-casting nets or a few pot traps, to a huge fleet of trawlers processing tons of fish every day. Some common commercial techniques today are trawling, seining, driftnetting, handlining, longlining, gillnetting, and diving. Also see Krill fishery.

Preservation

Image:Fish Packed in Ice.jpg|Fish packed in ice. Image:Canned fish 2.JPG|Canned fish. Image:Hjell-oversikt.arj.jpeg|A fish-drying rack. Hovden in Norway. image:Kipper.JPG|Kipper: salted and smoked herring. Image:Klippfiskproduksjon.jpg|Salting of fish in factory. Ancient methods of preserving fish included drying , salting, pickling and smoking. All of these techniques are still used today but the more modern techniques of freezing and canning have taken on a large importance. See:
- Haddock: Arbroath Smokie (lightly smoked).
- Herring: kipper (salted and smoked), surströmming (fermented), rollmops (pickled), soused (salted).
- Salmon: smoked salmon, cured salmon, and gravlax (fermented).
- Cod: stockfish (air dried), lutefisk (soaked in lye). In the past, fishing vessels were restricted in range by the simple consideration that the catch must be returned to port before it spoils and becomes worthless. The development of refrigeration and freezing technologies transformed the commercial fishing industry: fishing vessels could be larger, spending more time away from port and therefore accessing fish stocks at a much greater distance. Refrigeration and freezing also allow the catch to be distributed to markets further inland, reaching customers who previously would have had access only to dried or salted sea fish. Canning, developed during the 19th century has also had a significant impact on fishing by allowing seasonal catches of fish that are possibly far from large centres of population to be exploited. For example: sardines.

Fish products

Food

Image:Fried Fish and French Fries.jpg|Fried fish & French fries (fish & chips). Image:Kräftskiva-2.jpg|Crayfish and prawns. Image:Korea style raw fish.jpg|Korean style raw fish. Image:Cooked mussels DSC09244.JPG|Cooked mussels. The flesh of many fish are primarily valued as a source of food; there are many edible species of fish as well as other sea food. Shellfish include shelled molluscs and crustaceans used as food. Shelled molluscs include the clam, mussel, oyster, winkle and scallop; some crustaceans are the shrimp, lobster, crayfish, and crab. Eggs, called roe, of various species may be eaten; roe comes from fish and certain marine invertebrates, such as sea urchins and shrimp. In some cultures, roe is considered a delicacy, for example caviar from the sturgeon. Squid and octopus are valued as food. Sea cucumber is considered a delicacy in Chinese cooking and is often served at New Year’s feasts, usually in soups. [http://www.asiafood.org/glossary_2.cfm] In some cultures, for example China, Japan, and Vietnam, certain species of jellyfish are consumed. [http://www.asiafood.org/glossary_1.cfm?alpha=J&wordid=2696&startno=1&endno=25] Fish oil is valued as a dietary supplement.

Live fish

Live fish are collected for the international live food fish trade. Some seafood restaurants keep live fish in aquaria for display or for cultural beliefs. The majority of live fish kept at seafood restaurants, however, are desired for the freshness of the seafood, being killed only immediately before being cooked. Suiting customer preference, this practice makes the seafood higher in quality and better in taste. The prevalence of cultural beliefs and consumer standards helps to drive the demand for the live food fish trade. Hong Kong, for example, is estimated to have imported in excess of 15,000 tonnes of live food fish in 2000. This brought the value of their live food fish trade industry to US$400 million as reported by the [http://marine.wri.org/pubs_content_text.cfm?ContentID=645 World Resources Institute]. Fish can also be collected in ways that do not injure them such as in a seine net or by placing an electric current into the water. Such techniques are used most often by researchers for observation and study but are also used by those who collect fish for the aquarium trade. There are several organizations devoted to improving the methods of collecting, handling, transporting, exporting and farming of wild and domesticated live food fish, as well as freshwater and marine tropical fish destined for aquaria.

Other products

Pearls and mother-of-pearl are valued for their lustre. Traditional methods of pearl hunting are now virtually extinct. Sharkskin and rayskin which are covered with, in effect, tiny teeth (dermal denticles) were used for the purposes that sandpaper currently is. These skins are also used to make leather. Sharkskin leather is used in the manufacture of hilts of traditional Japanesse swords. Sea horse, star fish, sea urchin and sea cucumber are used in traditional Chinese medicine. Tyrian purple is a pigment made from marine snails Murex brandaris and Murex trunculus. Sepia is a pigment made from the inky secretions of cuttlefish. Fish glue is made by boiling the skin, bones and swim bladders of fish. Fish glue has long been valued for its use in all manner of products from illuminated manuscripts to the Mongolian war bow. Isinglass is a substance obtained from the swim bladders of fish (especially sturgeon), it is used for the clarification of wine and beer. Fish emulsion is a fertilizer emulsion that is produced from the fluid remains of fish processed for fish oil and fish meal industrially.

Cultural references

Fishing is a widely used as a metaphor though as such it is possibly ambiguous. On the one hand, fishing with a net has nuances of gathering by honest effort. For example, in the New Testament, Jesus is reported to have said to his disciples: Follow me, and I will make you fishers of men. [http://en.wikisource.org/wiki/Bible,_English,_King_James,_Matthew#Chapter_4 Matthew 4:19]. On the other hand, fishing with bait or lure sometimes has nuances of catching by deception, possibly with an implication of greed on the part of the victim. For example, the expression "fishing expedition" (usually used to describe a line of questioning), describes a case where the questioner implies that he knows more than he actually does in order to trick the target into divulging more information than he wishes to reveal. Other examples of fishing terms that carry a negative connotation are: "fishing for compliments", "to be fooled hook, line and sinker" (to be fooled beyond merely "taking the bait"), and the internet scam of Phishing.

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