Alaskan king crab fishing

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Alaskan king crab fishing is carried out during the fall months in the waters off the coast of Alaska and the Aleutian Islands. The commercial harvest is performed during a very short season, and the catch is shipped worldwide. Large numbers of king crab are also caught in Russian and international waters.

In 1980, at the peak of the king crab industry, Alaskan fisheries produced up to 200,000,000 pounds (91,000,000 kg) of crab. However, by 1983, the total size of the catch had dropped by up to 90% in some places. Several theories for the precipitous drop in the crab population have been proposed, including overfishing, warmer waters, and increased fish predation. As a result the current season is very short and in the 2010 season only 24,000,000 pounds (11,000,000 kg) of red king crab were landed.

Alaskan crab fishing is very dangerous, and the fatality rate among the fishermen is about 80 times the fatality rate of the average worker. It is suggested that, on average, one crab fisherman dies weekly during the seasons.


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Types of commercially valuable king crab

In Alaska, three species of king crab are caught commercially: the red king crab (Paralithodes camtschaticus, found in Bristol Bay, Norton Sound, and the Kodiak Archipelago), blue king crab (Paralithodes platypus, St. Matthew Island and the Pribilof Islands), and golden king crab (Lithodes aequispinus, Aleutian Islands). The red king crab is the most prized of the three for its meat. A fourth variety of king crab, the scarlet king crab (Lithodes couesi), is too small and rare to be commercially viable, even though its meat is considered sweet and tasty. Specific size requirements must be met: only certain types of king crab are legal at different times of the year and only males can be kept.


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Fishing season

The most popular crab-fishing months occur between October and January. The allocated time for a season continued to shrink - at one point a red crab season was only four days long. After 2005, each boat was given a quota based on their catch from previous years and how many crabs are available to catch. The fleet went from 251 boats down to 89. Currently the seasons last from two to four weeks.


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Rationalization: derby vs. quota

After the 2005 season, the Alaskan crab industry transitioned from a derby-style season to a quota system. This transition is known as rationalization. Under the old derby style, a large number of crews competed with each other to catch crab during a restrictive time window. Under the new Individual Fishing Quota (IFQ) system, established owners have been given quotas which they can fill at a more relaxed pace. In theory, it is intended to be safer, which was the main rationale for the change in the fishing rules. The transition to the quota system was also expected to increase the value of crab, by limiting the market of available crab. An influx of foreign crab negated some of these gains during the 2006 season.

The rationalization process put many crews out of work as the owners of many small boats found their assigned quotas too small to meet operating expenses; during the first season run under the IFQ system, the fleet shrank from over 250 boats to around 89 mostly larger boats with high quotas.


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Equipment and process

Commercial fishing boats are between 12 to 75 m (39 to 246 ft) in length, are equipped with hydraulic systems to lift the catch, and are able to withstand the freezing weather of the Bering Sea. Each fishing boat sets its own sailing schedule during the crabbing season, often staying out for days or weeks at a time.

Fishermen use a box-shaped trap called a pot which consists of a steel frame covered with a nylon mesh. Each pot weighs 600-800 lb (270-360 kg) and a ship may carry 150 to 300 pots. Fish, usually herring or codfish, are placed inside as bait and then the pot is sunk to the sea floor where the king crab reside. The pots are dropped in a straight line (known as a "string") for easier retrieval. Red and blue king crabs can be found anywhere between the intertidal zone and a depth of 100 fathoms (600 ft; 180 m). Golden king crabs live in depths between 100 and 400 fathoms (180-720 m, 600-2400 ft). The location of the pot is marked on the surface by a buoy which is later used for retrieval. After allowing the pots to rest on the sea floor (typically one to two days for red and blue king crabs, longer for golden king crabs), the pots are dragged back to the surface using a hydraulic winch with a pulley on the end called a "block."

The pot is then brought on board the boat and the crew sorts the king crab. Any crab not meeting the regulation requirements are thrown back. The crabs are stored live in a holding tank until the boat reaches shore, where they are sold. If the weather becomes too cold the live crabs may freeze and burst. If they are left in the tank for too long they will harm and possibly kill each other as they can be cannibalistic. Even the rocking of the boat can cause damage to the crab, so boards are inserted in the holds to prevent excessive side-to-side movement. If a crab dies in the hold for any reason it releases toxins which can kill other crabs. If the crew fails to remove the dead crabs, they can poison the entire tank and ruin the catch.

Deckhands are paid a percentage of the profits after the owner's share is taken into account. This can range from nothing to tens of thousands of dollars, depending on the size of the harvest. The so-called 'greenhorns' (deckhands in their first season of fishing) are paid a fixed sum of money.


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Danger

Statistically, Alaskan crab fishing remains one of the most dangerous jobs in the United States. In 2006, the Bureau of Labor Statistics ranked commercial fishing as the job occupation with the highest fatality rate with 141.7 per 100,000, almost 75 percent higher than the rate for pilots, flight engineers and loggers, the next most hazardous occupations. However, Alaskan crab fishing specifically is even more dangerous with over 300 fatalities per 100,000. Over 80% of these deaths are caused by drowning or hypothermia. The fishermen are also susceptible to crippling injuries caused by working with heavy machinery and gear.


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Population decline

In 1980, at the peak of the king crab industry, Alaskan fisheries produced 200 million pounds of crab. However, by 1983 the total size of the catch had dropped to less than 10% of this size. Several theories for the precipitous drop in the crab population have been proposed including overfishing, warmer waters, and increased fish predation. The slow harvest forced many fishermen to diversify and catch snow crabs (such as bairdi (tanner) crab and snow crab) or cod. In recent years strict regulations have been enforced in order to responsibly manage the populations and allow them to rebound. The red and blue king crab population has stayed relatively low in almost all areas except Southeast Alaska since 1983, forcing many fishermen to concentrate on the golden king crab.


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Foreign fisheries

King crab caught outside the United States is currently on the list of seafood that sustainability-minded consumers should avoid; the Monterey Bay Aquarium's Seafood Watch Program lists king crab caught in the United States as a "good alternative."

The influx of crab from Russian fisheries has also created economic problems for U.S. crabbers. The amount of crab imported from Russia has increased from around 21 million pounds (9.5 million kg) in 2004 to 37.5 million pounds (17 million kg) in 2005 to more than 56 million pounds (25.45 million kg) in 2007. Much of this foreign crab is reportedly caught and imported illegally and has led to a steady decline in the price of crab from $3.55 per pound in 2003 to $3.21 in 2004, $2.74 in 2005 and $2.30 in 2007 for Aleutian golden king crab, and $5.15 per pound in 2003 to $4.70 in 2004 to $4.52 in 2005 and $4.24 in 2007 for Bristol Bay red king crab.


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In the media

Deadliest Catch is a documentary series aired by the Discovery Channel beginning in 2005. The show highlights the dangers of king crab fishing: freezing temperatures, turbulent seas, the pots that must be dragged up can weigh well over a ton when full, and, since the season is short - both because of regulations and the weather - fishermen often spend days at a time in very rough seas working long hours with little sleep.

Source of the article : Wikipedia



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