Friday 25 July, 2008

Fishing: Origins etc...

Origins:
Fishing is an ancient practice that dates back at least to the Mesolithic period which began about 10,000 years ago.[3] Archaeological features such as shell middens,[4] discarded fish bones and cave paintings show that sea foods were important for survival and consumed in significant quantities. During this period, most people lived a hunter-gather lifestyle and were, of necessity, constantly on the move. However, where there are 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 4,000 and 8,000 years ago. With the new technologies of farming and pottery came basic forms of all the main fishing methods that are still used today.

Ancient representations:
The ancient river Nile was full of fish; fresh and dried fish were a staple food for much of the population.[5] 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.[6]

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.[7] 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.
The Moche people of ancient Peru depicted fisherman in their ceramics. [8]

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?.

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.[9] 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 earliest 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.

***As stated earlier, the vast majority of our planet is under water. Many species of fish either travel long distances in their normal habits or the populations inhabit large areas. Given these facts, establishing accurate population estimates is virtually impossible. Fishing gears and efficiency of commercial harvest have increased significantly and also contribute to attaining maximum sustainable yield.

There are over 22,000 species of fish, and the United Nations Food and Agriculture Organization monitors commercial harvest of slightly over 1,100 species.
…it seems clear that the commercial fishing fleets from the western coast of South America (Chile and Peru) and Southeast Asia (China, Thailand, Vietnam, Myanmar, and Japan) harvest more fish than other parts of the planet.

From the industrial revolution to current times commercial harvesting equipment improved significantly and also contributed to declines in populations and leveling of harvest volumes. Regardless of the cause, wild populations of many fish and shellfish declined in the latter half of the twentieth century.

Fishing gears are largely unchanged from ancient times. Nets of various types are the most commonly used commercial fishing gear. The basic concept of a net, regardless of the configuration, is the same today as it was when ancient man first wove fibers together to make nets. Impaling devices such as spears and harpoons are also unchanged from ancient times. There are numerous types of traps in use, mainly for trapping crustaceans (lobsters, crabs, crayfish), and those have ancient origins. Fishing gears have become more efficient, but in subtle ways. Prior to about 1980, trawls (nets pulled behind a boat) could attain only a limited depth and were nonspecific in their catch. Significant research efforts resulted in trawls that could be fished deeper (up to 8,200 feet, or 2,500 meters) and had devices that would tend to exclude mammals or turtles. Harpoons are not routinely used in the twenty-first century, and spears have evolved to spear guns for individual fishermen. Trap materials have changed with the advent of polymers, but the basic configurations have not changed for hundreds of years. The major change that occurred is not in gears, but in the boats[crafts].

Commercial fishing boats/ crafts are capable of staying at sea for months at a time, giving fishermen the ability to fish anywhere in the world. Technological advances in engines, fuels, and boat designs, coupled with international treaties that allow foreign fishing fleets safe harbor, increased the efficiency of commercial operations. Harvested animals can be cleaned on board and frozen at –76°F (–60°C) for extended storage. Large companies evolved to more efficiently harvest fish, and those companies developed the concept of multiple fishing boats and a mother ship for processing and storing fish. It is not uncommon to find Japanese fishermen in the North Atlantic Ocean harvesting giant bluefin tuna. Fishermen also take advantage of the other forms of commercial transport, taking some of their harvest to nearby ports and consigning them to air freight companies for transport back to home bases. Frozen giant bluefin tuna are flown from New York to Tokyo regularly.

Restrictions on commercial harvest have been common since the early 1980s. As populations declined, state or federal regulatory agencies restricted harvest by establishing quotas (limited number of fishing licenses), restricting harvest volume (limitation on volume, which can be expressed per day, week, or season), or restricting gears (numbers of traps, length of nets, number of nets).

International agreements are in place that define who can fish where, seasons for fishing, and gear acceptance. Most countries claim some distance from their shores as available only to local fishermen.

Whole communities are in significant economic crisis. New industries are not readily apparent for a labor force trained in commercial fishing, processing, and distribution of fish and shellfish. Since the 1980s the fisheries have been in sharp decline, and with it a way of life. Some fishermen, with modified gears, are able to switch species.

Creative marketing techniques also opened opportunities for commercial fishermen.
—Paul B. Brown

Bibliography:
Levinton, Jeffrey S. Marine Biology: Function, Biodiversity, Ecology, 2d ed. New York: Oxford University Press, 2001.
Moyle, Peter B., and Joseph J. Cech, Jr. Fishes: An Introduction to Ichthyology, 3d ed. Upper Saddle River, N.J.: Prentice Hall, 1996.
Von Brandt, Andres. Fish Catching Methods of the World. 3d ed. Surrey, Great Britain: Fishing News Books, 1984.

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