วันศุกร์ที่ 1 พฤษภาคม พ.ศ. 2552

Big-game fishing

Big-game fishing, often referred to as offshore sportfishing, offshore gamefishing, or blue-water fishing is a form of recreational fishing, targeting large fish renowned for their sporting qualities, such as tuna and marlin.




Marlin


History
Big-game fishing started as a sport after the invention of the motorized boat. In 1898, Dr. Charles Frederick Holder, a marine biologist and early conservationist, virtually invented this sport and went on to publish many articles and books on the subject noted for their combination of accurate scientific detail with exciting narratives.

Big-game species
The billfish (broadbill swordfish, marlin and sailfish), larger tunas (bluefin, yellowfin, and bigeye) and sharks (mako, great white, tiger, hammerhead and other large species) are the main species recognized as big-game fish, with many anglers also considering the Atlantic tarpon a big-game species.
Smaller game fish, such as dolphinfish, wahoo, smaller tuna species such as albacore and skipjack tuna, and barracuda, are commonly caught as by-catch or for bait.

Locations
Historically most of the locations where the sport was developed, such as Avalon, California; Florida; Bimini in the Bahamas; Cairns, Australia; northern New Zealand; Wedgeport in Nova Scotia and Kona in Hawaii, benefited from the presence of large numbers of gamefish relatively close to shore, within range of the boats of that era.
As the vessels used for sportfishing became larger, faster, longer-ranged and more seaworthy, big-game species are now pursued on grounds ranging from 60 or 70 miles' distance from port, such as the submarine canyons of the United States continental shelf, to hundreds of miles as in the case of the San Diego long range fishery, where large live-aboard vessels range far out into the Pacific searching for tuna schools.
Today big-game fishing is carried out from ports in tropical and temperate coasts practically worldwide.
North America
The United States has the world's largest saltwater fishing industry and along the entire length of the East Coast, from Key West to the Gulf of Maine, big-game anglers pursue a variety of tropical and temperate sportfish ranging from sailfish and dolphinfish in the Florida Keys to giant bluefin tuna in Massachusetts and in Canadian waters. The West Coast lacks the influence of the warm Gulf Stream current and most big game species are mainly confined to California, a birthplace of the sport. Some of the same species that were fished for by the pioneers of the sport - Pacific bluefin tuna, broadbill swordfish and striped marlin - are still fished for today.
Latin and South America
Billfish and tuna are pursued in almost all the Latin American coastal nations, many of which are renowned for the excellence of their fishing. Mexico, Panama, Costa Rica, Venezuela, Ecuador and Guatemala have the largest fleets of sport fishing boats.
Land-based game fishing
In some areas big-game species can be caught by land-based anglers, with the rock platforms of Jervis Bay in New South Wales, Australia being probably the most well-known. Black marlin of up to 200 lbs have been caught here by anglers floating out baits on balloons.

Boats
Big-game fishing requires a boat of sufficient seaworthiness and range to transport the crew to the fishing grounds and back. Boats that fit these requirements may be as small as the 18 to 21-foot trailerable boats commonly used along the Australian coast, in New Zealand and on the lee coasts of the Hawaiian Islands where they are known as the "mosquito fleet". At the other extreme the 100-foot and larger vessels of the San Diego long range fleet and similar, although less refined "party boats" operating from New England, transport 25, 30 or more anglers in search of yellowfin, bluefin and bigeye tuna.
The cost of a suitable boat, electronics, tackle and the operating costs (fuels and other consumables, insurance, mooring fees and maintenance) can be very substantial. Consequently, many big-game anglers prefer to use charter services where they hire the use of a boat and equipment, and the fish-finding expertise of a captain, in preference to maintaining their own. Either way, big-game fishing can be an extremely expensive pursuit, and one in which the wealthy have tended to feature prominently.
The classic sport fisherman
Most of the features of the classic sport fisherman were gradually developed in the 1920s and 1930s as existing motor cruisers and commercial fishing vessels were adapted for fishing with outriggers, fighting chairs and other ancillaries such as bait boxes and flybridge helm stations. These boats, though crude by modern standards, scored many pioneering big game catches of huge bluefin tuna, broadbill swordfish and marlin. Through the 1930s and 1940s sportfishermen in Florida, amongst them John Rybovich and Ernest Hemingway, continued to innovate and refine, and in 1946 the Rybovich yard launched the Miss Chevy II, a 34-footer that crystallized all the innovations that had gone before into a design whose features - raised foredeck, flybridge controls and roomy cockpit - are still closely followed by today's leading sportfish builders. The need for greater range and speed as anglers sought gamefish further and further offshore resulted in the development of bigger boats powered by larger engines, but the basic layout of a dedicated big game fishing vessel has remained largely the same since the late 1940s.
Smaller sportfishing boats
The development of outboard power opened up many big game fishing grounds to smaller craft in the 18 to 25 foot range.
San Diego Long Range fleet and other partyboats

Electronics
Electronics technology developed for commercial fishermen has become increasingly used by recreational anglers. Fishfinders, also known as bottom machines or echo sounders, are now commonplace. Other electronics used to narrow down the search for fish may include radar, forward or side-scanning sonar, water temperature sensors and sea surface temperature imagery obtained from satellites.

Techniques

Trolling
Fish
are enticed by trolling fishing lures (designed to resemble squid or other baitfish) or baits behind the boat. Multiple lines are often used. Outriggers were designed to spread the lines more widely.

Chumming/chunking
Chumming, or chunking, is the process of throwing pieces of bait fish overboard to attract larger game fish. This is called Berley in Australia.

Fighting the fish
Once a fish is properly hooked on a line, a somewhat tricky task as often initial nibbles only partly hook the fish, one of the fishermen attempts to reel it in. The captain assists by maneuvering the boat so that the fish remains astern (behind the boat), while other members of the crew race to reel in the other lines so as to avoid tangling with the angler reeling in the fish.
Most of the time, the fishing line used for sport fishing has a breaking strain less than the maximum force the fish can apply to the line. The fishing reels therefore have sophisticated drag mechanisms which allow the line to escape if the fish pulls on it, but keep the specified tension on the line. When hooked, most fish will circulate in different directions, and when they are not pulling away from the boat the fisherman can take the opportunity to reel in some of the line. Eventually, if the fish tires and has not broken the line, they will be reeled in; however, the challenge does not end there. Hauling a heavy, powerful, and still very much alive fish on board the boat represents a considerable challenge, unless the fish is tagged and released. Strategies include: gaffing, pulling it in with ones hands, and if it is a smallish game fish, a net
The fish can be fought with or without a game-chair. With a game chair, the angler sits in a specially-designed chair at the stern of the boat, and places the butt of the rod into a gimbaled mount. Most rods used in this manner are quite long. The older and more classic models had straight rod butts. More contemporary models have bent rod butts, which give a more convenient angle for fighting the fish when the rod is placed in the mount. With large fish, this can still represent a considerable challenge, but "stand-up" game fishing, without the assistance of a chair and with the seat mount replaced by a harness, requires a good deal of strength and endurance, as well as body mass.

References
Combs, Trey (1996) Bluewater Fly Fishing. The Lyons Press. ISBN 978-1558213319
Goadby, Peter and Holt, Henry (1972) Big Fish and Blue Water; Gamefishing in the Pacific. Henry Holt & Co. ISBN 978-0030912283 (good record of the sport before tag-and-release)
Mansell,Patrick and Hammond, Paul (2005) Living Legends of Big Game Fishing. Bimini Twist Adventures. ISBN-13: 978-0972856478
Reiger, George (1999) Profiles in Saltwater Angling : A History of the Sport - Its People and Places, Tackle and Techniques. Down East Books. ISBN 978-0892724499
Rivkin, Mike (2006) Big-Game Fishing Headquarters: A History of the IGFA. IGFA Press. ISBN 978-0935217506
History of game fishing

See also
Swordfish
Marlin fishing
Bass fishing
Bluefish
American shad

วันพฤหัสบดีที่ 30 เมษายน พ.ศ. 2552

Soft plastic lure





Plastic worm
Soft plastic lures are any of a range of plastic-based fishing fishing lures, termed so because of their soft, flexible rubber texture. Designed to imitate fish or other natural aquatic food sources, their realistic texture and versatility, combined with simple and economical production has led them to become a standard article of modern fishing tackle. Soft plastics are available in a large range of colours, sizes and particularly shapes.







History

A typical twister worm or twister tail
Soft plastics found their origins in the late 1950s and early 1960s, with small worms and grubs being moulded from hard rubber. The stiff rubber used, as well as the basic shapes produced, did not allow the flexible action and effectiveness of modern soft plastics to be observed. In 1972, lure manufacturer Mister Twister patented the Curly Tail concept, utilising the flexibility of silicone-based plastic to create a rubber lure with a more lifelike action and vastly improved fish-catching effectiveness. By the early to mid 1980s, high sales volumes of Mister Twister lures prompted many new entrants into the market, with competition soon leading to a broad and diverse selection of soft plastic lures being made available in a range of shapes, colours and sizes.





Uses
The Carolina rig. Various soft plastic fishing rigs and methods have evolved through anglers targeting specific fish species.
The diversity of soft plastic lures has enabled them to be used in many configurations, rigs and with various techniques. The original, and still most commonly seen use of soft plastics is as a simple lure, using a weighted hook known as a jighead. The hook of the jighead is threaded through the lure so that only the gape of the hook, and the eye, are exposed. Methods vary according to the shape of the plastic used, however is it most often cast and retrieved with short, sharp jerky motions applied by the angler through flicking the fishing rod tip. Experienced soft plastic anglers attempt to emulate the natural movement of the animal the soft plastic imitates, such as a prawn, baitfish or crawdad.
Soft plastics are also trolled and jigged in the same method as metal or hardbodied lures, and used as artificial baits in classic real-bait rigs. The many rigs, techniques and uses of soft plastic lures are as varied as the designs, colours and sizes they are available in. Specialised techniques and rigging methods have evolved from anglers targeting specific fish species or in particular areas, such as the Texas rig and Carolina rig.


Modern Variants
Today, soft plastic lures take on many forms and hybrids. Hardbody hybrid lures, with a solid plastic front half and soft plastic tail for lifelike action and appearance, are now common. These hybrids often use treble hooks, diving bibs and other features once restricted to hardbody lures. Concern over the instance of non-biodegradable plastics being lost in fragile water systems has prompted the creation of organic, biodegradable lures that retain the flexible, rubbery texture and action of traditional polymer soft plastic lures by tackle manufacturer Berkley. These new baits are based on different polymers, namely polyvinyl alcohol (PVOH), instead of the more usual polyvinyl chloride (PVC). There is much controversy in the angling community regarding the true nature of this new form of organic soft plastic, which has led to the use of such lures being prohibited in some lure-only angling competitions. However since PVOH is still a synthetic polymer, which at the grades used in the Berkley lures only dissolve in water temperatures above 60°C, claims of biodegradability of this sort of lure are questionable.

Plug (fishing)

Plugs are a popular type of hard-bodied fishing lure. They are widely known by a number of other names depending on the country and region. Such names include crankbait, wobbler, minnow, shallow-diver and deep-diver. The term minnow is usually used for long, slender, lures that imitate baitfish, while the term plug is usually used for shorter, deeper-bodied lures which imitate deeper-bodied fish, frogs and other prey. Shallow-diver and deep-diver refer to the diving capabilities of the lure, which depends on the size of the lip and lure buoyancy.







History

The concept of an attractant tied to the end of a line to entice fish goes back to prehistoric peoples, but the modern concept of the plug lure is attributed to James Heddon, a beekeeper from Dowagiac, Michigan, who was whittling a piece of wood one day in the late 19th century while relaxing alongside a millpond. When he rose to leave, he tossed the carved scrap of wood into the pond, and a large bass struck at it as it wobbled down through the water. Intrigued by this, Heddon began experimenting and perfected a design he dubbed the "Lucky 13" — a plug that is still sold today. By the early 20th century, many companies were in the business of designing and selling plug lures.

Construction
The construction of typical plug is:
•A solid or hollow body made out of light weight wood such as balsa or plastic, sometimes separated into two pieces joined by a small flexible link to enhance the impression of a fish whipping its tail fin.
•A thin sheet metal or plastic lip attached to the front of the body, sometimes adjustable to change the diving ability and wobbling movements of the lure.
•Two, or occasionally three, treble hooks.
•An eyelet for attaching the fishing line.

Action
Classic plugs float on surface or suspend in the water but simultaneously dive under the surface of the water and swim with a side-to-side wobbling movement (hence the alternative name wobbler) upon retrieval. Plugs can dive to either a very shallow depth due a small lip, or to a moderately deep depth (i.e. several metres) due to a large lip. Sometimes plugs are named after their diving ability, e.g. "deep-diver" or "shallow-diver". Plugs can also be designed to hover (neutral buoyancy), sink slowly or sink rapidly. Some have a small metal ball inside to "rattle" when retrieved. They can be finished in a wide variety of colors and color patterns, or printed with very lifelike fish, frog and crayfish patterns.
Other lures are sometimes generically called plugs or wobblers. These include lures that swim over the surface of the water when they are retrieved due to a cup or dish attached to the front of lure (although these are more accurately described as surface lures), and lures that have no built-in action at all — lacking any lip, cup or dish — and are designed to let the fisherman create the action by his own manipulations of the rod and line (although these are more accurately described as stick baits).

Size
Plugs range in size from around an inch (~3 cm) to around 8 inches (~20 cm). Plugs in the 2–3 inch (~5–7 cm) size range are most commonly used however. As a general rule large plugs are used for large fish, and small plugs for small fish. Fishermen casting for very small fish such as crappie will use very small plugs, and anglers fishing for large fish such muskellunge or Murray cod will use extremely large plugs. But trophy-sized fish are occasionally caught on very small plugs, and fingerling perch will sometimes strike — and hook themselves — on a plug as big as they are themselves.

Fishing Technique
Most plugs have their "action" built into them by design, but good fishermen give nuance to the plug's action in many ways, such as varying the speed of the retrieve, occasionally "twitching" the rod tip during retrieve, or even letting the plug stop completely in the water, then resuming retrieve at a very high speed. Plugs are often cast so they land next to places where fish may be hiding, such as a snag pile or an overhanging tree and worked back enticingly. A skilled fisherman can methodically explore many possible hiding places for fish by continually casting and retrieving a plug.
Theoretically, any plug design will catch fishfish will, out of curiosity, anger or territorial protection, occasionally strike at any small object moving or falling through the water. But some plugs have become famous for their high degree of effectiveness in the hands of a good fisherman, while others come and go from the market quickly when found to have limited success.

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