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Spearfishing is an ancient method of fishing that has been used throughout the world for millennia. Early civilizations were familiar with the custom of spearing fish from rivers and streams using sharpened sticks.
Today modern spearfishing makes use of elastic powered spearguns and slings, or compressed gas pneumatic powered spearguns, to strike the hunted fish. Specialized techniques and equipment have been developed for various types of aquatic environments and target fish.
Spearfishing may be done using free-diving, snorkeling, or scuba diving techniques. Spearfishing while using scuba equipment is illegal in some countries. The use of mechanically powered spearguns is also outlawed in some countries and jurisdictions. Spearfishing is highly selective, normally uses no bait and has no by-catch.
Spearfishing with barbed poles (harpoons) was widespread in palaeolithic times. Cosquer cave in Southern France contains cave art over 16,000 years old, including drawings of seals which appear to have been harpooned.
There are references to fishing with spears in ancient literature; though, in most cases, the descriptions do not go into detail. An early example from the Bible is in Job 41:7: Canst thou fill his skin with barbed irons? or his head with fish spears?.
Greek author Oppian of Corycus 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. Oppian describes various means of fishing including the use of spears and tridents.
Copper harpoons were known to the seafaring Harappans well into antiquity. Early hunters in India include the Mincopie people, aboriginal inhabitants of India's Andaman and Nicobar islands, who have used harpoons with long cords for fishing since early times.
Spear fishing is an ancient method of fishing and may be conducted with an ordinary spear or a specialized variant such as an eel spear 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 fish in the shallows.
Traditional spear fishing is restricted to shallow waters, but the development of the speargun allows fishing in deeper waters. With practice, divers are able to hold their breath for up to four minutes and sometimes longer; of course, a diver with underwater breathing equipment can dive for much longer periods.
In the 1920s, sport spearfishing using only watertight swimming goggles became popular on the Mediterranean coast of France and Italy. This led to development of the modern diving mask, swimfin and snorkel. Modern scuba diving had its genesis in the systematic use of rebreathers by Italian sport spearfishers during the 1930s. This practice came to the attention of the Italian Navy, which developed its frogman unit, which affected World War II.
During the 1960s, attempts to have spearfishing recognized as an Olympic sport were unsuccessful. Instead, two organisations, the International Underwater Spearfishing Association (IUSA) and the International Bluewater Spearfishing Records Committee (IBSRC), list world record catches by species according to rules to ensure fair competition. Spearfishing is illegal in many bodies of water, and some locations only allow spearfishing during certain seasons.
In 2007, the Australian Bluewater Freediving Classic became the first spearfishing tournament to be accredited and was awarded 4 out of 5 stars based on environmental, social, safety and economic indicators.[broken citation]
Spearfishing has been implicated in local extinction of some species, including the Atlantic goliath grouper on the Caribbean island of Bonaire, the Nassau grouper in the barrier reef off the coast of Belize, the giant black sea bass in California, and others. On the other hand, in countries such as Australia where the sport is regulated by state fisheries, spearfishing has been found to be the most environmentally friendly form of fishing due to being highly selective, having no by-catch, causing no habitat damage, nor creating pollution or harm to protected endangered species.
Shore diving 
Shore diving is perhaps the most common form of spearfishing and simply involves entering and exiting the sea from beaches or headlands and hunting around ocean structures, usually reef, but also rocks, kelp or sand. Usually shore divers hunt at depths of 5–25 metres (16–82 ft), depending on location. In some locations in the South Pacific, divers can experience drop-offs from 5 to 40 metres (16 to 130 ft) close to the shore line. Sharks and reef fish can be abundant in these locations. In subtropical areas, sharks may be less common, but other challenges face the shore diver, such as managing entry and exit in the presence of big waves. Headlands are favored for entry because of their proximity to deeper water, but timing is important so the diver does not get pushed onto rocks by waves. Beach entry can be safer, but more difficult due the need to consistently dive through the waves until the surf line is crossed.
Shore dives produce mainly reef fish, but ocean going pelagic fish are caught from shore dives too, and can be specifically targeted.
Shore diving can be done with trigger-less spears such as pole spears or Hawaiian slings, but more commonly triggered devices such as spearguns. Speargun setups to catch and store fish include speed rigs and fish stringers.
Boat diving 
Boats, ships, kayaks, or even jetski can be used to access offshore reefs or ocean structure. Man-made structures such as oil rigs and Fish Aggregating Devices (FADs) are also fished. Sometimes a boat is necessary to access a location that is close to shore, but inaccessible by land.
Methods and gear used for boat diving are similar to shore diving or blue water hunting, depending on the target prey.
Boat diving is practiced worldwide. Hot spots include the northern islands of New Zealand (yellow tail kingfish), Gulf of Mexico oil rigs (cobia, grouper) and the Great Barrier Reef (wahoo, dogtooth tuna). The deepwater fishing grounds off Cape Point, (Cape Town, South Africa) have become popular with trophy hunting, freediving spearfishers in search of Yellowfin Tuna.
Blue water hunting 
Blue water hunting involves diving in open ocean waters for pelagic species. It involves accessing usually very deep and clear water and trolling, chumming for large pelagic fish species such as marlin, tuna, or giant trevally. Blue water hunting is often conducted in drifts; the boat driver drops divers and allow them to drift in the current for up to several kilometers before collecting them. Blue water hunters can go for hours without seeing any fish, and without any ocean structure or a visible bottom the divers can experience sensory deprivation and have difficulty determining the size of a solitary fish. One technique to overcome this is to note the size of the fish's eye in relation to its body—large specimens have a proportionally smaller eye.
The creation of the Australian Bluewater Freediving Classic in 1995 in northern New South Wales was a revolutionary way of creating interest and promotion of this format of conservative underwater hunting, and contributed to the formation of the International Bluewater Spearfishing Records Committee. The I.B.S.R.C. formed in 1996, was the first dedicated organization worldwide, created by recognized world leaders in blue-water hunting, to record and regulate the capture of pelagic species by blue-water hunters.
Notably, blue water hunters make use of breakaway rigs and large multi-band wooden guns to catch and subdue their prey. If the prey is large and still has fight left after being subdued, a second gun can provide a kill shot at a safe distance. This is acceptable to IBSRC and IUSA regulations as long as the spearfisher loads it himself in the water.
Freshwater hunting 
Many US states allow spearfishing in lakes and rivers, but nearly all of them restrict divers to shooting only rough fish such as carp, gar, bullheads, suckers, etc. A few US states do allow the taking of certain gamefish such as sunfish, crappies, striped bass, catfish and walleyes. Freshwater hunters typically have to deal with widely varying seasonal changes in water clarity due to flooding, algae blooms and lake turnover. Some especially hardy midwestern and north central SCUBA divers go spearfishing under the ice in the winter when water clarity is at its best.
In the summer the majority of freshwater spearfisherman use snorkeling gear rather than SCUBA since many of the fish they pursue are in relatively shallow water. Carp shot by freshwater spear fisherman typically end up being used as fertilizer, bait for trappers, or are occasionally donated to zoos.
Without diving 
Spearfishing with a hand held spear from land, shallow water or boat has been practised for thousands of years. The fisher must account for optical refraction at the water's surface, which makes fish appear higher in their line of sight than they are. By experience, the fisher learns to aim lower. Calm and shallow waters are favored for spearing fish from above the surface, as water clarity is of utmost importance.
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This is a list of equipment commonly used in spearfishing. Not all of it is necessary and spearfishing is often practised with minimal gear.
- see speargun.
- Pole spears, or hand spears, consist of a long shaft with point at one end and an elastic loop at the other for propulsion. They also come in a wide variety, from aluminum or titanium metal, to fiberglass or carbon fiber. Often they are screwed together from smaller pieces or able to be folded down for ease of transport.
- Hawaiian slings
- Hawaiian slings consist of an elastic band attached to a tube, through which a spear is launched.
- Wet Suit
- Wetsuits designed specifically for spearfishing are often two-piece (jacket and high waisted pants or 'long-john' style pants with shoulder straps) and are black or are fully or partially camouflage. Camouflage patterns include, blue for open ocean, green or brown for reef hunting. Commonly they have a pad on the chest to aid in loading spearguns. Sometimes they have reinforced elbows and/or knees. Often they have an "open-cell" interior, which offers superior warmth because of its very close suction fit to the skin (consequently lubrication is required to put on an open-cell wetsuit). Nylon exteriors are generally used to protect the spearo wetsuit from reefs but more delicate uncovered "smooth skin" wetsuits are sometimes used when diving from boats, because they dry quickly.
- Weight belt or weight vest
- These are used to compensate for wetsuit buoyancy and help the diver descend to depth. Rubber belts have proven to be a particular popular design for spearfishing worldwide, such that most spearfishing equipment manufacturers now offer them.
- Fins for freedive spearfishing are much longer than those used in SCUBA to aid in fast ascent. Typically a closed foot designs is used by freediving (snorkelling) spearos, usually worn with neoprene socks, while open foot designs (which allow diving boots to be worn) are more popular with SCUBA divers.
- A knife should always be carried as a safety precaution in case of the diver becoming tangled in his spear or float line. It can also be used as an iki jime or kill spike.
- Iki jime or kill spike
- In lieu of a knife, a sharpened metal spike can be used to kill the fish quickly and humanely upon capture. This action reduces interest from sharks by stopping the fish from thrashing. Iki jime is a Japanese term and is a method traditionally used by Japanese fishermen. Killing the fish quickly is believed to improve the flavor of the flesh by limiting the build up of adrenaline in the fish's muscles.
- Buoy or float
- A buoy is usually tethered to the spearfisher's speargun or directly to the spear. A buoy helps to subdue large fish. It can also assist in storing fish. But is more importantly used as a safety device to warn boat drivers there is diver in the area - usually by being large, brightly colored and flying a dive flag (the red-white "international" flag in the USA or the blue & white "alpha" flag elsewhere in the world). A typical spearo dive float will be torpedo-shaped, orange or red in colour with a volume of between 7 and 36 litres and display a dive flag on a short mast. However, other designs, such as inflatable mini-dinghy, planche (box), Tommy Botha (big game) and body-boards are also used.
- A floatline connects the buoy to the speargun. Often made from woven plastic, they are also frequently made from mono-filament encased in an airtight plastic tube, or made from stretchable bungee cord.
- Gloves are valuable to spearfishermen who desire to maintain a sense of safety or access more dangerous areas, such as those between coral, that could otherwise not be reached without use of the hands. They also aid in loading the bands on rubber powered speargun and protect the spearfisher's hands from the teeth and spines of struggling fish.
- Fish Stringer
- Usually a length of cable/cord/string/monofilament terminated by a loop (and sometimes a swivel) at one end and a large stainless steel pin/spike at the other. The pin is typically 20–30 cm long, 4-8mm diameter, with a sharp point at one end, and with the cable threaded through a hole, usually in the middle. Can alternatively be a large, shaped loop of stainless steel. Used to store speared fish on. Usually attached to the dive float or around the waist of the diver. The pin can optionally be used as an iki jime spike, to dispatch speared fish.
- Snorkel and diving mask
- Spearfishing snorkels and diving masks are similar to those used for scuba diving But when using a mask and snorkel, its is important to equalise the pressure in your ears to avoid problems.
Spearfishing is intensively managed throughout the world.
Australia allows only recreational spearfishing and generally only breath-hold free diving. State & territory governments impose numerous restrictions, demarcating Marine Protected Areas, Closed Areas, Protected Species, size/bag limits and equipment. The body principally concerned with spearfishing is the Australian Underwater Federation, Australia's peak recreational diving body. The AUF's vision for spearfishing is "Safe, Sustainable, Selective, Spearfishing". The AUF provides membership, advocacy and organises competitions.
Norway has a relatively large ratio of coastline to population, and has one of the most liberal spearfishing rules in the northern hemisphere. Spearfishing with scuba gear is widespread among recreational divers. Restrictions in Norway are limited to anadrome species, like atlantic salmon, sea trout, and lobster.
In Mexico a regular fishing permit allows spearfishing, but not electro-mechanical spearguns. Spearfishing with scuba gear is illegal and the use of power heads as well. Penalties are severe and include fines, confiscated gear and even imprisonment.
United States has different spearfishing regulations for each state. In Florida spearfishing is restricted to several hundred yards offshore in many areas and the usage of a powerhead is prohibited within state waters. Many types of fish are currently under heavy bag restrictions. In California only recreational spearfishing is allowed. California also imposes numerous restrictions, demarcating Marine Protected Areas, closed areas, protected species, size/bag limits and equipment. 
In the UK, while spearfishing is not explicitly regulated, it is instead subject to both local (typically local bye-laws) and national-level legislation relating to permitted fish species and minimum size limits. For example, it is not permitted to spearfish in the non-tidal reaches of rivers.
See also 
- Guthrie, Dale Guthrie (2005) The Nature of Paleolithic Art. Page 298. University of Chicago Press. ISBN 0-226-31126-0
- Polybius, "Fishing for Swordfish", Histories Book 34.3 (Evelyn S. Shuckburgh, translator). London, New York: Macmillan, 1889. Reprint Bloomington, 1962.
- Ray 2003, page 93
- Allchin 1975, page 106
- Edgerton 2003, page 74
- Image of an eel spear.
- Spear fishing for eels.
- Quick, D. (1970). "A History Of Closed Circuit Oxygen Underwater Breathing Apparatus". Royal Australian Navy, School of Underwater Medicine. RANSUM-1-70. Retrieved 2008-04-25.
- Recfish Australia
- Roberts, Callum. The Unnatural History of the Sea, Island Press, 2007, p. 238
- Otto Gabriel; Andres von Brandt (2005). Fish Catching Methods of the World. Blackwell Publishing. pp. 53–54. ISBN 0-85238-280-4.
- Equalising your ears when spearfishing
- 'AUF Spearfishing' home page at Australian Underwater Federation, retrieved 02/07/2012.
- Spearfishing in Norway
- CONAPESCA SAN DIEGO - Sportfishing regulations, Conapesca Mexico San Diego Office
Further reading 
- Len Jones. Len Jones' Guide to Freedive Spearfishing.
- Underwater fishing in Australia and New Zealand by Adam Smith, (2000), Mountain Ocean & Travel Publications, Narre Warren, Vic. (ISBN 0646406426)
- Spearfishing is it ecologically sustainable? A paper given at the World Recreational Fishing Conference, Darwin, Australia by Adam Smith and Seji Nakaya
- Terry Maas (1998). Bluewater Hunting & Freediving. Ventura, CA: BlueWater Freedivers. ISBN 0-9644966-3-1.