Gulf Spearfishing
Tips from Hawaiian Spearfishermen
One of the best tricks a spearfisherman can take advantage of is a fish's curiosity. Fish see their world with their eyes and with vibrations picked up by their lateral line. Experienced spearfishermen take advantage of this by moving very slowly in the water, and by using weights to carry them to the bottom rather than kicking of fins to minimize vibration.Once on the bottom or in sight of a fish a spearfisherman will remain perfectly still, and lack of vibration in the water will usually cause the fish to come within spear range to investigate. Experienced shore spearfishermen will travel along the shoreline and prepare for an entrance to the water and enter and go straight to the bottom for as long as they can hold their breath.
Any large fish in the area will usually come to investigate the appearance and then disappearance of something, as no picture is available to their lateral line of a non moving object. Any rocks or other objects on the bottom that the spearfisherman can get close to will further disguise his appearance and warrant closer investigation by fish within 40 yards. Exiting the water and moving 40 yards down the shore usually produces another shot at a big one.
Experienced divers will carry several small pieces of coral or shells and when a fish is reluctant to come into spear range, rubbing or clicking of these usually draws them closer. Throwing up sand also will bring a fish closer and helps to camouflage the diver. Contact with coral should be avoided as this may damage the reef. Blue water divers will float on the surface 100 yards from their boat and continue to rap a dive knife or a softer object against their spear gun until a big one comes to investigate.
In areas where many holes are available for a fish to hide in, a strong swimmer can clip his gun to his belt, and force a fish into a hole by swimming full speed and slapping his cupped hands on the surface with each stroke. Another shoreline technique for the big ones is to spear fish that are favorite prey of the desired species or collect the seaweed, mussels, etc. that they eat and chum them into the area.
Some think chumming the water is dangerous as it will draw sharks, but many big predator fish travel with reef sharks, and the instances of spearfisherman being attacked is a very low percentage of the total number of shark attacks. Sharks are like dogs,: if you cower from a bad dog, it will bite you, but if you stand your ground with a big stick, you can usually back it down.
Spearfishing in areas with many sharks larger than 8 feet and of aggressive species does not require chumming as these areas are plentiful in big fish that are not used to seeing spear fisherman. Care needs to be taken in these areas to stay out of areas where blood from a kill is in the water.
Source: Wikipedia