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Ice Fishing
Ice fishing is the practice of catching fish with lines and fish hooks or spears through an opening in the ice on a frozen body of water. Ice fishers may fish in the open or in heated enclosures, some with bunks and amenities. Shelters Longer fishing expeditions can be mounted with simple structures. Larger, heated structures can make multiple day fishing trips possible. A structure with various local names, but often called an ice shanty, ice shack, fish house, shack, icehouse, bobhouse, or ice hut, is sometimes used. These are dragged or towed onto the lake using a vehicle such as a snowmobile, ATV or truck. The two most commonly used types are portable and permanent. The portable houses are often made of a heavy material that is usually watertight. The two most common types of portable houses are those with a shelter that flips behind the user when not needed, or pop up shelters with a door as the only way out. The permanent shelters are made of wood or metal and usual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishing
Fishing is the activity of trying to catch fish. Fish are often caught as wildlife from the natural environment, but may also be caught from stocked bodies of water such as ponds, canals, park wetlands and reservoirs. Fishing techniques include hand-gathering, spearing, netting, angling, shooting and trapping, as well as more destructive and often illegal techniques such as electrocution, blasting and poisoning. The term fishing broadly includes catching aquatic animals other than fish, such as crustaceans (shrimp/lobsters/ crabs), shellfish, cephalopods (octopus/squid) and echinoderms (starfish/sea urchins). The term is not normally applied to harvesting fish raised in controlled cultivations ( fish farming). Nor is it normally applied to hunting aquatic mammals, where terms like whaling and sealing are used instead. Fishing has been an important part of human culture since hunter-gatherer times, and is one of the few food production activities that ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jigging
Jigging is the practice of fishing with a jig, a type of weighted fishing lure. A jig consists of a heavy metal (typically lead) sinker with an attached fish hook that is usually obscured inside a soft lure or feather-like decorations. Jigs are intended to create a jerky, vertical "jumping" motion to attract fish, as opposed to other common lures like swimbaits, spoons and spinnerbaits, which move through the water more or less horizontally. The jig is very versatile and can be used in both salt and fresh water. Many deeper water fish species are attracted to the lure, which has made it popular among anglers for years. The jigging technique mainly involves rapid lifting motions of a fishing rod, which jerk the line exert a temporarily upward pull upon the sinking lure. When the target fish is enticed to swallow the lure, the angler then sets the hook to pierce and tether the fish in the mouth. Because the jigs are weighted, a harder-than-usual hookset is often needed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GPS Tracking Unit
A GPS tracking unit, geotracking unit, satellite tracking unit, or simply tracker is a navigation device normally on a vehicle, asset, person or animal that uses satellite navigation to determine its movement and determine its WGS84 UTM geographic position ( geotracking) to determine its location. Satellite tracking devices send special satellite signals that are processed by a receiver. Locations are stored in the tracking unit or transmitted to an Internet-connected device using the cellular network ( GSM/ GPRS/ CDMA/LTE or SMS), radio, or satellite modem embedded in the unit or WiFi work worldwide. GPS antenna size limits tracker size, often smaller than a half-dollar (diameter 30.61 mm). In 2020 tracking is a $2 billion business plus military-in the gulf war 10% or more targets used trackers. Virtually every cellphone tracks its movements. Tracks can be map displayed in real time, using GPS tracking software and devices with GPS capability. Architecture A GPS "tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shoaling And Schooling
In biology, any group of fish that stay together for social reasons are shoaling, and if the group is swimming in the same direction in a coordinated manner, they are schooling. In common usage, the terms are sometimes used rather loosely. About one quarter of fish species shoal all their lives, and about one half shoal for part of their lives. Fish derive many benefits from shoaling behaviour including defence against predators (through better predator detection and by diluting the chance of individual capture), enhanced foraging success, and higher success in finding a mate. It is also likely that fish benefit from shoal membership through increased hydrodynamic efficiency. Fish use many traits to choose shoalmates. Generally they prefer larger shoals, shoalmates of their own species, shoalmates similar in size and appearance to themselves, healthy fish, and kin (when recognized). The oddity effect posits that any shoal member that stands out in appearance will be prefe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burbot
The burbot (''Lota lota'') is the only gadiformes, gadiform (cod-like) freshwater fish. It is also known as bubbot, mariah, loche, cusk, freshwater cod, freshwater ling, freshwater cusk, the lawyer, coney-fish, lingcod, and eelpout. The species is closely related to the marine common ling and the cusk (fish), cusk. It is the monotypic, only member of the genus ''Lota''. For some time of the year, the burbot lives under ice, and it requires frigid temperatures to breed. Etymology The name burbot comes from the Latin word ''barba'', meaning beard, referring to its single chin whisker, or barbel (anatomy), barbel. Its generic and specific names, ''Lota lota'', comes from the old French ''lotte'' fish, which is also named "barbot" in Old French. Description With an appearance like a cross between a catfish and an eel, the burbot has a serpent-like body, but is easily distinguished by a single barbel on the chin. The body is elongated and laterally compressed, with a flattened hea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kakivak
A kakivak is an Inuit leister that is used for spear fishing and fishing at the short range. It is comparable to a harpoon or a trident A trident is a three- pronged spear. It is used for spear fishing and historically as a polearm. The trident is the weapon of Poseidon, or Neptune, the God of the Sea in classical mythology. The trident may occasionally be held by other marine ... in function and shape. The kakivak is notable for its tip's design, which has three prongs, the outer which have their own teeth which point at the center prong. The teeth are to hold the meat on to the main blade to stop it from falling. Construction The kakivak is made of ivory, bone, or antler for the spear, and driftwood, sticks, or rock for the handle. References {{fisheries and fishing Fishing equipment Inuit tools Harpoons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonar
Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances ( ranging), communicate with or detect objects on or under the surface of the water, such as other vessels. "Sonar" can refer to one of two types of technology: ''passive'' sonar means listening for the sound made by vessels; ''active'' sonar means emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. Acoustic location in air was used before the introduction of radar. Sonar may also be used for robot navigation, and SODAR (an upward-looking in-air sonar) is used for atmospheric investigations. The term ''sonar'' is also used for the equipment used to generate and receive the sound. The acoustic frequencies used in sonar systems vary from very low ( infrasonic) to ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishfinder
A fishfinder or sounder (Australia) is an instrument used to locate fish underwater by detecting reflected pulses of sound energy, as in sonar. A modern fishfinder displays measurements of reflected sound on a graphical display, allowing an operator to interpret information to locate schools of fish, underwater debris, and the bottom of body of water. Fishfinder instruments are used both by sport and commercial fishermen. Modern electronics allows a high degree of integration between the fishfinder system, marine radar, compass and GPS navigation systems. Fathometer Fish finders were derived from '' fathometer''s, active sonar instruments used for navigation and safety to determine the depth of water. The fathom is a unit of water depth, from which the instrument gets its name. The fathometer is an echo sounding system for measurement of water depth. A fathometer will display water depth and can make an automatic permanent record of measurements. Since both fathometers an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rough Fish
Rough fish (or the slang trash fish or dirt fish) is a term used by some United States state agencies and anglers to describe fish that are less desirable to sport anglers within a defined region. The term usually refers to larger game fish species that are not commonly eaten, are too rare to be commonly encountered, or are not favorably sought by anglers for sporting purposes. Many of these species are actually very important in the commercial fishing industry, where they make up the bulk of commercial food fish catches in inland freshwater bodies.Carlander HB (1954''A history of fish and fishing in the upper Mississippi River''Upper Mississippi River Conservation Committee, University of California. Etymology The first reference to the term "rough" as applied to fish species is in the historical work ''A History of Fish and Fishing on the Upper Mississippi River'' by Carlander. To summarize: In the mid-to-late 19th century, commercial fishermen in the Central United States, parti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Sturgeon
The lake sturgeon (''Acipenser fulvescens''), also known as the rock sturgeon, is a North American temperate freshwater fish, one of about 25 species of sturgeon. Like other sturgeons, this species is a bottom feeder with evolutionarily basal traits among fish, reflecting its early divergence from the shark lineage. These traits include a partly cartilaginous skeleton, an overall streamlined shape, and skin bearing rows of bony plates on the sides and back. The lake sturgeon uses its elongated, spade-like snout to stir up the substrate and sediments on the beds of rivers and lakes to feed. Four sensory organs (barbels) hang near its mouth to help the sturgeon locate bottom-dwelling prey. Lake sturgeons can grow to a large size for freshwater fish, topping 7.25 ft (2.2 m) long and 240 lb (108 kg). Description The lake sturgeon has taste buds on and around its barbels near its rubbery, prehensile lips. It extends its lips to vacuum up soft live food, which it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Decoy
A fish decoy is an object in the shape of a fish or some other animal that is used as a decoy to attract fish. It is often used during ice fishing. Unlike a fishing lure, a fish decoy doesn't have a hook. Fish were a common type of American folk art during the Depression era. In fishing Fish decoys can be used to attract predator fish but also sturgeons. Fish decoys are primarily used when ice fishing with spears, although fish decoys have been employed during "normal" (non-ice) fishing to attract fish to where a fisherman may have placed several baited lines. Most common forms of fish decoys are weighted and attached to a line. The line is often attached to the roof of the shanty, some other stationary object, or a jigging stick. The fisherman will then "swim" or "dangle" the decoy to attract a fish in close enough to spear. Another form of decoy that is sometimes used is called a "floater". This type of fish decoy is not weighted, but is attached to a weight that hold ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spearfishing
Spearfishing is a method of fishing that involves impaling the fish with a straight pointed object such as a spear, gig or harpoon. It has been deployed in artisanal fishing throughout the world for millennia. Early civilisations were familiar with the custom of spearing fish from rivers and streams using sharpened sticks. Modern spearfishing usually involves the use of underwater swimming gear and slingshot-like elastic powered spearguns or compressed gas powered pneumatic spearguns, which launch a tethered underwater projectile to strike the target fish. Specialised techniques and equipment have been developed for various types of aquatic environments and target fish. Spearfishing may be done using free-diving, snorkelling or scuba diving techniques, but spearfishing while using scuba equipment is illegal in some countries. The use of mechanically powered spearguns is also outlawed in some countries and jurisdictions such as New Zealand. Spearfishing uses no bait and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
