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The most important factor to consider when selecting a site for a raceway farm is the water supply. Water sources for raceway aquaculture operations are usually streams, springs, reservoirs or deep wells.
The main benefit of RAS is the ability to reduce the need for fresh, clean water while still maintaining a healthy environment for fish. To be operated economically commercial RAS must have high fish stocking densities, and many researchers are currently conducting studies to determine if RAS is a viable form of intensive aquaculture. [3]
Individual fishing quotas (IFQs), also known as "individual transferable quotas" (ITQs), are one kind of catch share, a means by which many governments regulate fishing. The regulator sets a species-specific total allowable catch (TAC), typically by weight and for a given time period. A dedicated portion of the TAC, called quota shares, is then ...
Fishing fleet – an aggregation of fishing vessels of a particular country, such as the Russian fishing fleet, or using a particular gear, such as purse seine fleet. Flushing time – the time required to replace all the water in an estuary or harbour by the actions of currents and tides.
Fishing tackle is the equipment used by anglers when fishing. Almost any equipment or gear used in fishing can be called fishing tackle, examples being hooks , lines , baits / lures , rods , reels , floats , sinkers / feeders , nets , spears , gaffs and traps , as well as wires, snaps, beads, spoons, blades, spinners, clevises and tools that ...
Before FADs, commercial tuna fishing used purse seining to target surface-visible aggregations of birds and dolphins, which were a reliable signal of the presence of tuna schools below. The demand for dolphin-safe tuna was a driving force for FADs. [14] Both recreational and commercial fisheries use FADs.
Sea turtle escaping a shrimp net through a turtle excluder device Loggerhead turtle exits a fishing net through a TED Loggerhead sea turtle escapes through the excluder device An example of a commercial turtle excluder device. A turtle excluder device (TED) is a specialized device that allows a captured sea turtle to escape when caught in a ...
Longliner – Longline fishing is a commercial fishing technique. [8] Factory ship – A factory ship, also known as a fish processing vessel, is a large ocean-going vessel with extensive on-board facilities for processing and freezing caught fish. Fishing fleet – A fishing fleet is an aggregate of commercial fishing vessels.