Knowra Tuna fishing Tuna fishing Tuna fishing is the capture of tuna for food and trade, using methods such as purse seining and longlining. Its impacts depend on fishing gear, target species, and management.
Purse seining : A fishing method that encircles a school of fish with a net whose bottom can be drawn closed. This method targets schooling tuna, often with fish aggregating devices.
Tuna : A group of fast-swimming predatory fishes in the tribe Thunnini, including several commercially important species. Tuna fishing targets species with distinct ranges, sizes, and life histories.
Tuna canning : The preservation of tuna in sealed containers through heat processing. Canned tuna is a major market for skipjack and other commercially caught tuna.
Overfishing : Fishing that removes fish faster than populations can replace them. Excessive harvest can reduce tuna populations and undermine long-term catches.
Tuna stock assessment : A scientific estimate of a tuna population's size, productivity, and response to fishing. Assessments guide catch limits but depend on incomplete catch and biological data.
Longline fishing : A fishing method that sets a main line with many baited hooks attached to shorter branch lines. Longlines catch tuna individually but can also hook sharks, turtles, and seabirds.
Atlantic bluefin tuna : A large tuna species found in the Atlantic Ocean and Mediterranean Sea. Its high market value and migratory range make it a prominent fishery target.
Sashimi : A Japanese dish of thinly sliced raw seafood served without rice. Demand for high-quality raw tuna shapes handling, grading, and trade.
Maximum sustainable yield : The largest long-term average catch that can be taken from a population under specified conditions. Tuna quotas may use this benchmark, though uncertainty complicates its application.
Traceability : The ability to follow a product through its production, processing, and distribution chain. Tuna supply chains need reliable records to verify species, origin, and legality.
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