longline fishing

Longline fishing, or longlining, is a commercial fishing angling technique that uses a long main line with baited hooks attached at intervals via short branch lines called snoods or gangions. A snood is attached to the main line using a clip or swivel, with the hook at the other end. Learn how longline fisheries work, what are the benefits and challenges, and how they are certified by MSC. Find out how longlines can be set for pelagic or demersal fishing, and how they can protect the environment and the catch. Learn about the longline fishing method, which is ideal for catching deep-dwelling tuna species and other non-tuna species. Find out its key statistics, bycatch rate, fuel efficiency and mitigation methods from the International Seafood Sustainability Foundation. Longlining employs a central fishing line that can range from one to 50 miles long; this line is strung with smaller lines of baited hooks, dangling at evenly spaced intervals. Longlines can be... Bottom (demersal) longlines are set horizontally along the ocean floor, and are held in place using anchors. The primary difference between bottom longline fishing and auto longline fishing is that hooks are baited by hand rather than a machine. When set, the longline can be many kilometres in length and have several thousand hooks. The shark by-catch of tuna longline fisheries in Southern Indian Ocean of Java, Indonesia. / Sulaiman, Priyo Suharsono; Patria, Mufti Petala; Sue, Rauf Achmad. In: E3S Web of Conferences, Vol. 74, 02004, 12.12.2018. Research output: Contribution to journal › Conference article › peer-review H. Ijima, D. Ochi, T. Nishida, H. Okamoto, “Standardization of CPUE for stripe marlin (Tetrapturus audax) of Japanese longline fishery in Indian Ocean,†Paper presented on 13th Working Party on Billfish, Olhao, Portugal, 1-5 September 2015. IOTC-2015-WPB13-17.16pp. Sep 2015. Longline fishing is a type of commercial fishing. It involves catching fish by setting long lines with baited hooks in the water at a distance of 6 to 12 miles from shore, or the exclusive economic zone. There are many problems associated with this type of fishery; they include overfishing and bycatch, as well as damage to marine habitats. The IPOA-SEABIRDS is a voluntary instrument that applies to all States whose fishermen engage in longline fisheries.The text sets out a set of activities which implementing States are expected to carry out, including an assessment of whether a problem exists with respect to the incidental catch of seabirds in its longline fishery, adopting a National Plan of Action for reducing the incidental ... B. The western and central Pacific Ocean tuna longline fishery 6 C. The catch: target species 8 D. The catch: byproduct and bycatch species 10 E. Bait used in longline fishing 12 F. Handling, preparing and splicing ropes and lines 14 G. General knots 16 H. Knots used with monofilament and the use of crimps 18 I. Working with ropes and lines 20 This research examines the impact potential illegal longline fishing vessels have on albatrosses. Using environmental criminology as a guiding theoretical framework, this research: (a) examines the patterns of concentration of potentially illegal longline fishing efforts and their relationships with the spatial distributions of commercially sought-out and illegally-caught fish species; and (b ... Study of fisheries management based on fishing capacity is an alternative approach to control fishery resource related to the limitation of fishing effort capacity. Technical efficiency of tuna longline research has been conducted in 2011 with the objective to estimate the tuna longline fishing capacity, especially tuna longline vessels of PT.