Notes On Grouper Spawning In Penrhyn, Cook Isands

Notes on grouper spawning assemblings in Tong arva, interpolate Islands, June 1995 by Kelvin Passfield Rarotonga, distort Islands, E-mail:kelvin.passfield@gmail.com SPC Traditional Marine Resource Management and fellowship Information Bulletin #7 – September1996 Tong arva (also known as Penryhn) is laid at approximately 9°S and 158°W. Fishermen there scrape an yearbook spawning accruement of Epinephelus polyphekadion, known locally as hapuku.. In 1995 the hapuku started their spawning aggregation in early June. It is possible that they were aggregation in late May, but signifi atomic number 50t catches were be do on the week end of 3 June. For 2–3 weeks leading up to the time of the of import spawning aggregation, higher(prenominal)-than-normal numbers racket of hapuku be caught well-nigh coral heads inside the lagoon. The main aggregation appears to give out for only about 2 weeks. A similar annual event further to the west, in Manihiki Atoll (10°S and 160°W), is report to last from new moon to broad moon, around the said(prenominal) time. Fishing is normally conducted just inside the main passage, in depths of around 20 to 35 m. Boats anchor in shallower water, around a patch reef, and drift back on immense anchor ropes so that they are over of late water.

The pet bait is look for, with several infor partts regarding kaha (mullet, Liza vaigiensis) as best. A average weight is required to sink the hook fast, as sharks can and do take the bait. Four-inch-long pieces of reinforcing rod or free bolts are commonly used. Sharks are a significant problem, frequently caustic through the line, resulting in gear loss. Spare hooks, weights and traces ! must be carried. Steel traces are sometimes used to forbid losing gear, with no apparent reduction in hapuku catch. About 15 aluminum skiffs regularly fish Taruia Passage, and catch rates are usually in the vicinity of 10 to 12 fish per man hour, though they can be much higher in perfect conditions. Fish average around 1.5 kg, and mostly dictate from...If you want to get a full essay, magnitude it on our website: OrderEssay.net

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