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Field | Value |
Title | Size selectivity of 40 mm square mesh codend with respect to Japanese threadfin bream and moustached thryssa |
Names |
Prakash, R.R.
Rajeswari, G. Sreedhar, U. |
Date Issued | 2010 (iso8601) |
Abstract | Gear selectivity plays a very important role in the management of a viable commercial fishery. The enforcement of gears of high selectivity is important for the protection of juvenile fishes by regulating the size at first capture, the maximisation of yield per recruit and the reduction of discarded quantities (Pope et at., 1975; Reeves et al., 1992., Cadigan and Millar, 1992). The size selectivity of the trawl codend is primarily affected by mesh size and secondarily by other factors such as mesh shape, twine characteristics and net construction (Robertson and Ferro, 1988; Reeves et al., 1992; Galbraith et al., 1994). The results of selectivity experiments allow gear technologists to isolate the elements of gear or the harvesting procedures that permit the escapement of unwanted bycatch. Selectivity experiments also indicate the size and the species that are removed from the marine environment with the use of a particular configuration or a harvest method as well as those species that escape. |
Genre | Article |
Topic | Commercial fishery |
Identifier | Proceedings of the National Seminar on Conservation and Sustainability of Coastal Living Resources of India, 1-3 December 2009, Cochin, ed.by Meenakumari, B. et.al 352-359 |