Projections of the impacts of gear-modification on the recovery of fish catches and ecosystem function in an impoverished fishery
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Published source details
Condy M., Cinner J.E., McClanahan T.R. & Bellwood D.R. (2015) Projections of the impacts of gear-modification on the recovery of fish catches and ecosystem function in an impoverished fishery. Aquatic Conservation: Marine and Freshwater Ecosystems, 25, 396-410.
Published source details Condy M., Cinner J.E., McClanahan T.R. & Bellwood D.R. (2015) Projections of the impacts of gear-modification on the recovery of fish catches and ecosystem function in an impoverished fishery. Aquatic Conservation: Marine and Freshwater Ecosystems, 25, 396-410.
Actions
This study is summarised as evidence for the following.
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Modify fishing trap/pot configuration Action Link |
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Modify fishing trap/pot configuration
A replicated, controlled study in 2011 of a fished area of seabed in the Indian Ocean, Kenya (Condy et al. 2015) found that modified fish trap designs (escape slots of four different sizes) reduced the catches of smaller unwanted fish compared to unmodified traps. Average fish length and weight were greater in the modified traps for three of the four slot widths compared to the unmodified trap (length: 21–26 vs 20 cm/trap; weight: 208–424 vs 178 g/trap). The catch percentages of immature fish were lower in modified traps (19–37%) than unmodified traps (50%). Between September–October 2011, catches from fishing grounds local to Kibuyuni (2–3 km radius) were sampled. Catches in local fishing traps of weaved wood fibre without escape slots were compared with modified traps with escape slots of varying widths (2, 4, 6, 8 cm). Five fishers participated in 12–24 days of experimental fishing with 108 samples analysed/trap design. Traps were set for 24 h and checked daily.
(Summarised by: Khatija Alliji)
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