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022 _a0888-8892
040 _amp
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100 _aFeary, D. A.‏ ‎
_qDavid Alexander
245 _aEffects of Customary Marine Closures on Fish Behavior, Spear-Fishing Success, and Underwater Visual Surveys
_cDavid A. Feary ... [et al]
260 _a2010
300 _app. 341-349
520 _a"Abstract: Customary management systems (i.e., management systems that limit the use of marine resources), such as rotational fisheries closures, can limit harvest of resources. Nevertheless, the explicit goals of customary management are often to influence fish behavior (in particular flight distance, i.e., distance at which an organism begins to flee an approaching threat), rather than fish abundance. We explored whether the flight distance of reef fishes targeted by local artisanal fishers differed between a customary closure and fished reefs. We also examined whether flight distance of these species affected fishing success and accuracy of underwater visual census (UVC) between customary closed areas and areas open to fishing. Several species demonstrated significant differences in flight distance between areas, indicating that fishing activity may increase flight distance. These relatively long flight distances mean that in fished areas most target species may stay out of the range of spear fishers. In addition, mean flight distances for all species both inside and outside the customary-closure area were substantially smaller than the observation distance of an observer conducting a belt-transect UVC (mean [SE]= 8.8 m [0.48]). For targeted species that showed little ability to evade spear fishers, customary closures may be a vital management technique. Our results show that customary closures can have a substantial, positive effect on resource availability and that conventional UVC techniques may be insensitive to changes in flight behavior of fishes associated with fishing. We argue that short, periodic openings of customary closures may allow the health of the fish community to be maintained and local fishers to effectively harvest fishes."
650 _936306
_aMarine resources conservation
650 4 _938345
_aMarine parks and reserves
650 _965007
_aSpear fishing
650 4 _932837
_aFishery management
773 _d2010
_g25(2) :341-349
_tConservation Biology
942 _cD
999 _c59980
_d59976