Marine reserves: patterns of adult movement of the coral trout (Plectropomus leopardus (Serranidae))
Marine reserves: patterns of adult movement of the coral trout (Plectropomus leopardus (Serranidae))
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海洋保护区：珊瑚鳟鱼（Plectropomus leopardus（Serranidae））的成年运动模式
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
G. Russ
中科院分区：
文献类型：
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作者：
D. Zeller;G. Russ
在澳大利亚大堡礁考察了主要渔业物种豹棘鲷（Plectropomus leopardus）跨越海洋保护区边界的活动。使用标记-释放-再捕获和超声遥测来评估运动。标记-释放-再捕获采用钩绳作为捕获方法，水下视觉普查（UVC）作为“再捕获”工具。捕捞率显着更高的区域关闭捕鱼，尽管紫外线显示没有显着差异，在封闭区和开放区之间的密度。在183条标有数字冻结品牌的鱼中，获得了93条品牌鱼的运动估计。在为期2个月的研究中，没有记录到品牌鱼越过保护区边界，这可能是由于最初决定在整个研究区域均匀分配捕获努力，而不是将其集中在保护区边界。携带超声波发射器的鱼，以及跨越保护区边界的家域，平均每月跨越边界15.3次。捕获和重新捕获之间的冻结品牌标本移动的平均距离显着较大的地区关闭捕鱼比那些开放捕鱼。但是，超声波遥测技术确定的每天平均移动距离在禁渔区和开放捕鱼区之间没有差别。这项研究表明，低流量率的成年豹跨越海洋保护区的边界。
Movements of Plectropomus leopardus (Serranidae), a major fisheries species, across marine reserve boundaries were investigated on the Great Barrier Reef, Australia. Mark-release-recapture and ultrasonic telemetry were used to assess movements. Mark-release-recapture used hook and line as the method of capture and underwater visual census (UVC) as the "recapture" tool. Catch rates were significantly higher in zones closed to fishing, despite UVC indicating no significant differences in density between closed and open zones. Of 183 fish marked with numerical freeze brands, 93 estimates of movements of branded fish were obtained. No branded fish was recorded to cross the reserve boundaries during the 2-month study, probably due to the initial decision to allocate capture effort evenly across the study area, rather than concentrating it on reserve boundaries. Fish carrying ultrasonic transmitters, and having home ranges straddling reserve boundaries, crossed boundaries on average 15.3 times•month⁻¹. The mean distance moved by freeze branded specimens between capture and recapture was significantly larger in areas closed to fishing than in those open to fishing. However, mean distance moved per day determined by ultrasonic telemetry did not differ between areas closed and open to fishing. This study suggests low flux rates of adult P. leopardus across marine reserve boundaries.