Reproductive benefits of no-take marine reserves vary with region for an exploited coral reef fish.
Reproductive benefits of no-take marine reserves vary with region for an exploited coral reef fish.
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无捕捞海军储量的生殖益处因剥削珊瑚礁鱼而异。
DOI：
10.1038/s41598-017-10180-w
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发表时间：
2017-08-29
影响因子：
4.6
通讯作者：
Williams AJ
中科院分区：
文献类型：
--
作者：
Carter AB;Davies CR;Emslie MJ;Mapstone BD;Russ GR;Tobin AJ;Williams AJ
禁止捕捞的海洋保护区预计将通过从保护区向邻近捕鱼区净出口鱼卵和幼体(招募补贴)而使渔业受益。量化鸡蛋产量是评估招聘补贴潜力的第一步。我们计算了2004年至2013年在澳大利亚大堡礁(GBR)的鱼类和NTMR珊瑚礁上具有重要商业价值的普通珊瑚鲑鱼的单位面积年产卵量(EPUA)。地理区域、NTMR状态、鱼类大小和种群密度都影响EPUA。这些因素之间的相互作用是这样的：与开放捕捞的珊瑚礁相比，北冰洋大堡礁上的EPUA在大堡礁南部高出21%，在大堡礁中部高出152%，而在北大堡礁低56%。结果表明，尽管NTMR可能提供大量的补充补贴(中央大堡礁)，但它们可能提供小得多的补贴(南部大堡礁)，或在人口比率不同的附近地点作为同一物种的补充汇(北部大堡礁)。这项研究强调了在评估NTMR的地点时考虑EPUA的空间差异的重要性，如果他们期望从他们那里获得招聘补贴。
No-take marine reserves (NTMRs) are expected to benefit fisheries via the net export of eggs and larvae (recruitment subsidy) from reserves to adjacent fished areas. Quantifying egg production is the first step in evaluating recruitment subsidy potential. We calculated annual egg production per unit area (EPUA) from 2004 to 2013 for the commercially important common coral trout, Plectropomus leopardus, on fished and NTMR reefs throughout the Great Barrier Reef (GBR), Australia. Geographic region, NTMR status, fish size, and population density were all found to affect EPUA. The interactions among these factors were such that, EPUA on NTMR reefs compared to reefs open to fishing was 21% greater in the southern GBR, 152% greater in the central GBR, but 56% less in the northern GBR. The results show that while NTMRs can potentially provide a substantial recruitment subsidy (central GBR reefs), they may provide a far smaller subsidy (southern GBR), or serve as recruitment sinks (northern GBR) for the same species in nearby locations where demographic rates differ. This study highlights the importance of considering spatial variation in EPUA when assessing locations of NTMRs if recruitment subsidy is expected from them.
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DOI：
10.1139/cjfas-57-7-1448
发表时间：
2000-07-01
影响因子：
2.4
作者：
Adams, S;Mapstone, BD;Davies, CR
通讯作者：
Davies, CR
影响因子：
2.5
作者：
Bode, M;Bode, L;Armsworth, PR
通讯作者：
Armsworth, PR
影响因子：
2
作者：
Carter, A. B.;Russ, G. R.;Mapstone, B. D.
通讯作者：
Mapstone, B. D.
影响因子：
5
作者：
Chan, Neil C. S.;Connolly, Sean R.;Mapstone, Bruce D.
通讯作者：
Mapstone, Bruce D.
影响因子：
6.3
作者：
Fernandes, L;Day, J;Stapleton, K
通讯作者：
Stapleton, K