Recruitment overfishing in a bivalve mollusc fishery: hard clams (Mercenaria mercenaria) in North Carolina
Recruitment overfishing in a bivalve mollusc fishery: hard clams (Mercenaria mercenaria) in North Carolina
复制标题
双壳类软体动物渔业中的过度捕捞：北卡罗来纳州的硬蛤（Mercenaria Mercenaria）
DOI：
10.1139/f01-196
复制
发表时间：
2002
影响因子：
2.4
通讯作者：
C. Peterson
中科院分区：
文献类型：
--
作者：
C. Peterson
由于其高繁殖力，海洋无脊椎动物渔业很少被认为有补充过度捕捞的危险。这一假设可以在种群理论上受到批评，并与越来越多的证据表明，在各种海洋无脊椎动物种群的招聘限制冲突。从1978年到2001年的24年中，对11年的取样表明，在北卡罗来纳州中部渔场，补充量显著下降65 - 72%。这24年的时期开始时，高需求和价格推动增加蛤蜊的努力。因此，上岸量迅速增长了5倍，产量没有持续，随后从1983年到2000年下降了50%以上。在三个有代表性的栖息地重复相同的渔业独立采样表明，在19801997年的18+年期间，文蛤密度下降了17%，79%和95%，产卵种群生物量下降了24%，46%和83%。在枯竭的栖息地进行小规模实验和测量...
Because of their high fecundity, marine invertebrate fisheries are rarely considered at risk to recruitment overfishing. This presumption can be criticized on population theoretic grounds and conflicts with growing evidence of recruitment limitation in a variety of marine invertebrate populations. Sampling in 11 years spanning a 24-year period from 1978 to 2001 reveals that hard clam (Mercenaria mercenaria (L.)) recruitment declined significantly by 6572% within the fishing grounds of central North Carolina. This 24-year period began when high demand and prices drove increased clamming effort. Accordingly, landings grew rapidly 5-fold, a yield that was not sustained and subsequently fell by over 50% from 1983 to 2000. Fishery-independent sampling repeated identically in three representative habitats demonstrates declines of 17, 79, and 95% in hard clam density and of 24, 46, and 83% in spawning stock biomass during the 18+ years of 19801997. Small-scale experiments and measurements in depleted habitats ...