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首页> 外文期刊>ICES Journal of Marine Science >Using A Simple Morphometric Marker To Identify Spatial Units For Abalone Fishery Management
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Using A Simple Morphometric Marker To Identify Spatial Units For Abalone Fishery Management

机译：使用简单的形态计量标记识别鲍鱼渔业管理的空间单位

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Managing stocks of sedentary marine invertebrates is complicated by the highly structured populations they form. Blacklip abalone (Haliotis rubra) form isolated populations with variable life-history characteristics. Many of the populations are "stunted", attaining a lower maximum size than those in adjacent areas. To reduce the risks of overfishing and localized depletion, management units (MUs) that encompass individual populations need to be determined, then managed according to their life-history characteristics. Here, potential MUs in a South Australian abalone fishery were identified from the broad-scale, spatial distribution of stunted and "non-stunted" populations of blacklip abalone, by applying a morphometric marker to commercial shell samples. Key life-history parameters of the populations within the potential MUs were estimated using relationships between the morphometric marker and blacklip abalone biology. Data from fine-scale systematic sampling by commercial fishers were used to validate spatial patterns observed from the more broadly distributed commercial catch samples. The location, distribution, and size of potential MUs were largely inconsistent with those of current management. The locations of two MUs (in Gerloffs Bay) were consistent across the broad- and fine-scale datasets, with the fine-scale samples more informative for identifying a potential boundary between them. The disparity between these data and current management arrangements are highlighted, and approaches for modifying them are discussed. This approach is among the first to provide a practical means of more closely aligning the scales of assessment and management with biological reality for sedentary marine invertebrates.
机译：久坐不动的海生无脊椎动物的存货管理非常复杂，因为它们形成了高度结构化的种群。黑唇鲍鱼（Haliotis rubra）形成具有不同生活史特征的孤立种群。许多人口被“吓呆了”，其最大规模比邻近地区的人口要低。为了减少过度捕捞和局部枯竭的风险，需要确定涵盖单个种群的管理单位，然后根据其生活史特征对其进行管理。在这里，通过将形态计量标记物应用于商品壳样本，从发育不良和“未受惊吓”的黑唇鲍鱼种群的广泛，空间分布中，确定了南澳大利亚鲍鱼渔业中的潜在MUs。使用形态计量学标记与黑唇鲍鱼生物学之间的关系，估算了潜在MU中种群的关键生命历史参数。商业渔民进行的精细系统采样的数据用于验证从分布较广的商业渔获样品中观察到的空间格局。潜在MU的位置，分布和规模在很大程度上与当前管理层的不一致。两个MU的位置（在Gerloffs湾）在广泛和精细规模的数据集中都是一致的，而精细规模的样本对于识别它们之间的潜在边界更为有用。这些数据与当前管理安排之间的差异被突出显示，并讨论了修改它们的方法。这种方法是率先提供一种实用手段，使久坐的海洋无脊椎动物的评估和管理规模与生物现实更加紧密地结合在一起的方法。

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