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首页> 外文期刊>Reviews in Fisheries Science & Aquaculture >Catch Predictions in Stock Assessment and Management of Invertebrate Fisheries Using Pre-Recruit Abundance-Case Studies from Western Australia
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Catch Predictions in Stock Assessment and Management of Invertebrate Fisheries Using Pre-Recruit Abundance-Case Studies from Western Australia

机译：利用西澳大利亚的招聘前丰富案例研究对无脊椎动物的种群进行评估和管理，以预测产量

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摘要

Catch predictions based on pre-recruit abundance have proven valuable in the stock assessment and management of major invertebrate fisheries in Western Australia for western rock lobster (Panulirus cygnus), pearl oyster (Pinctada maxima), abalone (Haliotis roei), prawn (Penaeus esculentus), scallop (Amusium balloti), and blue swimmer crab (Portunus armatus). Predictions are based on puerulus stage (post-larval) rock lobster from artificial collectors; 0+ and 1+ pearl oyster spat attached to commercial shell; dive survey of Roe's abalone; and trawl surveys of prawn (shrimp), scallop, and crab. These reliable predictions (R-2 = 0.67-0.97) are used in stock assessment and management harvest strategies to ensure that fishing effort or catch quotas are set so that adequate breeding stocks are maintained. This pro-active management based on predicted abundance avoids the pitfall of heavy fishing on poor recruit classes, which is a common cause of recruitment overfishing. The catch-pre-recruit relationship provides valuable information on density-dependent effects between the two life-history stages, with high levels evident in rock lobster and little evidence for prawns and crabs, which reflects the stage at which pre-recruits are measured. The review emphasizes the advantages of catch predictions based on pre-recruit abundance relative to environmental variables and the need for cost-effective pre-recruit monitoring to ensure long-term data. The pre-recruit abundance is valuable in investigating factors affecting year-class strength, including environmental factors and overfishing. The pre-recruit abundance is probably the most valuable information under climate change situations as it provides firm evidence of a change in abundance to justify management action before the change is reflected in the fishery.
机译：在新澳大利亚西部主要无脊椎动物渔业的种群评估和管理中，已证明了基于捕捞前丰富度的渔获量，对西部龙虾（Panulirus cygnus），珍珠牡蛎（Pinctada maxima），鲍鱼（Haliotis roei），大虾（Penaeus esculentus ），扇贝（Amusium balloti）和蓝色游泳蟹（Portunus armatus）。预测基于人工采集者的产粉期（幼虫后）龙虾;附在商品壳上的0+和1+珍珠贝;对Roe鲍鱼的潜水调查;虾（虾），扇贝和螃蟹的拖网调查。这些可靠的预测（R-2 = 0.67-0.97）用于种群评估和管理收获策略中，以确保设定捕捞努力或捕捞配额，从而保持足够的繁殖种群。这种基于预测丰度的主动管理避免了繁重捕捞对贫困新兵阶层的陷阱，这是招募过度捕捞的常见原因。捕捞前的关系为两个生活史阶段之间的密度依赖效应提供了有价值的信息，其中龙虾的含量很高，虾和蟹的证据很少，这反映了捕捞前的阶段。审查强调了基于招聘前相对于环境变量的丰度进行渔获量预测的优势，以及需要进行经济有效的招聘前监测以确保长期数据的需求。征募前的丰度在调查影响年级强度的因素方面很有价值，包括环境因素和过度捕捞。招聘前的人数可能是气候变化情况下最有价值的信息，因为它提供了人数变化的确凿证据，可以在渔业中反映出变化之前证明管理措施的合理性。

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