具有渔业领土使用权的高价值物种的共同管理:具有环境可变性的空间生物经济方法

IF 0.8 4区 生物学 Q4 MARINE & FRESHWATER BIOLOGY Scientia Marina Pub Date : 2023-10-03 DOI:10.3989/scimar.05335.071
Victor Gerardo Vargas-López, Francisco Arreguín-Sánchez, José Luis Gutiérrez-González, Juan Carlos Seijo
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引用次数: 0

摘要

鲍鱼是一种高价值资源,是墨西哥重要的出口市场渔业,通过分配给沿海社区渔业的领土使用权进行管理。将特定的年龄结构空间生物经济模型应用于该渔业,以使种群恢复到目标水平。该模型在具有环境可变性的von Bertalanffy生长函数的参数k中纳入了不确定性。采用蒙特卡罗分析方法研究了采用替代渔业管理策略的种群低于和超过目标和生物经济极限参考点的风险。管理策略评估表明,在模拟期结束时,无论生物经济参考点如何,假设捕捞努力量减少,Emin(最小努力量)和EmaxNPV(资源租金最大化努力量)比Emsy(最大可持续产量努力量)产生更高的生物量水平和更高的资源租金现值。Emin和EmaxNPV增加并最大化了物种产生的资源租金现值,同时避免了物种的过度开发。在这个共同管理渔业的渔民的参与下,审议了管理战略的社会后果。
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Co-management of a high-value species with territorial use rights for fisheries: a spatial bioeconomic approach with environmental variability
Abalone is a high-value resource that is an important export market fishery of Mexico that is managed through territorial use rights for fisheries allocated to a coastal community. A specific age-structured spatial bioeconomic model was applied to this fishery to undertake stock recovery to target levels. The model incorporates uncertainty in the parameter k of a von Bertalanffy growth function with environmental variability. The risk of falling below and exceeding the target and bioeconomic limit reference points of the population with alternative fisheries management strategies was studied using a Monte Carlo analysis. The management strategy evaluation showed that Emin (minimum effort) and EmaxNPV (resource rent maximization effort) generated higher biomass levels and higher present value of resource rent than Emsy (effort in maximum sustainable yield) at the end of the simulation period, regardless of the bioeconomic reference points and assuming a reduction in fishing effort. Emin and EmaxNPV increased and maximized the present value of resource rent generated by the species while avoiding its overexploitation. The social consequences of the management strategies were considered with the participation of fishers of this co-managed fishery.
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来源期刊
Scientia Marina
Scientia Marina 生物-海洋与淡水生物学
CiteScore
2.10
自引率
0.00%
发文量
21
审稿时长
6-12 weeks
期刊介绍: Scientia Marina is the successor to Investigación Pesquera, a journal of marine sciences published since 1955 by the Institut de Ciències del Mar de Barcelona (CSIC). Scientia Marina is included in the Science Citation Index since 1998 and publishes original papers, reviews and comments concerning research in the following fields: Marine Biology and Ecology, Fisheries and Fisheries Ecology, Systematics, Faunistics and Marine Biogeography, Physical Oceanography, Chemical Oceanography, and Marine Geology. Emphasis is placed on articles of an interdisciplinary nature and of general interest.
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