A management case study for a new commercial fishery: brine shrimp harvesting in Great Salt Lake, Utah, USA.
A management case study for a new commercial fishery: brine shrimp harvesting in Great Salt Lake, Utah, USA.
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DOI：
10.1002/eap.1864
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发表时间：
2019-04
期刊：
影响因子：
--
通讯作者：
G. Belovsky;W. C. Perschon
中科院分区：
文献类型：
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作者：
G. Belovsky;W. C. Perschon
20世纪80年代末，美国犹他州大盐湖有一个为水产养殖业供应卤虫(Artemia Franciscana)包囊的渔业显著扩大。随着这种扩张，在20世纪90年代出现了对渔业可持续性的担忧，特别是它对大量使用该湖并以咸虾为食的北美西部水鸟的影响。我们跟踪犹他州野生动物资源分部(UDWR)使用适应性管理的管理策略的发展，该分部专注于系统的生物学和基于生物学的收获模型的开发。介绍了这些模型及其基本原理，评估了它们在预测方面的成功，并研究了它们对管理捕捞和保护水鸟的影响。我们认为这是一个有趣的案例研究，因为它是在一个相对简单的系统中在很短的时间内发生的。这使我们能够清楚地跟踪管理，从收获市场的开始，到认识到必须在缺乏必要的生物知识的情况下管理收获，到随着生物知识的积累而适应地制定管理战略。结果表明，通过仔细监测资源并在获得必要的逃逸库存时终止收获，收获管理可以取得成功。
A fishery for brine shrimp (Artemia franciscana) cysts to supply the aquaculture industry considerably expanded in the late 1980s in the Great Salt Lake, Utah, USA. With this expansion, concerns emerged in the 1990s about the fishery's sustainability, especially its impact on the abundant western North American waterbirds that use the lake and feed on brine shrimp. We track the development of management strategies using adaptive management by the Utah Division of Wildlife Resources (UDWR), which focused on the biology of the system and development of biology-based harvesting models. The models and their rationale are presented, their success in forecasting is evaluated, and implications for managing the harvest and conserving waterbirds are examined. We view this as an interesting case study because it transpired over a short time in a relatively simple system. This permitted us to clearly track management from the onset of a harvest market, through realization that the harvest had to be managed in the absence of needed biological knowledge, to the adaptive development of management strategies as biological knowledge was accumulated. The outcome illustrates the success that harvest management can attain with careful monitoring of the resource and terminating the harvest when a necessary escapement stock is attained.