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Urban fisheries investigation: development of a site selection method for central Iowau27s urban ponds

机译：城市渔业调查：爱荷华州中部城市池塘选址方法的发展

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摘要

Waning fishing license sales over several decades has provided an impetus for reconnecting with Iowau27s 64% urban majority and a modern angler unable or unwilling to travel great distances to fish. One result has been the recent urban fisheries assessments and improvements in Iowa, active in some form for nearly a decade. The goal of the current state project is to establish sustainable fishery resources for Iowau27s urban areas. A cooperative effort between the Iowa Department of Natural Resources and Iowa State University focused on assessing a nine-county area in central Iowa from 2010 to 2014. The study discovered 153 sites via remote sensing and reduced that to 23 sites in four of the original nine counties by focusing on ponds owned by cooperative and communicative municipalities. A site selection matrix was developed to further prioritize these sites to focus time and funding on a limited number of ponds. Aspects of abiotic and biotic pond attributes and associated management techniques were incorporated, including: social, site amenity, watershed, water quality, vegetation, pond construction, and fishery features. Enhancement and preservation of existing, well-functioning resources was emphasized to best maximize return on investment of labor and capital. The top five sites were chosen to receive more focused management recommendations. These five highly ranked, priority urban fisheries provide many recreation opportunities for a wide range of communities. This thesis explores the process of evaluating all of these sites, creating a rubric with which to grade them, and a statistically justified ranking system to prioritize them.
机译：几十年来销售许可证的逐渐减少，为重新与爱荷华州64％的城市多数人以及无法或不愿长途跋涉捕鱼的现代垂钓者提供了动力。结果就是最近在爱荷华州进行的城市渔业评估和改进，以某种形式活跃了将近十年。当前国家项目的目标是为爱荷华州的城市地区建立可持续的渔业资源。爱荷华州自然资源部和爱荷华州立大学之间的合作重点是评估2010年至2014年爱荷华州中部的一个九县地区。该研究通过遥感发现了153个地点，并将其减少到最初9个中的四个地点中的23个地点。县，重点放在合作和交流城市拥有的池塘上。开发了场所选择矩阵，以进一步优先考虑这些场所，以将时间和资金集中在有限数量的池塘上。纳入了非生物和生物池塘属性的方面以及相关的管理技术，包括：社会，场所便利性，分水岭，水质，植被，池塘建设和渔业特征。强调加强和保存现有的，运转良好的资源，以最大程度地最大程度地提高劳动力和资本的投资回报率。选择排名前五位的站点是为了获得更具针对性的管理建议。这五个高度优先的城市渔业为广泛的社区提供了许多休闲机会。本文探讨了评估所有这些站点的过程，创建用于对其进行评级的专栏以及统计上合理的排名系统以对它们进行优先排序的过程。

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    Konrady Steven J.;

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  • 年度 2015
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