End of Reach 2
收藏US Fish and Wildlife Service Open Data2026-03-28 收录
下载链接：
https://gis-fws.opendata.arcgis.com/datasets/fws::end-of-reach-2
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资源简介：
<span style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'>These layers are included in the Klamath/Trinity System web map which is intended to be an interactive map of the Klamath basin, dams present on the Klamath and Trinity rivers and depicted survey reaches of Arcata Fish and Wildlife Service Fisheries and Aquatic Conservation program's adult escapement monitoring on the Upper Klamath River story map.</span><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><div><br /></div><div>This story map is meant to educate others about carcass surveys performed by Arcata Fish and Wildlife Office Fisheries Program and Yurok Tribe Fisheries Program on the mainstem Klamath River. Crews climb aboard rafts just below Iron Gate Dam to begin the survey and end at the Shasta river confluence (a total of 21.2 km). </div><div><br /></div><div>The data collected from the field is used to estimate annual escapement and characterize age and sex composition and spawning success of adult fall-run Chinook Salmon on the mainstem Klamath River. These estimations guide decisions for water management as well as fishing regulations. </div></div>
这些图层收录于克拉马斯/三一系统（Klamath/Trinity System）网页地图，该地图旨在打造交互式可视化平台，展示克拉马斯流域（Klamath basin）、克拉马斯河与三一河沿岸现存的水坝，以及阿卡塔鱼类和野生动物管理局渔业与水生保护计划（Arcata Fish and Wildlife Service Fisheries and Aquatic Conservation program）在上克拉马斯河专题地图（Upper Klamath River story map）中所描绘的成鱼洄游监测（adult escapement monitoring）河段。
本专题地图旨在向公众科普由阿卡塔鱼类和野生动物办公室渔业计划与尤罗克部落渔业计划（Yurok Tribe Fisheries Program）在克拉马斯河干流（mainstem Klamath River）开展的鲑鱼残体调查（carcass surveys）工作。调查团队从铁闸大坝（Iron Gate Dam）下游登乘皮筏启动调查，全程至沙斯塔河汇流处（Shasta river confluence），总作业长度达21.2公里。
野外采集的调查数据被用于估算克拉马斯河干流秋季洄游型成年奇努克鲑（adult fall-run Chinook Salmon）的年度洄游种群规模，并解析其年龄与性别组成以及产卵成功率。上述估算结果可为水资源管理（water management）决策与渔业法规（fishing regulations）制定提供科学依据。
提供机构：
U.S. Fish & Wildlife Service
