Distribution 20220421 MasterArchive
收藏US Fish and Wildlife Service Open Data2026-03-28 收录
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https://gis-fws.opendata.arcgis.com/datasets/fws::distribution-20220421-masterarchive-1
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资源简介：
<div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'>Date: December 2022</div><span style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'>Summary: The Pacific lamprey has inhabited the rivers, streams and coastal waters of the west for 350 million years (BPA, 2005). These data describe areas of known distribution (this dataset is limited to Oregon, Washington and Idaho) currently and historically used by Pacific Lamprey. Pacific Lamprey, Entosphenus tridentata are native to the Pacific coast from Baja California to the Bering Sea. They are anadromous, migrating from their natal stream to the ocean and back, but unlike salmon, Pacific Lamprey spend well over half of their total life cycle in freshwater. </span><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'>Distribution data is mapped at a 1:24,000 scale and are based on the StreamNet Hydrography dataset. <div style='font-family:inherit;'>Type: ArcGIS Feature Layer View for most up to date observation and distribution data</div><div style='font-family:inherit;'>Reason: Public outreach </div><div style='font-family:inherit;'>Scale: Web <div style='font-family:inherit;'>Source: Columbia River Fish and Wildlife Conservation Office curated the data from multiple sources (see metadata).</div></div></div>
提供机构：
U.S. Fish & Wildlife Service
