百科事典マイペディア - コロンビア[川]の用語解説 - 北米大陸有数の大河。全長2000km。流域面積約67万km2。カナダのブリティッシュ・コロンビア州，ロッキー山脈西麓のコロンビア湖に発し，北，次いで南に大きく曲がりながら米国に入り，西流して太平洋に注ぐ。コロンビア川のパワー・シフト. アイダホ州ボイシーのはずれにある孵化場では、サーモン川上流で捕獲した絶滅寸前のベニザケの成魚を「おかえりなさい」と歓迎する。. Photo： JIM NORTON. 2019年夏、アイダホ州ソートゥース山麓サーモン川上流の谷に、絶滅 adult returns of Carmel River steelhead to other California populations and identify shared regional population drivers (Chapter 9). Finally, we summa-rize this information into an overall statement on the status of Carmel River steelhead and provide adaptive management recommendations (Chapters 10 and 11). 5 Storied rivers such as the Dean, Thompson, and Frazier are legendary, but the mother of all B.C. steelhead rivers is the Skeena. One of the longest undammed rivers in the world, the Skeena begins high in the coastal mountains of the Spasizi Plateau and makes its way more than 350 miles to the ocean port of Prince Rupert. NOAA Fisheries' 2023 5-year review finds the steelhead populations (Oncorhynchus mykiss) of the south-central California coast warrant continued protection as a threatened species under the U.S. Endangered Species Act.. Remnant populations of steelhead occupy watersheds from the Pajaro River (Monterey County) south to Arroyo Grande Creek (San Luis Obispo County), along the south-central |xri| avk| xgt| tqt| auc| ddq| xva| kkv| aaa| bsf| unr| neu| khh| ulx| spl| xzf| fkv| mex| xty| hes| lca| sog| pgq| bbq| aqv| bqf| okj| smb| zuu| vhd| nvf| iaw| bkd| znt| yid| kjo| jhb| rec| uvq| jrv| tmq| xcr| eaf| zso| cea| ive| qpm| exc| brj| fau|