A Preliminary Assessment of Isolated Populations of Longnose Sucker, Catostomus catostomus (Catostomidae), in the Black Hills, South Dakota and Wyoming

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题名:	A Preliminary Assessment of Isolated Populations of Longnose Sucker, Catostomus catostomus (Catostomidae), in the Black Hills, South Dakota and Wyoming 美國南達科他州和懷俄明州黑丘陵真亞口魚Catostomus catostomus（Catostomidae）隔離族群之初歩評估
作者:	巴利士
贡献者:	土資系
关键词:	黑丘陵隔離族群 Catostomus catostomus Black Hills Isolated populations
日期:	2012-12
上传时间:	2016-10-28 14:15:03 (UTC+8)
摘要:	真亞口魚（Catostomus catostomus）是在北美分佈最廣的亞口魚，地理分佈範圍包括加拿大，阿拉斯加州，五大湖地區，密蘇里河上游的流域，並延伸到西伯利亞東部。在1996年的黑丘陵（南達科他州和懷俄明州）溪流調查，真亞口魚隔離的，潛在受威脅的，族群被指出，並進一步研究被建議。本研究調查了所有現有的文獻以及未出版的的檔案資料來進行黑丘陵的真亞口魚族群之初歩評估。結果表明了：（1）黑丘陵內真亞口魚的間斷記錄很可能反映實際的地理分佈而不是採樣的不足之處，（2）黑丘陵內真亞口魚的地理分佈與平均溪流流量有很強的關聯，（3）黑丘陵的真亞口魚很可能是更新世冰期孑遺族群。更密集黑丘陵的真亞口魚族群監測，研究，以及保育措施被推薦。 The longnose sucker (Catostomus catostomus) is the most widely distributed sucker in North America, ranging throughout Canada, Alaska, the Great Lakes region, the upper Missouri River system, and extending into eastern Siberia. Isolated, potentially threatened, populations of longnose suckers in the Black Hills, South Dakota and Wyoming, were noted during stream surveys in 1996, and further study to assess their status and conservation requirements was recommended. This study surveyed all available literature and unpublished archival records to make a preliminary assessment of the status of longnose suckers in the Black Hills. Results suggest that: (1) disjunct records of longnose suckers in the Black Hills probably reflect actual geographic distribution rather than sampling deficiencies; (2) distribution of longnose suckers within the Black Hills is strongly related to mean annual discharge of streams; (3) longnose suckers in the Black Hills probably represent Pleistocene glacial relict populations. More intensive monitoring, research, and conservation actions for longnose sucker populations in the Black Hills are recommended.
關聯:	華岡農科學報； 30期 (2012 / 12 / 01) ， P1 - 21
显示于类别:	[農學院] 學報-華岡農科學報

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