Evaluation of Endangered Lakesucker Rearing in Tributaries to Upper Klamath Lake by Use of X-Ray Imaging
| Autor: | Molly F. Hayes, Josh E. Rasmussen |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Catostomus geography geography.geographical_feature_category Ecology biology Lost river sucker 010604 marine biology & hydrobiology Endangered species biology.organism_classification 010603 evolutionary biology 01 natural sciences Deltistes Fishery Chasmistes brevirostris Tributary Sucker Klamath largescale sucker Ecology Evolution Behavior and Systematics |
| Zdroj: | Western North American Naturalist. 77:130-135 |
| ISSN: | 1944-8341 1527-0904 |
| DOI: | 10.3398/064.077.0115 |
| Popis: | Two species of endangered, primarily lake-dwelling sucker are endemic to the Upper Klamath Basin in southern Oregon: shortnose sucker (Chasmistes brevirostris) and Lost River sucker (Deltistes luxatus). A third unlisted species, Klamath largescale sucker (Catostomus snyderi), also occurs in the basin. Apart from a small group of adult Lost River suckers documented in a tributary to Upper Klamath Lake in the late 1990s, it is generally believed that though the listed sucker species spawn in tributaries, the larvae out-migrate within days of swim-up, and therefore, there is no juvenile residence in the tributaries. We used X-ray imaging and vertebral counts to identify 347 juvenile suckers collected from tributaries to Upper Klamath Lake between 2006 and 2008. We positively identified 13 individuals as Lost River sucker. Our finding of juvenile endangered suckers rearing in tributaries to Upper Klamath Lake challenges the previous finding that larval and juvenile suckers only spend a small portion... |
| Databáze: | OpenAIRE |
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