| Autor: |
Babey, C. N., Gantner, N., Williamson, C. J., Spendlow, I. E., Shrimpton, J.M. |
| Předmět: |
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| Zdroj: |
Journal of Applied Ichthyology; Dec2020, Vol. 36 Issue 6, p780-784, 5p |
| Abstrakt: |
Keywords: otter; PIT tag; predation; radio tag; white sturgeon EN otter PIT tag predation radio tag white sturgeon 780 784 5 12/21/20 20201201 NES 201201 INTRODUCTION White sturgeon ( I Acipenser transmontanus i ) in the Nechako River, British Columbia, Canada have experienced recruitment failure since 1967 (McAdam et al., 2005) and this population was listed as endangered under the Species at Risk Act (SARA) in 2006 (Fisheries & Oceans Canada, 2014). Sturgeon radio tags were collected in suspected otter feeding sites and sturgeon PIT tags were collected from otter latrine sites. It is difficult to be confident that all radio-tagged sturgeon mortalities are a result of river otter predation, however there is evidence that at least a proportion of radio-tag mortalities were caused by otters. [Extracted from the article] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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