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Home site fidelity in Black Rockfish, Sebastes melanops , reintroduced into a fjord environment
| Content Provider | Semantic Scholar |
|---|---|
| Author | Marliave, Jeff Frid, Alejandro Welch, David W. Porter, Aswea D. |
| Copyright Year | 2013 |
| Abstract | Between December 2004 and January 2007, we studied the movements of six Black Rockfish ( Sebastes melanops ) that had been fitted with acoustic transmitters and reintroduced into a fjord environment at the edge of Vancouver Harbour, British Columbia. The Black Rockfish were released in December 2004 and April 2005 at a reef characterized by complex rocky structures and steep slopes; bottom depths at the site dropped from 10 to 55 m within a horizontal distance of only 30 m. The reef, however, is small (approximately 4500 m 2 ) and is surrounded by soft bottom habitats used infrequently by Black Rockfish. VEMCO VR2 receivers were deployed at the release site and at outlying reefs located 1 and 4 km away. Acoustic data suggest that one individual emigrated from the reef after 11 months of residency and a second individual disappeared abruptly after 6 weeks on the reef, possibly due to fishing mortality or emigration. The four remaining individuals appear to have confined their movements to the release site, using an area 6 to 10 times smaller than the home ranges reported for populations in low-gradient coastlines in California and Oregon. |
| Starting Page | 255 |
| Ending Page | 261 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.22621/cfn.v127i3.1491 |
| Volume Number | 127 |
| Alternate Webpage(s) | http://journals.sfu.ca/cfn/index.php/cfn/article/download/1491/1511 |
| Alternate Webpage(s) | https://alejandrofridecology.weebly.com/uploads/1/1/5/7/11577517/blackrock_canfieldnat2013.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
