Dynamics Of Abundance And Distribution For Pacific Harbor Seal Phoca Vitulina Richardsi On The Coast Of California PDF Download
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Author | : Doyle Alan Hanan |
Publisher | : |
Total Pages | : 192 |
Release | : 1996 |
Genre | : Harbor seal |
ISBN | : |
Download Dynamics of Abundance and Distribution for Pacific Harbor Seal, Phoca Vitulina Richardsi, on the Coast of California Book in PDF, ePub and Kindle
Author | : Michael Turner Wilson |
Publisher | : |
Total Pages | : 124 |
Release | : 1993 |
Genre | : Harbor seal |
ISBN | : |
Download The Seasonal Movements and Abundance Dynamics of the Pacific Harbor Seal (Phoca Vitulina Richardsi) Along the Southern Oregon Coast Book in PDF, ePub and Kindle
Author | : Brent S Stewart |
Publisher | : |
Total Pages | : 156 |
Release | : 1981 |
Genre | : Harbor seal |
ISBN | : |
Download Seasonal Abundance, Distribution, and Ecology of the Harbor Seal, Phoca Vitulina Richardsi, on San Miguel Island, California Book in PDF, ePub and Kindle
Author | : Kurt C. Heinonen |
Publisher | : |
Total Pages | : 232 |
Release | : 1985 |
Genre | : Harbor seal |
ISBN | : |
Download The Behavior and Distribution of the Pacific Harbor Seal, Phoca Vitulina Richardsi, at Point San Pedro, San Mateo County, California Book in PDF, ePub and Kindle
Author | : Traci A. Linder |
Publisher | : |
Total Pages | : 36 |
Release | : 2011 |
Genre | : |
ISBN | : 9781267079831 |
Download Estimating Population Size of Pacific Harbor Seals (Phoca Vitulina Richardsi) at Children's Pool Beach in La Jolla, California, Using Photo-identification Book in PDF, ePub and Kindle
Children's Pool Beach in La Jolla, CA is a Pacific harbor seal (Phoca vitulina richardsi) rookery at the center of a large legal controversy. Due to the heated contention surrounding this rookery, very few scientific studies have been done on the population of harbor seals that use this haul-out site. Maximum daily haul-out counts rarely exceed 200, and management decisions have been framed around the assumption of a largely resident population of no more than approximately 250 seals. In this study I used photo-identification and mark-recapture methods to estimate the total population of Pacific harbor seals that used Children's Pool Beach as a haul-out site during January - October 2008. I photographed the ventral surfaces of adult harbor seals at Children's Pool Beach, and then entered each good to high quality photograph into an interactive computer-assisted photograph-matching system for individual identification. Each individual identification was confirmed by both a trained volunteer and myself, resulting in a 4% visual matching error rate. After analysis concluded, 480 unique adult harbor seals were individually identified after applying the 4% visual matching error rate. Abundance estimation was calculated using the Chapman-Petersen capture-recapture model. My calculations yielded a population estimate of 596 individuals during January - October 2008, which is two to three times larger than previously believed. These findings suggest a population that is at least partially open with considerable coastal movement, suggesting that Children's Pool Beach is potentially part of a regional network of interconnected haul-out site.
Author | : |
Publisher | : |
Total Pages | : 304 |
Release | : 2004 |
Genre | : |
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Download Pacific Coast Groundfish Fishery Management Plan, Bycatch Mitigation Program Book in PDF, ePub and Kindle
Author | : Wiley Hall Archibald |
Publisher | : |
Total Pages | : 194 |
Release | : 2015 |
Genre | : Harbor seal |
ISBN | : |
Download Seasonal Changes in the Distribution and Abundance of Pacific Harbor Seals (Phoca Vitulina Richardii) in South Humboldt Bay, California and Its Newly Enacted Marine Protected Area Book in PDF, ePub and Kindle
Harbor seals have been listed as a species likely to benefit from new Marine Protected Areas (MPAs) in California as part of the Marine Life Protection Act. Whereas seals may experience direct and indirect effects from these MPAs as a whole, the impacts of individual MPAs remains unclear. To support the analysis of the impacts of one new MPA located in South Humboldt Bay (SHB), California, I conducted two studies to measure the site fidelity of individual harbor seals within SHB and to describe the changes in distribution and abundance of hauled-out seals inside and outside the new MPA there. From June 2011 through May 2012, I used radio telemetry to assess site fidelity of 28 individually tagged seals. Most seals had high fidelity (>75%) for SHB haul-outs, indicating that these seals are present enough to potentially benefit from added protection. However, the use of radio telemetry proved difficult and costly for long-term data collection. Therefore, weekly visual surveys were implemented beginning in July 2012 to track the habitat use of all seals hauled-out in SHB. There were significant seasonal differences in seal abundance (ANOVA, F5 = 4.047, p
Author | : |
Publisher | : |
Total Pages | : 904 |
Release | : 2011 |
Genre | : |
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Download Silver Strand Training Complex Book in PDF, ePub and Kindle
Author | : Leslie S. Osborn |
Publisher | : |
Total Pages | : 178 |
Release | : 1985 |
Genre | : Harbor seal |
ISBN | : |
Download Population Dynamics, Behavior, and the Effect of Disturbance on Haulout Patterns of the Harbor Seal, Phoca Vitulina Richardsi, Elkhorn Slough, Monterey Bay, California Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 330 |
Release | : 2004 |
Genre | : |
ISBN | : |
Download Amendment 16-3 to the Pacific Coast Groundfish Fishery Management Plan, Rebuilding Plans for Bocaccio, Cowcod, Widow Rockfish, and Yelloweye Rockfish Book in PDF, ePub and Kindle