Pacific Harbor Seal Phoca Vitulina Richardsi Monitoring At Point Reyes National Seashore And Golden Gate National Recreation Area PDF Download
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Author | : National Park Service |
Publisher | : CreateSpace |
Total Pages | : 36 |
Release | : 2013-09-13 |
Genre | : Nature |
ISBN | : 9781492367185 |
Download Pacific Harbor Seal (Phoca Vitulina Richardsi) Monitoring at Point Reyes National Seashore and Golden Gate National Recreation Area 2008 Annual Report Book in PDF, ePub and Kindle
Pacific harbor seals (Phoca vitulina richardsi) are the dominant and only year-round resident pinniped in the San Francisco Bay Area, California. Long-term monitoring studies have been conducted at the largest harbor seal colonies in Point Reyes National Seashore since the mid 1970's. The objectives of monitoring each site and the population as a whole are to i) detect changes in population size, ii) detect changes in reproductive success by way of pup production, and iii) identify anthropogenic or environmental factors that may affect the condition of the population (Adams et al. In Prep).
Author | : National Park Service (Nps) |
Publisher | : Scholar's Choice |
Total Pages | : 42 |
Release | : 2015-02-16 |
Genre | : |
ISBN | : 9781298043702 |
Download Pacific Harbor Seal (Phoca Vitulina Richardsi) Monitoring at Point Reyes National Seashore and Golden Gate National Recreation Area Book in PDF, ePub and Kindle
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author | : Sarah Codde |
Publisher | : CreateSpace |
Total Pages | : 42 |
Release | : 2013-09-04 |
Genre | : Nature |
ISBN | : 9781492329664 |
Download Pacific Harbor Seal (Phoca Vitulina Richardsi) Monitoring at Point Reyes National Seashore and Golden Gate National Recreation Area Book in PDF, ePub and Kindle
The information presented in this report is a summary of the harbor seal data collected at Point Reyes National Seashore and Golden Gate National Recreation Area during the 2011 breeding and molting seasons, March-July. Summary data collected as part of a region-wide survey effort, including adjacent areas (San Francisco Bay, San Mateo County, and Sonoma County) where NPS surveys were conducted in conjunction with other agencies and organizations for 2011, are also presented.
Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 139 |
Release | : 2009-07-17 |
Genre | : Science |
ISBN | : 0309140749 |
Download Shellfish Mariculture in Drakes Estero, Point Reyes National Seashore, California Book in PDF, ePub and Kindle
When Drakes Estero, which lies within the Point Reyes National Seashore (PRNS) about 25 miles northwest of San Francisco, California, was designated by Congress in 1976 as Potential Wilderness, it contained a commercial shellfish mariculture operation. Oyster mariculture began in Drakes Estero with the introduction of the nonnative Pacific oyster in 1932, and has been conducted continuously from that date forward. Hence, the cultural history of oyster farming predates the designation of Point Reyes as a National Seashore in 1962. Nevertheless, with the approach of the 2012 expiration date of the current National Park Service (NPS) Reservation of Use and Occupancy (RUO) and Special Use Permit (SUP) that allows Drakes Bay Oyster Company (DBOC) to operate within the estero, NPS has expressed concern over the scope and intensity of impacts of the shellfish culture operations on the estero's ecosystem. Public debate over whether scientific information justifies closing the oyster farm led to the request for this study to help clarify the scientific issues raised with regard to the shellfish mariculture activities in Drakes Estero.
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 | : Mark S. Lowry |
Publisher | : |
Total Pages | : 38 |
Release | : 2005 |
Genre | : Harbor seal |
ISBN | : |
Download Pacific Harbor Seal, Phoca Vitulina Richardsi, Census in California During May-July 2004 Book in PDF, ePub and Kindle
An aerial photographic census of Pacific harbor seals (Phoca vitulina richardsi) was conducted in California 18 May-19 July 2004 to document the number of seals hauled out during the molt period. To compensate for latitudinal differences in the timing of the molt, the state of California was divided into three sections and each section was surveyed on different dates. The three sections were: (1) Channel Islands and mainland coast of southern California from the U.S./Mexico border to Pismo Beach, (2) central California from Pismo Beach to Point Reyes and San Francisco Bay estuary, and (3) northern California from Point Reyes to the California/Oregon border. Aerial photographic surveys at the Channel Islands and the mainland coast of southern California occurred during the afternoon high-low tide cycle on 18-20 May and 1-3 June at tide levels of 0.43 m to 0.88 m and 0.40 m to 0.73 m, respectively. Surveys in central California occurred during the low-low tide cycle at tide levels of -0.03 m to 0.49 m on 22-25 June. Surveys in northern California occurred during the low-low tide cycle at tide levels of -0.34 m to 0.43 m on 5-9 July and 18-19 July (except at South Humboldt Bay, Eel River, and Cape Mendocino where tide levels were 0.49 m to 0.52 m, 0.89 m, and 0.98 m, respectively). Color transparency photographs of harbor seals were taken with a 126-mm-format camera equipped with image motion compensation. The latitude and longitude of each photograph was recorded by linking the camera to a computer and Global Positioning System (GPS). Two to three observers searched for hauled-out seals. Seals were photographed as the aircraft was flown over the coastline at 213 m (700 ft). A total of 563 haulout sites within the state of California were found during complete surveys conducted at a mean tide level of 0.28 m (-0.46 m to 0.98 m). At the Channel Islands there were 4,344 seals counted onshore, along the mainland coast of California and San Francisco Bay estuary there were 21,989, and statewide there were 26,333. The mainland coast of California was stratified into nineteen 0.5-degree latitude segments with counts from the San Francisco Bay estuary making up the twentieth stratum. Stratum 37.50E to 37.99E had the most seals (n = 3,360) and the most seals at a single haulout site (n = 939). Stratum 40.50E to 40.99E had the highest median (104) and mean (178.4) number of seals per haulout. Of the eight Channel Islands in southern California, Santa Cruz Island had the most seals (n =1,102) and Santa Barbara Island the fewest (n = 12). Total 2004 counts were greater than 2002 counts at mainland sites, but counts at the Channel Islands were relatively stable.
Author | : Doyle A. Hanan |
Publisher | : |
Total Pages | : 86 |
Release | : 1987 |
Genre | : Harbor seal |
ISBN | : |
Download Harbor Seal, Phoca Vitulina Richardsi, Census in California, June 2-5, 30 and July 1, 1986 Book in PDF, ePub and Kindle
Author | : Doyle A. Hanan |
Publisher | : |
Total Pages | : 60 |
Release | : 1988 |
Genre | : Harbor seal |
ISBN | : |
Download Harbor Seal, Phoca Vitulina Richardsi, Census in California, May-June 1987 Book in PDF, ePub and Kindle
Author | : National Park Service (Nps) |
Publisher | : Scholar's Choice |
Total Pages | : 34 |
Release | : 2015-02-16 |
Genre | : |
ISBN | : 9781297045127 |
Download Northern Elephant Seal Monitoring 2005-2007 Report, Point Reyes National Seashore - Scholar's Choice Edition Book in PDF, ePub and Kindle
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
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