þÿ<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta name=Title content="O HARA, P"> <meta name=Keywords content=""> <meta http-equiv=Content-Type content="text/html; charset=unicode"> <meta name=ProgId content=Word.Document> <meta name=Generator content="Microsoft Word 11"> <meta name=Originator content="Microsoft Word 11"> <link rel=File-List href="37_1_61-65_files/filelist.xml"> <title>O HARA, P</title> <!--[if gte mso 9]><xml> <o:DocumentProperties> <o:Author>ec</o:Author> <o:Template>Normal</o:Template> <o:LastAuthor>Benjamin Saenz</o:LastAuthor> <o:Revision>2</o:Revision> <o:TotalTime>1</o:TotalTime> <o:Created>2009-10-12T16:56:00Z</o:Created> <o:LastSaved>2009-10-12T16:56:00Z</o:LastSaved> <o:Pages>1</o:Pages> <o:Words>242</o:Words> <o:Characters>1383</o:Characters> <o:Company>Environment Canada</o:Company> <o:Lines>11</o:Lines> <o:Paragraphs>2</o:Paragraphs> <o:CharactersWithSpaces>1698</o:CharactersWithSpaces> <o:Version>11.1280</o:Version> </o:DocumentProperties> <o:OfficeDocumentSettings> <o:PixelsPerInch>96</o:PixelsPerInch> <o:TargetScreenSize>800x600</o:TargetScreenSize> </o:OfficeDocumentSettings> </xml><![endif]--><!--[if gte mso 9]><xml> <w:WordDocument> <w:PunctuationKerning/> </w:WordDocument> </xml><![endif]--> <style> <!-- /* Font Definitions */ @font-face {font-family:"Times New Roman"; panose-1:0 2 2 6 3 5 4 5 2 3; mso-font-charset:0; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:50331648 0 0 0 1 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0in; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman";} table.MsoNormalTable {mso-style-parent:""; font-size:10.0pt; font-family:"Times New Roman";} @page Section1 {size:8.5in 11.0in; margin:1.0in 1.25in 1.0in 1.25in; mso-header-margin:35.4pt; mso-footer-margin:35.4pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> </style> </head> <body bgcolor=white lang=EN-US style='tab-interval:.5in'> <div class=Section1> <p class=MsoNormal>O HARA, P.D., DAVIDSON, P. &amp; BURGER, A.E. 2009. Aerial surveillance and oil spill impacts based on beached bird survey data collected in southern British Columbia. <i>Marine Ornithology</i><span style='font-style: normal'> 37: 61-65.</span></p> <p class=MsoNormal><span lang=EN-CA style='mso-ansi-language:EN-CA'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p> <p class=MsoNormal><span lang=EN-CA style='mso-ansi-language:EN-CA'>The cumulative impact of maritime oil pollution resulting from frequent but typically small oil discharges (i.e., &lt; 1000 l) is a significant issue world-wide, but it is a difficult issue to address because of the size of the oil spills involved relative to the size of the environment into which they are released.<span style="mso-spacerun: yes">&nbsp; </span>Here we compare oil spill patterns and surveillance flight effort of the Canadian National Aerial Surveillance Program (NASP) with the proportion of oiled carcasses and beaches documented by Beached Bird Survey (BBS) programs conducted in several regions of southern British Columbia.<span style="mso-spacerun: yes">&nbsp; </span>BBS results from two regions (west coast of Vancouver Island and the Strait of Georgia) support the contention that NASP surveillance over adjacent waters has played a role in reducing the cumulative impact of small oil spills on marine birds.<span style="mso-spacerun: yes">&nbsp; </span>However, the proportion of oiled carcasses documented in other regions (south Vancouver Island, Vancouver Harbour, and Boundary Bay) provides no support for the deterrence effect of NASP.<span style="mso-spacerun: yes">&nbsp; </span>The absence of a deterrence affect suggests that predominant maritime activities in these regions are not affected by NASP presence, as these activities may not have been targeted as potential oil pollution sources in the past.<span style="mso-spacerun: yes">&nbsp; </span>Our comparisons not only provide some evidence of the impact of NASP on oil discharges at sea, but also can serve to inform NASP or other enforcement agencies in terms of where future effort could be most beneficial. <o:p></o:p></span></p> <p class=MsoNormal><span lang=EN-CA style='mso-ansi-language:EN-CA'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p> </div> </body> </html>