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="THERRIAULT, T"> <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_3-8_files/filelist.xml"> <title>THERRIAULT, T</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>2009-10-12T16:57:00Z</o:Created> <o:LastSaved>2009-10-12T16:57:00Z</o:LastSaved> <o:Pages>1</o:Pages> <o:Words>202</o:Words> <o:Characters>1154</o:Characters> <o:Company>Environment Canada</o:Company> <o:Lines>9</o:Lines> <o:Paragraphs>2</o:Paragraphs> <o:CharactersWithSpaces>1417</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><span lang=EN-CA style='mso-ansi-language:EN-CA'>THERRIAULT, T.W., HAY, D.E. &amp; SCHWEIGERT, J.F.<span style="mso-spacerun: yes">&nbsp; </span>2009.<span style="mso-spacerun: yes">&nbsp; </span>Biological overview and trends in pelagic forage fish abundance in the Salish Sea (Strait of Georgia, British Columbia). <i>Marine Ornithology</i></span><span lang=EN-CA style='mso-ansi-language:EN-CA'> 37: 3-8.<o:p></o:p></span></p> <p class=MsoNormal><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></p> <p class=MsoNormal>Pacific Herring <i>Clupea pallasi</i><span style='font-style: normal'> are probably the most important fish prey species for seabirds in the Salish Sea.<span style="mso-spacerun: yes">&nbsp; </span>Although several other forage fish species are present, none approach the abundance levels of herring, with the possible exception of Pacific Sand Lance </span><i>Ammodytes hexapterus </i><span style='font-style:normal'>a species whose basic biology, distribution, and abundance are poorly understood.<span style="mso-spacerun: yes">&nbsp; </span>In the Strait of Georgia, herring abundance reached a historical high in 2003 after increasing since the 1980s, but subsequently has declined.<span style="mso-spacerun: yes">&nbsp; </span>Spatial and temporal changes in spawn distribution have occurred, with the concentration of spawning activity now in the northwestern part of the Salish Sea.<span style="mso-spacerun: yes">&nbsp; </span>Although the mean spawning time (mid-March) has not changed, the relative frequency of early and late spawns has diminished.<span style="mso-spacerun: yes">&nbsp; </span>These temporal and distributional changes may have impacted seabirds and other predators that prey on herring during the spawning period.<span style="mso-spacerun: yes">&nbsp; </span>Also, juvenile herring surveys indicate that the 2005 and 2007 cohorts were negligible by September.<span style="mso-spacerun: yes">&nbsp; </span>The cause(s) of those apparent cohort failures are not understood, but the impact on seabirds that rely on age 0+ juveniles may have been substantial.<span style="mso-spacerun: yes">&nbsp; </span></span></p> <p class=MsoNormal><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></p> </div> </body> </html>