{"title":"对经过科布海山的洋流的强烈生物反应","authors":"John Dower , Howard Freeland , Kim Juniper","doi":"10.1016/0198-0149(92)90061-W","DOIUrl":null,"url":null,"abstract":"<div><p>We report results of a CTD and chlorphyll <span><math><mtext>a</mtext></math></span> survey from Cobb Seamount, a shallow seamount in the northeast Pacific. Our results show a several-fold increasein the standing crop of chlorophyll <span><math><mtext>a</mtext></math></span> is centred over the seamount. Current meter and drifter data indicate an anticyclonic deflection of deep currents around consistent with a theoretical stratified Tylor cone. Cobb differs from other seamounts where similar phenomena have been reported (O<span>wens</span> and H<span>ogg</span>; 1980, <em>Deep-Sea Research</em>, <strong>27</strong>, 1029–1045; <span>Gould</span><em>et al</em>., 1981, <em>Deep-Sea Research</em>, <strong>28</strong>, 409–440; <span>Genin</span> and <span>Boehlert</span>, 1985, <em>Journal of Marine Research</em>, <strong>43</strong>, 907–924) in that its summit penetrates well into the euphotic zone. A Taylor column existing at such shallow depths could locally enhance primary production, providing a significant source of energy for higher trophic levels on the seamount. Indirect evidence for such a scenario comes from observations of a high biomass benthic community on Cobb Seamount.</p></div>","PeriodicalId":81079,"journal":{"name":"Deep-sea research. Part A, Oceanographic research papers","volume":"39 7","pages":"Pages 1139-1145"},"PeriodicalIF":0.0000,"publicationDate":"1992-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0198-0149(92)90061-W","citationCount":"128","resultStr":"{\"title\":\"A strong biological response to oceanic flow past Cobb Seamount\",\"authors\":\"John Dower , Howard Freeland , Kim Juniper\",\"doi\":\"10.1016/0198-0149(92)90061-W\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>We report results of a CTD and chlorphyll <span><math><mtext>a</mtext></math></span> survey from Cobb Seamount, a shallow seamount in the northeast Pacific. Our results show a several-fold increasein the standing crop of chlorophyll <span><math><mtext>a</mtext></math></span> is centred over the seamount. Current meter and drifter data indicate an anticyclonic deflection of deep currents around consistent with a theoretical stratified Tylor cone. Cobb differs from other seamounts where similar phenomena have been reported (O<span>wens</span> and H<span>ogg</span>; 1980, <em>Deep-Sea Research</em>, <strong>27</strong>, 1029–1045; <span>Gould</span><em>et al</em>., 1981, <em>Deep-Sea Research</em>, <strong>28</strong>, 409–440; <span>Genin</span> and <span>Boehlert</span>, 1985, <em>Journal of Marine Research</em>, <strong>43</strong>, 907–924) in that its summit penetrates well into the euphotic zone. A Taylor column existing at such shallow depths could locally enhance primary production, providing a significant source of energy for higher trophic levels on the seamount. Indirect evidence for such a scenario comes from observations of a high biomass benthic community on Cobb Seamount.</p></div>\",\"PeriodicalId\":81079,\"journal\":{\"name\":\"Deep-sea research. Part A, Oceanographic research papers\",\"volume\":\"39 7\",\"pages\":\"Pages 1139-1145\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1992-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0198-0149(92)90061-W\",\"citationCount\":\"128\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Deep-sea research. Part A, Oceanographic research papers\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/019801499290061W\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Deep-sea research. Part A, Oceanographic research papers","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/019801499290061W","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A strong biological response to oceanic flow past Cobb Seamount
We report results of a CTD and chlorphyll survey from Cobb Seamount, a shallow seamount in the northeast Pacific. Our results show a several-fold increasein the standing crop of chlorophyll is centred over the seamount. Current meter and drifter data indicate an anticyclonic deflection of deep currents around consistent with a theoretical stratified Tylor cone. Cobb differs from other seamounts where similar phenomena have been reported (Owens and Hogg; 1980, Deep-Sea Research, 27, 1029–1045; Gouldet al., 1981, Deep-Sea Research, 28, 409–440; Genin and Boehlert, 1985, Journal of Marine Research, 43, 907–924) in that its summit penetrates well into the euphotic zone. A Taylor column existing at such shallow depths could locally enhance primary production, providing a significant source of energy for higher trophic levels on the seamount. Indirect evidence for such a scenario comes from observations of a high biomass benthic community on Cobb Seamount.
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