{"refrec":{"BRefID":304173,"RR":"<b>Seibel, B.A.; Maas, A.E.; Dierssen, H.M.</b> (2012). Energetic plasticity underlies a variable response to ocean acidification in the pteropod, <i>Limacina helicina antarctica</i>. <i>PLoS One 7(4)</i>: e30464. <a href=\"https://dx.doi.org/10.1371/journal.pone.0030464\" target=\"_blank\">https://dx.doi.org/10.1371/journal.pone.0030464</a>","BEntID":296467,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>PLoS One 7(4)</i>: e30464. <a href=\"https://dx.doi.org/10.1371/journal.pone.0030464\" target=\"_blank\">https://dx.doi.org/10.1371/journal.pone.0030464</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Seibel, B.A.; Maas, A.E.; Dierssen, H.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Seibel, B.A. <i>et al.</i>","Englishabstract":"Ocean acidification, caused by elevated seawater carbon dioxide levels, may have a deleterious impact on energetic processes in animals. Here we show that high PCO<sub>2</sub> can suppress metabolism, measured as oxygen consumption, in the pteropod, <em>L. helicina forma antarctica</em>, by ∼20%. The rates measured at 180–380 µatm (MO<sub>2</sub> = 1.25 M<sup>−0.25</sup>, p = 0.007) were significantly higher (ANCOVA, p  =  0.004) than those measured at elevated target CO<sub>2</sub> levels in 2007 (789–1000 µatm,  =  0.78 M<sup>−0.32</sup>, p  =  0.0008; Fig. 1). However, we further demonstrate metabolic plasticity in response to regional phytoplankton concentration and that the response to CO<sub>2</sub> is dependent on the baseline level of metabolism. We hypothesize that reduced regional Chl <em>a</em> levels in 2008 suppressed metabolism and masked the effect of ocean acidification. This effect of food limitation was not, we postulate, merely a result of gut clearance and specific dynamic action, but rather represents a sustained metabolic response to regional conditions. Thus, pteropod populations may be compromised by climate change, both directly via CO<sub>2</sub>-induced metabolic suppression, and indirectly via quantitative and qualitative changes to the phytoplankton community. Without the context provided by long-term observations (four seasons) and a multi-faceted laboratory analysis of the parameters affecting energetics, the complex response of polar pteropods to ocean acidification may be masked or misinterpreted.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Energetic plasticity underlies a variable response to ocean acidification in the pteropod, <i>Limacina helicina antarctica</i>","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2012,"MonPub":null,"DateUpdate":"2018-12-19","DateCreate":"2018-12-19","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000305339200002","VABBcode":null,"OpenAcc":1,"DOI":"10.1371/journal.pone.0030464"},"refs":null,"anarec":{"AnaID":304173,"PubliDate":2012,"Pagination":"e30464","XtraPublOfAnaID":null,"ISBN":null,"Volume":"7","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":123954,"SerRR":"PLoS One. 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