{"refrec":{"BRefID":254219,"RR":"<b>Thompson, G.; Dinofrio, E.O.; Alder, V.A.; Takahashi, K.T.; Hosie, G.W.</b> (2012). Copepod distribution in surface waters of the Drake Passage using Continuous Plankton Recorder and a pump-net onboard system. <i>Braz. J. Oceanogr. 60(3)</i>: 367-380. <a href=\"http://dx.doi.org/10.1590/S1679-87592012000300009\" target=\"_blank\">http://dx.doi.org/10.1590/S1679-87592012000300009</a>","BEntID":246032,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Braz. J. Oceanogr. 60(3)</i>: 367-380. <a href=\"http://dx.doi.org/10.1590/S1679-87592012000300009\" target=\"_blank\">http://dx.doi.org/10.1590/S1679-87592012000300009</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Thompson, G.; Dinofrio, E.O.; Alder, V.A.; Takahashi, K.T.; Hosie, G.W.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Thompson, G. <i>et al.</i>","Englishabstract":"There is no single instrument that can sample quantitatively the   complete spectrum of pelagic organisms, or even all the components of   zooplankton. Mesh size is the main factor affecting species selectivity in the   Continuous Plankton Recorder (CPR), implying a need to use multiple net systems   to fully characterize a community. The spatial distribution of copepod communities in the water masses of the western and eastern sectors of Drake Passage were studied using, respectively, a CPR and a Pump Net onboard system. For this purpose, and assuming that copepod community size structures of each of the three water masses were similar in both the sectors studied, the possibility of complementing CPR results using a Pump-Net onboard system was evaluated. The latter system allows the estimation of absolute abundances and has the advantage of solving two problems associated with CPR, namely mesh clogging and low catching efficiency. The contribution of the nauplius forms and species accurately identified with both samplers was analyzed. Although <i>Oithona     similis</i> dominated both communities, in the western sector small   species made a greater contribution than <i>Calanus simillimus</i>, the   opposite being true for the eastern sector. Nauplii and early copepodite stages of <i>O. similis </i>were missing from the CPR samples and represented between 69 and 79% of total copepod communities, whereas small calanoid copepods, C. simillimus copepodites and later stages of <i>O. similis</i> were inaccurately sampled by the CPR and represented between 14 and 18% of the copepod community. Hence, the Pump Net sampler is useful for complementing the semi-quantitative information of the CPR and for its calibration.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Copepod distribution in surface waters of the Drake Passage using Continuous Plankton Recorder and a pump-net onboard system","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-15 01:32:49.112678","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Copepod, Continuous Plankton Recorder, Pump Net sampler, Drake Passage, Southern Ocean","OtherDescriptors":null,"Notes":null,"AnaPub":2012,"MonPub":null,"DateUpdate":"2016-03-21","DateCreate":"2016-03-20","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000310536600009","VABBcode":null,"OpenAcc":1,"DOI":"10.1590/S1679-87592012000300009"},"refs":null,"anarec":{"AnaID":254219,"PubliDate":2012,"Pagination":"367-380","XtraPublOfAnaID":null,"ISBN":null,"Volume":"60","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":102219,"SerRR":"Brazilian Journal of Oceanography. Universidade de Sâo Paulo. Instituto Oceanográfico: São Paulo, SP.  ISSN 1679-8759; e-ISSN 1982-436X","StandardTitleSer":"Brazilian Journal of Oceanography","ISSN":"1679-8759","AbbrevSer":"Braz. J. 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