{"refrec":{"BRefID":75897,"RR":"<b>Pérez, V.; Fernández, E.; Marañón, E.; Serret, P.; Garcia-Soto, C.</b> (2005). Seasonal and interannual variability of chlorophyll a and primary production in the Equatorial Atlantic: in situ and remote sensing observations. <i>J. Plankton Res. 27(2)</i>: 189-197","BEntID":71566,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>J. Plankton Res. 27(2)</i>: 189-197","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Pérez, V.; Fernández, E.; Marañón, E.; Serret, P.; Garcia-Soto, C.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Pérez, V. <i>et al.</i>","Englishabstract":"The seasonal variability of phytoplankton in the Equatorial Atlantic was analysed using Sea-viewing Wide Field-of-view Sensor (SeaWiFS)-derived chlorophyll a (Chl a) concentration data from 1998 to 2001, together with in situ Chl a and primary production data obtained during seven cruises carried out between 1995 and 2000. Monthly averaged SeaWiFS Chl a distributions were in agreement with previous observations in the Equatorial Atlantic, showing marked differences between 10° W in the Eastern Tropical Atlantic (ETRA) and 25° W in the Western Tropical Atlantic (WTRA) provinces (Longhurst et al. 1995. J. Plankton Res., 17, 1245-1271). The seasonal cycle of SeaWiFS-derived Chl a concentration calculated for 0-10° S, 0-20° W (ETRA) is consistent with in situ Chl a measurements, with values ranging from 0.16 mg m<sup>-3</sup>, from February to April, to 0.52 mg m<sup>-3</sup> in August. Lower variability was observed in 10° N-10° S, 20-30° W (WTRA) where minimum and maximum concentrations occurred in April (0.15 mg m<sup>-3</sup>) and in August (0.24 mg m<sup>-3</sup>), respectively. A significant empirical relationship between depth-integrated primary production and in situ measured sea surface Chl a was found for ETRA, allowing us to estimate the seasonal cycle of depth-integrated primary production from SeaWiFS-derived Chl a. As for Chl a, this model was verified in a small area of the Eastern Equatorial Atlantic (0-10° S, 0-20° W), although in this instance it was not completely able to describe the magnitude and temporal variability of in situ primary production measurements. The annual euphotic depth-integrated primary production rate estimated for ETRA by our empirical model was 1.4 Gt C year<sup>-1</sup>, which represents 16% of the open ocean primary production estimated for the whole Atlantic Ocean","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Seasonal and interannual variability of chlorophyll a and primary production in the Equatorial Atlantic: in situ and remote sensing observations","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":2005,"MonPub":null,"DateUpdate":"2005-08-26","DateCreate":"2005-08-26","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000227356600007","VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":75897,"PubliDate":2005,"Pagination":"189-197","XtraPublOfAnaID":null,"ISBN":null,"Volume":"27","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43255,"SerRR":"Journal of Plankton Research. 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