{"refrec":{"BRefID":289525,"RR":"<b>Zhu, G.; Zhang, H.; Yang, Y.; Wang, S.; Wei, L.; Yang, Q.</b> (2018). Upper trophic structure in the Atlantic Patagonian shelf break as inferred from stable isotope analysis. <i>Chin. J. Oceanol. Limnol. 36(3)</i>: 717-725. <a href=\"https://dx.doi.org/10.1007/s00343-018-6340-5\" target=\"_blank\">https://dx.doi.org/10.1007/s00343-018-6340-5</a>","BEntID":281563,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Chin. J. Oceanol. Limnol. 36(3)</i>: 717-725. <a href=\"https://dx.doi.org/10.1007/s00343-018-6340-5\" target=\"_blank\">https://dx.doi.org/10.1007/s00343-018-6340-5</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Zhu, G.; Zhang, H.; Yang, Y.; Wang, S.; Wei, L.; Yang, Q.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Zhu, G. <i>et al.</i>","Englishabstract":"The Patagonian Shelf is a very productive region with different ecosystem structures. A long history of fishing in the Southwestern Atlantic Ocean combined with a complex hydrographic structure, with a permanent front over the shelf-break and different coastal frontal regions, and a wide non-frontal area in between have made the food web in this area more complex and have resulted in changes to the spatial-temporal scale. Stable isotopes of carbon and nitrogen were used to determine the trophic structure of the Patagonian shelf break which was previously poorly understood. The results indicated that the average δ<sup>15</sup>N value of pelagic guild (<i>Illex argentinus</i>) was remarkable lower than those of the other guilds. The δ<sup>13</sup>C values of almost all species ranged from -17‰ to -18‰, but <i>Stromateus brasiliensis</i> had a significant lower δ<sup>13</sup>C value. Compared with the southern Patagonian shelf, short food chain length also occurred. The impact of complex oceanographic structures has resulted in food web structure change to the temporal-spatial scale on the Patagonian shelf. The Patagonian shelf break can be considered as a separated ecosystem structure with lower δ<sup>15</sup>N values.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Upper trophic structure in the Atlantic Patagonian shelf break as inferred from stable isotope analysis","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-17 01:32:16.148443","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"13C; 15N; trophic structure; Patagonian shelf break ","OtherDescriptors":null,"Notes":null,"AnaPub":2018,"MonPub":null,"DateUpdate":"2019-02-28","DateCreate":"2017-09-25","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000438791100011","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s00343-018-6340-5"},"refs":null,"anarec":{"AnaID":289525,"PubliDate":2018,"Pagination":"717-725","XtraPublOfAnaID":null,"ISBN":null,"Volume":"36","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42739,"SerRR":"Chinese Journal of Oceanology and Limnology. 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