{"refrec":{"BRefID":319608,"RR":"<b>Lemoine, M.; Moens, T.; Vafeiadou, A.-M.; Bezerra, L.A.V.; Lana, P.</b> (2019). Resource utilization of puffer fish in a subtropical bay as revealed by stable isotope analysis and food web modeling. <i>Mar. Ecol. Prog. Ser. 626</i>: 161-175. <a href=\"https://dx.doi.org/10.3354/meps13045\" target=\"_blank\">https://dx.doi.org/10.3354/meps13045</a>","BEntID":313047,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Mar. Ecol. Prog. Ser. 626</i>: 161-175. <a href=\"https://dx.doi.org/10.3354/meps13045\" target=\"_blank\">https://dx.doi.org/10.3354/meps13045</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Lemoine, M.; Moens, T.; Vafeiadou, A.-M.; Bezerra, L.A.V.; Lana, P.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Lemoine, M. <i>et al.</i>","Englishabstract":"Estuaries often comprise a habitat mosaic, the connectivity of which depends in part on mobile organisms that move in between habitats for feeding and breeding. We assessed resource utilization by 2 co-existing puffer fish species, <i>Sphoeroides testudineus</i> and <i>Sphoeroides greeleyi</i>, in mangroves, saltmarshes and shallow subtidal channels of a subtropical bay. We hypothesized that puffer fish migrate into mangroves mainly to feed and that the coexistence of the 2 species may be explained by differences in resource utilization and/or by a differential preference for different foraging grounds. We combined a stable isotope approach with an Ecopath model that contrasted detritus-driven and herbivory-driven foodweb scenarios. The most parsimonious foodweb scenario involved the feeding of puffer fish on benthic invertebrates associated with <i>Spartina</i> marshes. This emphasizes the importance of saltmarshes as feeding grounds for both puffer fish species, independently of where they were sampled. Small differences in isotopic signatures between <i>S. greeleyi</i> and <i>S. testudineus</i> indicated major resource overlap, but also some degree of food partitioning probably through the selection of differently sized prey. The smaller <i>S. greeleyi</i> consistently had a slightly higher trophic level than the larger <i>S. testudineus. S. testudineus</i> had larger isotopic niche sizes as a consequence of greater inter-individual variation in resource use. Our results emphasize the importance of considering multiple habitats and foodweb scenarios when investigating resource use and species interactions in estuarine ecosystems.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Resource utilization of puffer fish in a subtropical bay as revealed by stable isotope analysis and food web modeling","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-20 01:32:35.436896","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Isotopic analysis;  Isotopic analysis; Diet;  Mangrove; Saltmarsh; Subtropical bay; Habitat connectivity","OtherDescriptors":null,"Notes":null,"AnaPub":2019,"MonPub":null,"DateUpdate":"2021-05-17","DateCreate":"2019-12-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000485739800013","VABBcode":null,"OpenAcc":0,"DOI":"10.3354/meps13045"},"refs":null,"anarec":{"AnaID":319608,"PubliDate":2019,"Pagination":"161-175","XtraPublOfAnaID":null,"ISBN":null,"Volume":"626","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43354,"SerRR":"Marine Ecology Progress Series. 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