{"refrec":{"BRefID":132068,"RR":"<b>Riera, P.; Hubas, C.</b> (2003). Trophic ecology of nematodes from various microhabitats of the Roscoff Aber Bay (France): Importance of stranded macroalgae evidenced through δ<sup>13</sup>C and δ<sup>15</sup>N. <i>Mar. Ecol. Prog. Ser. 260</i>: 151-159","BEntID":126086,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Mar. Ecol. Prog. Ser. 260</i>: 151-159","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Riera, P.; Hubas, C.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Riera, P.; Hubas, C.","Englishabstract":"Spatial and temporal diversity of food sources of intertidal nematodes of 3 different feeding habitats (estuarine muddy sediments, Spartina maritima and Juncus maritimus marshes) in the Roscoff Aber Bay, France, was assessed by the use of δ<sup>13</sup>C and δ<sup>15</sup>N values. Within the bay, nematodes largely dominated within the total meiofauna. Throughout the 3 sampling periods, the δ<sup>13</sup>C and δ<sup>15</sup>N values for nematodes and sources showed that the dominant sedimentary organic matter sources within the 3 microhabitats considered, namely terrigeneous inputs, detrital Spartina maritima or Juncus maritimus and marine POM, did not contribute a significant part of the diet to locally occurring nematodes. In fact, the δ<sup>13</sup>C and δ<sup>15</sup>N values indicate that organic matter derived from stranded macroalgae, mostly Enteromorpha sp. and Fucus spiralis, was the primary contributor to the assimilated food sources of nematodes; more readily utilisable sources (i.e. benthic diatoms) are virtually absent. 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