{"refrec":{"BRefID":99042,"RR":"<b>Neira, C.; Hoepner, T.</b> (1994). The role of <i>Heteromastus filiformis</i> (Capitellidae, Polychaeta) in organic carbon cycling. <i>Ophelia 39(1)</i>: 55-73. <a href=\"https://dx.doi.org/10.1080/00785326.1994.10429902\" target=\"_blank\">https://dx.doi.org/10.1080/00785326.1994.10429902</a>","BEntID":94309,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":0,"RefStringPartII":". <i>Ophelia 39(1)</i>: 55-73. <a href=\"https://dx.doi.org/10.1080/00785326.1994.10429902\" target=\"_blank\">https://dx.doi.org/10.1080/00785326.1994.10429902</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Neira, C.; Hoepner, T.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Neira, C.; Hoepner, T.","Englishabstract":"Carbon transport rates were estimated from the pellet production rates and the organic carbon content of fresh fecal pellets of <i>Heteromastus filiformis</i>. With an annual mean individual density of 1.200 per m<sup>2</sup>, an annual mean pellet production of 36 kg/m<sup>2</sup> (dry weight) and an annual mean carbon content of 2% in the pellets, <i>Heteromastus</i> brings from about 20 cm depth to the surface 2 g C/m<sup>2</sup>/day or 730 g C/m<sup>2</sup>/year. In fresh fecal pellets the content of finer particles was two-fold, and the content of organic carbon in the pellets was 2.4-fold higher than in the feeding zone sediment. Fine particles in the pellets are richer in organic carbon and protein than those in deep sediment. This points to selective feeding. Meiofauna accelerated the destruction of <i>Heteromastus</i> pellets. After 20 days in the presence of meiofauna, only 15% of the initial pellets were still intact, i.e. with sharp margins, while 79% were partially destructed but were still recognizable as such. In the absence of meiofauna 96% of the pellets were still intact. 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