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NameLEDUC, D (2009 ). Description of Oncholaimus moanae sp nov (Nematoda: Oncholaimidae), with notes on feeding ecology based on isotopic and fatty acid composition JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM 89 2 337 -344
AuthorsLEDUC, D
Year2009
TitleDescription of Oncholaimus moanae sp nov (Nematoda: Oncholaimidae), with notes on feeding ecology based on isotopic and fatty acid composition
JournalJOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM 89 2 337 -344
Type Publication
NoteNeMys doc_id: 17880
Full textAvailable for editors  PDF available
AbstractA new free-living marine nematode species, Oncholaimus moanae sp. nov., is described from intertidal fine sand in southern New Zealand. Oncholaimus moanae sp. nov. can be distinguished from other species of the genus by the presence of a pre-cloacal papilla bearing four pairs of short, stout spines, a post-cloacal papilla, long (>70 mu m) spicules, and a demanian system with two openings situated laterally at level of uvette. The delta C-13 signature of O. moanae sp. nov. suggests that benthic microalgae are the main carbon source for this species, but an elevated delta N-18 signature suggests predatory feeding habits. The fatty acid composition of O. moanae sp. nov. is rich in highly unsaturated fatty acids, which are likely to originate from heterotrophic protists (e.g. ciliates). The data obtained in this study suggest, for the first time, that marine nematodes can be a high quality food source (i.e. rich in highly unsaturated fatty acids) to predators. Large nematodes living near or at the sediment surface, in particular, may represent an important trophic link between heterotrophic protists and higher trophic levels in marine sediments.
Taxa
(5)
Checked: verified by a taxonomic editorAdoncholaimus fuscus (Bastian, 1865) (ecology source)
Checked: verified by a taxonomic editorEnoploides longispiculosus Vitiello, 1967 (ecology source)
Checked: verified by a taxonomic editorMesacanthion diplechma (Southern, 1914) (ecology source)
Unreviewed: has not been verified by a taxonomic editorOncholaimus Dujardin, 1845 (taxonomy source)
Checked: verified by a taxonomic editorOncholaimus brachycercus de Man, 1889 (taxonomy source)
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2014-06-18 16:05:08Z  created  Vanaverbeke, Jan
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