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Dando, P. R.; Austen, M. C.; Burke, Jr. R. A.; Kendall, M. A.; Kennicutt, II M. C.; Judd, A. G.; Moore, D. C.; O'Hara, S. C. M.; Schmaljohann, R.; Southward, A. J. (1991). Ecology of a North Sea pockmark with an active methane seep. Marine Ecology Progress Series. 70: 49-63.
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Dando, P. R.; Austen, M. C.; Burke, Jr. R. A.; Kendall, M. A.; Kennicutt, II M. C.; Judd, A. G.; Moore, D. C.; O'Hara, S. C. M.; Schmaljohann, R.; Southward, A. J.
1991
Ecology of a North Sea pockmark with an active methane seep
Marine Ecology Progress Series
70: 49-63
Publication
NeMys doc_id: 17997
Available for editors  PDF available
??At a large North Sea pockmark, with active methane seeps, surface sediments were found to have higher insoluble sulphide concentrations than sedlments from the surrounding area. The fauna of the pockmark was characterized by 2 species which have not pi-evlously been reported from the Fladen Ground in the northern North Sea. These species were a b~valveT, hyasira sarsi (which is known to contain endosymbiotic sulphur-oxidising bacteria) and a mouthless and gutless nematode, Astomonerna sp., which also contains endosymbiotic bacteria The nematode was the dominant meiofauna species in the pockmark sediments. Both macro-lnfauna and total nematodes were in low abundance in samples taken from the base of the pockmark. Sediment samples from the pockmark contained numerous otoliths, implying that substantial winnowing of the sediment had taken place. This was supported by studies on the sulphide concentrations in the sediment which showed multiple layering of the sediments on the sides of the pockmark, suggesting displacement. The carbon isotope compositions (6I3c) of the tissues of benthic animals from in and around the pockmark were generally in the range -16 to -2O%, indicating that little methane-derived carbon was contributing to their nutrition. T sarsi had the most 13c-depleted tissues, -31.4 to -35.1 L, confirming the nutritional dependence of this species on chemoautotrophic bacteria that utilize reduced sulphur
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Axonolaimus de Man, 1889 (additional source)
Calyptronema Marion, 1870 (ecology source)
Camacolaimus de Man, 1889 accepted as Deontolaimus de Man, 1880 (additional source)
Chromadorita Filipjev, 1922 (ecology source)
Daptonema Cobb, 1920 (additional source)
Desmodora de Man, 1889 (additional source)
Desmodora tenuispiculum Allgén, 1928 accepted as Desmodorella tenuispiculum (Allgén, 1928) (additional source)
Desmoscolex Claparède, 1863 (additional source)
Eleutherolaimus Filipjev, 1922 (additional source)
Eumorpholaimus Schulz, 1932 accepted as Eleutherolaimus Filipjev, 1922 (additional source)
Halalaimus de Man, 1888 (ecology source)
Leptolaimus de Man, 1876 (additional source)
Linhomoeus Bastian, 1865 (additional source)
Metalinhomoeus de Man, 1907 (additional source)
Microlaimus de Man, 1880 (additional source)
Monhystera Bastian, 1865 (additional source)
Odontophora Bütschli, 1874 (additional source)
Oncholaimidae Filipjev, 1916 (ecology source)
Oxystomina Filipjev, 1918 (ecology source)
Paralinhomoeus de Man, 1907 accepted as Linhomoeus Bastian, 1865 (additional source)
Platycoma Cobb, 1894 (ecology source)
Pselionema Cobb, 1933 (additional source)
Quadricoma Filipjev, 1922 accepted as Tricoma (Quadricoma) (Filipjev, 1922) (additional source)
Rhabdodemania Baylis & Daubney, 1926 (ecology source)
Sabatieria Rouville, 1903 (additional source)
Siphonolaimus de Man, 1893 (additional source)
Sphaerolaimus Bastian, 1865 (additional source)
Terschellingia de Man, 1888 (additional source)
Theristus Bastian, 1865 (additional source)
Tricoma Cobb, 1894 (additional source)
Viscosia de Man, 1890 (ecology source)

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