Abstract
Recent sampling of the benthos has been undertaken around the Håkon Mosby Mud Volcano (HMMV) at around 1280 m depth on the Norwegian-Barents-Spitsbergen continental margin and at two seep-sites further south on the Norwegian Margin, the Nyegga seep-site and the Storegga Slide, at about 730 m depth. The collected material included eleven species of tanaidomorph tanaidacean, ten of which (from eight genera) are analyzed herein. Four of these species, one each in the genera Pseudotanais, Cryptocopoides, Obesutanais, and Akanthophoreus, are new to science. Supplementary descriptions are given for two species originally discovered during the 19th century Ingolf expedition, Typhlotanais mixtus and Meromonakantha irregularis. The genus Magotanais is synonymized with Cryptocopoides; the subfamily Akanthophoreinae, Sieg is restricted and raised to family-rank. The evolution of potentially endemic taxa at ventand seep-sites is discussed.References
Bamber R.N., Bird G.J., Błażewicz-Paszkowycz, M. & Galil B. (2009) Tanaidaceans (Crustacea: Malacostraca: Peracarida) from soft-sediment habitats off Israel, Eastern Mediterranean. Zootaxa, 2109, 1–44.
Bird, G.J. (1999) A new species of Pseudotanais (Crustacea, Tanaidacea) from cold seeps in the deep Caribbean, collected by the French submersible Nautile. Zoosystema, 21 (3), 445–451.
Bird, G.J. (2001) Tanaidacea of the Atlantic Margin. The AFEN surveys of 1996 and 1998. Unpublished report to UKOOA, February 2001. 92 pp.
Bird, G.J. (2004) Tanaidacea (Crustacea) of the Northeast Atlantic: non-filiform species of Anarthruridae Lang from the Atlantic Margin. Zootaxa, 471, 1–44.
Bird, G. J. (2007) Family incertae cedis [sic]. In: Larsen, K. & Shimomura, M. (Eds) 2007. Tanaidacea (Crustacea: Peracarida) from Japan III. The deep trenches; the Kurile-Kamchatka Trench and Japan Trench. Zootaxa, 1599, 121–149.
Bird, G.J. (2010) Tanaidacea (Crustacea, Peracarida) of the North-east Atlantic: the Agathotanaidae of the AFEN, BIOFAR and BIOICE projects, with a description of a new species of Paragathotanais Lang. Zootaxa, 2730, 1–22.
Bird, G.J. & Holdich, D.M. (1984) New deep-sea leptognathiid tanaids (Crustacea, Tanaidacea) from the north-east Atlantic. Zoologica Scripta, 13 (4), 285–315.
Bird, G.J. & Holdich, D.M. (1989a) Tanaidacea (Crustacea) of the north-east Atlantic: the subfamily Pseudotanainae (Pseudotanaidae) and the family Nototanaidae. Zoological Journal of the Linnean Society, 97, 233–298.
Bird, G.J. & Holdich, D.M. (1989b) Recolonisation of artificial sediments in the deep Bay of Biscay by tanaidaceans (Crustacea: Peracarida), with a description of a new species of Pseudotanais. Journal of the Marine Biological Association of the United Kingdom, 69, 307–317.
Błażewicz-Paszkowycz, M. (2007) A revision of the family Typhlotanaidae Sieg 1984 (Crustacea: Tanaidacea) with the remarks on the Nototanaidae Sieg, 1976. Zootaxa, 1598, 1–141.
Błażewicz-Paszkowycz, M. & Bamber, R.N. (2007) New apseudomorph tanaidaceans (Crustacea: Peracarida: Tanaidacea) from Eastern Australia: Apseudidae, Whiteleggiidae, Metapseudidae and Pagurapseudidae. Memoirs of Museum Victoria, 64, 107–148.
Błażewicz-Paszkowycz, M., Bamber, R.N. & Cunha, M.R. (2011) A diversity hotspot: new tanaidomorph Tanaidacea (Crustacea: Peracarida) from submarine mud-volcanoes in the Gulf of Cadiz (North-east Atlantic). Zootaxa, 2769, 1–53.
Błażewicz-Paszkowycz, M. & Poore, G.C.B. (2008) Observations on phylogenetic relationships in Paratanaoidea (Tanaidacea; Tanaidomorpha). Poster abstract. Advances in Crustacean Phylogeny, October 7–11, 2008, pp. 68–69.
Brandt, A. (1997) Biodiversity of peracarid crustaceans (Malacostraca) from the shelf down to the deep Arctic Ocean. Biodiversity and Conservation, 6, 1533–1556.
Decker, C., Morineaux, M., Van Gaever, S., Caprais, J.C., Andersen, A., Gauthier, O., Olu, K. (in press) Habitat heterogeneity influences cold-seep macrofaunal communities: a multi-scale study along the Norwegian margin. Marine Ecology.
Foucher, J.P., Pierre, C., Decker, C., Rufine, L.R., Ker, S., Westbrook, G., Olu-Le Roy, K., Donval, J.P. & Charlou, J.L. (subm). Seabed observations of methane seepage at Nyegga chimneys off mid-Norway. Results from the Vicking cruise (2006): Marine Geology.
Foucher, J.P., Westbrook, G., Boetius, A., Ceramicola, S., Dupré, S., Mascle, A., Mienert, J., Pfannkuche, O. Pierre, C. & Praeg, D. (2009) Structure and drivers of cold-seep ecosystems. Oceanography, 22, 92–109.
Génio, L., Johnson, S.B., Vrijenhoek, R.C., Cunha, M.R., Tyler, P.A., Kiel, S. and Little, C.T.S. (2008) New record of ‘‘Bathymodiolus’’ mauritanicus Cosel 2002 from the Gulf of Cadiz (NE Atlantic) mud volcanoes. Journal of Shellfish Research, 27, 53–61.
Gebruk, A.V., Krylova, E.M., Lein, A.Y., Vinogradov, G.M., Anderson, E., Pimenov, N.V., Cherkashev, G.A. & Crane, K. (2003) Methane seep community of the Håkon Mosby mud volcano (the Norwegian Sea): Composition and trophic aspects. Sarsia, 88, 394–403.
Guţu, M. & Sieg, J. (1999) Ordre Tanaïdacés (Tanaidacea Hansen, 1895). Mémoires de l'Institute Océanographique, Monaco, 19, 353–389.
Hansen, H.J. (1887) Oversigt over de paa Dijmpha-Togtet indsamlede Krebsdyr. Dijmphna Togtets Zoology-Botany Udbytte Kopenhagen, 1886, 183–286.
Hansen, H.J. (1913) Crustacea Malacostraca. II. The Danish Ingolf Expedition Vol. III; 3. pp. 1–145, pls I–XII.
Hovland, M. & Svensen, S. (2006) Submarine pingoes: Indicators of shallow gas hydrates in a pockmark at Nyegga, Norwegian Sea. Marine Geology, 228, 15–23.
Jóźwiak, P., Stępień, A. & Błażewicz-Paszkowycz, M. (2009) A revision of the genus Paranarthrurella Lang, 1971a (Crustacea: Tanaidacea). Zootaxa, 2238, 56–68.
Just, J. (1970). Decapoda, Mysidacea, Isopoda, and Tanaidacea from Jørgen Brønlund Fjord, North Greenland. Meddelelser om Grønland udgivne af Kommissionen for Videnskabelige Undersøgelser i Grønland, 184 (9), 1–32.
Kudinova-Pasternak, R.K. (1981) Tanaidacea. In: Kuznetsov A.P. & Mironov, A.N. (Eds.), Benthos of the submarine mountains Markus necker and adjacent Pacific regions Akademiya Nauk SSSR, Moscow,. pp 94–112.
Kudinova-Pasternak, R.K. (1985) Tanaidacea (Crustacea, Malacostraca) collected at the summit and at foot of Great-Meteor Seamount. Trudy Instituta Okeanologii, 120, 52–64.
Lang, K. (1968) Deep-Sea Tanaidacea. In: Wolff, T. (Ed.) Galathea Report. Danish Science Press, Copenhagen, vol. 9, 23–210.
Lang, K. (1971) Taxonomische und phylogenetische Untersuchungen über die Tanaidaceen. 6. Revision der Gattung Paranarthrura Hansen, 1913, und Aufstellung von zwei neuen Familien, vier neuen Gattungen und zwei neuen Arten. Arkiv för Zoologi, Series 2, 23, 361–401.
Larsen, K. (2003) The tanaidacean fauna (Peracarida) from a deep-sea cold-seep in the Gulf of Mexico. Journal of Crustacean Biology, 23, 777–794.
Larsen, K. (2005) Deep-sea Tanaidacea (Peracarida) from the Gulf of Mexico. Crustacean Monographs, 5, 1–381.
Larsen, K. (2006) Tanaidacea (Crustacea; Peracarida) from chemically reduced habitats – the hydrothermal vent system of the Juan de Fuca Ridge, Escabana Trough and Gorda Ridge, northeast Pacific. Zootaxa, 1164, 1–33.
Larsen, K., Błażewicz-Paszkowycz, M. & Cunha, M.R. (2006) Tanaidacean (Crustacea: Peracarida) fauna from chemically reduced habitats – the Lucky Strike hydrothermal vent system, Mid-Atlantic Ridge [sic]. Zootaxa, 1187, 1–36.
Larsen, K. & Wilson, G.D.F. (2002) Tanaidacean phylogeny, the first step: the superfamily Paratanaidoidea. Journal of Zoological Systematics and Evolutionary Research, 40, 205–222.
McLelland, J.C. (2007) Family Pseudotanaidae Sieg, 1976. In: Larsen K & Shimomura M. (Eds) 2007. Tanaidacea (Crustacea: Peracarida) from Japan III. The deep trenches; the Kurile-Kamchatka Trench and Japan Trench. Zootaxa, 1599, 87–99.
Schander, C., Rapp, H.T., Kongsrud, J.A., Bakken, T., Berge, J., Cochrane, S., Oug, E., Byrkjedal, I., Todt, C., Cedhagen, T., Fosshagen, A., Gebruk, A., Larsen, K., Levin, Li., Obst, M., Pleijel, F., Stöhr, S., Warén, A., Mikkelsen, N.T., Hadler-Jacobsen, S., Keuning, R., Petersen, K.H., Thorseth, I.H. & Pedersen, R.B. (2010) The fauna of hydrothermal vents on the Mohn Ridge (North Atlantic). Marine Biology Research, 6, 155–71.
Norman, A.M. & Stebbing, T.R.R. (1886) On the Crustacea Isopoda of the 'Lightning', 'Porcupine', and 'Valorous' Expeditions. Part I.- Apseudidae, Tanaidae, Anthuridae. Transactions of the Zoological Society of London, 12 (4), 77–141.
Sars, G.O. (1877) Prodromus descriptionis Crustaceorum ft Pycnogonidarum, qvæ in Expeditione Norvegica anno 1876, observavit. Archiv for Mathematik og Naturvidenskab, 2, 237–271.
Sieg, J. (1977) Taxonomische Monographie der familie Pseudotanaidae (Crustacea, Tanaidacea). Mitteilungen aus dem Zoologischen Museum in Berlin, 53, 1–109.
Sieg, J. (1983) Tanaidacea. In: Gruner, H.E & Holthuis L.B. (Eds), Crustaceorum Catalogus, W. Junk, Belgium. Vol 6, 1–552.
Sieg, J. (1986a) Tanaidacea (Crustacea) von der Antarktis und Subantarktis. II. Tanaidacea gesammelt von Dr. J. W. Wagele wahrend der Deutschen Antarktis Expedition 1983. Mitteilungen aus dem Zoologischen Museum der Universität Kiel, 2 (4), 1–80.
Sieg, J. (1986b) Biology of the Antarctic Seas XVIII. Crustacea Tanaidacea of the Antarctic and the Subantarctic. 1. On material collected at Tierra del Fuego, Isla de los Estados, and the west coast of the Antarctic Peninsula. Antarctic Research Series, 45, 1–180.
Sieg, J. & Dojiri, M. (1991) Two new species and a new genus of the suborder Tanaidomorpha (Crustacea:Tanaidacea) from Californian waters. Journal of Natural History, 25, 1493–1512.
Van Gaever, S., Raes, M., Pasotti, F. & Vanreusel, A. (2010) Spatial scale and habitat-dependent diversity patterns in nematode communities in three seepage related sites along the Norwegian Sea margin. Marine Ecology, 31, 66–77.
Vanhöffen, E. (1914) Die Isopoden der Deutschen Südpolar Expedition 1901–1903. Deutsche Südpolar-Expedition, 15, Zoologie 7, 447–598.
Vogt, P.R., Cherkashev, A., Ginsberg, G.D., Ivanov, G.I., Crane, K., Lein, A.Y., Sundvor, E., Pimenove, N.V. & Egorov, A.V. (1997) Haakon Mosby Mud Volcano: a warm methane seep with seafloor hydrates and chemosynthesis-based ecosystem in late Quaternary Slide Valley, Bear Island Fan, Barents Sea passive margin. EOS Transactions of the American Geophysical Union Supplement, 78 (17), 187–189.