More diverse than expected: distributional patterns of Oecidiobranchus Hessler, 1970 (Isopoda, Asellota) on the Greenland-Iceland-Faeroe Ridge based on molecular markers
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Oecidiobranchus (Isopoda, Asellota) is distinctive among asellote isopod genera in that most of its known species occur in the Nordic Seas and the Arctic Ocean. Some of these species are known only from a few specimens (i.e., poorly known). We used a combined morphological and genetic approach to evaluate the diversity of Oecidiobranchus species in this region. On the basis of genetics, at least three species were recognized, representing Oecidiobranchus cf. nanseni, Oecidiobranchus cf. plebejum, and a third, probably undescribed species. Oecidiobranchus cf. plebejum was found at several locations to the north of the large Greenland-Iceland-Faeroe Ridge, while O. cf. nanseni occurred on both sides of the ridge; temporal or spatial changes during and after the last ice age may have contributed to the genetic differences of populations on each side of the ridge. The wide distribution of the genus in the Nordic Seas and the Arctic Ocean suggests that the genus has been present there for an extensive period.
KeywordsIsopoda IceAGE GIF Ridge Circum-Icelandic distribution DNA barcoding Biogeography Population
We would like to thank the crews of RV Metor and RV Poseidon for their important help and contribution. We wish to thank all pickers and sorters during the IceAGE expeditions for providing a unique set of specimens. Without the help of Karen Jeskulke, Sarah Schnurr, and Andrea Ormos, working so hard on producing high-quality PCR products at the Smithsonian, the whole work would have been much slower. We thank Anna M. Jażdżewska for help with the data and two anonymous reviewers whose suggestions improved the manuscript.
This study was supported by the German Science Foundation under grant no. BR3843/6-1. This grant supported the travels of Robert Jennings and Saskia Brix within the American-German cooperation in the frame of the IceAGE project.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
All applicable international, national, and/or institutional guidelines for the care and use of animals were followed by the authors.
Permits and approval of field or observational studies have been obtained by the authors, if applicable.
- Bober S, Riehl T, Henne S, Brandt A (2017) New Macrostylidae (Isopoda) from the Northwest Pacific Basin described by means of integrative taxonomy with reference to geographical barriers in the abyss. Zool J Linnean Soc 1–53. https://doi.org/10.1093/zoolinnean/zlx042
- Brix S (2013) IceAGE - Icelandic marine Animals: Genetics and Ecology, Cruise No. POS456, IceAGE2, 20.07.2013 – 04.08.2013, Kiel (Germany) - Reykjavik (Iceland). Report published 2013 via Deutsche Zentrum für Marine Biodiversitätsforschung, Senckenberg am MeerGoogle Scholar
- Brix S, Meißner K, Stransky B, Halanych KM, Jennings RM, Kocot KM, Svavarsson J (2014a) The IceAGE project— a follow up of BIOICE. Polish Polar Res 35:141–150Google Scholar
- Brix S, Riehl T, Leese F (2011) First genetic data for species of the genus Haploniscus Richardson, 1908 (Isopoda: Asellota: Haploniscidae) from neighbouring deep-sea basins in the South Atlantic. Zootaxa 2838:79–84Google Scholar
- Dahl E, Laubier L, Sibuet M, Strömberg J-O (1976) Some quantitative results on benthic communities of the deep Norwegian Sea. Astarte 9:61–79Google Scholar
- Drummond AJ, Ashton B, Buxton S, Cheung M, Cooper A, Duran C, Field M, Heled J, Kearse M, Markowitz S, Moir R, Stones-Havas S, Sturrock S, Thierer T, Wilson A (2011) Geneious v.5.4, Available from http://www.geneious.com
- Gurjanova E (1946) New species of Isopoda and Amphipoda from the Arctic Ocean. Compendium of results, Drifting Expedition, Icebreaker “Cedov”, 1937–1940. Moscow 3:272–297Google Scholar
- Hansen HJ (1916) Crustacea Malacostraca: the order Isopoda. Dan Ingolf Exped 3:1–262Google Scholar
- Hessler RR (1970) The Desmosomatidae (Isopoda, Asellota) of the Gay Head-Bermuda Transect. Bull Scripps Inst Oceanogr 15:1–185Google Scholar
- Jennings RM, Etter RJ, Ficarra L (2013) Population differentiation and species formation in the deep sea: the potential role of environmental gradients and depth. PLoS One. https://doi.org/10.1371/journal.pone.0077594
- Just J (1980) Polar Sea abyssal and deep bathyal Isopoda (Crustacea). Steenstrupia 6(14):197–230Google Scholar
- Kaiser S (2009) Nymphodora gen. nov., a new genus of Nannoniscidae Hansen, 1916 (Isopoda, Asellota, Janiroidea) from the high Arctic. Zootaxa 2096:371–380Google Scholar
- Kapli T, Lutteropp S, Zhang J, Kobert K, Pavlidis P, Stamatakis A, Flouri T (2016) Multi-rate Poisson tree processes for single-locus species delimitation under maximum likelihood and Markov chain Monte Carlo. Bioinformatics 33(11):1630–1638Google Scholar
- Kihara TC, Arbizu PM (2012) Three new species of Cerviniella Smirnov, 1946 (Copepoda: Harpacticoida) from the Arctic. Zootaxa 3345:1–33Google Scholar
- Kussakin OG (1999) Marine and brackish-water isopod crustaceans (Isopoda) of cold and temperate waters of the northern hemisphere. Vol. 3, Suborder Asellota, part 2. Families Joeropsididae, Nannoniscidae, Desmosomatidae, Macrostylidae. Opredeliteli po Faune, Izdavaemye Zoologicheskim Muzeem Akademii Nauk 169:1–384 (in Russian)Google Scholar
- Leigh JW, Bryant D (2015) popart: full-feature software for haplotype network construction. Methods Ecol Evol. https://doi.org/10.1111/2041-210X.12410
- Malyutina MV, Kussakin OG (1996a) Addition to the Polar Sea bathyal and abyssal isopoda (Crustacea). Part 1. Anthuridea, Valvifera, Asellota (Ischnomesidae, Macrostylidae, Nannoniscidae). Zoosystem Rossica 4:49–62Google Scholar
- Malyutina MV, Kussakin OG (1996b) Additions to the Polar Sea bathyal and abyssal Isopoda (Crustacea, Malacostraca), Part 2. Asellota, Desmosomatidae. Zoosystem Rossica 4:239–260Google Scholar
- Rambaut A, Drummond AJ. (2014) Tracer v1.6 (http://tree.bio.ed.ac.uk/software/tracer)
- Raupach MJ, Malyutina M, Brandt A, Wägele J-W (2007) Molecular data reveal a highly diverse species flock within the munnopsoid deep-sea isopod Betamorpha fusiformis (Barnard, 1920) (Crustacea : Isopoda : Asellota) in the Southern Ocean. Deep-Sea Res II 54:1820–1830. https://doi.org/10.1016/j.dsr2.2007.07.009 CrossRefGoogle Scholar
- Rex M, Etter RJ (2010) Deep-sea biodiversity. Harvard University Press, Cambridge, 354 ppGoogle Scholar
- Rothlisberg PC, Pearcy WG (1977) An epibenthic sampler used to study the ontogeny of vertical migration of Pandalus jordani (Decapoda, Caridea). Fish Bull 74:994–997Google Scholar
- Schindelin J, Arganda-Carreras I, Frise E, Kaynig V, Longair M, Pietzsch T, Preibisch S, Rueden C, Saalfeld S, Schmid B, Tinevez JY, White DJ, Hartenstein V, Eliceiri K, Tomancak P, Cardona A (2012) Fiji: an open-source platform for biological-image analysis. Nat Methods 9:676–682CrossRefPubMedGoogle Scholar
- Stefánsson U (1962) North Icelandic waters. Rit Fiskid 3:1–269Google Scholar