Abstract
Adult females of Bathygordion cliffus new gen. and new sp. belonging to the family Ecbathyriontidae Humes, 1987 are described from the Gorda Ridge of the North Pacific Ocean. The copepods were found at depth of 2701 m on the margin of a hydrothermal vent field (Sea Cliff, GR-14) among invertebrates colonizing wood blocks deployed for 2 years. The new genus differs from the only monotypic genus Ecbathyrion Humes, 1987 reported from hydrothermal vents of the Galapagos Rift and the East Pacific Rise in a number of morphological features (such as three articulating abdominal somites, mandible with 1 palp bearing setae, base of leg 1 with inner seta, distal exopodal segment of leg 4 with four inner setae, leg 5 2-segmented), suggesting long evolutionary history of the deep-sea family endemic to hydrothermal vents of the East Pacific. The derived feature of the new genus is the presence of one terminal spine on the distal endopodal segment of leg 3 (instead of bearing two terminal setae in Ecbathyrion). The diagnosis of the family Ecbathyriontidae is emended.
Similar content being viewed by others
References
Cuvelier D, Beesau J, Ivanenko VN, Zeppilli D, Sarradin P-M, Sarrazin J (2014) First insights into macro-and meiofaunal colonisation patterns on paired wood/slate substrata at Atlantic deep-sea hydrothermal vents. Deep-Sea Res I Oceanogr Res Pap 87:70–81. doi:10.1016/j.dsr.2014.02.008
Gollner S, Ivanenko VN, Martínez Arbizu P (2008) A new species of deep-sea Tegastidae (Crustacea: Copepoda: Harpacticoida) from 9°50′N on the East Pacific Rise, with remarks on its ecology. Zootaxa 1866:323–326
Gollner S, Ivanenko VN, Arbizu PM, Bright M (2010) Advances in taxonomy, ecology, and biogeography of Dirivultidae (Copepoda) associated with chemosynthetic environments in the deep sea. PLoS ONE 5(8), e9801. doi:10.1371/journal.pone.0009801
Humes AG (1987) Copepoda from deep-sea hydrothermal vents. Bull Mar Sci 41:645–788
Humes AG, Gooding RV (1964) Method for studying the external anatomy of copepods. Crustaceana 6:238–240
Humes AG, Segonzac M (1998) Copepoda from deep-sea hydrothermal sites and cold seeps: description of a new species of Aphotopontius from the East Pacific Rise and general distribution. Cah Biol Mar 39:51–62
Ivanenko VN, Defaye D (2004a) A new and primitive genus and species of deep-sea Tegastidae (Crustacea, Copepoda, Harpacticoida) from the Mid-Atlantic Ridge, 37°N (Azores triple junction, Lucky Strike). Cah Biol Mar 45(3):255–268
Ivanenko VN, Defaye D (2004b) A new genus and species of deep-sea cyclopoids (Copepoda, Cyclopinidae) from the Mid-Atlantic Ridge (Azores Triple Junction, Lucky Strike). Zoosystema 26(1):49–64
Ivanenko VN, Defaye D (2004c) A new genus and species of the family Asterocheridae (Copepoda: Siphonostomatoida) from the East Equatorial Atlantic (Angola margin). Crustaceana 77:1131–1144
Ivanenko VN, Defaye D (2006) Copepoda. In: Desbruyères D et al (eds) Handbook of deep-Sea hydrothermal vent fauna. Second completely revised edition. Biologiezentrum der Oberösterreichischen Landesmuseen, Linz, pp 318–355 [Denisia, no. 18.]
Ivanenko VN, Defaye D, Segonzac M, Khripounoff A, Sarrazin J, Ferrari FD (2011a) A new species of Exrima, synonymy of four species of Aphotopontius, Stygiopontius and Rhogobius, and record of first copepodid stage of Dirivultidae (Copepoda: Siphonostomatoida) from deep-sea hydrothermal vents of the East Pacific Rise (13°N). J Mar Biol Assoc U K 91:1547–1559. doi:10.1017/s0025315411000178
Ivanenko VN, Ferrari FD, Defaye D, Sarradin P-M, Sarrazin J (2011b) Description, distribution and microhabitats of a new species of Tisbe (Copepoda: Harpacticoida: Tisbidae) from a deep-sea hydrothermal vent field at the Mid-Atlantic Ridge (37°N, Lucky Strike). Cah Biol Mar 52:89–106
Ivanenko VN, Corgosinho PHC, Ferrari FD, Sarradin P-M, Sarrazin J (2012) Microhabitat distribution of Smacigastes micheli (Copepoda: Harpacticoida: Tegastidae) from deep-sea hydrothermal vents at the Mid-Atlantic Ridge, 37°N (Lucky Strike), with a morphological description of the nauplius. Mar Ecol 33(2):246–256. doi:10.1111/j.1439-0485.2011.00484.x
Voight JR (2005) First report of the enigmatic echinoderm Xyloplax from the North Pacific. Biol Bull 208:77–80
Voight JR (2007) Experimental deep-sea deployments reveal diverse Northeast Pacific wood-boring bivalves of Xylophagainae (Myoida: Pholadidae). J Moll Stud 73:377–391. doi:10.1093/mollus/eym034
Acknowledgments
We are grateful to Janet Voight who conducted field work with support of NSF (grant DEB-0103690). Microscopic work was conducted with support of Deutsches Zentrum für Marine Biodiversitätsforschung of Senckenberg Research Institute (Wilhelmshaven, Germany). Illustrative and descriptive work was conducted with support of the Russian Foundation for Basic Research (#14-50-00029); data analysis and paper preparation was conducted with support of the Russian Foundation for Basic Research (#15-54-78061). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by M. Schratzberger
This article is registered in ZooBank under urn:lsid:zoobank.org:pub:D5632A63-3EFB-452D-813A-0E9D7A0E8474.
Rights and permissions
About this article
Cite this article
Ivanenko, V.N., Arbizu, P.M. A new deep-sea genus and species of the family Ecbathyriontidae (Copepoda: Siphonostomatoida) from the Gorda Ridge (North Pacific Ocean). Mar Biodiv 48, 195–201 (2018). https://doi.org/10.1007/s12526-016-0570-6
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12526-016-0570-6