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Type: Article
Published: 2023-01-19
Page range: 79-89
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A new deep-sea eelpout of the genus Pyrolycus (Teleostei: Zoarcidae) associated with a hydrothermal seep on the Pacific margin of Costa Rica

1Marine Vertebrate Collection, Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0244, USA.
2Benthic Invertebrate Collection, Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0244, USA.
California State Polytechnic University, Humboldt, Arcata, CA, USA.
4Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark. Norwegian College of Fishery Science, UiT—The Arctic University of Norway, Tromsø, Norway.
Pisces Jacó Scar Lycodinae methane seep Reducing ecosystem Zoarcoidei

Abstract

A new species of the zoarcid genus Pyrolycus Machida & Hashimoto, 2002, Pyrolycus jaco sp. nov., is described from a hydrothermal seep environment named Jacó Scar in the eastern Pacific of Costa Rica. Four specimens were collected in 2018 between 1746–1795 m among tubeworm colonies around the seep. The new species is differentiated from its two western Pacific congeners by having a shorter head, snout, jaw, and pectoral fins. It is further diagnosed by having three postorbital pores and two occipital pores. Molecular sequences of the cytochrome c oxidase I gene are provided and are the first for the genus. The character states indicating miniaturization in this species are discussed. This is the first vertebrate species known from this composite reducing ecosystem and is the fourth hydrothermally-associated zoarcid from the eastern Pacific.

 

References

  1. Aguado, M.T. & Rouse, G.W. (2011) Nautiliniellidae (Annelida) from Costa Rican cold seeps and a western Pacific hydrothermal vent, with description of four new species. Systematics and Biodiversity, 9, 109–131. https://doi.org/10.1080/14772000.2011.569033
    Anderson, M.E. (1994) Systematics and osteology of the Zoarcidae (Teleostei: Perciformes). J. L. B. Smith Institute of Ichthyology Ichthyological Bulletin, 1994, 1–120.
    Anderson, M.E. (1995) The eelpout genera Lycenchelys Gill and Taranetzella Andriashev (Teleostei: Zoarcidae) in the eastern Pacific, with descriptions of nine new species. Proceedings of the California Academy of Sciences, 49, 55–113.
    Anderson, M.E. (2006) Studies on the Zoarcidae (Teleostei: Perciformes) of the Southern Hemisphere. XI. A new species of Pyrolycus from the Kermadec Ridge. Journal of the Royal Society of New Zealand, 36, 63–68. https://doi.org/10.1080/03014223.2006.9517800
    Bergquist, D.C., Urcuyo, I.A. & Fisher, C.R. (2002) Establishment and persistence of seep vestimentiferan aggregations on the upper Louisiana slope of the Gulf of Mexico. Marine Ecology Progress Series, 241, 89–98. https://doi.org/10.3354/meps241089
    Bohrmann, G., Heeschen, K., Jung, C., Weinrebe, W., Baranov, B., Cailleau, B., Heath, R., Hühnerbach, V., Hort, M., Masson, D. & Trummer, I. (2002) Widespread fluid expulsion along the seafloor of the Costa Rica convergent margin. Terra Nova, 14, 69–79. https://doi.org/10.1046/j.1365-3121.2002.00400.x
    Borda, E., Kudenov, J.D., Bienhold, C. & Rouse, G.W. (2012) Towards a revised Amphinomidae (Annelida, Amphinomida): Description and affinities of a new genus and species from the Nile Deep-sea Fan, Mediterranean Sea. Zoologica Scripta, 41, 307–325. https://doi.org/10.1111/j.1463-6409.2012.00529.x
    Britz, R., Conway, K.W. & Rüber, L. (2009) Spectacular morphological novelty in a miniature cyprinid fish, Danionella dracula n. sp. Proceedings of the Royal Society B: Biological Sciences, 276, 2179–2186. https://doi.org/10.1098/rspb.2009.0141
    de Melo, M.R.S., Gomes, A.A., Møller, P.R. & Nielsen, J.G. (2022) A new species of the rare deep-sea genus Sciadonus Garman, 1899 (Teleostei, Bythitidae) from off Brazil, with a discussion of the evolution of troglomorphism and miniaturization in the aphyonid clade. Deep Sea Research Part I: Oceanographic Research Papers, 180, 103684. https://doi.org/10.1016/j.dsr.2021.103684
    Folmer, O., Black, M., Hoeh, W., Lutz, R. & Vrijenhoek, R. (1994) DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Molecular Marine Biology and Biotechnology, 3, 294–299.
    Fricke, R., Eschmeyer, W.N. & Van der Laan, R. (Eds.) (2022) Eschmeyer’s Catalog of Fishes: genera, species, references. Available from: http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatmain.asp (accessed 18 July 2022)
    Hatch, A.S., Liew, H., Hourdez, S. & Rouse, G.W. (2020) Hungry scale worms phylogenetics of Peinaleopolynoe (Polynoidae, Annelida), with four new species. ZooKeys, 2020, 27–74. https://doi.org/10.3897/zookeys.932.48532
    Levin, L.A., Orphan, V.J., Rouse, G.W., Rathburn, A.E., Ussler, W., Cook, G.S., Goffredi, S.K., Perez, E.M., Waren, A., Grupe, B.M., Chadwick, G. & Strickrott, B. (2012) A hydrothermal seep on the Costa Rica margin: Middle ground in a continuum of reducing ecosystems. Proceedings of the Royal Society B: Biological Sciences, 279, 2580–2588. https://doi.org/10.1098/rspb.2012.0205
    Lindgren, J., Hatch, A.S., Hourdez, S., Seid, C.A. & Rouse, G.W. (2019) Phylogeny and biogeography of Branchipolynoe (Polynoidae, Phyllodocida, Aciculata, Annelida), with descriptions of five new species from methane seeps and hydrothermal vents. Diversity, 11, 153. https://doi.org/10.3390/d11090153
    Machida, Y. & Hashimoto, J. (2002) Pyrolycus manusanus, a new genus and species of deep-sea eelpout from a hydrothermal vent field in the Manus Basin, Papua New Guinea (Zoarcidae, Lycodinae). Ichthyological Research, 49, 1–6.
    Martin, J.W., Wall, A.R., Shank, T., Cha, H., Seid, C.A. & Rouse, G.W. (2018) A new species of Alvinocaris (Crustacea: Decapoda: Caridea: Alvinocarididae) from Costa Rican methane seeps. Zootaxa, 4504 (3), 418–430. https://doi.org/10.11646/zootaxa.4504.3.7
    Mau, S., Rehder, G., Sahling, H., Schleicher, T. & Linke, P. (2014) Seepage of methane at Jaco Scar, a slide caused by seamount subduction offshore Costa Rica. International Journal of Earth Sciences, 103, 1801–1815. https://doi.org/10.1007/s00531-012-0822-z
    McCowin, M.F., Feehery, C. & Rouse, G.W. (2020) Spanning the depths or depth-restricted: Three new species of Bathymodiolus (Bivalvia, Mytilidae) and a new record for the hydrothermal vent Bathymodiolus thermophilus at methane seeps along the Costa Rica margin. Deep-Sea Research Part I: Oceanographic Research Papers, 164, 103322. https://doi.org/10.1016/j.dsr.2020.103322
    Møller, P.R. (2003) Two new species of Pachycara Zugmayer (Teleostei: Zoarcidae) from the Indian ocean, with redescription of Pachycara shcherbachevi Anderson. Copeia, 2003 (2), 357–365. https://doi.org/10.1643/0045-8511(2003)003[0357:TNSOPZ]2.0.CO;2
    Pearson, K.A.M. & Rouse, G.W. (2022) Vampire Worms; A revision of Galapagomystides (Phyllodocidae, Annelida), with the description of three new species. Zootaxa, 5128 (4), 451–485. https://doi.org/10.11646/zootaxa.5128.4.1
    Priede, I.G. (2017) Deep-Sea Fishes: Biology, Diversity, Ecology and Fisheries. Cambridge University Press, Cambridge, 504 pp. https://doi.org/10.1017/9781316018330
    Rouse, G.W., Carvajal, J.I. & Pleijel, F. (2018) Phylogeny of Hesionidae (Aciculata, Annelida), with four new species from deep-sea eastern Pacific methane seeps, and resolution of the affinity of Hesiolyra. Invertebrate Systematics, 32, 1050–1068. https://doi.org/10.1071/IS17092
    Rouse, G.W. & Kupriyanova, E.K. (2021) Laminatubus (Serpulidae, Annelida) from eastern Pacific hydrothermal vents and methane seeps, with description of two new species. Zootaxa, 4915 (1), 1–27. https://doi.org/10.11646/zootaxa.4915.1.1
    Salazar-Vallejo, S.I. (2020) Four new deep-water flabelligerid species from Pacific Costa Rica (Annelida, Sedentaria, Flabelligeridae). Zootaxa, 4885 (4), 560–578. https://doi.org/10.11646/zootaxa.4885.4.6
    Summers, M.M., Al-Hakim, I.I. & Rouse, G.W. (2014) Turbo-taxonomy: 21 new species of Myzostomida (Annelida). Zootaxa, 3873 (4), 301–344. https://doi.org/10.11646/zootaxa.3873.4.1
    Thiel, R., Knebelsberger, T., Kihara, T. & Gerde, K. (2021) Description of a new eelpout Pachycara angeloi sp. nov. (Perciformes: Zoarcidae) from deep-sea hydrothermal vent fields in the Indian Ocean. Zootaxa, 4980 (1), 99–112. https://doi.org/10.11646/zootaxa.4980.1.6
    Watson, C., Ignacio Carvajal, J., Sergeeva, N.G., Pleijel, F. & Rouse, G.W. (2016) Free-living calamyzin chrysopetalids (Annelida) from methane seeps, anoxic basins, and whale falls. Zoological Journal of the Linnean Society, 177, 700–719. https://doi.org/10.1111/zoj.12390
    Weitzman, S.H. & Vari, R.P. (1988) Miniaturization in South American freshwater fishes; an overview and discussion. Proceedings of the Biological Society of Washington, 101, 444–465.

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