Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
권호 표지
DOI QR코드

DOI QR Code

The First Record of Monothula subtilis (Giesbrecht, 1893 ["1892"]) (Cyclopoida, Oncaeidae) in the Equatorial Pacific Ocean

  • Received : 2017.09.26
  • Accepted : 2018.01.09
  • Published : 2018.03.30
Download PDF
⟨ Previous Next ⟩

Abstract

A small cyclopoid copepod M. subtilis (Giesbrecht, 1893 ["1892"]) belonging to the genus Monothula $B{\ddot{o}}ttger-Schnack$ and Huys, 2001 was collected by using $60{\mu}m$ mesh net and firstly recorded in the epipelagic layer of the equatorial Pacific Ocean. We redescribed its morphological characteristics for both female and male, comparing with those of previous studies. Specimens of M. subtilis from the equatorial Pacific Ocean differ from those previously reported by others in terms of the length of the seta G on antenna, being much shorter than setae E and F; in the distal spine on the swimming leg 4, being longer than the length of the third segment on P4. The outer spine of the P3 enp-3 in male is slightly over the tip of conical process. The spine lengths of the distal endopods of P2-P4 for both sexes showed variations among individuals, and the proportions of spine lengths in female are higher than those in male.

Keywords

References

  1. Bottger-Schnack R (1994) The microcopepod fauna in the Eastern Mediterranean and Arabian Seas: a comparison with the Red Sea fauna. Hydrobiologia 292/293:271-282 https://doi.org/10.1007/BF00229951
  2. Bottger-Schnack R (1995) Summer distribution of microand small meso-zooplankton in the Red Sea and Gulf of Aden, with special reference to non-calanoid copepods. Mar Eco-Prog Ser 118:81-102 https://doi.org/10.3354/meps118081
  3. Bottger-Schnack R (1996) Vertical structure of small metazoan plankton, especially non-calanoid copepods. I. Deep Arabian Sea. J Plankton Res 18:1073-1101 https://doi.org/10.1093/plankt/18.7.1073
  4. Bottger-Schnack R (1999) Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. - I. 11 species of Triconia gen. nov. and a redescription of T. similis (Sars) from Norwegian waters. Mitt hamb zool Mus Inst 96:37-128
  5. Bottger-Schnack R (2002) Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. VI. Morphology and zoogeography of Oncaea bispinosa sp. nov., a sister taxon of O. zernovi Shmeleva. J Plankton Res 24:1107-1129 https://doi.org/10.1093/plankt/24.11.1107
  6. Bottger-Schnack R (2003) Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi-group), with notes on zoogeographical distribution. Zoological J Linnean Society 137:187-226 https://doi.org/10.1046/j.1096-3642.2003.00056.x
  7. Bottger-Schnack R (2004) Triconia parasimilis Bottger-Schnack,1999 (Copepoda, Oncaeidae), first record from the NW Pacific (Oyashio), with the description of the male. Mitt Hamb zool mus Inst 101:213-223
  8. Bottger-Schnack R (2005) Taxonomy of Oncaeidae (Copepoda: Cyclopoida) from the Red Sea. VII. Oncaea cristata, a new species related to the ovalis-complex, and a revision of O. ovalis Shmeleva and O. bathyalis Shmeleva from the Mediterranean. Cah Biol Mar 46:161-209
  9. Bottger-Schnack R (2009) Taxonomy of Oncaeidae (Copepoda, Cyclopoida s.l.) from the Red Sea. IX. Epicalymma bulbosa sp. nov., first record of the genus in the Red Sea. J Plankton Res 31:1027-1043 https://doi.org/10.1093/plankt/fbp051
  10. Bottger-Schnack R, Huys R (2001) Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. III. Morphological and phylogenetic position of Oncaea subtilis Gesbrecht, 1892. Hydrobiologia 453/454:467-481 https://doi.org/10.1023/A:1013114706718
  11. Chen QC, Zhang SZ, Zhu CS (1974) On planktonic copepods of the Yellow Sea and the East China Sea. 2. Cyclopoida and Harpacticoida. Stud Mar Sinica 9:27-100 (in Chinese)
  12. Cho K (2011) Study on the taxonomy of family Oncaeidae (Copepoda, Cyclopoida) from the CCFZ (Clarion-Clipperton Fracture Zone; C-C zone) in the Northeast Equatorial Pacific. Ph.D. Thesis, Hanyang University, Seoul, 274 p
  13. Cho KH, Bottger-Schnack R, Kim WS, Lee WC (2017b) Two species of the conifera-subgroup of Triconia (Copepoda, Oncaeidae) from the northeastern equatorial Pacific, with a description of the unknown male of T. hirsuta. Zootaxa 4286:347-369 https://doi.org/10.11646/zootaxa.4286.3.3
  14. Cho KH, Kim WS, Bottger-Schnack R, Lee WC (2013) A new species of the dentipes-subgroup of Triconia and a redescription of T. giesbrechti and T. elongata (Copepoda: Cyclopoida: Oncaeidae) from the tropical Pacific and the Korea Strait. J Nat Hist 47:1707-1743 https://doi.org/10.1080/00222933.2013.771757
  15. Cho KH, Kim WS, Lee WC (2017a) Redescription of two species of Triconia (Copepoda, Cyclopoida, Oncaeidae) based on their first records in the tropical Pacific. Korean J Environ Biol 35:64-82 https://doi.org/10.11626/KJEB.2017.35.1.064
  16. Giesbrecht W (1893) Systematik und Faunistik der pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. Fauna Flora Golf. Neapel, 19:1-831
  17. Gubanova A, Altukhov D, Stefanova F, Arashkevich E, Kamburska L, Prusova I, Svetlichny L, Timofte F, Uysal Z (2014) Species composition of Black Sea marine planktonic copepods. J Mar Sys 135:44-52 https://doi.org/10.1016/j.jmarsys.2013.12.004
  18. Heron GA (1977) Twenty-six species of Oncaeidae (Copepoda: Cyclopoida) from the southwest Pacific-Antarctic area (Biology of the Antarctic Seas VI). Antarct Res Ser 26:37-96
  19. Heron GA, English TS, Damkaer DM (1984) Arctic Ocean Copepoda of the genera Lubbockia, Oncaea, and Epicalymma (Poecilostomatoida: Oncaeidae), with remarks on distributions. J Crust Biol 4:448-490 https://doi.org/10.2307/1548043
  20. Heron GA, Frost BW (2000) Copepods of the family Oncaeidae (Crustacea: Poecilostomatoida) in the northeast Pacific Ocean and inland coastal waters of Washington State. Proc Biol Soc Wash 113:1015-1063
  21. Hopcroft RR, Roff JC, Chavez FP (2001) Size paradigms in copepod communities: a re-examination. Hydrobiologia 453/454:133-141 https://doi.org/10.1023/A:1013167917679
  22. Huys R, Gee JM, Moore CG, Hamond R (1996) Marine and brackish water harpacticoid copepods, Part 1. Field Studies Council, Shropshire, 352 p
  23. Hwang JS, Kumar R, Dahms HU, Tseng LC, Chen QC (2007) Mesh size affects abundance estimates of Oithona spp. (Copepoda, Cyclopoida). Crustaceana 80:827-837 https://doi.org/10.1163/156854007781363169
  24. Itoh H (1997) Family Oncaeidae. In M Chihara, M Murano, editors. An illustrated guide to marine plankton in Japan. Tokai University Press, Tokyo, pp 978-988 (in Japanese)
  25. Kang JH, Cho KH, Son JW, Kim WS (2007) Longitudinal distribution of zooplankton at $10.5^{\circ}N $ in the Northeastern Pacific. Ocean Polar Res 29:283-295 https://doi.org/10.4217/OPR.2007.29.4.283
  26. Kang JH, Kim WS, Chang KI (2008) Latitudinal distribution of mesozooplankton in the off-equatorial northeastern Pacific before and after the 1998/99 La Nina event. Mar Environ Res 65:218-234 https://doi.org/10.1016/j.marenvres.2007.10.003
  27. Kang JH, Kim WS, Son SK (2004) Latitudinal differences in the distribution of mesozooplankton in the Northeastern Equatorial Pacific. Ocean Polar Res 26:351-360 https://doi.org/10.4217/OPR.2004.26.2.351
  28. Krsinic F, Bojanic D, Precali R, Kraus R (2007) Quantitative variability of the copepod assemblages in the northern Adriatic Sea from 1993 to 1997. Estuar Coast Shelf S 74:528-538 https://doi.org/10.1016/j.ecss.2007.05.036
  29. Krsinic F, Grbec B (2002) Some distributional characteristics of small zooplankton at two stations in the Otranto Strait (Eastern Mediterranean). Hydrobiologia 482:119-136 https://doi.org/10.1023/A:1021212431253
  30. Krsinic F, Malt SJ (1985) Little known species of small Oncaeidae (Cyclopoida) from the South Adriatic. J Plankton Res 7:189-199 https://doi.org/10.1093/plankt/7.2.189
  31. Makabe R, Tanimura A, Fukuchi M (2012) Comparison of mesh size effects on mesozooplankton collection efficiency in the Southern Ocean. J Plankton Res 34:432-436 https://doi.org/10.1093/plankt/fbs014
  32. Malt SJ (1982) New and little known species of Oncaeidae (Cyclopoida) from the Northeastern Atlantic. Bull Br Mus Nat Hist (Zool) 42:185-205
  33. Malt SJ (1983) Copepoda, Oncaea. Fich Ident Zooplnakton 169/170/171:1-11
  34. Malt SJ, Lakkis S, Ziedane R (1989) The copepod genus Oncaea (Poecilostomatoidea) from the Labanon: taxonomic and ecological observations. J Plankton Res 11:949-969 https://doi.org/10.1093/plankt/11.5.949
  35. McKinnon AD, Duggan S, Bottger-Schnack R, Gusmao LFM, O'Leary RA (2013) Depth structuring of pelagic copepod biodiversity in waters adjacent to an Eastern Indian Ocean coral reef. J Nat Hist 47:639-665 https://doi.org/10.1080/00222933.2012.673645
  36. Miyashita LA, Melo Junior M, Lopes RM (2009) Estuarine and oceanic influences on copepod abundance and production of a subtropical coastal area. J Plankton Res 31:815-826 https://doi.org/10.1093/plankt/fbp039
  37. MOMAF (2008) A report on 2007 Deep sea bed mineral resources exploration. CRPM 44000-1936-5. Ministry of Maritime Affairs and Fisheres, Seoul, 755 p
  38. MOMAF (2009) A report on 2008 Deep sea bed mineral resources exploration. CRPM 51101-2042-5. Ministry of Maritime Affairs and Fisheres, Seoul, 596 p
  39. Rawlinsona KA, Davenporta J, Barnes DKA (2005) Tidal exchange of zooplankton between Lough Hyne and the adjacent coast. Estuar Coast Shelf S 62:205-215 https://doi.org/10.1016/j.ecss.2004.08.018
  40. Razouls C, de Bovee F, Kouwenberg J, Desreumaux N (2005-2017) Diversity and geographic distribution of marine planktonic copepods. Monothula subtilis (Giesbrecht, (1893 ["1892"]). http://copepodes.obs-banyuls.fr/en/fichesp.php?sp=2108 Accessed 18 Aus 2017
  41. Roman MR, Dam HG, Gauzens AL, Urban-Rich J, Foley DG, Dickey TD (1995) Zooplankton variability on the equator at $140^{\circ}W$ during the JGOFS EqPac study. Deep-Sea Res II 42:673-693 https://doi.org/10.1016/0967-0645(95)00025-L
  42. Wi JH, Bottger-Schnack R, Soh HY (2012) Two new species belong to the dentipes- and conifera-subgroups of Triconia (Copepoda: Cyclopoida: Oncaeidae) from the East China Sea. J. Crust Biol 32:843-859 https://doi.org/10.1163/193724012X650659
  43. Wi JH, Shin KS, Soh HY (2011) The similis-subgroup within Triconia (Copepoda: Cyclopoida: Oncaeidae) from Korean waters. Zool Stud 50:588-604
  44. Wi JH, Yoon YH, Soh HY (2009) Five Oncaea species (Copepoda, Poecilostomatoida, Oncaeidae) from the Korean waters, with notes on the spation-temporal distribution of Korean oncaeid species. Ocean Sci J 44:95-115 https://doi.org/10.1007/s12601-009-0010-7
  45. Wu CJ, Shin CM, Chiang KP (2011) Does the mesh size of the plankton net affect the result of statistical analyses of the relationship between the copepod community and water masses? Crustaceana 84:1069-1083 https://doi.org/10.1163/001121611X586701