Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Two new species belonging to the dentipes- and conifera-subgroups of Triconia (Copepoda: Cyclopoida: Oncaeidae) from the East China Sea

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

This Article is currently unavailable for purchase.
Add to Favorites
You must be logged in to use this functionality

Cover image Placeholder

Two new species of Triconia in Oncaeidae, including both sexes of Triconia constricta n. sp. and females of Triconia pararedacta n. sp., are described from south of Jeju Island in the East China Sea. Triconia constricta belongs to the dentipes-subgroup of Triconia characterized by the absence of integumental pockets on the anterior surface of the labrum. It is distinguished from the closely related species of this subgroup, T. dentipes (Giesbrecht, 1891), T. elongata Böttger-Schnack, 1999, and T. giesbrechti Böttger-Schnack, 1999, by the following combination of morphological features in females: 1) lateral margins of genital double-somite in dorsal view slightly constricted at midlength; 2) P5 with very long outer basal seta, reaching beyond paired secretory pores on posterior part of genital double-somite, as well as distinctive length ratios of exopodal setae; in both sexes; 3) length ratios of caudal setae, and 4) relative spine lengths on distal endopodal segments of swimming legs 2 to 4. Triconia pararedacta is a member of the conifera-subgroup characterized by a dorsal projection on the second pedigerous somite in the female. It differs from females of other species of this subgroup in the following: 1) very small-sized dorsal projection on second pedigerous somite, 2) different length to width ratio of P5 exopod, 3) relative lengths of outer basal seta and exopodal setae of P5, and 4) different length ratio of outer distal spine to distal spine on endopods of P2-P4. Additional character states are proposed for defining the dentipes-subgroup within Triconia and for recognizing three sets of species within the conifera-subgroup.

Affiliations: 1: 1Division of Marine Technology, Chonnam National University, South Korea; 2: 2Helmholtz Centre for Ocean Research Kiel (GEOMAR), Biological Oceanography (FB2), Düsternbrooker Weg 20, D-24105 Kiel, Germany


Full text loading...


Data & Media loading...

1. Böttger R. 1987. "The vertical distribution of micro- and small mesozooplankton in the central Red Sea". Biological Oceanography Vol 4: 383- 402.
2. Böttger-Schnack R. 1994. "The microcopepod fauna in the Eastern Mediterranean and Arabian Seas: a comparison with the Red Sea fauna". Hydrobiologia Vol 292/293: 271- 282. [Crossref]
3. Böttger-Schnack R. . 1996. "Vertical structure of small metazoan plankton, especially non-calanoid copepods. Deep Arabian Sea". Journal of Plankton Research Vol 18( 7): 1073- 1101. [Crossref]
4. Böttger-Schnack R. . 1999. "Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. I. 11 species of Triconiagen. nov. and a redescription of T. similis(Sars) from Norwegian waters". Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut Vol 96: 37- 128.
5. Böttger-Schnack R. . 2011. "Taxonomic re-examination and distribution of copepods reported as Oncaea notopusGiesbrecht, 1891 (Copepoda, Oncaeidae) in the Mediterranean Sea". Marine Biodiversity Vol 4( 2): 325- 341. [Crossref]
6. Böttger-Schnack R. , Machida R. J. . 2011. "Comparison of morphological and molecular traits for species identification and taxonomic grouping of oncaeid copepods". Hydrobiologia Vol 666: 111- 125. [Crossref]
7. Böttger-Schnack R. , Schnack D. . 2009. "Taxonomic diversity and identification problems of oncaeid microcopepods in the Mediterranean Sea". Marine Biodiversity Vol 39: 131- 145. [Crossref]
8. Böttger-Schnack R. , Walter T. C. , Boxshall G. . 2012. TriconiaBöttger-Schnack, 1999. In, T. C. Walter and G. Boxshall (eds.), World Copepoda Database. Accessed through: World Register of Marine Species at 2012-04-02.
9. Boxshall G. A. , Böttger R. . 1987. "Two new species of Oncaea(Copepoda: Poecilostomatoida) from the Red Sea and a redescription of O. atlanticaShmeleva". Journal of Plankton Research Vol 9: 553- 564. [Crossref]
10. Burmeister H. 1835. "Beschreibung einiger neuen oder weniger bekannten Schmarotzerkrebse, nebst allgemeinen Betrachtungen über die Gruppe, welcher sie angehören. Nova Acta Physico-Medica Academiae Caesareae Leopoldino-Carolinae Naturae Curiosorum (Acta der Kaiserlichen Leopoldinisch-Carolinischen Deutschen Akademie der Naturforscher)". Halle Vol 17( 1): 269- 336, pls. 23, 24, 24a, 25. (1833).
11. Chen Q. C. , Zhang S. Z. , Zhu C. S. . 1974. "On planktonic copepods of the Yellow Sea and the East China Sea. 2. Cyclopoida and Harpacticoida". Studia Marina Sinica Vol 9: 27- 100.
12. Elvers D. , Böttger-Schnack R. , Blohm D. , Hagen W. . 2006. "Sympatric size variants of the microcopepod Oncaea venustaexhibit distinct lineages in DNA sequences". Marine Biology Vol 149: 503- 513. [Crossref]
13. Farran G. P. 1929. "Crustacea. Part X. – Copepoda. Natural History Reports. British Antarctic (‘Terra Nova’) Expedition, 1910". Zoology Vol 8: 203- 306.
14. Farran G. P. . 1936. "Copepoda. Great Barrier Reef Expedition, 1928-1929". Scientific Reports. British Museum (Natural History) Vol 5( 3): 73- 142, 30 textfigs.
15. Giesbrecht W. 1891. "Elenco dei Copepodi pelagic raccolti dal tenente di vascello Gaetano Chierchia durante il viaggio della R. Corvetta, Vettor Pisani negli anni 1882-1885, e dal tenente di vascello Francesco Orsini nel Mar Rosso, nel 1884". Atti della Reale Accademia del Lincei, Rendiconti Vol 4( 7): 474- 481.
16. Giesbrecht W. . 1893 (dated ‘1892’). "Systematik und Faunistik der pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-abschnitte". Fauna und Flora des Golfes von Neapel Vol 19: 1- 831, plates 1-54.
17. Heron G. A. 1977. "Twenty-six species of Oncaeidae (Copepoda: Cyclopoida) from the southwest Pacific-Antarctic area". Biology of the Antarctic Seas, VI. – Antarctic Research Series Vol 26: 37- 96.
18. Heron G. A. , Bradford-Grieve J. M. . 1995. "The marine fauna of New Zealand: Pelagic Copepoda: Poecilostomatoida: Oncaeidae". New Zealand Oceanographic Institute Memoir Vol 104: 1- 57.
19. Heron G. A. , Frost B. W. . 2000. "Copepods of the family Oncaeidae (Crustacea: Poecilostomatoida) in the northeast Pacific Ocean and inland coastal waters of Washington State". Proceedings of the Biological Society of Washington Vol 113: 1015- 1063.
20. Holthuis L. B. , Vervoort W. . 2006. "The date of publication of Wilhelm Giesbrecht’s “Pelagische Copepoden,” in Fauna und Flora des Golfes von Neapel, Volume 19". Crustaceana Vol 79: 371- 374. [Crossref]
21. Hopcroft R. R. , Roff J. C. , Chavez F. P. . 2001. "Size paradigms in copepod communities: a re-examination". Hydrobiologia Vol 453/454: 133- 141. [Crossref]
22. Hopkins T. L. 1985. "The zooplankton community of Croker passage, Antarctic Peninsula". Polar Biology Vol 4: 161- 170. [Crossref]
23. Huys R. , Boxshall G. A. . 1991. Copepod Evolution. The Ray Society, London, 468 pp.
24. Itoh H. 1997. "Family Oncaeidae", pp.  978- 988. In, Chihara M. , Murano M. (eds.), An Illustrated Guide to Marine Plankton in Japan. Tokai University Press, Tokyo (in Japanese).
25. Krŝinić F. 1998. "Vertical distribution of protozoan and microcopepod communities in the South Adriatic Pit". Journal of Plankton Research Vol 20: 1033- 1060. [Crossref]
26. Nishibe Y. , Ikeda T. . 2004. "Vertical distribution, abundance and community structure of oncaeid copepods in the Oyashio region, western subarctic Pacific". Marine Biology Vol 145: 931- 941. [Crossref]
27. Nishibe Y. , Hirota Y. , Ikeda T. . 2009. "Community structure and vertical distribution of oncaeid copepods in Tosa Bay, southern Japan". Journal of the Marine Biological Association of the United Kingdom Vol 89: 491- 498. [Crossref]
28. Paffenhöfer G. A. 1993. "On the ecology of marine cyclopoid copepods (Crustacea, Copepoda, Cyclopoida)". Journal of Plankton Research Vol 15: 37- 55. [Crossref]
29. Sars G. O. 1918. "Copepoda Cyclopoida: Lichomolgidae (concluded), Oncaeidae, Corycaeidae, Ergasilidae, Clausiidae, Eunicicolidae, Supplement". An Account of the Crustacea of Norway Vol 6: 173- 225.
30. Sewell R. B. S. 1947. "The free-swimming planktonic Copepoda. Systematic account". Scientific Reports. John Murray Expedition Vol 8( 1): 1- 303.
31. Wi J. H. , Böttger-Schnack R. , Soh H. Y. . 2010. "Species of Triconiaof the conifera-subgroup (Copepoda, Cyclopoida, Oncaeidae) from Korean waters, including a new species". Journal of Crustacean Biology Vol 30( 4): 673- 691. [Crossref]

Article metrics loading...



Can't access your account?
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation