Abstract
Oncaea venusta Philippi, 1843 has been known as having some different size groups, but recent genetic study for cyt b and ITS 1 (Elverset al. 2006) suggests that these size groups can be considered as different species. Of these size groups, the largestO. venusta Philippi and the smallestO. venella Farran, 1929 were first described in Korean waters. The latter is easily distinguishable from the former in the following characteristics in addition to its small size: (1) length to width ratio of genital double somite of two genders smaller, and (2) female second pediger bearing inconspicuous dorso-posterior swelling.Oncaea venusta andO. venella co-occur in Korean waters during spring to fall, but their occurrence patterns seasonally differ: the former shows higher density in fall while the latter does in summer.
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Böttger-Schnack, R. 2001. Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. II. Seven species ofOncaea s. str.Bull. Brit. Mus. nat. His. (Zool.),67(1), 25–84.
Böttger-Schnack, R., J. Lenz, and J. Weikert. 2004. Are taxonomic details of relevance to ecologists? An example from oncaeid microcopepod of the Red Sea.Mar. Biol.,144, 1127–1140.
Böttger-Schnack, R., D. Schnack, and H. Welkert. 1989. Biolgical observations on small cyclopoid copepods in the Red Sea.J. Plankton Res.,11, 1089–1101.
Boxshall, G.A. 1977. The planktonic copepods of the northeastern Atlantic Ocean: Some taxonomic observations on the Oncaeidae (Cyclopoida).Bull. Brit. Mus. Nat. Hist ( Zoology).,31, 103- 155.
Elvers, D., R. Bttger-Schnack, D. Blohm, and W. Hagen. 2006. Sympatric size variants of the microcopepodOncaea venusta exhibit distinct lineages in DNA sequences.Mar. Biol.,149, 503–513.
Farran, G.P. 1929. Crustacea. Part X. -Copepoda. Natural History Reports.Brit. Antarc (“Terra Nova”). Expeid., 1910, Zool.,8, 203–306.
Farran, G.P. 1936. Copepoda.Scient. Rep. Gt Barrier Reef Exped.,5(3), 73–142, 30 textfigs.
Ferrari, F.D. 1975. Taxonomic notes of the genusOncaea (Copepoda: Cyclopoida) from the Gulf of Mexico and Northern Caribbean Sea.Proc. Biol. Soc. Wash.,88, 217–232.
Giesbrecht, W. 1893. Systematik und Faunistik der pelagischen Copepoden des Golfes ven Neapel und der angrenzenden Meeres-Abschnitte.Fauna und Flora des Golfes von Neapel,XIX, 1–831.
Heron, G.A. 1977. Twenty-six species of Oncaeidae (Copepoda: Cyclopoida) from the southwest Pacific-Antarctic area. p. 37–96. In:Biology of the Antarctic Seas, VI. — Antarc. Research Ser., 26, ed. by Pawson, D.L. American Geophysical Union, Washington.
Heron, G.A. 2002.Oncaea frosti, a new species (Copepoda: Poecilostomatoida) from the Liberian coast and the Gulf of Mexico.Hydrobiologia,480, 145–154.
Heron, G.A. and J.M. Bradford-Grieve. 1995. The marine fauna of New Zealand: Pelagic Copepoda: Poecilostomatoida: Oncaeidae.N. Z. Oceanogr. I. Mem.,104, 1–57.
Humes, A.G. 1988.Oncaea praeclara n. sp. (Copepoda: Poecilostomatoida) from deep-sea hydrothermal vents in the eastern Pacific.J. Plankton Res.,10, 475–485.
Huys, R. and G.A. Boxshall. 1991. Copepod Evolution. London. The Ray Society. 468 p.
Malt, S.J. 1982. New and little known species of Oncaeidae (Cyclopoida) from the northeastern Atlantic.Bull. Brit. Mus. nat. His. (Zool.),42, 185–205.
Malt, S.J. 1983. Studies on the taxonomy and ecology of the marine copepod genus Oncaea Philippi. Ph.D. Thesis, Univ. London. 500 p.
Paffenhöfer, G.A. 1993. Vertical zooplankton distribution on the northeastern Florida shelf and its relation to temperature and food abundance.J. Plankton Res.,5, 15–33.
Sewell, R.B.S. 1947. The free-swimming planktonic copepod.Syst. Account. Sci. Rep. John Murray Exped.,8(1), 1–303, 1933–1934, figs. 1-71.
Tanaka, O. 1960. Pelagic Copepoda. Biological results of the Japanese Antarctic Research Expedition, 10. Spec. Publs. Seto. Mar. Biol. Lab. 177 p., 40 pls.
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Wi, J.H., Suh, H.L., Yang, H.S. et al. Two species of the genusoncaea (copepoda, poecilostomatoida, oncaeidae) from the east sea, Korea. Ocean Sci. J. 43, 183–193 (2008). https://doi.org/10.1007/BF03029923
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DOI: https://doi.org/10.1007/BF03029923