The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY (한국해양학회지:바다)

The Korean Society of Oceanography (한국해양학회)
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The larval development of Paramphiascella vararensis(T. Scott) (Copepoda: Harpacticoida: Diosaccidae) reared in laboratory: II. Larvae development of copepodid stages

요각류 Paramphiascella vararensis(T, Scott) (Harpacticoida: Diosaccidae)의 유생 발생: II. copepodid 유생의 발생

  • Jung, Min-Min (Marine Research Institute of Cheju National University) ;
  • Lee, Hwa-Ja (Department of Biology, Cheju National University) ;
  • Kim, Hyeung-Sin (Research Institute for Basic Science, Cheju National University)
  • 정민민 (제주대학교 해양연구소) ;
  • 이화자 (제주대학교 자연과학대학 생물학과) ;
  • 김형신 (제주대학교 기초과학연구소)
  • Published : 2000.08.31
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Abstract

The complete postembryonic developments of copepodid stages of Paramphiascella vararensis T. Scott(Copepoda: Harpacticoida) are described and illustrated based on specimens cultured in laboratory. The copepodites of P. vararensis feed on powder of one of green macro-algae species Ulva pertusa. Developmental time from copepodid stage to adult (copepodid stage) is about 15 days with culture conditions of 33-34 ppt of salinity, 22-23$^{\circ}$C of temperature and feed on algae powder. Sexual characters of the species are distinct on the copepodid stage. Sexual characters appear in size, antennule, pereiopods of second and bases of the fifth and sixth legs. Males are considerably smaller than females in size. In the antennule, the fourth segment of the male extremely is modified and swollen for female. In the segment number of the endopod of second pereiopod, female has 3 segments while male bears 2 segments. The female has 3 setae while the male bears 2 setae on the inner lobe of basis of fifth leg. In the basis of sixth leg, the female has 2 setae while the male has 3 setae.

이 연구에서는 갑각강, 요각아강, Harpacticoida 목, Diosaccidae과, Paramphiascella 속의 Paramphiascella vararensis의 copepodid유생단계 및 성체의 발생과정에 대하여 보고한다. P. vararensis는 구멍 갈파래의 건조 분말을 먹이로 수온 22${\sim}$23$^{\circ}$C, 염분 33${\sim}$34 ppt의 배양 조건하에서 copepodid I 단계에서 copepodid VI 단계인 성체까지 발생하는데, 15일이 소요되었다. 성 분화는 제 IV copepodid기에서 이루어지며, 크기, 제 1 촉각, 제 2 흉지, 제 5 흉지 및 제 6 흉지 등에서 발생을 거듭하면서 형태적 차이를 보였다. 즉, 크기에서는 숫컷이 암컷보다 훨씬 작으며, 제 1 촉각은 암컷에 비하여 숫컷이 매우 변형되었고, 특히 제 1 촉각의 네 번째 마디가 암컷에 비해 매우 부풀어져있었다. 그리고 암컷의 제 2 흉지의 내지는 3마디이나, 숫컷은 2마디로 차이를 보였다. 한편, 제 5 흉지의 내엽의 강모수는 암컷이 3개, 숫컷이 2개였고, 제 6 흉지에서는 암컷은 2개, 숫컷은 3개의 강모를 갖는다.

Keywords

References

  1. Bull. Dep. Mar. Sci. Univ. Cochin v.7 Growth of anestuarine harpacticoid copepod Nitocra spinipes Boeck cultured in the laboratory Abraham, S.;U.K. Gopalan
  2. Crustaceana v.51 Contribution a L'etude de Cletocamptus retrogressus Schmankevitch, 1875(Copepoda, Harpacticoida). Development larvaire-stades copepodites Bourguet, J.-P.
  3. Crustaceana v.26 Scutellidium patellarum n. sp., a harpacticoid copepod associated with Patella spp. in south Africa and a description of its larval development Branch, G. M.
  4. Crustaceana v.52 First record of Paramphiascella fulvofasciata Rosenfield and Coull, 1974(Copepoda, harpacticoida) from the German bight Dahms, H.-U.
  5. Microfauna Marina v.5 Naupliar development of Harpacticoida(Crustacea, Copepoda)and its significance for phylogenetic systematics Dahms, H.-U.
  6. Crustaceana v.57 Post-embryonic development of Mesochra aestuarii Gurney. 1921(Copepoda: Harpacticoida) Dibbem, S.;G. Arlt
  7. Crustaceana v.42 A new species of Robertsonia(Copepoda, harpacticoida) from port curtis, Queensland Greenwood, J.G.lM.J. Tucker
  8. j. Fac.Sci. Hokkaido Univ. Ser. Zool v.22 Description and records of marine harpacticoid copepodas from Hokkaido Ito, T.
  9. J. Fac.Sci. Hokkaido Univ. Ser. Zool. v.22 The larval development of Canthocamptus mirabilis Sterba(Copepoda, harpacticoida)with reference to the bionomics Ito, T.;T. Takashio
  10. Tisbe furcata(Baird). Biol. Bull. v.95 The life history and biology of a marine harpacticoid copepod Johnson, M.W.;J.B. Olsen
  11. J. Oceanographical Soc. v.26 On the life history of Tigriopus japonicus Mori(Copepoda) Koga, F.
  12. Monographie der harpacticiden-Haken Ohlssons Lang, K.
  13. J. Crustacean Biology v.4 The development stages of Langipedia americana(Copepoda: Harpacticoida) reared in the laboratory Onbe, T.
  14. Publ. Inst. Mar. Sci. Nat. Fish. Univ. v.9 The larval development of Tisbe holothuriae Humes(Copepoda, Harpacticoida)under the laboratory conditions Park, C.W.
  15. Crustaceana v.47 New harpacticoida(Copepoda) from the north Atlantic ocean. four nw species of the families Diosaccidae, Ameiridae and Ancorabolidac Schriever, G.
  16. Issled Fauny Mjorei, SSSR v.8 New common forms of harpacticids(Copepoda, Harpacticoida)from possjet bay of the sea of Japan Tschislenko, L.L.
  17. J. Crustacean Biology v.1 Reproductive biology and development of a marine harpacticoid copepod reared in the larboratory Walker, L.M.