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1998 Fiscal Year Final Research Report Summary

Mechanism of nutrient supply in the metamorphosed stage of anomurans, particularly paralithods, and its application for the resource enhancement.

Research Project

Project/Area Number 09460091
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field General fisheries
Research InstitutionScience University of Tokyo

Principal Investigator

KITTAKA Jiro  Professor, Research Institutes for Science and Technology, Science University of Tokyo, 総合研究所, 教授 (20050346)

Co-Investigator(Kenkyū-buntansha) TESHIMA Shin-ichi  Professor, Faculty of Fisheries, University of Kagoshima, 水産学部, 教授 (70041704)
Project Period (FY) 1997 – 1998
KeywordsParalithodes camtschaticus / Lithodidae / glaucothoe / mouthparts / midgut gland / fatty acid / neutral lipid / non-feeding
Research Abstract

Paralithodes camtschaticus and P.brevipes (Decapoda : Anomura : Lithodidae : Paralithodes) are commecially important king crabs in the North Pacific Ocean and Okhotsuk Sea. The present study has elucidated, for the first time, that the glaucothoe, metamorphose stage, does not feed. (1) The mouthparts of zoea, glaucothoe and juveniles were compared. The mandibles of the glaucothe, especially the lateral lobes showed reduction in size. The gnathal processes are uncalcified, lacking denticles. The endites and endopods of the maxillae are rudimentally having minute setae. (2) The setae which presented in the foregut of zoea are reduced and the filter press is poorly developed in glaucothoe. The complex gastric mill is absent, which is well developed in the first juvenile. These facts suggest that feeding and food processing are not functional in the glaucothoe.
The newly hatched zoea has lipid reserve in the epithelial cells (resorptive cells) of the midgut gland. Accumulation of lipids is … More observed in the medial portion of the midgut gland with feeding cultured diatom Thalassiosira sp. and Artemia nauplii during all zoea stages. The large lipid droplets obseved in the early glaucothoe disappeared in the late glaucothoe. Small lipid droplets distribute abundantly in the outer margin of the epithelial cells of the midgut gland tables in the late glaucothoe. Fatty acids analysis showed an increase of neutral and polar lipids contents at 41 and 84 ug/dry weight mg for the newly hatched zoea of P.camtschaticus to about 100 and 110 ug/mg at the final zoea and the early glaucothoe. The lipids content decreased to 60 and 80 ug/mg at the mid-stage glaucothoe, 25, 50 ug/mg at the late-stage, and 15.30 ug/mg at the first juvenile Neutral lipids content increased/decreased remarkably compared to polar lipids content. These facts indicate that the lipids are used as energy source during the non-feeding glaucothoe stage. The fat body, which presents in the hemocoel of the puerulus, was not observed in the glaucothoe. This may imply relatively short distance migration in glaucothoe compared to long distance migration in puerulus during coastal recruitment. Less

  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] B.G.Stevens and J.Kittaka: "Postlarval settling behaviour, substrate preference and time to metamorphosis for red king crab Paralithodes camtschaticus." Marine Ecology Progress Series. 167. 197-206 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] F.A.Abrunhosa and J.Kittaka: "Functional morphology of mouthparts and foregut of the last zoea, glaucothoe and first juvenile of the king crabs Paralithodes camtschaticus, P.brevipes and P.platypus." Fiusheries Science. 63(5). 746-754 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] F.A.Abrunhosa and J.Kittaka: "Morphological changes in the midgut, digestive gland and hindgut during the larval and postlarval development of the red king crab Paralithodes camtschaticus." Fiusheries Science. 63(5). 746-754 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] J.Kittaka, K.Ono, and J.Booth: "Complete development of green rock lobster Jasus verreauxi from egg to juvenile stage." Bulletin of Marine Science. 61(1). 57-71 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Teshima: "Nutrition of Penaeus japonicus." Reviews in Fisheries Science. 6(1&2). 97-111 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] E.A.T Floreto and S.Teshima: "The fatty asid composition of seaweeds exposed to different levels of light intensity and salinity." Botanica Marina. 41. 467-481 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Teshima: "Phospholipids and sterols. in “Crustacean Nutrition" (ed.by D'Abramo.L.R.Conklin.D.E.And Akiyama.D.M.)" World Aquacultue Society, Baton Rouge, Louisiana, Advances in World Aquaculture, Vol.6.pp.85-105, (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] B.G.Stevens and J.Kittaka: "Postlarval settling behaviour, substrate preference and time to metamorphosis for red king carb Paralithodes camtschaticus." Marine Ecology Progress Series. 167. 197-206 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] F.A.Abrunhosa and J.Kittaka: "Functional morphology of mouthparts and foregut of the last zoea, glaucothoe and first juvenile of the king crabs Paralithodescamtschaticus, P.brevipes and P.platypus." Fisheries Science. 63(5). 746-754 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] F.A.Abrunhosa and J.Kittaka: "Morphological changes in the midgut, midgut gland and hindgut during the larval and postlarval develop-ment of the red king crab Paralithodes camtschaticus." Fisheries Science. 63(5). 746-754 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] J.Kittaka, K.Ono, and J.Booth: "Complete development of green rock lobster Jasus verreauxi from egg to juvenile stage." Bulletin of Marine Scienc. 61(1). 57-71 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Shioda, M.A.Igarashi and J.Kittaka: "Control of water quality in the culture of early-stage phyllosomas of Parinulus japonicus." Bulletin of Marine Scienc. 61(1). 177-189 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] J.Kittaka: "Application of ecosystem culture method for complete development of phyllosomas of spiny lobster." Aquaculture. 155. 319-331 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] J.Kittaka and F.A.Abrunhosa: "Characteristics of palinurids (decapoda : crustacea) in larval culture." Hydrobiologia. 358. 305-311 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] J.Kittaka: "Culture of larval spiny lobsters : a review of work done in northern Japan." Mar.Freshwater Res.48. 923-930 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Teshima: "Nutrition of Penaeus japonicus." Reviews in Fisheries Science. 6(1&2). 97-111 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Teshima, M.Ishikawa, S.Koshio and A.Kanazawa: "Assessment of cholesterol requirements in the prawn, Penaeus japonicus." Aquaculture Nutrition. 3. 247-253 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] E.A.T Floreto and S.Teshima: "The fatty acid composition of seaweeds exposed to different levels of light intensity and salinity" Botanica Marina. 41. 467-481 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Ishikawa, S-i.Teshima, A.Kanazawa and S.Koshio: "Measurements of digestibilities of cholesterol and fatty acids using 5a-cholestane as an inert marker in the tilapia, Oreochromis niloticus, and the freshwater prawn, Macrobrachium rosenbergii." J.Appl.Ichthyol.13. 31-35 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Teshima, M.Ishikawa, S.Koshio and A.Kanazawa: "Necessity of Cholesterol for the freshwater prawn." Fisheries Science. 63(4). 596-599 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Teshima: "Phospholipids ans sterols. in "Crustacean Nutrition"(ed.by D'Abramo, L.R., Conklin, D.E.and Akiyama, D.M.)" World Aquaculture Society, Baton Rouge, Louisiana, Advances in World Aquaculture. Vol.6. 85-105 (1998)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-12-08  

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