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Studies on the diversity and creative mechanism of the reproductive mode in copulating teleost fishes

Research Project

Project/Area Number 13660173
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field General fisheries
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

MUNEHARA Hiroyuki  Hokkaido University, Field Science for Northern Biosphere, 北方生物圏フィールド科学センター, 助教授 (80212249)

Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2002: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2001: ¥2,300,000 (Direct Cost: ¥2,300,000)
Keywordsmulti-spawner / single spawner / copulating / maternal care / cottoid / Radulinopsis taranetzi / sperm polymorphism / Hemilepidotus / 繁殖様式
Research Abstract

The present studies carried out a ecological and physiological examination on Scorpaeniformes cottoid species, with the focus of the spawning mode and functional morphology of testes as out-adaptive traits for evolution of copulating behavior.
1. Histological observation for investigation of on ovarian annual cycle showed that Radulinopsis taranetzi and R. darjevini, maternal care and copulating fishes, are potential multi-spawners. Experimentally, females of these species spawn two times in a breeding season only when the egg masses was taken out of aquarium tank before hatching, but both spawned only one time when the females succeefully protected the first egg mass until hatching. These results suggested that the second clutch of these cottids is for compensatory eggs when the first clutch was eaten during developing.
2. Histological observation on testes showed that copulating period and sperm strage system in testicular organ differed between R. taranetzi and R. darjevini. R. tarane … More tzi copulates for six months from January to July, while R. darjevini for ten months from September to July. In the latter fish, testis weight is relatively heavier and sperm is stored more compactly as sperm bunch than those of the former. In addition small chamber, which is enclosed with connective tissues, is provided near the opening of the tip of penis. It is plausible that these morphological differences function to emit much sperm into female genital tract for intensive sperm competion (long copulaing period).
3. A non-copulating sculpin, Hemilepidotus gilberti, produce much apyrene spermatozoa with plural nuclei during spermatogenesis. The function of apyrene sperm were investigated with fluorescent dye and microsatellite DNA polymorphism. It was showed that the sperm played as a broker toward sneaker's eusperm for sperm-competition. In addition it is experimentally showed that apyrene spermatozoa have antidispersive function.
4. The past studies indicated that copulating cottoids are multispawers while non-copulating cottoids are single spawner. Multi-spawning brought much benefit for copulating individuals but not benefitial for non-copulating fishes. The present study investigated for Radulinopsis species, showed that the above concept may not adaptive for at least maternal care and copulating fishes. Less

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (37 results)

All Other

All Publications (37 results)

  • [Publications] Hayakawa, Y., H.Munehara: "Obstructive role of the dimorphic sperm in a non-copulatory marine sculpin, Hemilepidotus gilberti, to prevent other eusperm"Env. Biol. Fish. 64. 419-427 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hayakawa, Y., H.Munehara: "Initiation of sperm motility depending on a change in external osmotic pressure in the non-copulatory marine cottid fish ---"Ichthyol. Res.. 49. 291-293 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Munehara, H., VG Sideleva, A.Goto: "Mixed-species brooding between two Baikal sculpins : field evidence for intra-and interspecific competition for reproductive resources"j. Fish Biol.. 60. 981-988 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Koya, Y., H.Munehara, K.Takano: "Sperm storage and motility in the ovary of the marine sculpin Alcichthys alcicornis (Teleostei : Scorpaeniformes), with internal fametic association"J. Exp. Zool.. 292. 145-155 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Munehara, H., Nagai, N., Norimatsu, Y.: "Isolation and characterization of microsatellite markers from the Hypoptychus dybowskii (Pisces, Gasterosteiformes)"Molecular Ecol. Note. 2. 70-71 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hayakawa, Y., H.Munehara: "Ultrastructural observations of eu-and paraspermiogenesis in the cottid fish Hemilepidotus gilberti (teleostei : Scorpaeniformes)"Journal of Morphology. 253. 243-254 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 宗原弘幸: "血縁と配偶システム"水産生物の性と行動生態(厚生閣恒星社). 33-47 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Sunobe, T., H.Munehara: "Mating system and kin relationship between adults and young in the shell-brooding cichlid fish Neolamprologus meeli in Lake Tanganyika"Journal of Ethology. 22/2. 87-92 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Nozaki, K., H.Morino, H.Munehara, VG Sideleva----: "Composition, biomass, and photosynthetic activity of the benthic algal communities in a littoral zone of Lake Baikal in summer"Limnology. 3. 175-180 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Nagao, J., H.Munehara: "Reproductive cycle of the helmet crab (Telmessus cheiragonus)"Proceedings of the symposium crab 2001. 323-337 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hayakawa, Y., R.Akiyama, H.Munehara, A.Komaru: "Dimorphic sperm influence semen distribution in a non-copulatory sculpin Hemilepidotus gilberti"Environmental Biology of Fishes. 65/3. 311-317 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 宗原弘幸: "魚類における子の保護行動の進化 -保護者の性と非血縁個体による保護"『遺伝』 特集 動物の社会行動. 別冊16号. 100-109 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 宗原弘幸: "血縁と配偶システム"水産生物の性と行動生態(厚生閣恒星社). 33-47 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hayakawa, Y., H. Munehara: "Obstructive role of the dimorphic sperm in a non-copulatory marine sculpin, Hemilepidotus gilberti, to prevent other eusperm"Environmental Biology of Fishies. 64. 419-427 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hayakawa, Y., H. Munehara: "Initiation of sperm motility depending on a change in external osmotic pressure in the non-copulatory marine cottid fish Gymnocanthus herzensteini"Ichthyological Research. 49. 291-293 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Munehara, H., VG Sideleva, A. Goto: "Mixed-species brooding between two Baikal sculpins : field evidence for intra- and interspecific competition for reproductive resources"Journal of Fish Biology. 60. 981-988 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Koya, Y., H. Munehara, K. Takano: "Sperm storage and motility in the ovary of the marine sculpin Alcichthys alcicornis (Teleostei : Scorpaeniformes), with internal fametic association"Journal of Experimental Zoology. 292. 145-155 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Munehara, H., N. Nagai, Y. Narimatsu: "Isolation and characterization of microsatellite markers from the Hypoptychus dybowskii (Pisces, Gasterosteiformes)"Molecular Ecology Note. 2. 70-71 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hayakawa, Y., H. Munehara: "Ultrastructural observations of eu- and paraspermiogenesis in the cottid fish Hemilepidotus gilberti (teleostei : Scorpaeniformes)"Journal of Morphology. 253. 243-254 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Nozaki, K., H. Morino, H. Munehara, VG Sideleva K. Nakai, M. Yamauchi, OM Kozhova, M. Nakanishi: "Composition, biomass, and photosynthetic activity of the benthic algal communities in a littoral zone of Lake Baikal in summer"Limnology. 3. 175-180 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Nagao, J., H. Munehara: "Reproductive cycle of the helmet crab (Teimessus cheiragonus)"Proceedings of the symposium crab 2001. 2002. 323-337

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hayakawa, Y., R. Akiyama, H. Munehara, A. Komaru: "Dimorphic sperm influence semen distribution in a non-copulatory sculpin Hemilepidotus gilberti"Environmental Biology of Fishes. 65. 311-317 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Sunobe, T., H. Munehara: "Mating system and kin relationship between adults and young in the shell-brooding cichlid fish Neolamprologus meeli in Lake Tanganyika"Journal of Ethology. 22. 87-92 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Munehara, H.: "Evolution of parental care in teleost fishes. ---sex of care takers and alloparental care---"Iden. special volume no. 16. 100-106 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Munehara, H.: "Relatedness and mating system"Sex and Behavioral Ecology of Aquatic Bioresources. 33-47 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hayakawa, Y., H.Munehara: "Obstructive role of the dimorphic sperm in a non-copulatory marine sculpin, Hemi lepidotus gilberti, to prevent other eusperm"Env. Biol. Fish. 64. 419-427 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hayakawa, Y., H.Munehara: "Initiation of sperm motility depending on a change in external osmotic pressure in the non-copulatory marine cottid fish -"Ichthyol. Res.. 49. 291-293 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Munehara, H., VG Sideleva, A.Goto: "Mixed-species brooding between two Baikal sculpins : field evidence for intra-and interspecific competition for reproductive resources"J. Fish Biol.. 60. 981-988 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Koya, Y., H.Munehara, K.Takano: "Sperm storage and motility in the ovary of the marine sculpin Alcichthys alcicornis (Teleostei : Scorpaeniformes), with internal fametic association"J. Exp. Zool.. 292. 145-155 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Munehara, H., Nagai, N., Narimatsu, Y.: "Isolation and characterization of microsatellite markers from the Hypoptychus dybowskii (Pisces, Gasterosteiformes)"Molecular Ecol. Note. 2. 70-71 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hayakawa, Y., H.Munehara: "Ultrastructural observations of eu-and paraspermiogenesis in the cottid fish Hemilepidotus gilberti (teleostei : Scorpaeniformes)"Journal of Morphology. 253. 243-254 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 宗原弘幸: "水産生物の性と行動生態 担当「血縁と配偶システム」"厚生閣恒星社. 33-47 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Narimatsu, Y., H. Munehara: "Territoriality, egg desertion and mating success of a paternal care fish, Hypoptychus dybowskii"Behaviour. 138. 85-96 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Nagao, J., H. Munehara: "Annual reproductive cycle of the helmet crab Telmessus cheiragonus on the sublittoral zones in Usujiri, southern Hokkaido, Japan"Crustacean Res.. 30. 72-81 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Hayakawa, Y., H. Munehara: "Facultatively internal fertilization of non-copulating marine sculpin, Hemilepidotus gilberti Jordan and Starks (Scorpaeniformes : Cottidae)"J. Exp. Mar. Biol. Ecol.. 256. 51-58 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Koya, Y., H. Munehara, K. Takano: "Sperm storage and motility in the ovary of the marine sculpin Alcichthys alcicornis (Teleostei : Scorpaeniformes), with internal fametic association"J. Exp. Zool.. 292. 145-155 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Munehara, H., S. Awata, R. Katoh, M. Kohda, T. Sunobe: "Primer sequences and cross-species amplification for parentage discrimination of Tanganyikan cichlid fishes"Bull. Fish. Sci. Hokkaido Univ.. 52. 131-133 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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