AWATA Satoshi

写真a

Search Institutional Repository


Title

Associate Professor

Laboratory location

Sugimoto Campus

Degree 【 display / non-display

  • Osaka City University -  Doctor (Science)

Research Areas 【 display / non-display

Ecology/Environment

Research Interests 【 display / non-display

Cichlids, Parasitism, Marine sculpins, Mutualism, Sperm competition, Sperm evolution, Reproductive strategy, Behavioral Ecology, Female control, Fishes

Committee Memberships 【 display / non-display

  • 2019.01
    -
    2019.09

    The Ichthyological Society of Japan  

  • 2010.04
    -
    Today

    Journal of Ethology   Associate Editor

Current Career 【 display / non-display

  • Osaka City University   Graduate School of Science   Biology and Geosciences Course   Associate Professor  

Graduate School 【 display / non-display

  • 1998.04
    -
    2005.03

    Osaka City University  Graduate School, Division of Natural Science 

Graduating School 【 display / non-display

  • 1994.04
    -
    1998.03

    Osaka University   Faculty of Science  

 

Published Papers 【 display / non-display

  • Insufficient data render comparative analyses of the evolution of cooperative breeding mere speculation: A reply to Dey et al.

    Taborsky Michael, Koblmueller Stephan, Sefc Kristina M., McGee Matthew, Kohda Masanori, Awata Satoshi, Hori Michio, Frommen Joachim G.

    ETHOLOGY  2019.07  [Refereed]

    DOI

  • Host selection and ovipositor length in eight sympatric species of sculpins that deposit their eggs into tunicates or sponges

    Awata Satoshi, Sasaki Haruka, Goto Tomohito, Koya Yasunori, Takeshima Hirohiko, Yamazaki Aya, Munehara Hiroyuki

    MARINE BIOLOGY  166 ( 5 )  2019.05  [Refereed]

    DOI

  • Do Scales of the Cichlid Altolamprologus compressiceps in Lake Tanganyika Function as a Morphological Defense Against Scale-Eating?

    Mushagalusa Deo C., Awata Satoshi, Satoh Shun, Ota Kazutaka, Hori Michio, Nshombo Muderhwa, Kohda Masanori

    ZOOLOGICAL SCIENCE  36 ( 2 ) 147 - 153 2019.04  [Refereed]

    DOI

  • If a fish can pass the mark test, what are the implications for consciousness and self-awareness testing in animals?

    Kohda M, Hotta T, Takeyama T, Awata S, Tanaka H, Asai JY, Jordan AL

    PLoS biology  17 ( 2 ) e3000021 2019.02  [Refereed]

    DOI PubMed

  • Dynamics of Laterality in Lake Tanganyika Scale-Eaters Driven by Cross-Predation

    Hori Michio, Kohda Masanori, Awata Satoshi, Takahashi Satoshi

    SYMMETRY-BASEL  11 ( 1 )  2019.01  [Refereed]

    DOI

display all >>

Review Papers (Misc) 【 display / non-display

Conference Activities & Talks 【 display / non-display

  • タンガニイカ湖産カワスズメ科魚類における協同繁殖

    佐伯泰河, 佐藤駿, 安房田智司, 幸田正典

    日本生態学会大会講演要旨(Web)  2019.02 

  • 海産の卵寄託魚では宿主の種類やサイズの違いが産卵管形態の種内変異を生み出す

    安房田智司, 五十嵐直, 瓜生知史, 古屋康則, 宗原弘幸

    日本生態学会大会講演要旨(Web)  2019.02 

  • 交尾に伴う精子の進化は海産魚類でどの程度共通しているか?近縁種同士の比較から

    伊藤岳, 守田昌哉, 稲葉一男, 柴小菊, 本間光雄, 安房田智司

    日本生態学会大会講演要旨(Web)  2019.02 

  • 佐渡島の河川におけるハゼ科魚類の回遊パタンと環境との関係

    飯田碧, 木戸杏香, 浅田稜二, 小黒環, 白井厚太朗, 安房田智司, 満尾世志人

    日本生態学会大会講演要旨(Web)  2019.02 

  • 基質産卵魚ではじめて見つかった古典的一妻多夫:性役割の逆転を伴う繁殖特性

    MUSHAGALUSA Deo, 安房田智司, 太田和孝, 幸田正典

    日本生態学会大会講演要旨(Web)  2019.02 

display all >>

Grant-in-Aid for Scientific Research 【 display / non-display

  • Elucidation of metapopulation structure of the endangered fish Ryukyu-ayu for planning its conservation

    Project/Area Number : 15K07538  Grant-in-Aid for Scientific Research(C) Partaker / Other

    Project Year :

    2015.04
    -
    2018.03
     

  • Parapatric evolution and adaptive divergence of Insular fishes along the Oyashio current

    Project/Area Number : 25304011  Grant-in-Aid for Scientific Research(B) Partaker / Other

    Project Year :

    2013.04
    -
    2016.03
     

    Partaker : YABE Mamoru, KOYA Yasunori, AWATA Satoshi, ABE Takuzou

     View Summary

    Sampling of Cottoids (Cottidae, Rhamphocottidae, Psychrolutidae, Agonidae, Cyclopteryidae, Hexagrammidae) using with SCUBA diving was conducted at Kamchatka Islands, Unalaska and Vancouver, and sampling by trawl net from University training ship also done in the Arctic Ocean. We successfully collected about 50 species from precise species identification after research. We carried out a molecular phylogenetic analysis from 6 families 47 genera 92 species including specimens collected in this study. As results we proposed some hypotheses such as species divergences from offshore to coastal area, disruptive evolution of species distributing in the East Pacific and the West Pacific and large phylogenetic vertical migration by lacking bladder. We also investigated the evolutional process of invasion to the Arctic Ocean by cottid fishes from genetic analyses of antifreeze proteins.

  • Molecular mechanisms of semilunar-synchronized spawning rhythm in the grass puffer: Regulation by a novel biological clock and environmental factors

    Project/Area Number : 24570069  Grant-in-Aid for Scientific Research(C) Partaker / Other

    Project Year :

    2012.04
    -
    2016.03
     

    Partaker : HATTORI Atsuhiko, KUROKAWA Daisuke, NOZAKI Masumi, AWATA Satoshi, DOI Hiroyuki

     View Summary

    To elucidate molecular mechanisms of a novel clock that produces ultradian rhythm in the MelR gene expression in the brain of grass puffer, a transcriptome analysis was conducted by RNA sequencing to search genes that exhibit ultradian oscillations in expression. In the diencephalon, more than 200 genes were identified as potential ultradian expression genes including genes involved in neural and signal transduction activities. A MelR promoter-EGFP DNA was constructed to be microinjected into single-cell stage of embryos. EGFP expression was detected in some cells in the lateral region along the body at 2-3 dpf, but not in the brain. Further studies will be needed to examine the promoter region responsible for the ultradian gene expression. In 3-4 dph larvae, MelR gene showed daily variations in expression under light/dark condition. In addition, cryptochrome, a circadian clock gene, showed daily, circadian and lunar-synchronized expressions in the diencephalon.

  • Study on the evolution of sexual traits and sperm characteristics in marine sculpins with diverse reproductive strategies

    Project/Area Number : 24770016  Grant-in-Aid for Young Scientists(B) Representative

    Project Year :

    2012.04
    -
    2015.03
     

     View Summary

    Marine sculpins exhibit diverse reproductive modes and parental behaviors within a family Cottidae: non-copulatory with paternal care, copulatory with paternal care, copulatory with maternal care and copulatory with no-care. In the present study, the effects of reproductive modes and the mode of parental care on the evolution of sexual traits (male genitalia and sexual dimorphism) and sperm characteristics (sperm morphology and motility) were investigated in 18 species of marine sculpins showing different reproductive behaviors. The results showed that reproductive modes and the modes of parental care were significantly associated with sexual traits and sperm characteristics, suggesting that sexual traits and sperm may have evolved in relation to changes in reproductive behaviors.

  • Genetic and ecological studies of the origin and reproduction about hemi-clonal hybrids that were first found from marine fishes

    Project/Area Number : 23380107  Grant-in-Aid for Scientific Research(B) Partaker / Other

    Project Year :

    2011.04
    -
    2014.03
     

    Partaker : ARAI Katsutoshi, AWATA Satoshi, HAYAKAWA Youichi

     View Summary

    Hexagrammos populations including the hemi-clone strains were analyzed with genetic markers. Ecological researches and artificial closs breeding suggested that hemiclonal strains were different from F1 hybrids between pure species and possess certain genetic materials to hemi-clonally reproduce. In addition one or two sets of chromosomes of hemi-clonal strains fused as the Robertson translocation. The clossbreeding experiments suggested that the translocation may be inducing factors of hemiclone reproduction.
    A hypothesis concerning the longevity of hemiclonal strains was proposed based on these findings. Hemiclone hybrids usually mate with males of paternal ancestors, but the hybrid would possess the same genome composition as the hemiclone origin species if the hybrids mate with males of maternal ancestors. This type produces recombined gametes, so hemiclonal genome can produce renewal genetical diversity. Thus, the longevity of hemiclonal reproduction will be guaranteed.

 

Other educational activity and Special note 【 display / non-display

  • Contribution to internationalization

    (2018)

  • Improvement of educational methods

    (2018)

  • Contribution to internationalization

    (2017)

  • Improvement of educational methods

    (2017)

 

Foreigner acceptance 【 display / non-display

  • Academic year : 2018

     View Details

    Number of foreigners accepted
    0
    Number of International Students
    1

    Democratic Republic of the Congo

  • Academic year : 2017

     View Details

    Number of foreigners accepted
    1
    Number of International Students
    1

    United States of America, Democratic Republic of the Congo