AWATA Satoshi

写真a

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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

  • 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

  • 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

  • Evolutionary transitions to cooperative societies in fishes revisited

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

    ETHOLOGY  124 ( 11 ) 777 - 789 2018.11  [Refereed]

    DOI

  • First Record of Ophionereis sasakii (Echinodermata: Ophiuroidea) from Nigata Prefecture, Japan

    幸塚久典, 安房田智司

    ホシザキグリーン財団研究報告  ( 21 ) 269‐272 2018.03

    J-GLOBAL

  • Dynamics of sibling aggression of a cichlid fish in Lake Tanganyika

    Shun Satoh, Kazutaka Ota, Satoshi Awata, Masanori Kohda

    Hydrobiologia  2018.01  [Refereed]

     View Summary

    © 2018, Springer Nature Switzerland AG. Siblings often compete for limited resources, particularly food provided by their parents. Such competition is usually nonviolent, but direct aggression has evolved in some species. However, there is little knowledge about sibling aggression in species without parental provisioning. Here, we investigated sibling aggression in the cichlid Neolamprologus furcifer in Lake Tanganyika, Zambia. In this species, females guard their broods in the nest but do not provide any food. Early-stage fry did not show any sibling aggression while foraging on plankton, but began to show nonlethal aggression once they started to forage on small benthic shrimp at 2 weeks of age. The frequency of sibling aggression decreased at week 7, when the density of fry decreased remarkably. Sibling aggression also decreased following a short-term increase in food through supplemental feeding. The aggression was higher in the morning than in the afternoon despite higher abundance of shrimp at that time, and decreased when the number of shrimp in the nest was experimentally reduced. These results indicate that food availability affects sibling aggression of animals that do not exhibit parental provisioning.

    DOI

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Review Papers (Misc) 【 display / non-display

Conference Activities & Talks 【 display / non-display

  • 魚類行動生態学,そのおもしろさと次世代研究

    安房田智司  [Invited]

    日本魚類学会設立50周年記念シンポジウム  2018.10 

  • 体外受精から体内受精へ:バイカルカジカ類における精子の進化

    伊藤岳, 木下泉, 東島昌太郎, 田原大輔, 後藤晃, SIDELEVA Valentina, 安房田智司

    日本魚類学会年会講演要旨  2018.10 

  • 初めて明らかとなった奄美大島産リュウキュウアユのメタ個体群構造

    武島弘彦, 小黒環, 佐久間啓, 久米元, 米沢俊彦, 西田睦, 井口恵一朗, 安房田智司

    日本魚類学会年会講演要旨  2018.10 

  • ゼブラガニ雄による宿主(ラッパウニ)の操作:夏の夜,雄は雌の家まで車を走らせる

    幸田正典, 野崎龍彦, 神田橋由久, 太田和孝, 平田智法, 安房田智司

    日本動物行動学会大会発表要旨集  2018.09 

  • 魚類における優劣関係の記憶時間:忘れることは適応的なのか?

    堀田崇, 安房田智司, 幸田正典

    日本動物行動学会大会発表要旨集  2018.09 

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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