Munakata Mizuho(Faculty of Science　Biological Sciences　Biodiversity)

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Munakata Mizuho

Faculty of Science　Biological Sciences　Biodiversity Specially Appointed Assistant Professor

Researcher basic information

■ Degree

PhD of Science, Hokkaido University, Mar. 2025

■ URL
researchmap URL

https://researchmap.jp/mmunakata?lang=en

ホームページURL

https://jglobal.jst.go.jp/detail?JGLOBAL_ID=202501017819075363

https://orcid.org/0009-0009-4458-7281

■ Various IDs
ORCID ID

https://orcid.org/0009-0009-4458-7281

J-Global ID

202501017819075363

■ Research Keywords and Fields
Research Keyword

taxonomy

population genetics

Ostracoda

biodiversity

Research Field

Life Science, Biodiversity and systematics, 淡水棲貝形虫の系統分類・集団遺伝学

Career

■ Career
Career

Apr. 2025 - Present
Hokkaido University, Faculty of Science, Ambitious Special Assistant Professor

Apr. 2023 - Mar. 2025
日本学術振興会特別研究員DC2

Educational Background

Apr. 2022 - Mar. 2025, Hokkaido University, Graduate School of Science, 博士課程

Research activity information

■ Awards

Mar. 2025, Hokkaido University, Ohtsuka Memorial Award

Apr. 2023, 北海道大学, 2023年度理学院優秀研究奨励賞

Mar. 2022, 日本動物学会北海道支部, 日本動物学会北海道支部第66回大会最優秀発表賞
宗像みずほ・角井敬知

■ Papers

Description and Phylogenetic Position of Thermocypris isabella gen. et sp. nov. (Ostracoda: Cyprididae: Cyprinotinae) from a Hot Spring in Peru
Mizuho Munakata; Hayato Tanaka; Ko Tomikawa; Yoshimi Kawasaki; Alfonso Miranda; Nilton Deza; Keiichi Kakui
Zoological Science, 42, 5, Zoological Society of Japan, 24 Sep. 2025, [Peer-reviewed], [Lead author, Corresponding author]
Scientific journal

Subterranean crustaceans from Shizu River along to the Ryusendo Cave, Japan
Mizuki Ohta; Yusuke Motomura; Mizuho Munakata; Kanato Ando; Shuji Watanabe
Acatic Animals, AA2025, 34, Sep. 2025

Intracellular Localization of the Bacterial Endosymbiont Cardinium in the Ostracod Heterocypris spadix
Kohei Oguchi; Mizuho Munakata; Chizue Hiruta; Keiichi Kakui
Zoological Science, 42, 4, Zoological Society of Japan, 14 Jul. 2025, [Peer-reviewed]
Scientific journal

A New Genus and Species of the Spring-endemic Ostracoda (Cypricercinae, Cyprididae) and its Genetic Population Structure among Rheocrenic Springs in Japan
Mizuho Munakata; Hayato Tanaka; Keiichi Kakui
Zoological Studies, 63, 51, Dec. 2024, [Peer-reviewed], [Lead author]

Lagenophryid ciliophorans on Japanese freshwater ostracods
Munakata M.; Kakui K.
Aquatic Animals, Nov. 2024, [Peer-reviewed], [Lead author]

利尻島に産する淡水生貝形虫
宗像みずほ; 冨岡森理; 角井敬知
利尻研究, 42, 117, 127, Mar. 2023, [Lead author]

A new Sphaeronella species (Copepoda: Siphonostomatoida: Nicothoidae) parasitic on Euphilomedes sp. (Ostracoda: Myodocopa: Philomedidae) from Hokkaido, Japan, with an 18S molecular phylogeny
Keiichi Kakui; Mizuho Munakata
Systematic Parasitology, 100, 2, 121, 131, Springer Science and Business Media LLC, 21 Nov. 2022, [Peer-reviewed]
Scientific journal

Taxonomy and natural history of Cavernocypris hokkaiensis sp. nov., the first ostracod reported from alpine streams in Japan
Mizuho Munakata; Hayato Tanaka; Keiichi Kakui
Zoosystematics and Evolution, 98, 1, 117, 127, Pensoft Publishers, 05 Apr. 2022, [Peer-reviewed], [Lead author]
Scientific journal, We describe the cypridoidean ostracod Cavernocypris hokkaiensis sp. nov. from riverbed sediments in an alpine stream at an elevation of ca. 1850 m in the Taisetsu Mountains, Hokkaido, Japan. This species differs from congeners in having (1) the outer surface of the carapace smooth, with sparse, tiny setae, but without shallow pits; (2) the carapace elongate rather than triangular in lateral view; (3) the antennula consisting of seven podomeres; (4) first palpal podomere of maxillula with five dorsodistal and one ventro-subdistal setae; (5) the fifth limb lacking setae b and d; and (6) the fifth limb lacking a vibratory plate. We provided the key to the Cavernocypris species. We determined partial sequences for the cytochrome c oxidase subunit I (COI; cox1) and 18S rRNA (18S) genes in C. hokkaiensis. Our sample contained only females, and we obtained a partial 16S rRNA sequence for the endosymbiotic bacterium Cardinium from C. hokkaiensis, indicating the possibility that this ostracod species reproduces parthenogenetically. Our field survey and observations of captive individuals suggested that C. hokkaiensis may be endemic to the Taisetsu Mountains, with a low population density, narrow distributional range, and slow maturation to sexual maturity.

淡水生カイミジンコCryptocandona sp.の背甲上から見つかったツリガネムシ目繊毛虫について
角井敬知; 宗像みずほ
小樽市総合博物館紀要, 35, 13, 16, Mar. 2022

Mismatch between similarity of mitochondrial gene order and phylogenetic distance in Podocopa (Crustacea: Ostracoda).
Kakui K.; Munakata M.; Tanaka H.; Hiruta C.
Zoologischer Anzeiger, 293, 145, 148, Jul. 2021, [Peer-reviewed]

利尻町ウニ種苗生産センターの屋外水槽から見つかったエゾナミタナイス（甲殻亜門タナイス目）
角井敬知; 宗像みずほ; 冨岡森理
利尻研究, 40, 1, 32, Mar. 2021

Heterocypris spadix sp. nov. (Crustacea: Ostracoda: Cypridoidea) from Japan, with information on its reproductive mode
Munakata M.; Tanaka H.; Kakui K.
Zoological Science, 38, 287, 296, Feb. 2021, [Peer-reviewed], [Lead author]

■ Lectures, oral presentations, etc.

特異環境に生息する貝形虫類の構造に倣う高機能バイオミメティック材料の創製
野口真司; 宗像みずほ
第11回北大・部局横断シンポジウム, 研究助成ポスター, 02 Oct. 2025

小笠原諸島父島から得られた非海生貝形虫.
宗像みずほ; 富川光; 佐々木哲朗; 髙橋千佳子; 角井敬知
日本動物分類学会第60回大会, 08 Jun. 2025, Oral presentation

MIG-seq 法による微⼩甲殻類の集団解析と系統間⽐較︓湧⽔棲⾙形⾍の複数種を例に.
宗像みずほ; 松井風河; 江指万里; 田中源吾; 角井敬知
日本生態学会第72回大会, 18 Mar. 2025, Poster presentation

A new species of Homocypris (Crustacean, Ostracoda) from a hot spring in Peru
Munakata M.; Tanaka H.; Tomikawa K.; Kawasaki Y.; Miranda Leiva A.; Deza Arroyo N.; Kakui K.
59th Japanese Society of Systematic Zoology, 15 Jun. 2024

東日本湧水域より発見されたマルワカイミジンコCypricercinae亜科貝形虫の未記載属
宗像みずほ; 田中隼人; 角井敬知
日本動物分類学会第58回大会, 03 Jun. 2023

北海道利尻島に産する淡水生貝形虫の分類学的研究
宗像みずほ; 冨岡森理; 角井敬知
日本動物分類学会第57回大会, 04 Jun. 2022

北海道大雪山系から採集された貝形虫綱甲殻類の自然史と系統分類学的研究
宗像みずほ; 角井敬知
日本動物学会北海道支部第66回大会, 09 Mar. 2022

■ Research Themes