Publications

[Peer reviewed papers]


31) Shota Hosono, Yoshio Masuda, Shun Tokioka, Tomohiko Kawamura, Yoko Iwata

Squid male alternative reproductive tactics are determined by birth date

Proceedings of the Royal Society B, 291: 20240156, 2024 Open Access 


30) Arata Nakayama, Shunsuke Momoi, Noriyosi Sato, Tomohiko Kawamura, Yoko Iwata

Ritualized ink use during visual courtship display by males of the sexually dimorphic cuttlefish Sepia andreana

Ecology & Evolution, 14(2): e10852, 2024 Open Access

  

29) Noriyosi Sato, Hiroki Ono, Noritaka Hirohashi, Yoko Iwata

Multiplicity of sperm receptacles for securing the offspring genetic variability in a pelagic squid

Marine Biology, 170: 51, 2023


28) Shota Hosono, Takahiro Irie, Jun Yamamoto, Mitsuhiro Nakaya, Yasunori Sakurai, Tomohiko Kawamura, Yoko Iwata

Negative temperature dependence of statolith Sr/Ca and its intraspecific variability in experimentally maintained spear squid Heterololigo bleekeri

Journal of Marine Biological Association of the United Kingdom, 102(5), 315-321, 2022


27) Yumeng Pang, Chih-Shin Chen, Tomohiko Kawamura, Yoko Iwata

Environmental influence on life-history traits in male squid Uroteuthis edulis with alternative reproductive tactics

Marine Biology, 169: 33, 2022 Open Access 


26) Noritaka Hirohashi, Noriyori Sato, Yoko Iwata, Satoshi Tomano, Md. Nur E. Alam, Ligia H. Apostolico, Jose E. A. R. Marian

Context-dependent behavioural plasticity compromises disruptive selection of sperm traits in squid

PLOS ONE, 16(8): e0256745, 2021 Open Access 


25) Yoko Iwata, Noriyosi Sato, Noritaka Hirohashi, Yoshiro Watanabe, Warwick H. H. Sauer, Paul W. Shaw

Sperm competition risk affects ejaculate strategy in terms of sperm number but not sperm size in squid

Journal of Evolutionary Biology: 34: 1352-1361, 2021 

*Selected as an "Editor's Choice" article and the Journal Cover of the issue.


24) Riho Murai, Mamiya Shiomi, Masa-aki Yoshida, Satoshi Tomano, Yoko Iwata, Kyoko Sugai, Noritaka Hirohashi

All the spermatangia on a female were implanted by 1 single-pair copulation in giant squid Architeuthis dux

Deep Sea Research I, 175: 103585, 2021


23) Yumeng Pang, Chih-Shin Chen, Yoko Iwata

Variations in female swordtip squid Uroteuthis edulis life history traits between southern Japan and northern Taiwan (Northwestern Pacific) 

Fisheries Science, 86(6): 1005-1017, 2020


22) 武邑 沙友里, 白藤 徳夫, 山根 広大, 村瀬 偉紀, 岩田 容子, 河村 知彦, 渡邊 良朗

ニシンにおける雌親魚サイズと卵仔魚サイズの関係 

日本水産学会誌, 86(6): 466-475, 2020


21) Noriyosi Sato, Sei‑Ichiro Tsuda, Md. Nur E. Alam, Tomohiro Sasanami, Yoko Iwata, Satoshi Kusama, Osamu Inamura, Masa‑aki Yoshida,  Noritaka Hirohashi

Rare polyandry and common monogamy in the firefly squid, Watasenia scintillans

Scientific Reports, 10: 10962, 2020


20) José E.A.R. Marian, Lígia H. Apostólico, Chuan-Chin Chiao, Roger T. Hanlon, Noritaka Hirohashi, Yoko Iwata, Jennifer Mather, Noriyosi Sato, Paul W. Shaw

Male alternative reproductive tactics and associated evolution of anatomical characteristics in loliginid Squid

Frontiers in Physiology, 10: 1281, 2019


19)  Noriyosi Sato, Yoko Iwata, Paul W. Shaw, Warwick H.H. Sauer

Whole spermatangia within the seminal receptacle of female chokka squid (Loligo reynaudii d'Orbigny, 1839-1841)

Journal of Molluscan Studies, 85: 172-176, 2019


18) Yoko Iwata, Noriyosi Sato, Noritaka Hirohashi, Takashi Kasugai, Yoshiro Watanabe, Eiji Fujiwara

How female squid inseminate their eggs with stored sperm

Current Biology, 29(2): R48-R49, 2019


17) Yoko Iwata, Warwick H.H. Sauer, Noriyosi Sato, Paul W. Shaw

Spermatophore dimorphism in the chokka squid Loligo reynaudii associated with alternative mating tactics

Journal of Molluscan Studies, 84: 157-162, 2018


16) Tomohiro Iida, Yoko Iwata, Tatsuma Mori, Shoji A. Baba, Noritaka Hirohashi

A coordinated sequence of distinct flagellar waveforms enables a sharp flagellar turn mediated by squid sperm pH-taxis

Scientific Reports, 7: 12938, 2017


15) Noritaka Hirohashi, Miwa Tamura-Nakano, Fumio Nakaya, Tomohiro Iida, Yoko Iwata

Sneaker male squid produce long-lived spermatozoa by modulating their energy metabolism

Journal of Biological Chemistry, 291: 19324-19334, 2016


14) Noritaka Hirohashi, Tomohiro Iida, Noriyosi Sato, Warwick H. Sauer, Yoko Iwata

Complex adaptive traits between mating behavior and post-copulatory sperm behavior in squids

Reviews in Fish Biology and Fisheries, 26: 601-607, 2016


13) Yoko Iwata, Yasunori Sakurai, Paul Shaw

Dimorphic sperm-transfer strategies and alternative mating tactics in loliginid squid

Journal of Molluscan Studies, 81: 147-151, 2015


12) Masa-aki Yoshida, Lixy Yamada, Hiroe Ochi, Yoko Iwata, Miwa Tamura-Nakano, Hitoshi Sawada, Warwick H Sauer, Atsushi Ogura, Noritaka Hirohashi

Integrative omics analysis reveals differentially distributed proteins in dimorphic euspermatozoa of the squid, Loligo bleekeri

Biochemical and Biophysical Research Communications, 450(3): 1218-1224, 2014


11) Noritaka Hirohashi, Yoko Iwata 

The different types of sperm morphology and behavior within a single species: Why do sperm of squid sneaker males form a cluster? 

Communicative & Integrative Biology, 6(6): e26729, 2013


10) Noritaka Hirohashi, Luis Alvarez, Kogiku Shiba, Eiji Fujiwara, Yoko Iwata, Tatsuma Mohri, Kazuo Inaba, Kazuyoshi Chiba, Hiroe Ochi, Claudiu T. Supuran, Nico Kotzur, Yasutaka Kakiuchi, U. Benjamin Kaupp, Shoji A. Baba 

Sperm from sneaker male squids exhibit chemotactic swarming to CO2

Current Biology, 23: 775-781, 2013


9) Yoko Iwata, Paul Shaw, Eiji Fujiwara, Kogiku Shiba, Yasutaka Kakiuchi, Noritaka Hirohashi

Why small males have big sperm: dimorphic squid sperm linked to alternative mating behaviours

BMC Evolutionary Biology, 11: 236, 2011

 

8) Noriko Azuma, Yuta Seki, Yoshiaki Kikkawa, Tomoyuki Nakagawa, Yoko Iwata, Taku Sato, Hiroyuki Munehara, Susumu Chiba

Isolation and characterization of 13 polymorphic microsatellites for the Hokkai Shrimp, Pandalus latirostris

Conservation Genetics Resources, 3: 529-531, 2011

 

7) Yoko Iwata, Kingo Ito, Yasunori Sakurai

Is commercial harvesting of spawning aggregations sustainable? -The reproductive status of the squid Loligo bleekeri

Fisheries Research, 102: 286-290, 2010

 

6) Yoko Iwata, Kingo Ito, Yasunori Sakurai

Effect of low temperature on the mating behaviour of the squid Loligo bleekeri

Fisheries Science, 74: 1345-1347, 2008

 

5) Yoko Iwata, Chunlan Lian, Yasunori Sakurai

Development of microsatellite markers in the Japanese common squid Todarodes pacificus (Ommastrephidae)

Molecular Ecology Resources, 8: 466-468, 2008

 

4) Yoko Iwata, Yasunori Sakurai

Threshold dimorphism in ejaculate characteristics in the squid Loligo bleekeri

Marine Ecology Progress Series, 345: 141-146, 2007

 

3) 伊藤欣吾, 柳本卓, 岩田容子, 宗原弘幸, 桜井泰憲

ミトコンドリアDNAの塩基配列分析によるヤリイカの遺伝的集団構造

日本水産学会誌, 72(5): 905-910, 2006

 

2) Yoko Iwata, Hiroyuki Munehara, Yasunori Sakurai

Dependence of paternity rates on alternative reproductive behaviors in the squid Loligo bleekeri

Marine Ecology Progress Series, 298: 219-228, 2005

 

1) Yoko Iwata, Hiroyuki Munehara, Yasunori Sakurai

Characterization of microsatellite markers in the squid, Loligo bleekeri (Cephalopoda: Loliginidae)

Molecular Ecology Notes, 3: 392-393, 2003


 

[Book chapters]


Yoko Iwata, Noritaka Hirohashi

Behavior and fertilization of squids

In "Reproduction in Aquatic Animals (Eds, Yoshida M and Austuriano JF)", Springer, p277-290, 2020


Mei Matsuzaki, Tomohiro Sasanami, Yoko Iwata, Noritaka Hirohashi. 

Postcopulatory reproductive strategies in spermatozoa

In “Reproductive and Developmental Strategies, Diversity and Commonality in Animals (Eds, Kobayashi et al.) ”, Springer, p463-478, 2018


岩田容子

In「海の温暖化変わりゆく海と人間活動の影響」イカ類資源, 日本海洋学会編, 朝倉書店, 2017


Noritaka Hirohashi, Yoko Iwata, Warwick H.H. Sauer, Yasutaka Kakiuchi 

Respiratory CO2 mediates sperm chemotaxis in squids 

In "Sexual Reproduction in Animals and Plants (Eds, Sawada H, Inoue N, Iwano M)", Springer, p13-21, 2014


出口竜作, 岩田容子, 広橋教貴

In「動植物の受精学 ─ 共通機構と多様性」12章 軟体動物の受精, p185-202, 2014


岩田容子

第3章 イカの生理と生態

In「函館イカマイスター認定制度公式テキストブック」 p35-44, 2007



[Monographs]


岩田容子

ヤリイカの繁殖生態に関する研究(総説)

日本水産学会誌,78(4): 665-668, 2012



[Others]


岩田容子, 広橋教貴

ヤリイカ類の繁殖戦略:性淘汰研究の新たなモデルをめざして

海洋と生物, 43(3): 234-240, 2020

 

岩田容子

水産科学の分野で活躍する女性たち 

日本水産学会誌, 79(4): 746, 2013


岩田容子

水産研究のフロントから-国際頭足類諮問機構シンポジウムに参加して-

日本水産学会誌, 72(4): 754, 2006


岩田容子

ヤリイカにおける精子競争-2つの交接様式と2つの精子貯蔵場所-

生物の科学「遺伝」, NTS Inc, 50 (3): 51-54, 2006


岩田容子, 桜井泰憲

ヤリイカ雄における成熟特性-代替繁殖戦術との対応-

イカ類資源研究会議報告, 日本海区水産研究所, 57-59, 2005


岩田容子, 宗原弘幸, 桜井泰憲

ヤリイカ雄の繁殖行動における体サイズの影響

イカ類資源研究会議報告, 日本海区水産研究所, 57-59, 2004


岩田容子, 伊藤欣吾, 桜井泰憲

飼育実験によるヤリイカ産卵好適水温の推定

イカ類資源研究会議報告, 東北区水産研究所, 34-37, 2002