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Lifecycle, culture, and maintenance of the emerging cephalopod models Euprymna berryi and Euprymna morsei

Jolly, J; Hasegawa, Y; Sugimoto, C; Zhang, L; Kawaura, R; Sanchez, G; Gavriouchkina, D; ... Rokhsar, D; + view all (2022) Lifecycle, culture, and maintenance of the emerging cephalopod models Euprymna berryi and Euprymna morsei. Frontiers in Marine Science , 9 , Article 1039775. 10.3389/fmars.2022.1039775. Green open access

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Abstract

Cephalopod research remains limited by the inability to culture species under laboratory conditions for multiple generations to provide continuous access to animals at all stages of the life cycle. Here, we describe a multi-generational laboratory culture system for two emerging cephalopod models: the hummingbird or Berry’s bobtail squid, Euprymna berryi Sasaki, 1929, and Morse’s bobtail squid, Euprymna morsei Verrill, 1881, which are primarily found off mainland Japan. E. berryi wild adults were spawned and raised to the third filial generation, and E. morsei wild adults were spawned and raised to the second filial generation in a closed system at 20°C. We report growth and survivorship data for a cohort of 30 individuals across the first generation raised in captivity. E. berryi and E. morsei grew exponentially during the first 90 and 60 days post-hatching, respectively. Survivorship at the first spawning event for E. berryi and E. morsei was 90% and 77%. E. berryi and E. morsei females spawned after days 112 and 71 days post-hatching, respectively. We describe the life history of each species and how to distinguish sexes. We discuss the challenges of cephalopod culture and how culturing these species address those problems.

Type: Article
Title: Lifecycle, culture, and maintenance of the emerging cephalopod models Euprymna berryi and Euprymna morsei
Open access status: An open access version is available from UCL Discovery
DOI: 10.3389/fmars.2022.1039775
Publisher version: https://doi.org/10.3389/fmars.2022.1039775
Language: English
Additional information: © 2022 Jolly, Hasegawa, Sugimoto, Zhang, Kawaura, Sanchez, Gavriouchkina, Marlétaz and Rokhsar. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Keywords: Euprymna, Euprymna berryi, Euprymna morsei, cephalopod, bobtail squid, model organism, aquaculture, developmental biology
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Genetics, Evolution and Environment
URI: https://discovery.ucl.ac.uk/id/eprint/10162985
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