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Embryonic development and effect of water temperature on hatching of Lophius litulon

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Title: Embryonic development and effect of water temperature on hatching of Lophius litulon
Authors: Ishikawa, Tomoya Browse this author
Nakaya, Mitsuhiro Browse this author →KAKEN DB
Takatsu, Tetsuya Browse this author →KAKEN DB
Keywords: Early development
Hatching process
Incubation temperature
Issue Date: Jan-2022
Publisher: Springer
Journal Title: Environmental biology of fishes
Volume: 105
Issue: 1
Start Page: 77
End Page: 86
Publisher DOI: 10.1007/s10641-021-01195-4
Abstract: Most Lophiiformes including Lophius species are considered to spawn egg masses called an "egg veil" or "egg ribbon" composed of numerous mucoid chambers. However, Lophius eggs have been rarely collected in the field and thus little is known about their biological features. Here we examined the embryonic development of Lophius litulon and also the effects of water temperature on the embryonic development of eggs from egg veils collected in the field. Embryonic development was observed from the late cleavage stage to hatching. Low rates of mortality and deformity of embryos and early larvae were observed at 13-21 degrees C. The estimated appropriate water temperature range closely approximated the range of temperatures (12-20 degrees C) at which egg veils of L. litulon have been found in the field. Embryonic development accelerated with increased water temperatures. These results will enable estimation of the origin of and passive movement of egg veils and subsequently larvae and will help to reveal the spatiotemporal distribution of the spawning and nursery grounds of L. litulon.
Rights: This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at:
Type: article (author version)
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 高津 哲也

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