Diel changes in the vertical distribution of larval cutlassfish Trichiurus japonicus

Journal of the Marine Biological Association of the United Kingdom Volume 99 Issue 2 Page 517-523 published_at 2018-04-02
アクセス数 : 552
ダウンロード数 : 118

今月のアクセス数 : 10
今月のダウンロード数 : 4
File
JourMarineBiolAssociUK_99_517.pdf 437 KB 種類 : fulltext
Title ( eng )
Diel changes in the vertical distribution of larval cutlassfish Trichiurus japonicus
Creator
Uehara Daichi
Source Title
Journal of the Marine Biological Association of the United Kingdom
Volume 99
Issue 2
Start Page 517
End Page 523
Abstract
Diel vertical migration of the cutlassfish Trichiurus japonicus larvae were investigated by consecutive 24-h collections at 3-h intervals at a station in the central Seto Inland Sea, Japan in June and September. Only one larva was collected in June 2017, while 224 and 40 larvae were collected in September 2016 and 2017, respectively. Larvae were present only at depths of ≥ 11 m during the day, whereas they were present at depths of 1, 6, 11 and 16 m during the night. Migration was observed in larvae in which swim bladder formation was completed. A similar pattern, namely nocturnal occurrence at shallow depths only of the developed larvae, was observed in another 24-h survey, suggesting that the swim bladder regulates the upward movement of larvae at night.
Keywords
Developmental stage
ontogenetic change
swim bladder
Trichiuridae
vertical movement
Descriptions
This work was partly supported by the Environment Research and Technology Development Fund (S-13) granted by the Ministry of the Environment, Japan.
Language
eng
Resource Type journal article
Publisher
Cambridge University Press
Date of Issued 2018-04-02
Rights
© Marine Biological Association of the United Kingdom 2018. This article has been published in a revised form in Journal of the Marine Biological Association of the United Kingdom, https://doi.org/10.1017/S002531541800019X. This version is free to view and download for private research and study only. Not for re-distribution or re-use.
This is not the published version. Please cite only the published version. この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。
Publish Type Author’s Original
Access Rights open access
Source Identifier
[ISSN] 0025-3154
[ISSN] 1469-7769
[DOI] 10.1017/S002531541800019X
[DOI] https://doi.org/10.1017/S002531541800019X