Winter longitudinal variation in the body size of larval fishes in the Seto Inland Sea, Japan

Fisheries Science Volume 83 Page 373-382 published_at 2017-03-23
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Title ( eng )
Winter longitudinal variation in the body size of larval fishes in the Seto Inland Sea, Japan
Creator
Shigematsu Yuya
Source Title
Fisheries Science
Volume 83
Start Page 373
End Page 382
Abstract
This study revealed the spatial variation in abun-dance and body size of larval fishes in the Seto Inland Sea, Japan, in January 2014 and 2015. Fish larvae were col-lected by a 1.3-m-diameter ring net towed at the surface and at 10-m depth at 21 stations. The most dominant spe-cies was the sandlance Ammodytes japonicus, constituting 82% of total larval fish caught. The body size of A. japoni-cus was greater [ca. 9 mm total length (TL) in 2014] in eastern areas than in western areas (ca. 5 mm TL in 2014). This trend was also observed in rockfishes (Sebastiscus marmoratus and Sebastes inermis species complex), sug-gesting a common phenomenon in this region. Because the water temperature was lower in eastern areas, it is likely that the longitudinal differences in larval body size are attributable to earlier spawning in eastern areas caused by different temperature conditions.
Keywords
Oceanographic condition
Hatching timing
Larval growth
Spawning season
Descriptions
This work was partly supported by the Environment Research and Technology Development Fund (S-13) granted by the Ministry of the Environment, Japan.
Electronic supplementary material: The online version of this article (doi:10.1007/s12562-017-1076-2) contains supplementary material, which is available to authorized users.
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Language
eng
Resource Type journal article
Publisher
Springer
Date of Issued 2017-03-23
Rights
© Japanese Society of Fisheries Science 2017
This is a post-peer-review, pre-copyedit version of an article published in Fisheries Science. The final authenticated version is available online at: https://doi.org/10.1007/s12562-017-1076-2
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] 0919-9268
[ISSN] 1444-2906
[DOI] 10.1007/s12562-017-1076-2
[DOI] https://doi.org/10.1007/s12562-017-1076-2