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タイトル: Ages of the giant mottled eel Anguilla marmorata recruited at the northern Luzon Island, the Philippines between 2009 and 2011
著者: Nakazato, Sho
Minagawa, Takuya
Shirotori, Fumiaki
Shinoda, Akira
Aoyama, Jun
Yoshinaga, Tatsuki
キーワード: Anguilla marmorata
freshwater eel
giant mottled eel
glass eel
otolith
Philippines
発行日: 2016年
出版者: International Coastal Research Center, Atmosphere and Ocean Research Institute, the University of Tokyo
掲載誌情報: Coastal marine science. Vol. 39, No. 1, 2016, pp. 1-4
抄録: To accumulate information on the larval transportation of the freshwater eels in the North Pacific, we examined the ages of the giant mottled eel Anguilla marmorata recruited at the northern Philippines. The glass eel specimens analyzed were collected at the river mouth of the Cagayan River in the Luzon Island in January 2009, November 2011 and November 2012, and the daily increment rings of the otoliths were observed to determine the ages at recruitment (n=14). There was no significant difference in the ages at recruitment among the 2009- (147.0 ± 24.4 days; 126–182), 2011- (145.2 ± 17.3; 122–161) and 2012-groups (136.0 ± 11.1; 122–145), and were in the range of those in the previous studies at the same place. Further efforts to accumulate information on the ages at recruitment at various localities and timings will be important to comprehensively understand the early life history of A. marmorata in the North Pacific.
URI: http://hdl.handle.net/2261/60835
ISSN: 13493000
出現カテゴリ:Coastal Marine Science
Coastal Marine Science

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