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Age and growth of Pacific saury Cololabis saira (Brevoort) in the western North Pacific Ocean estimated from daily otolith growth increments

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Title: Age and growth of Pacific saury Cololabis saira (Brevoort) in the western North Pacific Ocean estimated from daily otolith growth increments
Authors: Suyama, Satoshi Browse this author
Sakurai, Yasunori Browse this author →KAKEN DB
Shimazaki, Kenji Browse this author
Keywords: Pacific saury
otolith
age determination
daily growth increment
hyaline zone
Issue Date: 1996
Publisher: The Japanese Society of Scientific Fisheries
Journal Title: Fisheries Science
Volume: 62
Issue: 1
Start Page: 1
End Page: 7
Publisher DOI: 10.2331/fishsci.62.1
Abstract: Growth of Pacific saury Cololabis saira (Brevoort) inhabiting the western North Pacific wasstudied based on counting daily growth increments with a scanning electron microscope (SEM). The small-size group (knob length: 200-240mm), medium-size group (knob length: 240-280mm) and largesize group (knob length: >280mm) showed increments of 256±26.0 (S. D.), 405±76.1 and 566±48.2, respectively. Based on daily growth increment formation, we determined that the ages of the 3 groups were about 8, 13, and 19 months. Small- and large-size fish were considered tohave been hatched from autumn to winter, and medium-size fish from spring to summer. The oldest specimen of Pacific saury examined in this study was about 23 months of age; thus, the lifespan of Pacific saury in this area seems to be at least 1.5 years.
Rights: © 1996 公益社団法人日本水産学会
© 1996 The Japanese Society of Fisheries Science
Type: article
URI: http://hdl.handle.net/2115/35566
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: 桜井 泰憲

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