Collection and aging of greater amberjack Seriola dumerili larvae and juveniles around the Penghu Islands, Taiwan

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• 作者：Takamasa Hasegawa ; Hsin-Ming Yeh ; June-Ru Chen ; Chin-Lau Kuo…
• 关键词：Greater amberjack ; Seriola dumerili ; Aging ; Otolith ; Early life history
• 刊名：Ichthyological Research
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：64
• 期：1
• 页码：145-150
• 全文大小：
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Zoology; Ecology; Animal Systematics/Taxonomy/ Biogeography; Freshwater & Marine Ecology;
• 出版者：Springer Japan
• ISSN：1616-3915
• 卷排序：64

文摘

To investigate the early life history of Seriola dumerili, we first validated otolith daily increments using reared fish (11–51 days after hatching). Four larval and early-juvenile S. dumerili were collected in May and July 2015 around the Penghu Islands, Taiwan (23.45–23.70 °N, 119.40–119.70 °E), by surface larval net towing, but not from drifting seaweeds. Seriola dumerili were caught at the thermal front, and the total lengths and ages ranged 7.4–42.5 mm and 18–56 days, respectively. Our results indicate that the hatching dates of S. dumerili were April to June and larvae may have been accumulated in the frontal zone before the juvenile phase.