Comparison of growth histories of immature Japanese common squid Todarodes pacificus between the autumn and winter spawning cohorts based on statolith and gladius analyses

• Song, Hyejin

• Yamashita, Norio

• Kidokoro, Hideaki

• Sakurai, Yasunori

Bibliographic Information

Other Title

• 平衡石と軟甲解析に基づくスルメイカ秋・冬生まれ群の未成体期における成長履歴の海域間比較

Abstract

Growth of the autumn and winter spawning cohorts of the Japanese common squid Todarodes pacificus was examined based on daily growth increments in the statolith and gladius. The samples comprised three groups of young (≤180 days-old) squid: autumn cohort collected in the Tsushima Current and winter cohort collected in the Pacific near the coast and 1100 km offshore. The growth rate based on statolith analysis was highest in the winter cohort collected near the coast and similar in the two other groups. The daily growth based on gladius analysis during the month before capture was also highest in the winter cohort collected near the coast and fluctuated more in the autumn cohort than in the winter cohort. The results suggest that gladius growth increments will be an important tool in future studies of growth in T. pacificus.

Journal

• Fisheries Science

  Fisheries Science 78 (4), 785-790, 2012-07

  Springer Japan

Keywords

• Age
• Growth
• Gladius
• Statolith
• Todarodes pacificus

Details

• CRID: 1050001339011850880
• NII Article ID: 10030500017
• NII Book ID: AA10993718
• HANDLE: 2115/49799
• NDL BIB ID: 023816777
• ISSN: 09199268
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023816777
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • NDL
  • CiNii Articles