Semi-annual Reproductive Cycle of a Small Flounder Tarphops oligolepis in Wakasa Bay

DOI Web Site Web Site 被引用文献2件 参考文献18件
  • Kamisaka Yuko
    Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University
  • Tagawa Masatomo
    Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University
  • Tanaka Masaru
    Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University

書誌事項

タイトル別名
  • Semi-annual Reproductive Cycle of a Small Flounder <i>Tarphops oligolepis</i> in Wakasa Bay

この論文をさがす

抄録

The annual reproductive cycle of a small flounder (aramegarei), Tarphops oligolepis, was examined in Wakasa Bay from the appearance of recently settled juveniles in the field and the female maturity during a year. Seasonal changes in the distribution of standard length indicated the presence of two spawning periods, July and October, when small juveniles appeared in the nursery ground. In females, gonadsomatic index (GSI) showed a peak (10.8) in spring, decreased to a low level in September (1.1), increased again to form another peak in November (8.3), and declined during winter (2.5). According to the histological observation on ovaries, matured oocytes were also found in two seasons in a year; from April to June and from October to December. From those results, it is concluded that aramegarei of Wakasa Bay has semi-annual reproductive cycle with two spawning seasons in a year; spring and autumn. Moreover, it takes only half a year to spawn at the first time, especially for the fish born in spring. This small flounder, lives in coastal areas and is easily caught, with unique characteristics of maturation, can be a good model for reproductive physiology and ecology of fishes.

収録刊行物

被引用文献 (2)*注記

もっと見る

参考文献 (18)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ