Reproduction and Estuarine Utilization of the Grey Mullet,Liza macrolepis(Smith,1846), in the Area of Kaohsiung Harbor,Southern Taiwan

• Chen Meng-Hsien

  Department of Marine Resources, College of Marine Sciences, National Sun Yet-sen University

• Wen Dah-Jye

  Department of Marine Resources, College of Marine Sciences, National Sun Yet-sen University

• Chen Chiee-Young

  Department of Marine Environmental Engineering, National Kaohsiung Institute of Marine Technology

書誌事項

タイトル別名

• Reproduction and Estuarine Utilization of the Grey Mullet, <i>Liza macrolepis</i> (Smith, 1846), in the Area of Kaohsiung Harbor, Southern Taiwan

抄録

This study investigated various aspects of the reproduction of Liza macrolepis and its estuarine utilization in Kaohsiung River and the harbor area. Among ca. 2100 samples collected between February 1992 and June 1996, one hermaphrodite (fork length=22.0cm) was found. The sizes of 50% sexually mature females and males were estimated as 17.0-17.8cm and 16.1-16.7cm in fork length, respectively. The standard fecundity was 6.48±2.82×10³. The relationship between absolute fecundity (AF) and fork length (FL) was expressed as AF=0.00891 FL^2.349. Spawning of L. macrolepis occurred between December and May, and is related to the decreases in sunshine hours, in precipitation and in temperature. The nearshore waters are the spawning grounds of the fish, where spent and mature fish aggregate. The species is a total spawner. One-to-two-months-old fish (1-2cm fork length) probably enter the inner harbor area for its abundant food supply. More females than males move into the inner estuary in the pre-spawning period, and then the fish undertake a seaward spawning migration to the nearshore areas in the spawning season. However, males gather in a greater number than females on the spawning ground during the spawning season. The estuary is a very important feeding ground for juvenile, pre-spawning and post-spawning females L. macrolepis. Our results also indicate a geographic differences in the reproductive characteristics of L. macrolepis.

収録刊行物

• Ｆｉｓｈｅｒｉｅｓ　ｓｃｉｅｎｃｅ

  Ｆｉｓｈｅｒｉｅｓ　ｓｃｉｅｎｃｅ 65 (1), 1-10, 1999

  公益社団法人 日本水産学会

キーワード

• Liza macrolepis
• grey mullet
• estuarine utilization
• size at first maturity
• fecundity
• group synchrony
• inshore feeding migration
• spawning migration

詳細情報

• CRID: 1390001204429041536
• NII論文ID: 130003903296
• NII論文ID: 10004877185
• NII書誌ID: AA10993718
• DOI: 10.2331/fishsci.65.1
• NDL書誌ID: 4665694
• ISSN: 09199268
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4665694
• Web Site: https://www.jstage.jst.go.jp/article/fishsci1994/65/1/65_1_1/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可