English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26988/38789
Visitors : 2320512      Online Users : 52
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/39614

Title: Reproductive Biology of the Yellow Seabream (Dentex tumifrons ) in the Northern Waters off Taiwan
台灣東北部海域赤鯮(Dentex tumifrons)之生殖生物學
Authors: Cheng-Hsin Liao;Ming Pong;Shaur-Sheen Chyn;Wei-Cheng Su
Contributors: 國立臺灣海洋大學:環境生物與漁業科學學系
Keywords: Yellow seabream;Dentex tumifrons;Reproductive biology;Northern Taiwan
Date: 2009-12
Issue Date: 2016-12-23T08:05:26Z
Publisher: Journal of the Fisheries Society of Taiwan
Abstract: Abstract:Reproductive biology of the yellow seabream (Dentex tumifrons) was described based on 1,400 specimens caught by otter trawlers in the northern waters off Taiwan and landed at Jinshan, Rueifang, and Dasi fishing ports from August 2005 to August 2006. Macroscopic appearance of the ovary, gonadosomatic index, and histological examination suggested that the yellow seabream spawns asynchronously, and spawning peaks in April and October, in the northern waters off Taiwan. Eight stages of oocyte development were determined based on histological examination, and ovarian development can be divided into immature, early maturing, late maturing and matured stages. The sex ratio of 0.704 was significantly different from 0.5 using χ2 test and decreased in compliance with the increasing of fork length in bigger specimens. The relationship between fecundity (F) and gonad weight (GW) was estimated to be F = 11.56 GW + 8.0745 (n = 25, P < 0.05). Mean fecundity (± standard deviation) was estimated at 50151 ± 30379 eggs. Size of fork length (FL) at 50% maturity estimated by using the Logistic model was 154.8 mm and 168.6 mm for females and males, respectively.
Relation: 36(4), pp.233-250
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/39614
Appears in Collections:[環境生物與漁業科學學系] 博碩士論文

Files in This Item:

File Description SizeFormat
03794180-200912-201202250012-201202250012-2-19.pdf3809KbAdobe PDF48View/Open

All items in NTOUR are protected by copyright, with all rights reserved.


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback