alexa Abstract | Reproductive biology of cyprinid hybrids [S. cephalus (L.) x A. chalcoides (G.)] in Tödürge Lake (Sivas)

Journal of FisheriesSciences.com
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Abstract

In present study, the different reproductive properties of hybrids of Squalius cephalus x Albur-nus chalcoides which occured under natural conditions, were determined. Firstly, the sexual maturity ages for males and females were indicated. The reproductive period was defined ac-cording to the monthly changes of gonadosomatic index, gonad weight, egg diameter and egg number in per gram of ovarium. Mean fecundity was determined for each age group. Both fe-males and males were attained sexual maturity at II age. The values of fork length for the smallest female and male with mature gonads were measured as 123 mm and 127 mm, respec-tively. The maximum value of mean gonadosomatic index for females was determined in May (9.48). However, in July the index revealed minimum values (0.92). The minimum and maxi-mum egg diameters were measured as 0.23 mm and 1.72 mm, respectively. Egg number in per gram of ovarium was changed between 516 and 2665. According to the monthly changes in the gonadosomatic index, gonad weight, egg diameter, and egg number in per gram of ovarium, it was determined that the spawning in hybrids of S. cephalus x A. chalcoides in Tödürge Lake began in May and continued until end of July. Mean fecundity was determined as 2238 for II age group, and as 4250 for III age group. The values of fecundity of the hybrids were quite lower than the values of S. cephalus and A. chalcoides in the same age group.

To read the full article Peer-reviewed Article PDF image | Peer-reviewed Full Article image

Author(s): Blent NVER

Keywords

Chub, Danube bleak intergeneric hybrid, reproduction, Fisheries management, Fish genetics and genome, Aquatic health management

 
Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords