alexa Length-Weight Relationships of Some Economic Fishes of
ISSN: 2155-9546

Journal of Aquaculture Research & Development
Open Access

Like us on:
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)

Research Article

Length-Weight Relationships of Some Economic Fishes of Ibeshe Waterside, Lagos Lagoon, Nigeria

Josef Bamidele Bolarinwa1* and Popoola Q2
1Department of Fisheries Technology, Lagos State Polytechnic, P.M.B 21606, Ikeja, Lagos, Nigeria
2Department of Animal Production Technology, Lagos State Polytechnic, P.M.B 21606, Ikeja, Lagos, Nigeria
Corresponding Author : Josef Bamidele Bolarinwa
Department of Fisheries Technology
Lagos State Polytechnic
P.M.B 21606, Ikeja, Lagos, Nigeria
E-mail: [email protected]
Received September 09, 2013; Accepted October 28, 2013; Published November 16, 2013
Citation: Bolarinwa JB, Popoola Q (2013) Length-Weight Relationships of Some Economic Fishes of Ibeshe Waterside, Lagos Lagoon, Nigeria. J Aquac Res Development 5:203. doi:10.4172/2155-9546.1000203
Copyright: © 2013 Bolarinwa JB, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Related article at
DownloadPubmed DownloadScholar Google
 

Abstract

This study describes the length-weight relationships (LWR) and condition factor (K) of six (6) fish species of ecological and economic importance found in Ibeshe waterside area of Lagos lagoon, Nigeria. A total of 154 specimens of Chrysichthys nigrodigitatus , Pomadasy jubelini, Elops lacerta, Cynoglossus senegalensis, Polydactylus quadrifilis and Sphraena piscatorium were collected from the local fishermen during the late rainy period for three months (August 2012 to October 2012) and their total lengths (TL) and weights(W) recorded. A high positive correlation significant at 0.01 levels (2-tailed) exists between the weight and total length of each fish using Pearson’s correlation coefficient (+0.90 to +0.98). The values of constants’ a’ and’ b’ were determined from the length and weight data when transformed into the growth equation: log W=log a+ blog TL. The values of b for the fishes varied from -0.15 to 3.38. The growth pattern of Chrysichthys nigrodigitatus was represented by the equation Log W= 2.24 - 0.15 Log TL, Pomadasy jubelini by Log W = -2.32 + 3.38Log TL, Elops lacerta by Log W = 0.41 + 1.04 Log TL, Cynoglossus senegalensis by Log W = -1.37 + 2.37 Log TL), Polydactylus quadrifilis by Log W = -1.25 + 2.33 Log TL and Sphraena piscatorium by Log W = -1.11 + 2.23Log TL. These values of “b” shows that most of the fishes collected from the Ibeshe waterside of Lagos lagoon displayed negative allometric growth pattern apart from Pomadasy jubelini. The condition factor (K), a reflection of the well-being and degree of fatness ranged from 0.56 in Sphraena piscatorium to 1.62 in Pomadasy jubelini and all these condition factors fall outside the range recommended as suitable for matured fresh water species in the tropics. This might indicate that Ibeshe waterside may be environmentally unfavourable to fishes in the aquatic ecosystem.

Keywords

Share This Page

Additional Info

Loading
Loading Please wait..
 
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