Length-Weight Relationship of Some Fish Species in a Tropical Rainforest River in South-East Nigeria

The Length-Weight relationship of some fish species from Oramiri-Ukwa River, was studied from January to December, 2014. The slope (b) values obtained in the nine species ranged from 1.830 to 5.670 with most of the fishes indicating a negative allometric growth pattern except for Papyrocranus afer,...

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Main Authors: Adaka Godwin, Ndukwe Eunice, Nlewadim Anthony
Format: Article
Language:English
Published: Sciendo 2015-12-01
Series:Transylvanian Review of Systematical and Ecological Research
Subjects:
Online Access:https://doi.org/10.1515/trser-2015-0065
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spelling doaj-eeee89986a7e4a688c74d81ea43506752021-09-05T20:51:33ZengSciendoTransylvanian Review of Systematical and Ecological Research2344-32192015-12-01172737810.1515/trser-2015-0065trser-2015-0065Length-Weight Relationship of Some Fish Species in a Tropical Rainforest River in South-East NigeriaAdaka Godwin0Ndukwe Eunice1Nlewadim Anthony2 Federal University of Technology, Department of Fisheries, Owerri Michael Okpara University of Agriculture, Department of Fisheries and Aquatic Resources Management, Umudike. Michael Okpara University of Agriculture, Department of Fisheries and Aquatic Resources Management, Umudike.The Length-Weight relationship of some fish species from Oramiri-Ukwa River, was studied from January to December, 2014. The slope (b) values obtained in the nine species ranged from 1.830 to 5.670 with most of the fishes indicating a negative allometric growth pattern except for Papyrocranus afer, with b value of 3.04, thus showing a positive isometric growth pattern. The following fish species showed a high degree of positive correlation at (P > 0.05); Ctenopoma kingselyae, Alestes imberi, Channa obscura, Oreochromis niloticus, Tilapia mariae, Tilapia zillii, Synodontis omais, and Papyrocranus afer. Chrysichthys auratus did not show this positive correlation. The condition factor (K) of the fish species ranged from 0.99 to 4.54, indicating that most of the fish were in good condition except for Chrysichthys auratus with 0.99.https://doi.org/10.1515/trser-2015-0065modelling ecosystemcondition factormorphometricsclimate
collection DOAJ
language English
format Article
sources DOAJ
author Adaka Godwin
Ndukwe Eunice
Nlewadim Anthony
spellingShingle Adaka Godwin
Ndukwe Eunice
Nlewadim Anthony
Length-Weight Relationship of Some Fish Species in a Tropical Rainforest River in South-East Nigeria
Transylvanian Review of Systematical and Ecological Research
modelling ecosystem
condition factor
morphometrics
climate
author_facet Adaka Godwin
Ndukwe Eunice
Nlewadim Anthony
author_sort Adaka Godwin
title Length-Weight Relationship of Some Fish Species in a Tropical Rainforest River in South-East Nigeria
title_short Length-Weight Relationship of Some Fish Species in a Tropical Rainforest River in South-East Nigeria
title_full Length-Weight Relationship of Some Fish Species in a Tropical Rainforest River in South-East Nigeria
title_fullStr Length-Weight Relationship of Some Fish Species in a Tropical Rainforest River in South-East Nigeria
title_full_unstemmed Length-Weight Relationship of Some Fish Species in a Tropical Rainforest River in South-East Nigeria
title_sort length-weight relationship of some fish species in a tropical rainforest river in south-east nigeria
publisher Sciendo
series Transylvanian Review of Systematical and Ecological Research
issn 2344-3219
publishDate 2015-12-01
description The Length-Weight relationship of some fish species from Oramiri-Ukwa River, was studied from January to December, 2014. The slope (b) values obtained in the nine species ranged from 1.830 to 5.670 with most of the fishes indicating a negative allometric growth pattern except for Papyrocranus afer, with b value of 3.04, thus showing a positive isometric growth pattern. The following fish species showed a high degree of positive correlation at (P > 0.05); Ctenopoma kingselyae, Alestes imberi, Channa obscura, Oreochromis niloticus, Tilapia mariae, Tilapia zillii, Synodontis omais, and Papyrocranus afer. Chrysichthys auratus did not show this positive correlation. The condition factor (K) of the fish species ranged from 0.99 to 4.54, indicating that most of the fish were in good condition except for Chrysichthys auratus with 0.99.
topic modelling ecosystem
condition factor
morphometrics
climate
url https://doi.org/10.1515/trser-2015-0065
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