<abstract xmlns="http://www.w3.org/1999/xhtml"><p>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 <italic>Papyrocranus afer</italic>, 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); <italic>Ctenopoma kingselyae, Alestes imberi, Channa obscura, Oreochromis niloticus, Tilapia mariae, Tilapia zillii, Synodontis omais</italic>, and <italic>Papyrocranus afer. Chrysichthys auratus</italic> 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 <italic>Chrysichthys auratus</italic> with 0.99.</p></abstract>

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.

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

Federal University of Technology, Department of Fisheries, Owerri

Michael Okpara University of Agriculture, Department of Fisheries and Aquatic Resources Management, Umudike.

Transylvanian Review of Systematical and Ecological Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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...

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

Publié en ligne: 30 janv. 2017

Pages: 73 - 78

DOI: https://doi.org/10.1515/trser-2015-0065

Mots clés
Modelling ecosystem, condition Factor, morphometrics, climate

© 2015 Godwin Adaka et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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

Publié en ligne: 30 janv. 2017

Pages: 73 - 78

DOI: https://doi.org/10.1515/trser-2015-0065

Mots clésModelling ecosystem, condition Factor, morphometrics, climate

© 2015 Godwin Adaka et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
Modelling ecosystem, condition Factor, morphometrics, climate