Research Article
Comparative study of Condition factor, Stomach Analysis and Some Aspects of Reproductive Biology of Two Land Crabs: Cardiosoma armatum (Herklots, 1851) and Cardiosoma guanhumi (Latreille, 1825) from a Mangrove Swamp Ecosystem, Lagos - Nigeria
E Isa Olalekan1* and Aderonke Omolara Lawal-Are21Environmental and Resource Management, Brandenburg University of Technology, Cottbus, Germany
2Department of Marine Sciences, University of Lagos, Lagos, Nigeria
- *Corresponding Author:
- Isa Olalekan
Environmental and Resource Management
Brandenburg University of Technology, Cottbus, Germany
Tel: +49 (0) 355 69-0
E-mail: isaelegbede@gmail.com
Received date: September 04, 2013; Accepted date: December 23, 2013; Published date: December 30, 2013
Citation: Olalekan EI, Lawal-Are AO (2013) Comparative study of Condition factor, Stomach Analysis and Some Aspects of Reproductive Biology of Two Land Crabs: Cardiosoma armatum (Herklots, 1851) and Cardiosoma guanhumi (Latreille, 1825) from a Mangrove Swamp Ecosystem, Lagos – Nigeria. J Marine Sci Res Dev 4:143. doi: 10.4172/2155-9910.1000143
Copyright: © 2013 Olalekan EI, 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.
Abstract
A total samples of 858 of Cardisoma armatum and Cardisoma guanhumi) collected from the Lagos Lagoon mangrove area of the University of Lagos were studied for their frequency, distribution, growth and sex ratio and a comparative analysis was done on both crabs. Investigation into their length-weight relationships, growth pattern, condition factor, food and feeding habits were carried out. The calculated Chi-square ( 2Ù脙聜芒聙聻ا ) test showed that male crabs of Cardisoma armatum and Cardisoma guanhumi were significantly (p<0.05) more abundant than the female crabs. The Condition factor K values for the Cardiosoma armatum and Cardiosoma guanhumi ranged from 3.3 to 30.7 and 3.1 to 28.6, respectively. This research study indicates almost similar biological features for both species.
