**Author details**

Olufemi Julius Olapade Department of Aquaculture and Fisheries Management, School of Natural Resources Management, Njala University, Sierra Leone

\*Address all correspondence to: fem66@hotmail.com; ojulius@njala.edu.sl

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
