alexa Seasonal Variation in the Distribution and Fish Species Diversity of a Tropical Lagoon in South-West Nigeria
Agri and Aquaculture

Agri and Aquaculture

Fisheries and Aquaculture Journal

Author(s): Soyinka Olufemi Olukolajo

Abstract Share this page

Twenty five fish species representing 16 families were recorded in the Ologe Lagoon, South-West Nigeria. Adult stages of 12 of them were freshwater (48%), 4 were estuarine (16%) and 9 were near-shore marine species (36%). The slight seasonal variation in the catch composition of the fish fauna of the lagoon was attributed to the slight seasonal fluctuation in salinity marked with higher rainfall volumes in the rainy season than in the dry. Availability of food organisms was also noted for the seasonal distribution of some of the fish species. Temperature and pH varied slightly, while DO was higher in the dry season but lower in the rainy season. Distance from salt water influence and much river influx with the associated reduced salinity appear to be the major meteorological forcing operating in the lagoon. The lagoon is very low brackish water. The highest species richness was observed in September with 13 species, while the lowest with least abundance was observed in August (when there was a break in rains) with 7 species. The most abundant species during their occurrence were T. mariae (10.1%), C. senegalensis (9.84%) and M. electricus (7.51%). Species richness and total abundance were found to increase slightly during the rainy season than the dry season. Availability of much juvenile forms indicated that the lagoon forms a good nursery ground for many fish species.

  • To read the full article Visit
  • Open Access
This article was published in Science alert and referenced in Fisheries and Aquaculture Journal

Relevant Expert PPTs

Relevant Speaker PPTs

Relevant Topics

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

Agri & Aquaculture Journals

Dr. Krish

1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

1-702-714-7001Extn: 9037

Business & Management Journals


1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

1-702-714-7001Extn: 9042

General Science

Andrea Jason

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

1-702-714-7001Extn: 9042

© 2008- 2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version