Bioecology of Sediment-Polychaete in Estuarine Subtidal Habitat on Bonny River, Nigeria
Journal Title: Annual Research & Review in Biology - Year 2015, Vol 7, Issue 3
Abstract
Midchannel subtidal Polychaete Fauna were collected at the Bonny-estuary and analysed for their composition and abundance in relation to biotic and abiotic factors that are associated with life history strategies through a twelve-month cycle. The diversity index of Shannon-Weiner (0.637 to 2.252) showed that monthly diversity ranges from low to moderate, while the diversity index of Margalef (0.558 to 2.667) showed a moderate to high species diversity. Two Polychaete associations were identified -the generalists made up of 12 species with frequent occurrences and the specialists made up of 13 species with single month occurrences. The species turnover among the specialists with single month occurrences seems to be governed by environmental processes. In contrast, the generalists with the ability to recur throughout the sampling period seem to be less restricted by the prevailing environmental conditions. A positive correlation was observed between Polychaete abundance and silt/clay (p>0.05 r = 0.5429) and organic matter (p>0.05 r = 0.8857), which shows that both organic matter and silt/clay were important in promoting the abundance and diversity of the Polychaete fauna in the study area. The study provides evidence that variation in occurrence of the Polychaetes operates on a range of scales with differing responses to abiotic variables. This should be considered in environmental impact assessments and monitoring studies to fully account for observed distribution.
Authors and Affiliations
John Onwuteaka
Keywords
Related Articles
- EP ID EP353451
- DOI 10.9734/ARRB/2015/18321
- Views 115
- Downloads 0
Increase in Citrate and KCl Consumption during Morphine Withdrawal Period is Associated with Reduced Levels of Zinc and Brain-derived Neurotrophic Factor, and Poor Neurogenesis in Male Isolated Rats
Introduction: Sustained remission from substance abuse is often difficult to achieve. However, there are certain factors that may predict the remission from substance dependence during drug withdrawal period. The aim of...
Effect of Acute Doses of Magnesium Hydroxide Nanoparticles on Some Biochemical Parameters of Wistar Rats
Aim: This study was designed to assess the toxic effect of magnesium hydroxide nanoparticles on some biochemical parameters of Wistar rats. Place and Duration of Study: Department of Biochemistry, Ekiti State University...
Effectiveness of the Forest Fire Management Frame in Togo
Aims: The aim of this study is to analyze the framework of dialogue and management of fires for a better involvement and sense of ownership of the actors in general and the local communities in particular. Specifically,...
Improve Hygienic Quality of Egyptian Karish Cheese Employing Isolated Antagonistic Lactobacilli Strains
Good health is one of the sustainable development goals. This study aims to improve hygienic quality of Karish Egyptian traditional cheese, using two wild antagonistic Lactobacilli isolates used as individual starter cul...
Molecular Characterization of Penicillium Isolates Using Rapd Technique
Molecular analyses were performed on 14 isolates of Penicillium species. The Penicillium isolates examined were collected from different localities and habitats of Jeddah, Saudi Arabia and maintained on Czapek Dox's and...