A Model of Ecosystem Stability and Development of Ekperiama, Niger Delta
Sabina Alatari Ngodigha, Koru Joe Alagoa, Pereowei Stephen Daworiye, Ipiteikumoh Bekewei
Asian Journal of Biology · pp. 1–8 · Published 4 Jan 2018
10.9734/AJOB/2017/37284Abstract
An Ecopath model was applied to analyse the stability and development of the aquatic ecosystem in Ekperiama in the Niger Delta. A total of 23 functional groups were used to determine the key features of the aquatic system. Indicators of ecosystem stability and development analysed were: Ominivory index 0.17, connectance index 0.23, path length 2.6, relatively low biomass to throughput ratio 0.0013, acendency 56%, Finn’s cycling index 3.68, low primary production to biomass ratio 23.1 and ratio of total primary production to total respiration 0.46. These indicators are consistent with a system where moderate (or tolerable) exploitation generally drives back development to earlier stages suggesting a system in its developmental stage.
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