Dar es Salaam is a growing city which is accompanied with destruction of biological resources. Many wildlife species are purged out and some are threatened to extinction if no alternative means for conserving such species is implemented. The quarry site provides such remedy through different land scape including ponds provided during the venture. Ponds are known to occur in the Wazo hill, however no study have been done to determine their size and their importance in biodiversity conservation and provision of ecosystem services. Therefore this study aimed at filling this knowledge gap.
The major objective of the study is to determine the importance of created ponds in quarry site for aquatic invertebrates and human livelihood. And specifically it aims to determine the diversity of aquatic invertebrate in the Wazo hill quarry ponds, to determine the ecosystem services which can be provided by the ponds and to map the pond in Wazo Hill quarry.
All the ponds in the quarried area will be surveyed and recorded. The GPS co-ordinate finally will be mapped using Q-GIS software. Systematic randomly will be used to select at least 5 ponds and sampling invertebrates using scoop nets. Sampling will be done in wet and dry season. Semi-structured interview using Likert Scoring to people selected randomly in Dar on what ecosystem can be derived from such ponds will be done. Intensive interviews to key informants will be done and analyzed through descriptive statistics. Shannon Weiner index and Margalef index will be used to determine the diversity of invertebrates in different ponds. The variation in abundance will be tested using Kruskal Wallis test for none parametric data and ANOVA for parametric ones.
Through this study, it is expected that the ponds will be determine and mapped. In addition to that the invertebrates and ecosystem services of the ponds will be exposed. This will help the management of Wazo Hill to design the conservation strategies of the area considering the aquatic invertebrates available as essential component of the ecosystem. Additionally economic generating activities can be planned for the ecosystem services provided to the industry and the local communities around. Employment opportunities will be increased to local communities around the quarry sites which will enhance the relations between the management and the local communities around.