Abstract
The problem of the marine litter accumulation and their consequence extended and face around the whole world with no easy solution in the coming years. The situation is now going more worst that the plastic which contribute 80% of the total solid waste in all the beaches provides ideal environment for the opportunistic microorganism to grow and established a novel means of spatial and temporal transport for microorganisms diagonally coastal areas. In the present paper baseline study of abundance, composition and nature of the solid waste litter on the beaches of Karachi, Pakistan were investigated. During the study plastic litter were qualified as the highest debris among all the beaches. The abundance of debris by weight was higher in Clifton followed by sandspit and Ghizri creek respectively. Thermacol / Styrofoam recoded as the second largest contributor of marine debris. The major contributing factor of debris abundance are beach visitors i.e tourism and recreation activities and land based sources including waste from creeks along debris provide a major inputs of pollution in beaches.
Highlights
Marine pollution is one of the most priority issues facing by the whole world
Among the solid waste Composition, this study focused on classification of three types of plastic including large microplastic, (1 to < 6 mm), mesoplastic ( 6 to < 25 mm) and macro plastic ( ≥25 mm) respectively
Contribution of human activity mostly beach visitors and recreation activity is a primary source of debris on the coastal line.This research work presents the baseline information on coastal beaches debris at Karachi, Pakistan
Summary
Marine pollution is one of the most priority issues facing by the whole world. It damages the ecosystem and habitat of many marine organism of coastal environment. To rectify this problem, number of monitoring programs have been initiated[1,2]. Solid waste generated form anthropogenic activates along with coast line have a unique characteristic higher generation densities. The waste originated from different sources have tendency to transport through current, wind and wave action reported waste transfer from far-flung continents and remote island through tidal and wave movement
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