Floating marine debris influx in the intertidal zone of offshore islands in Bangladesh: A case study of Manpura Island

Marine Debris is all-pervading in the world's oceans. In this research, for the first time, Floating Marine Debris (FMD) accumulation in the intertidal zone of Manprua island, an offshore island of Bangladesh, is reported. The assessment has been done by integrating both physical investigations...

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Bibliographic Details
Published in:Marine pollution bulletin 2023-12, Vol.197, p.115723-115723, Article 115723
Main Authors: Uddin, Md. Mahin, Islam, M. Shahidul
Format: Article
Language:English
Subjects:
Bangladesh
Environmental Monitoring
Floating marine debris (FMD)
Intertidal zone
Islands
Manpura island
Marine pollution
Physical investigation
Plastics
Waste Products - analysis
Water Pollutants - analysis
Water Pollution - analysis
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Summary:Marine Debris is all-pervading in the world's oceans. In this research, for the first time, Floating Marine Debris (FMD) accumulation in the intertidal zone of Manprua island, an offshore island of Bangladesh, is reported. The assessment has been done by integrating both physical investigations and questionnaire survey. The Study shows high debris density on the windward and river-facing sides of the island. The density of debris items in this area varies from 550,000 to 60,000 items per km2 (8.5 to 0.08 g/m2) for transect samples during low tide and 350,000 to 60,000 items per km2 (5.76 to 1.20 g/m2) for net samples during high tide. However, the most damaging debris items are uprooted trees and water hyacinths because they hinder fishing activities. This study provides baseline information on FMD in the Meghna Estuary, which can be used as a reference for sustainable monitoring and management of marine pollution. •First study of Floating Marine Debris in a Meghna Estuary island•Transects, hand-pulled net and questionnaire were used for the investigation.•The density varied from 550,000 to 60,000 items/km2.•Most abundant types of debris were plastics and styrofoams (84 %).•Uprooted trees and water hyacinth influx cause the most direct economic loss.
ISSN:0025-326X
1879-3363
DOI:10.1016/j.marpolbul.2023.115723