Survey of Subtidal Anthropogenic Marine Debris (AMD) in Mayo Bay, Mati City, Davao Oriental, Philippines
Neil Angelo S. Abreo1,2,4*, Edison D. Macusi2,3,5, and Lea A. Jimenez2,3
1Senior High School Department, Malayan Colleges Mindanao, Davao City, Philippines
2Regional Integrated Coastal Resource Management Center (RIC–XI), Davao Oriental State College of
Science and Technology, Mati City, Davao Oriental, Philippines
3Institute of Agriculture and Life Sciences, Davao Oriental State College of Science
and Technology (DOSCST), Guang-Guang, Barangay Dahican, Mati City, Davao Oriental, Philippines
4Institute of Aquatic and Applied Sciences, Davao del Norte State College,
Panabo City, Davao del Norte, Philippines
5Aquaculture and Fisheries Group, Wageningen University & Research
P.O. Box 338, 6700 AH, Wageningen, The Netherlands
*Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
ABSTRACT
Anthropogenic marine debris (AMD) is considered a global threat to the marine environment. Mortality from ingestion or entanglement in AMD is widely reported from marine animals and has harmful impacts on seagrass and corals. The distribution of AMD plays a vital role in its interaction with marine organisms. However, there is little information on AMD distribution in the Philippines – a country ranked as the third most significant contributor of AMD in the ocean. During the monitoring of dugong (Dugong dugon) feeding trails in Mati City, Davao Oriental, Philippines, AMD was recorded at one of the sites surveyed. Plastic debris was the most dominant in number and weight of total AMD collected. Here we present the first quantification, characterization, and distribution of AMD in a shallow subtidal area in Mati City, Philippines. More studies are needed to assess the impacts of AMD on the marine environment and organisms, particularly within the Philippines.
INTRODUCTION
The threat of anthropogenic marine debris (AMD) to marine biodiversity is a global problem. Plastic, the most dominant type of AMD, reportedly affects marine organisms at different trophic levels and coastal habitats (Kühn et al. 2015) .
The full extent of AMD is still unknown, possibly because of the “cryptic” nature of the problem (Williams et al. 2011). Impacts of AMD may only become evident when data from stranding events and necropsies reveal their presence. Reports on AMD ingestion rely on post-mortem examinations (e.g., Abreo et al. 2016) and not all strandings are examined. . . . . read more
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