Synthetic polymers: A global threat to aquatic benthic environments

Area of Science:

• Environmental Science
• Marine Biology
• Conservation Science

Background:

• Aquatic litter pollution presents a significant global challenge.
• Efficient and cost-effective data collection methods are needed.
• Citizen science initiatives offer potential solutions for data gathering.

Purpose of the Study:

• To analyze global aquatic benthic debris data collected by citizen scientists.
• To investigate the relationship between litter and spatial/socio-economic factors.
• To identify key sources and types of aquatic litter.

Main Methods:

• Utilized data from the Dive Against Debris® citizen science initiative.
• Analyzed worldwide aquatic benthic debris records.
• Correlated litter data with spatial and socio-economic variables.

Main Results:

• Plastic dominated aquatic litter (64% marine, 48% freshwater).
• Plastic fragments and fishing lines were prevalent seafloor items; takeaway containers in freshwater.
• Lower litter abundance observed in high-income regions (Europe, North America, Central Asia).
• Single-use plastics constituted approximately one-third of all debris.

Conclusions:

• Citizen science, after data cleaning, is valuable for understanding aquatic litter.
• Findings underscore the need to address the fishing industry and modern consumption patterns.
• Results can inform policies and raise consumer awareness regarding aquatic pollution.