Debris

Fishing

Ecology

Biology

Animal science

Fishery

Veterinary medicine

Microplastics

Geography

Positive correlation

Environmental chemistry

Internal medicine

Environmental science

Medicine

Chemistry

Meteorology

Recreational fishing

Marine Pollution Bulletin

This study investigates the mean concentration and characteristics of macroplastics (>2.5 cm), mesoplastics (5 mm - 2.5 cm) and microplastics (<5 mm) on eight sandy beaches along the shoreline of Tuticorin, Tamil Nadu. Prevalence of plastic litters varies among the study sites depending on the intensity of fishing and other human activities. Mean concentrations of macroplastics (1.38 ± 78 to 6.16 ± 94 items/m2), mesoplastics (2 ± 0.8 to 17 ± 0.11 items/m2) and microplastics (25 ± 1.58 to 83 ± 49 items/m2) were estimated in respect of the polymers composing them namely PE, PP, PET, NY, PS and PVC, of which PE is the most predominant polymer. At Sites 1, 2, 3, 5 and 8 there is correlation between the intensity of fishing activity and the concentrations of macro- (p = 0.02) and microplastics (p = 0.03). Sites 4, 6 and 7 there is correlation established between the degree of recreational activity and the concentrations of meso- (p = 0.02) and microplastics (p = 0.01).

Macro-, meso- and microplastic debris in the beaches of Tuticorin district, Southeast coast of India