Subtidal benthic marine litter off the coast of Rio de Janeiro, Brazil

被引:1
作者
de Araujo, Fabio Vieira [1 ]
Videla, Eduardo da Silva [2 ]
Masi, Bruno Pereira [3 ]
da Silva, Andre Luiz Carvalho [4 ]
机构
[1] Univ Estado Rio De Janeiro, Fac Formagao Prof, Dept Ciencias, Rua Dr Francisco Portela 1470, BR-24435005 Sao Gongalo, RJ, Brazil
[2] Univ Fed Fluminense, Programa Posgrad Biol Marinha & Ambientes Costeiro, Inst Biol, Outeiro Sao Joao Batista S-N, BR-24020971 Niteroi, RJ, Brazil
[3] Inst Estudos Mar Almirante Paulo Moreira, Dept Biotecnol Marinha, Rua Kioto 253, BR-28930000 Arraial Do Cabo, RJ, Brazil
[4] Univ Estado Rio De Janeiro, Dept Geog, Fac Formacao Prof, Rua Dr Francisco Portela 1470, BR-24435005 Sao Goncalo, RJ, Brazil
来源
OCEAN AND COASTAL RESEARCH | 2024年 / 72卷
关键词
Marine pollution; Benthic environments; Subtidal environment; Solid waste; Coastal environment; SEA-FLOOR; MEDITERRANEAN SEA; SPATIAL-DISTRIBUTION; SUBMARINE CANYONS; GUANABARA BAY; DEBRIS; BEACHES; SEDIMENTS; EXAMPLES; NORTHERN;
D O I
10.1590/2675-2824072.23004
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Several studies have reported on the presence of litter on beaches and in the oceans, but this represents the smallest part of the litter that ends up in the sea. Little is known about the litter that settles on the ocean floor, especially near coastal regions. Thus, this study quantified, classified and determined possible sources of subtidal benthic marine litter input off the coast of Rio de Janeiro, Brazil. Different sites were selected in Guanabara Bay, an area with the greatest industrial and population concentration in the state of Rio de Janeiro, and on the coasts of Costa do Sol and Costa Verde, where tourism represents the main economic activity. Material was collected by scuba diving at depths of between 5 and 15 meters at 31 sites distributed among the study areas. A total of 1,209 items was found, with Guanabara Bay having the highest average concentration (92.40 items/km2), followed by Costa do Sol and Costa Verde (14.15 items/km2 and 9.91 items/km2, respectively). Plastic materials are the most representative solid waste (55.08%), followed by metals (14.97%) and fishing gear (12.48%). Results indicated that local activities affected the composition of the marine litter on Costa do Sol and Costa Verde, whereas in Guanabara Bay, anthropogenic material carried by rivers influenced the marine litter composition at certain locations in addition to local activities. Environmental education actions associated with tourism and fishing activities and better waste management are necessary to minimize the presence of litter in subtidal benthic environments.
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页数:19
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