Considerations on the effects of tidal regimes in the movement of floating litter in an estuarine environment: Case study of the estuarine system of Santos-Sao Vicente, Brazil

MARINE POLLUTION BULLETIN

卷:110

Article

Fernandino, Gerson¹  Elliff, Carla Isobel¹  Frutuoso, Gabriela Amado²  Nascimento Malaquias da Silva, Eric Vinicius²  Gama, Guilherme Santiago²  de Oliveira Sousa, Joao Henrique²  Silva, Iracema Reimao¹ 

[1] Univ Fed Bahia, Postgrad Program Geol, NEHMA, Inst Geociencias, Salvador, BA, Brazil

[2] Univ Fed Bahia, Inst Geociencias, Geog Undergrad, Salvador, BA, Brazil

关键词: Floating litter;    Estuary;    Port of Santos;    Visual census;   

DOI  :  10.1016/j.marpolbul.2016.05.080

来源: Elsevier

【 摘 要 】

Floating litter in the estuarine system of Santos-Sao Vicente is common and is part of day-to-day activities of various users of the area. The objective of the present study was to carry out a quali-quantitative evaluation of the occurrence of floating litter, to infer their sources, and to identify environmental factors that are likely to control occurrence and distribution, with particular emphasis on the effects of tidal regimes. Six sampling stations were selected along the aforementioned estuary and visited monthly between July 2010 and January 2012. Floating litter was counted from a fixed sampling station. Plastics prevailed (89.64%) and their main source was domestic activities (55.41%). More litter was found during ebb spring tides, with higher concentrations obeying confluence patterns of the estuary's channels. Results indicated that occurrence can be attributed to the deficiency in basic sewage system in the area and the deliberate disposal into the estuary by the local population. (C) 2016 Elsevier Ltd. All rights reserved.

【 授权许可】

Free