期刊
MARINE POLLUTION BULLETIN
卷 104, 期 1-2, 页码 269-278出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2016.01.011
关键词
Floating marine debris; Density estimate; Distance sampling; Plastics; Portugal
资金
- Portuguese Wildlife Society [NAT/PT/000038]
- European Commission's Life Programme
- Project CetSenti [RECI/AAG-GLO/0470/2012 (FCOMP-01-0124-FEDER-027472)]
- FCT/MCTES (PIDDAC)
- FEDER-COMPETE (POFC)
- Portuguese Foundation for Science and Technology (FCT) [SFRH/BD/51416/2011, SFRH/BD/30240/2006]
- MARES [CENTRO-07-ST24-FEDER-002033]
- QREN
- Mais Centro-PORC
- EU/ERDF
- FCT through CESAM [UID/AMB/50017/2013]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/51416/2011] Funding Source: FCT
This study presents data on abundance and density of macro-floating marine debris (FMD), including their composition, spatial distribution and potential sources off continental Portugal. FMD were assessed by shipboard visual surveys covering +/- 252,833 km(2) until the 220 nm limit. The FMD average density was 2.98 items/km(2) and abundance amounted to 752,740 items. Unidentified plastics constitute the major bulk of FMD (density = 0.46 items/km(2); abundance = 117,390 items), followed by styrofoam, derelict or lost materials from fisheries, paper/cardboard and wood material. The North sector of the area presents higher FMD diversity and abundances, probably as a result of the high number of navigation corridors and fisheries operating in that sector. Most FMD originate from local sources, namely discharges from vessels and derelict material from fisheries. Considering the identifiable items, cables and fishing lines were the only fishing related items among the top ten FMD items in Portuguese offshore waters. (C) 2016 Elsevier Ltd. All rights reserved.
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