نتایج جستجو برای: Beached marine debris (BMD)
تعداد نتایج: 113596 فیلتر نتایج به سال:
compared with usa, uk, brazil, indonesia, australia, etc., marine debris research in china has received less attention and few studies have attempted to quantify the abundance and mass of marine debris. in this paper, the abundance, composition and source of beached marine debris, and debris collection system and frequency as well as dustbins’ conditionwere investigated in duodaohai, wanpingkou...
Compared with USA, UK, Brazil, Indonesia, Australia, etc., marine debris research in China has received less attention and few studies have attempted to quantify the abundance and mass of marine debris. In this paper, the abundance, composition and source of beached marine debris, and debris collection system and frequency as well as dustbins’ conditionwere investigated in Duodaohai, Wanpingkou...
Baseline measurements were made of the amount and weight of beached marine debris on Sand Island, Midway Atoll, June 2008-July 2010. On 23 surveys, 32,696 total debris objects (identifiable items and pieces) were collected; total weight was 740.4 kg. Seventy-two percent of the total was pieces; 91% of the pieces were made of plastic materials. Pieces were composed primarily of polyethylene and ...
Northern fulmars as biological monitors of trends of plastic pollution in the eastern North Pacific.
Marine plastic debris is a global issue, which highlights the need for internationally standardized methods of monitoring plastic pollution. The stomach contents of beached northern fulmar (Fulmarus glacialis) have proven a cost-effective biomonitor in Europe. However, recent information on northern fulmar plastic ingestion is lacking in the North Pacific. We quantified the stomach contents of ...
Plastic production pellets collected from beaches of south west England contain variable concentrations of trace metals (Cr, Co, Ni, Cu, Zn, Cd and Pb) that, in some cases, exceed concentrations reported for local estuarine sediments. The rates and mechanisms by which metals associate with virgin and beached polyethylene pellets were studied by adding a cocktail of 5 μg L(-1) of trace metals to...
Abstract Global coastlines potentially contain significant amounts of plastic debris, with harmful implications for marine and coastal ecosystems, fisheries tourism. However, the global amount, distribution origin debris on beaches in waters is currently unknown. Here we analyze beaching resuspension scenarios using a Lagrangian particle transport model. Throughout first 5 years after entering ...
Marine plastic pollution is a global issue, from the shores to open ocean. Understanding pathway and fate of debris fundamental manage reduce pollution. Here, floating discharged along coasts studied by comparing two sources, one based on river discharges other mismanaged waste coastal populations, using Lagrangian numerical analysis in ocean circulation model. About 1/3 particles end up 2/3 be...
Terrestrial sources of marine debris on beaches are substantial, increasing, and primarily a result mismanaged waste land. The scale, source, composition beached in New Zealand was determined by surveying 41 beaches, with triplicate belt transects, across the North South Islands. Results demonstrated significant spatial variance, Island showing significantly higher mean density than more popula...
In the years 1996 and 1997, the pattern of deposition of beached coral heads and pieces onto the shore of Telecom Bay within the Cape d’Aguilar Marine Reserve, Hong Kong suggested that typhoons were a signi¢cant natural perturbation. In August 1997, 808 pieces weighing 60,930 g were washed up following passage of TyphoonVictor. 1997 was also Hong Kong’s wettest year on record and a survey of th...
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