Title |
Anthropogenic influence on sediment transport in the Whittard Canyon, NE Atlantic
|
---|---|
Published in |
Marine Pollution Bulletin, November 2015
|
DOI | 10.1016/j.marpolbul.2015.10.067 |
Pubmed ID | |
Authors |
Annette M. Wilson, Kostas Kiriakoulakis, Robin Raine, Hans D. Gerritsen, Sabena Blackbird, A. Louise Allcock, Martin White |
Abstract |
Unusual peaks in turbidity were detected in two branches of the Whittard Canyon in June 2013. Enhanced nepheloid layers (ENLs) were defined as layers with concentrations of suspended particulate matter exceeding those of nepheloid layers typically observed in a given region. Here, ENLs had peaks in turbidity and elevated suspended particulate matter concentrations exceeding ~1mgL(-1) with the largest ENLs measuring between ~2-8mgL(-1). The ENLs measured ~100-260m in vertical height and were detected in water depths of between 640 and 2880m. Vessel Monitoring System data showed that high spatial and temporal activity of potential bottom trawling vessels coincided with the occurrence of the ENLs. Molar C/N ratios of the suspended organic material from the ENLs showed a high degree of degradation. Regular occurrences of such events are likely to have implications for increased sediment fluxes, burial of organic carbon and alteration of benthic and canyon ecosystems. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Ireland | 4 | 57% |
Chile | 1 | 14% |
Unknown | 2 | 29% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Scientists | 4 | 57% |
Members of the public | 3 | 43% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 2 | 4% |
Unknown | 44 | 96% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 10 | 22% |
Student > Ph. D. Student | 9 | 20% |
Student > Master | 7 | 15% |
Student > Bachelor | 5 | 11% |
Student > Postgraduate | 2 | 4% |
Other | 3 | 7% |
Unknown | 10 | 22% |
Readers by discipline | Count | As % |
---|---|---|
Environmental Science | 12 | 26% |
Earth and Planetary Sciences | 9 | 20% |
Agricultural and Biological Sciences | 9 | 20% |
Biochemistry, Genetics and Molecular Biology | 2 | 4% |
Unspecified | 1 | 2% |
Other | 2 | 4% |
Unknown | 11 | 24% |