Sökning: id:"swepub:oai:DiVA.org:su-82144" >
Bottom trawling res...
Bottom trawling resuspends sediment and releases bioavailable contaminants in a polluted fjord
-
- Bradshaw, Clare (författare)
- Stockholms universitet,Systemekologiska institutionen
-
- Tjensvoll, Ingrid (författare)
- Stockholms universitet,Systemekologiska institutionen
-
- Sköld, Mattias (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för akvatiska resurser,Department of Aquatic Resources
-
visa fler...
-
Allan, I. J. (författare)
-
Molvaer, J. (författare)
-
Magnusson, J. (författare)
-
Naes, K. (författare)
-
- Nilsson, Hans (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för akvatiska resurser,Department of Aquatic Resources
-
visa färre...
-
(creator_code:org_t)
-
- Elsevier BV, 2012
- 2012
- Engelska.
-
Ingår i: Environmental Pollution. - : Elsevier BV. - 0269-7491 .- 1873-6424. ; 170, s. 232-241
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
https://res.slu.se/i...
-
visa färre...
Abstract
Ämnesord
Stäng
- Sediments are sinks for contaminants in the world's oceans. At the same time, commercial bottom trawling is estimated to affect around 15 million km(2) of the world's seafloor every year. However, few studies have investigated whether this disturbance remobilises sediment-associated contaminants and, if so, whether these are bioavailable to aquatic organisms. This field study in a trawled contaminated Norwegian fjord showed that a single 1.8 km long trawl pass created a 3-5 million m(3) sediment plume containing around 9 t contaminated sediment; ie. 200 g dw m(-2) trawled, equivalent to c. 10% of the annual gross sedimentation rate. Substantial amounts of PCDD/Fs and non-ortho PCBs were released from the sediments, likely causing a semi-permanent contaminated sediment suspension in the bottom waters. PCDD/Fs from the sediments were also taken up by mussels which, during one month, accumulated them to levels above the EU maximum advised concentration for human consumption.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
Nyckelord
- Sediment resuspension
- Bottom trawling
- Contaminant
- Bioavailability
- Blue mussel
- SPMD
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas