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Periphyton density influences organochlorine accumulation in rivers

Berglund, Olof LU (2003) In Limnology and Oceanography 48(6). p.2106-2116
Abstract
To investigate the influence of eutrophication on organochlorine dynamics in lotic systems, we related polychlorinated biphenyl (PCB) concentrations in brown trout (Salmo trutta) to the periphyton density and total phosphorus concentrations (Tot-P) in 10 Swedish rivers. Tot-P concentrations in the water ranged from 37 +/- 4 to 156 +/- 51 mug L-1. Periphyton density in the rivers during the experiment ranged from 6 to 199 mg carbon (C) m(-2) and was not related to the Tot-P concentration. The concentrations of PCB 52, PCB 66/95, PCB 90/101, PCB 132/153/105, PCB 160/138/158, PCB 180, and PCB 194 in brown trout were positively related to both periphyton density and Tot-P concentration, with periphyton density having the highest degree of... (More)
To investigate the influence of eutrophication on organochlorine dynamics in lotic systems, we related polychlorinated biphenyl (PCB) concentrations in brown trout (Salmo trutta) to the periphyton density and total phosphorus concentrations (Tot-P) in 10 Swedish rivers. Tot-P concentrations in the water ranged from 37 +/- 4 to 156 +/- 51 mug L-1. Periphyton density in the rivers during the experiment ranged from 6 to 199 mg carbon (C) m(-2) and was not related to the Tot-P concentration. The concentrations of PCB 52, PCB 66/95, PCB 90/101, PCB 132/153/105, PCB 160/138/158, PCB 180, and PCB 194 in brown trout were positively related to both periphyton density and Tot-P concentration, with periphyton density having the highest degree of correlation, 40-58%, compared to 6-44% for Tot-P. All seven PCB concentrations in brown trout were significantly, positively related to the areal mass (ng m(-2)) of the PCB in periphyton (r(2) = 0.69-0.86). Contrary to what has been found for lakes, eutrophication and organochlorine accumulations are positively related in rivers. Thus, an increase in primary production should increase the exposure of the local biota but lead to a decrease of the downstream transport of these pollutants to coastal areas and oceans. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Limnology and Oceanography
volume
48
issue
6
pages
2106 - 2116
publisher
ASLO
external identifiers
  • wos:000186772800004
  • scopus:0346121785
ISSN
1939-5590
language
English
LU publication?
yes
id
8d1398da-0b8a-422d-b948-177387d87e85 (old id 135902)
alternative location
http://aslo.org/lo/toc/vol_48/issue_6/2106.pdf
date added to LUP
2007-06-27 08:38:25
date last changed
2018-05-29 11:09:40
@article{8d1398da-0b8a-422d-b948-177387d87e85,
  abstract     = {To investigate the influence of eutrophication on organochlorine dynamics in lotic systems, we related polychlorinated biphenyl (PCB) concentrations in brown trout (Salmo trutta) to the periphyton density and total phosphorus concentrations (Tot-P) in 10 Swedish rivers. Tot-P concentrations in the water ranged from 37 +/- 4 to 156 +/- 51 mug L-1. Periphyton density in the rivers during the experiment ranged from 6 to 199 mg carbon (C) m(-2) and was not related to the Tot-P concentration. The concentrations of PCB 52, PCB 66/95, PCB 90/101, PCB 132/153/105, PCB 160/138/158, PCB 180, and PCB 194 in brown trout were positively related to both periphyton density and Tot-P concentration, with periphyton density having the highest degree of correlation, 40-58%, compared to 6-44% for Tot-P. All seven PCB concentrations in brown trout were significantly, positively related to the areal mass (ng m(-2)) of the PCB in periphyton (r(2) = 0.69-0.86). Contrary to what has been found for lakes, eutrophication and organochlorine accumulations are positively related in rivers. Thus, an increase in primary production should increase the exposure of the local biota but lead to a decrease of the downstream transport of these pollutants to coastal areas and oceans.},
  author       = {Berglund, Olof},
  issn         = {1939-5590},
  language     = {eng},
  number       = {6},
  pages        = {2106--2116},
  publisher    = {ASLO},
  series       = {Limnology and Oceanography},
  title        = {Periphyton density influences organochlorine accumulation in rivers},
  volume       = {48},
  year         = {2003},
}