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Biomagnification and polychlorinated biphenyl congener distribution in an aquatic predator-prey, host-parasite system

Persson, M E; Larsson, Per LU and Stenroth, Patrik LU (2007) In Environmental Toxicology and Chemistry 26(5). p.837-843
Abstract
Biomagnification and polychlorinated biphenyl (PCB) congener distribution was examined in a predator-prey, host-parasite system, in which Atlantic salmon (Salmo salar) preyed upon sprat (Sprattus sprattus). Eubothrium crassum was an intestinal parasite in salmon that also "preyed upon" sprat, because the parasites gained access to foodstuffs via the host (salmon) gut. Salmon contained significantly higher concentrations of total PCBs compared to both parasites and prey (sprat), but no difference in PCB concentration was found between sprat and E. crassum. Salmon biomagnified several PCB congeners from their diet (sprat), whereas parasites did not, despite the fact that both salmon and their parasites ingested the same prey. Differences in... (More)
Biomagnification and polychlorinated biphenyl (PCB) congener distribution was examined in a predator-prey, host-parasite system, in which Atlantic salmon (Salmo salar) preyed upon sprat (Sprattus sprattus). Eubothrium crassum was an intestinal parasite in salmon that also "preyed upon" sprat, because the parasites gained access to foodstuffs via the host (salmon) gut. Salmon contained significantly higher concentrations of total PCBs compared to both parasites and prey (sprat), but no difference in PCB concentration was found between sprat and E. crassum. Salmon biomagnified several PCB congeners from their diet (sprat), whereas parasites did not, despite the fact that both salmon and their parasites ingested the same prey. Differences in nutrient uptake mechanisms between the host and their parasites, in addition to the lack of a gastrointestinal tract in the cestode, may explain the lack of biomagnification in E. crassum. No difference was found in PCB congener distribution between parasites, salmon, and sprat. and none of the animal types showed a preference for accumulating more or less lipophilic congeners (congeners with a high or low octanol/water partition coefficient [K-ow]). Biomagnification factors for individual congeners in salmon did not increase with K-ow-rather, they were constant, as shown by a linear relationship for congener concentration in prey and predator. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
biomagnification, Atlantic salmon, cestode, intestinal parasite, polychlorinated biphenyl congener
in
Environmental Toxicology and Chemistry
volume
26
issue
5
pages
837 - 843
publisher
SETAC and Alliance Communications Group
external identifiers
  • wos:000245749500002
  • scopus:34249039264
ISSN
0730-7268
DOI
10.1897/06-305R.1
language
English
LU publication?
yes
id
35db506f-e07a-47e9-8665-195b0582e710 (old id 168628)
date added to LUP
2007-06-27 11:25:59
date last changed
2017-01-01 04:43:09
@article{35db506f-e07a-47e9-8665-195b0582e710,
  abstract     = {Biomagnification and polychlorinated biphenyl (PCB) congener distribution was examined in a predator-prey, host-parasite system, in which Atlantic salmon (Salmo salar) preyed upon sprat (Sprattus sprattus). Eubothrium crassum was an intestinal parasite in salmon that also "preyed upon" sprat, because the parasites gained access to foodstuffs via the host (salmon) gut. Salmon contained significantly higher concentrations of total PCBs compared to both parasites and prey (sprat), but no difference in PCB concentration was found between sprat and E. crassum. Salmon biomagnified several PCB congeners from their diet (sprat), whereas parasites did not, despite the fact that both salmon and their parasites ingested the same prey. Differences in nutrient uptake mechanisms between the host and their parasites, in addition to the lack of a gastrointestinal tract in the cestode, may explain the lack of biomagnification in E. crassum. No difference was found in PCB congener distribution between parasites, salmon, and sprat. and none of the animal types showed a preference for accumulating more or less lipophilic congeners (congeners with a high or low octanol/water partition coefficient [K-ow]). Biomagnification factors for individual congeners in salmon did not increase with K-ow-rather, they were constant, as shown by a linear relationship for congener concentration in prey and predator.},
  author       = {Persson, M E and Larsson, Per and Stenroth, Patrik},
  issn         = {0730-7268},
  keyword      = {biomagnification,Atlantic salmon,cestode,intestinal parasite,polychlorinated biphenyl congener},
  language     = {eng},
  number       = {5},
  pages        = {837--843},
  publisher    = {SETAC and Alliance Communications Group},
  series       = {Environmental Toxicology and Chemistry},
  title        = {Biomagnification and polychlorinated biphenyl congener distribution in an aquatic predator-prey, host-parasite system},
  url          = {http://dx.doi.org/10.1897/06-305R.1},
  volume       = {26},
  year         = {2007},
}