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Reproductive status and lipid content as factors in PCB, DDT and HCH contamination of a pike population (Esox lucius L.)

Larsson, Per LU ; Okla, Lennart LU and Collvin, Lars (1993) In Environmental Toxicology and Chemistry 12(5). p.855-861
Abstract
Levels of persistent pollutants, including PCBs, SIGMADDT, and gamma-hexachlorocyclohexane, were examined in a pike population inhabiting a eutrophic lake in southern Scandinavia. For females, levels of persistent pollutants decreased linearly with age, weight, or length. This decline was ascribed to the seasonal elimination of the lipophilic pollutants in roe, which contained up to 10 times higher fat levels compared to muscle and over 10 times the amounts of pollutants. Male pike contained higher levels of pollutants than females, probably due to the lower elimination via gonadal products, as germinal tissue constitutes only 2% of the male total body weight and has a lower fat content than ovaries. Female germinal tissue can account for... (More)
Levels of persistent pollutants, including PCBs, SIGMADDT, and gamma-hexachlorocyclohexane, were examined in a pike population inhabiting a eutrophic lake in southern Scandinavia. For females, levels of persistent pollutants decreased linearly with age, weight, or length. This decline was ascribed to the seasonal elimination of the lipophilic pollutants in roe, which contained up to 10 times higher fat levels compared to muscle and over 10 times the amounts of pollutants. Male pike contained higher levels of pollutants than females, probably due to the lower elimination via gonadal products, as germinal tissue constitutes only 2% of the male total body weight and has a lower fat content than ovaries. Female germinal tissue can account for as much as 15% of the body weight. No major fat deposits other than those in germinal tissue were found in pike, which also had a low muscle fat content, suggesting that the importance of roe elimination in removing pollutants may be greater in pike than in salmonids. Uptake of persistent pollutants can vary greatly within a species, owing to differences in sex, age, and so forth, as well as between species, owing to differences in fat deposition strategies. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Environmental Toxicology and Chemistry
volume
12
issue
5
pages
855 - 861
publisher
SETAC and Alliance Communications Group
ISSN
0730-7268
DOI
10.1897/1552-8618(1993)12[855:RSALCA]2.0.CO;2
language
English
LU publication?
yes
id
6cf8adbf-c9b6-4a1a-bc6d-555bb7c909d4 (old id 8163958)
date added to LUP
2015-11-09 11:37:31
date last changed
2016-04-15 19:41:13
@article{6cf8adbf-c9b6-4a1a-bc6d-555bb7c909d4,
  abstract     = {Levels of persistent pollutants, including PCBs, SIGMADDT, and gamma-hexachlorocyclohexane, were examined in a pike population inhabiting a eutrophic lake in southern Scandinavia. For females, levels of persistent pollutants decreased linearly with age, weight, or length. This decline was ascribed to the seasonal elimination of the lipophilic pollutants in roe, which contained up to 10 times higher fat levels compared to muscle and over 10 times the amounts of pollutants. Male pike contained higher levels of pollutants than females, probably due to the lower elimination via gonadal products, as germinal tissue constitutes only 2% of the male total body weight and has a lower fat content than ovaries. Female germinal tissue can account for as much as 15% of the body weight. No major fat deposits other than those in germinal tissue were found in pike, which also had a low muscle fat content, suggesting that the importance of roe elimination in removing pollutants may be greater in pike than in salmonids. Uptake of persistent pollutants can vary greatly within a species, owing to differences in sex, age, and so forth, as well as between species, owing to differences in fat deposition strategies.},
  author       = {Larsson, Per and Okla, Lennart and Collvin, Lars},
  issn         = {0730-7268},
  language     = {eng},
  number       = {5},
  pages        = {855--861},
  publisher    = {SETAC and Alliance Communications Group},
  series       = {Environmental Toxicology and Chemistry},
  title        = {Reproductive status and lipid content as factors in PCB, DDT and HCH contamination of a pike population (Esox lucius L.)},
  url          = {http://dx.doi.org/10.1897/1552-8618(1993)12[855:RSALCA]2.0.CO;2},
  volume       = {12},
  year         = {1993},
}