Reproductive status and lipid content as factors in PCB, DDT and HCH contamination of a pike population (Esox lucius L.)
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8163958
- author
- Larsson, Per LU ; Okla, Lennart LU and Collvin, Lars
- organization
- publishing date
- 1993
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Environmental Toxicology and Chemistry
- volume
- 12
- issue
- 5
- pages
- 855 - 861
- publisher
- John Wiley & Sons Inc.
- 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
- 2016-04-01 12:05:07
- date last changed
- 2021-09-27 04:12:37
@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 = {{John Wiley & Sons Inc.}}, 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}}, doi = {{10.1897/1552-8618(1993)12[855:RSALCA]2.0.CO;2}}, volume = {{12}}, year = {{1993}}, }