An Analysis of Variation of Insecticide Residues in Landlocked Atlantic Salmon ( Salmo salar )
High variation in yearly samples of insecticide residues found in landlocked salmon from Sebago Lake, Maine, has necessitated an evaluation of sampling methods and an investigation of causes of variation. A sample of 59 male salmon, composed of ages III+, IV+, and V+, and representing fish in poor a...
Published in: | Journal of the Fisheries Research Board of Canada |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1970
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/f70-001 http://www.nrcresearchpress.com/doi/pdf/10.1139/f70-001 |
id |
crcansciencepubl:10.1139/f70-001 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/f70-001 2023-12-17T10:27:25+01:00 An Analysis of Variation of Insecticide Residues in Landlocked Atlantic Salmon ( Salmo salar ) Anderson, Richard B. Fenderson, Owen C. 1970 http://dx.doi.org/10.1139/f70-001 http://www.nrcresearchpress.com/doi/pdf/10.1139/f70-001 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Journal of the Fisheries Research Board of Canada volume 27, issue 1, page 1-11 ISSN 0015-296X General Medicine journal-article 1970 crcansciencepubl https://doi.org/10.1139/f70-001 2023-11-19T13:39:14Z High variation in yearly samples of insecticide residues found in landlocked salmon from Sebago Lake, Maine, has necessitated an evaluation of sampling methods and an investigation of causes of variation. A sample of 59 male salmon, composed of ages III+, IV+, and V+, and representing fish in poor and good body condition was collected from a spawning run in the fall of 1967 and analyzed for DDT, DDD, DDE, dieldrin, and fat content. Levels of insecticide residues were found to be highly dependent on age and fat content. DDD and DDE increased with age and fat content, and dieldrin increased with fat content. Age and fat content were interdependent in their effects on DDT levels. DDT was significantly higher in high-fat than in low-fat fish at ages III+ and IV+ but not at age V+, showing a decrease with age among fish with high fat content and remaining constant with age among fish with low fat content. It is recommended that completely random selection of fish for insecticide analyses be abandoned in favor of stratification by sex, age, and fatness. Some of the possible causes of variation in insecticide content of salmon are discussed. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing (via Crossref) Journal of the Fisheries Research Board of Canada 27 1 1 11 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Medicine |
spellingShingle |
General Medicine Anderson, Richard B. Fenderson, Owen C. An Analysis of Variation of Insecticide Residues in Landlocked Atlantic Salmon ( Salmo salar ) |
topic_facet |
General Medicine |
description |
High variation in yearly samples of insecticide residues found in landlocked salmon from Sebago Lake, Maine, has necessitated an evaluation of sampling methods and an investigation of causes of variation. A sample of 59 male salmon, composed of ages III+, IV+, and V+, and representing fish in poor and good body condition was collected from a spawning run in the fall of 1967 and analyzed for DDT, DDD, DDE, dieldrin, and fat content. Levels of insecticide residues were found to be highly dependent on age and fat content. DDD and DDE increased with age and fat content, and dieldrin increased with fat content. Age and fat content were interdependent in their effects on DDT levels. DDT was significantly higher in high-fat than in low-fat fish at ages III+ and IV+ but not at age V+, showing a decrease with age among fish with high fat content and remaining constant with age among fish with low fat content. It is recommended that completely random selection of fish for insecticide analyses be abandoned in favor of stratification by sex, age, and fatness. Some of the possible causes of variation in insecticide content of salmon are discussed. |
format |
Article in Journal/Newspaper |
author |
Anderson, Richard B. Fenderson, Owen C. |
author_facet |
Anderson, Richard B. Fenderson, Owen C. |
author_sort |
Anderson, Richard B. |
title |
An Analysis of Variation of Insecticide Residues in Landlocked Atlantic Salmon ( Salmo salar ) |
title_short |
An Analysis of Variation of Insecticide Residues in Landlocked Atlantic Salmon ( Salmo salar ) |
title_full |
An Analysis of Variation of Insecticide Residues in Landlocked Atlantic Salmon ( Salmo salar ) |
title_fullStr |
An Analysis of Variation of Insecticide Residues in Landlocked Atlantic Salmon ( Salmo salar ) |
title_full_unstemmed |
An Analysis of Variation of Insecticide Residues in Landlocked Atlantic Salmon ( Salmo salar ) |
title_sort |
analysis of variation of insecticide residues in landlocked atlantic salmon ( salmo salar ) |
publisher |
Canadian Science Publishing |
publishDate |
1970 |
url |
http://dx.doi.org/10.1139/f70-001 http://www.nrcresearchpress.com/doi/pdf/10.1139/f70-001 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of the Fisheries Research Board of Canada volume 27, issue 1, page 1-11 ISSN 0015-296X |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f70-001 |
container_title |
Journal of the Fisheries Research Board of Canada |
container_volume |
27 |
container_issue |
1 |
container_start_page |
1 |
op_container_end_page |
11 |
_version_ |
1785579286017605632 |