THE EFFECTS OF AN EXPERIMENTAL INJECTION OF METHOXYCHLOR ON AQUATIC INVERTEBRATES: ACCUMULATION, STANDING CROP, AND DRIFT
Abstract A single 0.3 ppm injection of methoxychlor into the Athabasca River, Alberta on 4 June 1974 for 15 min caused catastrophic drift for a distance of over 400 km, and a subsequent large decrease in the drifting population. This decrease, when expressed as a percentage reduction from pretreatme...
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Language: | English |
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Cambridge University Press (CUP)
1979
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Online Access: | http://dx.doi.org/10.4039/ent11173-1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X00012359 |
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crcambridgeupr:10.4039/ent11173-1 2024-04-07T07:50:50+00:00 THE EFFECTS OF AN EXPERIMENTAL INJECTION OF METHOXYCHLOR ON AQUATIC INVERTEBRATES: ACCUMULATION, STANDING CROP, AND DRIFT Flannagan, J. F. Townsend, B. E. March, B. G. E. de Friesen, M. K. Leonhard, S. L. 1979 http://dx.doi.org/10.4039/ent11173-1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X00012359 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms The Canadian Entomologist volume 111, issue 1, page 73-89 ISSN 0008-347X 1918-3240 Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology journal-article 1979 crcambridgeupr https://doi.org/10.4039/ent11173-1 2024-03-08T00:36:36Z Abstract A single 0.3 ppm injection of methoxychlor into the Athabasca River, Alberta on 4 June 1974 for 15 min caused catastrophic drift for a distance of over 400 km, and a subsequent large decrease in the drifting population. This decrease, when expressed as a percentage reduction from pretreatment drift, is in close agreement with percentage reduction of standing crop recorded by other sampling methods. The time required for the pesticide to affect different species varied considerably but was not related to the mode of feeding. Methoxychlor residues above ambient levels in water were recorded in all the invertebrate populations sampled. Caged animals had significantly different residues than the natural populations. The use of caged animals as indicators of environmental damage is therefore questioned. Article in Journal/Newspaper Athabasca River Cambridge University Press Athabasca River The Canadian Entomologist 111 1 73 89 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology |
spellingShingle |
Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology Flannagan, J. F. Townsend, B. E. March, B. G. E. de Friesen, M. K. Leonhard, S. L. THE EFFECTS OF AN EXPERIMENTAL INJECTION OF METHOXYCHLOR ON AQUATIC INVERTEBRATES: ACCUMULATION, STANDING CROP, AND DRIFT |
topic_facet |
Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology |
description |
Abstract A single 0.3 ppm injection of methoxychlor into the Athabasca River, Alberta on 4 June 1974 for 15 min caused catastrophic drift for a distance of over 400 km, and a subsequent large decrease in the drifting population. This decrease, when expressed as a percentage reduction from pretreatment drift, is in close agreement with percentage reduction of standing crop recorded by other sampling methods. The time required for the pesticide to affect different species varied considerably but was not related to the mode of feeding. Methoxychlor residues above ambient levels in water were recorded in all the invertebrate populations sampled. Caged animals had significantly different residues than the natural populations. The use of caged animals as indicators of environmental damage is therefore questioned. |
format |
Article in Journal/Newspaper |
author |
Flannagan, J. F. Townsend, B. E. March, B. G. E. de Friesen, M. K. Leonhard, S. L. |
author_facet |
Flannagan, J. F. Townsend, B. E. March, B. G. E. de Friesen, M. K. Leonhard, S. L. |
author_sort |
Flannagan, J. F. |
title |
THE EFFECTS OF AN EXPERIMENTAL INJECTION OF METHOXYCHLOR ON AQUATIC INVERTEBRATES: ACCUMULATION, STANDING CROP, AND DRIFT |
title_short |
THE EFFECTS OF AN EXPERIMENTAL INJECTION OF METHOXYCHLOR ON AQUATIC INVERTEBRATES: ACCUMULATION, STANDING CROP, AND DRIFT |
title_full |
THE EFFECTS OF AN EXPERIMENTAL INJECTION OF METHOXYCHLOR ON AQUATIC INVERTEBRATES: ACCUMULATION, STANDING CROP, AND DRIFT |
title_fullStr |
THE EFFECTS OF AN EXPERIMENTAL INJECTION OF METHOXYCHLOR ON AQUATIC INVERTEBRATES: ACCUMULATION, STANDING CROP, AND DRIFT |
title_full_unstemmed |
THE EFFECTS OF AN EXPERIMENTAL INJECTION OF METHOXYCHLOR ON AQUATIC INVERTEBRATES: ACCUMULATION, STANDING CROP, AND DRIFT |
title_sort |
effects of an experimental injection of methoxychlor on aquatic invertebrates: accumulation, standing crop, and drift |
publisher |
Cambridge University Press (CUP) |
publishDate |
1979 |
url |
http://dx.doi.org/10.4039/ent11173-1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X00012359 |
geographic |
Athabasca River |
geographic_facet |
Athabasca River |
genre |
Athabasca River |
genre_facet |
Athabasca River |
op_source |
The Canadian Entomologist volume 111, issue 1, page 73-89 ISSN 0008-347X 1918-3240 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.4039/ent11173-1 |
container_title |
The Canadian Entomologist |
container_volume |
111 |
container_issue |
1 |
container_start_page |
73 |
op_container_end_page |
89 |
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1795665612707463168 |