Abstract
Over-abundance of higher aquatic vegetation is one of the most serious problems in inland lakes of the United States. Sodium arsenite is extensively used in these areas to control or destroy aquatic vegetation, but little is known of its pathways in the aquatic system or its effects on the biota of the system. Sodium arsenite tagged with {sup 74}As was added to a series of aquaria and its uptake, movement within the ecosystem, and effect upon the metabolism of the system studied. A duplicate experiment was run in a. 1/3 acre pond (0.14 hectare) in which plants were treated at the levels(8 ppm) usually employed in commercial treatment. The sodium arsenite was taken up actively by the plants immediately and recycled to the water and soil by decay and sedimentation of the plants within 5 d. The herbicide and tracer were taken up very actively by filamentous algae (Spirogyra) and the activity disappeared within 8 h and the algae died within a day following. Chara which is generally considered not to take up the herbicide was very radioactive but showed no signs of deterioration or change in growth pattern or rate. The tagged material persisted in the water for the
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Ball, R. C.;
[1]
Hooper, F. H.
[2]
- Michigan State University, East Lansing, MI (United States)
- Michigan Department of Conservation, Ann Arbor, MI (United States)
Citation Formats
Ball, R. C., and Hooper, F. H.
Use of {sup 74}As-Tagged Sodium Arsenite in a Study of Effects of a Herbicide on Pond Ecology.
IAEA: N. p.,
1966.
Web.
Ball, R. C., & Hooper, F. H.
Use of {sup 74}As-Tagged Sodium Arsenite in a Study of Effects of a Herbicide on Pond Ecology.
IAEA.
Ball, R. C., and Hooper, F. H.
1966.
"Use of {sup 74}As-Tagged Sodium Arsenite in a Study of Effects of a Herbicide on Pond Ecology."
IAEA.
@misc{etde_22118938,
title = {Use of {sup 74}As-Tagged Sodium Arsenite in a Study of Effects of a Herbicide on Pond Ecology}
author = {Ball, R. C., and Hooper, F. H.}
abstractNote = {Over-abundance of higher aquatic vegetation is one of the most serious problems in inland lakes of the United States. Sodium arsenite is extensively used in these areas to control or destroy aquatic vegetation, but little is known of its pathways in the aquatic system or its effects on the biota of the system. Sodium arsenite tagged with {sup 74}As was added to a series of aquaria and its uptake, movement within the ecosystem, and effect upon the metabolism of the system studied. A duplicate experiment was run in a. 1/3 acre pond (0.14 hectare) in which plants were treated at the levels(8 ppm) usually employed in commercial treatment. The sodium arsenite was taken up actively by the plants immediately and recycled to the water and soil by decay and sedimentation of the plants within 5 d. The herbicide and tracer were taken up very actively by filamentous algae (Spirogyra) and the activity disappeared within 8 h and the algae died within a day following. Chara which is generally considered not to take up the herbicide was very radioactive but showed no signs of deterioration or change in growth pattern or rate. The tagged material persisted in the water for the duration of the study in amounts of nearly one half of the applied amounts. Certain of the invertebrates (microcrustacea) are very sensitive to low levels of sodium arsenite, while others show large concentrations and appear to be unaffected by the herbicide. The arsenite moved into the soil and reached a depth of 3 in. in the undisturbed bottom deposits in a 60-d period. The general effect on the community metabolism of the pond as shown by the diurnal oxygen curve indicates a drastic response to the herbicide and, raises serious questions as to the advisability of use of this herbicide in fish-producing ponds due to its effect upon the several trophic levels in the food web of fish. (author)}
place = {IAEA}
year = {1966}
month = {May}
}
title = {Use of {sup 74}As-Tagged Sodium Arsenite in a Study of Effects of a Herbicide on Pond Ecology}
author = {Ball, R. C., and Hooper, F. H.}
abstractNote = {Over-abundance of higher aquatic vegetation is one of the most serious problems in inland lakes of the United States. Sodium arsenite is extensively used in these areas to control or destroy aquatic vegetation, but little is known of its pathways in the aquatic system or its effects on the biota of the system. Sodium arsenite tagged with {sup 74}As was added to a series of aquaria and its uptake, movement within the ecosystem, and effect upon the metabolism of the system studied. A duplicate experiment was run in a. 1/3 acre pond (0.14 hectare) in which plants were treated at the levels(8 ppm) usually employed in commercial treatment. The sodium arsenite was taken up actively by the plants immediately and recycled to the water and soil by decay and sedimentation of the plants within 5 d. The herbicide and tracer were taken up very actively by filamentous algae (Spirogyra) and the activity disappeared within 8 h and the algae died within a day following. Chara which is generally considered not to take up the herbicide was very radioactive but showed no signs of deterioration or change in growth pattern or rate. The tagged material persisted in the water for the duration of the study in amounts of nearly one half of the applied amounts. Certain of the invertebrates (microcrustacea) are very sensitive to low levels of sodium arsenite, while others show large concentrations and appear to be unaffected by the herbicide. The arsenite moved into the soil and reached a depth of 3 in. in the undisturbed bottom deposits in a 60-d period. The general effect on the community metabolism of the pond as shown by the diurnal oxygen curve indicates a drastic response to the herbicide and, raises serious questions as to the advisability of use of this herbicide in fish-producing ponds due to its effect upon the several trophic levels in the food web of fish. (author)}
place = {IAEA}
year = {1966}
month = {May}
}