Effects of lamprey larvicides on invertebrates in streams
Special Scientific Report - Fisheries
572
Out-of-print
By: Richard L. Torblaa
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Abstract
This study was conducted on five streams tributary to Lake Superior and four tributary to Lake Michigan. Samples of the bottom fauna before and after chemical treatment revealed that most groups of aquatic organisms were not adversely affected by exposure to larvicides. The total number of invertebrates was smaller 1 week after treatment than before treatment, increased somewhat by 6 weeks after treatment, and had returned to pretreatment levels 1 year after treatment. Aquatic insects were affected less than other organisms, and invertebrates were more severely affected and recovered more slowly in areas of sand and detritus than in riffle areas.
Suggested Citation
Torblaa, R.L., 1968, Effects of lamprey larvicides on invertebrates in streams: Special Scientific Report - Fisheries 572, 13 p.
| Publication type | Report |
|---|---|
| Publication Subtype | Federal Government Series |
| Title | Effects of lamprey larvicides on invertebrates in streams |
| Series title | Special Scientific Report - Fisheries |
| Series number | 572 |
| Year Published | 1968 |
| Language | English |
| Publisher | U.S. Fish and Wildlife Service |
| Contributing office(s) | Great Lakes Science Center |
| Description | 13 p. |
| First page | 0 |
| Last page | 13 |