Keratella
- Keratella americana
- Keratella cochlearis
[ref. ID; 1264]
Test system
Strains
From Butterfly Lake on August 11, 1972. Immature female, young female without egg, egg-bearing female.
Toxicants
Water-soluble or water-emulsifiable commercial formulations of 2,4,5-T (Line Rider Amine 4T, Veon 245, Line Rider 4T, Dacamine 4T, Lo-Vol 4T, and Lo-Vol 6T).
Test design
Temperature 20 degrees C. Food: Chlorella sp. or Cryptomonas sp. Sampling time: 12, 24, 48, 72, and 96 hr.
Measurements/observations
Mean remaining length of life (days), mean time to hatch (days), and mean longevity.
Evaluations
LC50.
[ref. ID; 1264]
Test system
Strains
From Lake Forest on August 11, 1972. Immature female, young female without egg, egg-bearing female.
Toxicants
Water-soluble or water-emulsifiable commercial formulations of 2,4,5-T (Line Rider Amine 4T, Veon 245, Line Rider 4T, Dacamine 4T, Lo-Vol 4T, and Lo-Vol 6T).
Test design
Temperature 20 degrees C. Food: Chlorella sp. or Cryptomonas sp. Sampling time: 12, 24, 48, 72, and 96 hr.
Measurements/observations
Mean remaining length of life (days), mean time to hatch (days), mean longevity, and form changes.
Evaluations
LC50.