Citation
Kumar T.K., . and Kaviraj A., . and Ghosal T.K, . The effects of cadmium on plankton populations under different manurial treatments. pp. 89-94. ISSN 0126-6128
Abstract
Recovery of plankton populations from exposure to 1 mg/l of cadmium was studied in an outdoor bioassay using inorganic fertilizers cow dung or poultry litter as nutrient additions. Although 99 of the plankton populations were eliminated immediately after exposure to cadmium both zoo- and phytoplankton densities began reappearing at a slow rate from Day 15 of treatment. Zooplankton populations of the treated vats became numerically comparable to the control within 55 days of treatment. Poultry litter effected a quicker recovery of zooplankton populations. However phytoplankton populations did not recover from the cadmium stress in any of the nutrient treatments even after 55 days. Dissolved cadmium was present in solution up to Day 15 while in the other treatments it persisted up to 25 days.
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Abstract
Recovery of plankton populations from exposure to 1 mg/l of cadmium was studied in an outdoor bioassay using inorganic fertilizers cow dung or poultry litter as nutrient additions. Although 99 of the plankton populations were eliminated immediately after exposure to cadmium both zoo- and phytoplankton densities began reappearing at a slow rate from Day 15 of treatment. Zooplankton populations of the treated vats became numerically comparable to the control within 55 days of treatment. Poultry litter effected a quicker recovery of zooplankton populations. However phytoplankton populations did not recover from the cadmium stress in any of the nutrient treatments even after 55 days. Dissolved cadmium was present in solution up to Day 15 while in the other treatments it persisted up to 25 days.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Cadmium |
| AGROVOC Term: | Plankton |
| AGROVOC Term: | Zooplankton |
| AGROVOC Term: | Phytoplankton |
| AGROVOC Term: | Inorganic fertilizers |
| AGROVOC Term: | Poultry litter |
| AGROVOC Term: | Algal blooms |
| AGROVOC Term: | Manures (fertilizers) |
| Geographical Term: | Malaysia |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 27 Apr 2025 23:21 |
| URI: | http://webagris.upm.edu.my/id/eprint/22728 |
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