Citation
Fatimah Md. Yusoff, . and Adibah Shakri, . and Intan Safinar Ismail, . and Toda Tatsuki, . Reduced reproductive capacity in Moina micrura Kurz 1875 exposed to toxic Microcystis spp. pp. 42-49. ISSN 0116-6514
Abstract
Toxic cyanobacterial blooms are considered harmful to all consuming organisms along the aquatic food chain and top consumers including humans. Hence this study was conducted to assess the impacts of two toxic Microcystis spp. on a tropical cladoceran Moina micrura Kurz 1875. Population growth studies and chronic bioassays were conducted using Microcystis aeruginosa (Ktzing) Ktzing 1846 Microcystis viridis f. viridis (A. Braun) Elenkin 1938 and a green alga Chlorella vulgaris f. tertia Fott et Novakova 1972 (as the control). Both Microcystis spp. negatively affected M. micrura. The population growth rate of M. micrura fed with C. vulgaris was 0.51 day- while growth rates were negative when fed with M. aeruginosa (- 0.33 day- ) and M. viridis (- 0.13 day- ). In the chronic bioassay the exposure of M. micrura to M. aeruginosa resulted in delayed production of M. micruras first batch of offsprings which only occurred on day 6 compared to M. micrura fed with C. vulgaris which produced their first batch of offsprings earlier on day 3. This study showed that exposure of M. micrura to both toxic Microcystis spp. reduced the population density fecundity total offspring production and longevity of M. micrura compared to those fed with C. vulgaris.
Download File
Full text available from:
Official URL: http://www.asianfisheriessociety.org/publication/d...
|
Abstract
Toxic cyanobacterial blooms are considered harmful to all consuming organisms along the aquatic food chain and top consumers including humans. Hence this study was conducted to assess the impacts of two toxic Microcystis spp. on a tropical cladoceran Moina micrura Kurz 1875. Population growth studies and chronic bioassays were conducted using Microcystis aeruginosa (Ktzing) Ktzing 1846 Microcystis viridis f. viridis (A. Braun) Elenkin 1938 and a green alga Chlorella vulgaris f. tertia Fott et Novakova 1972 (as the control). Both Microcystis spp. negatively affected M. micrura. The population growth rate of M. micrura fed with C. vulgaris was 0.51 day- while growth rates were negative when fed with M. aeruginosa (- 0.33 day- ) and M. viridis (- 0.13 day- ). In the chronic bioassay the exposure of M. micrura to M. aeruginosa resulted in delayed production of M. micruras first batch of offsprings which only occurred on day 6 compared to M. micrura fed with C. vulgaris which produced their first batch of offsprings earlier on day 3. This study showed that exposure of M. micrura to both toxic Microcystis spp. reduced the population density fecundity total offspring production and longevity of M. micrura compared to those fed with C. vulgaris.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Moina |
| AGROVOC Term: | Phytoplankton |
| AGROVOC Term: | Zooplankton |
| AGROVOC Term: | Reproductive capacity |
| AGROVOC Term: | Feeding |
| AGROVOC Term: | Microcystis |
| AGROVOC Term: | Microcystis aeruginosa |
| AGROVOC Term: | Chlorella vulgaris |
| AGROVOC Term: | Green algae |
| AGROVOC Term: | Population growth |
| Depositing User: | Mr. AFANDI ABDUL MALEK |
| Last Modified: | 24 Apr 2025 00:54 |
| URI: | http://webagris.upm.edu.my/id/eprint/8946 |
Actions (login required)
 |
View Item |
