| dc.creator | Ferrão Filho, Aloysio S. | |
| dc.creator | Soares, Maria Carolina S. | |
| dc.creator | Lima, Ramon S. | |
| dc.creator | Magalhães, Valéria F. | |
| dc.date | 2020-05-19T13:29:21Z | |
| dc.date | 2020-05-19T13:29:21Z | |
| dc.date | 2014 | |
| dc.date.accessioned | 2023-09-26T23:38:14Z | |
| dc.date.available | 2023-09-26T23:38:14Z | |
| dc.identifier | FERRÃO FILHO, Aloysio da S. et al. Effects of Cylindrospermosis Raciborskii (Cyanobacteria) on the swimming behavior of Daphnia (Cladocera). Environmental Toxicology and Chemistry, v. 33, n. 1, p. 223-229, 2014. | |
| dc.identifier | 0730-7268 | |
| dc.identifier | https://www.arca.fiocruz.br/handle/icict/41299 | |
| dc.identifier | 1552-8618 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8892651 | |
| dc.description | The present study aimed to test the effects of raw water samples from a eutrophic reservoir and of a saxitoxin-producing strain of
Cylindrospermopsis raciborskii on the swimming behavior of 2 key herbivore species of Daphnia. Two complementary approaches were
used, acute bioassays and behavioral assays using an automated movement tracking system for measuring the following activity
parameters: swimming time, resting time, distance traveled, and mean velocity. In both assays, animals were exposed to field samples or to
toxic filaments in different concentrations and observed for 2 h to 3 h. In the acute bioassays, there was a decrease in the number of
swimming individuals during the exposure period and a recovery following removal from toxic algae. A significant relationship was
found between median effective concentration and the saxitoxin content of seston (r2¼0.998; p¼0.025) in the acute bioassays with raw
water samples. Behavioral assays also showed significant effects in the activity parameters with both field samples and the strain
of C. raciborskii, with some recovery during the exposure period. Both approaches corroborated previous research on the effects of
neurotoxic C. raciborskii on the swimming activity of Daphnia, and these effects are compatible with the mechanism of action of
saxitoxins. The present study showed that activity parameters of aquatic organisms may be a useful tool in the evaluation of sublethal
toxicity and detection of neurotoxins in raw water. | |
| dc.description | 2022-01-01 | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Wiley 12 Months | |
| dc.rights | restricted access | |
| dc.subject | Daphnia | |
| dc.subject | Cianobacteria | |
| dc.subject | Micotoxinas | |
| dc.subject | Daphnia | |
| dc.subject | Swimming | |
| dc.subject | Cyanobacteria | |
| dc.subject | Mycrocystins | |
| dc.subject | Saxitoxins | |
| dc.title | Effects of Cylyndrospermosis Raciborskii (Cyanobacteria) on the swimming behavior of Daphnia (Cladocera)2014 | |
| dc.type | Article | |
