Enhanced sensitivity to an insecticide carbaryl in Daphnia magna mediated by fish kairomone
| Autor: | Takayuki Hanazato, Yusuke Oda, Kwang-Hyeon Chang, Kazuya Sato, Masaki Sakamoto |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Ecology Offspring 010604 marine biology & hydrobiology fungi Daphnia magna Zoology Aquatic Science Biology Pesticide biology.organism_classification 010603 evolutionary biology 01 natural sciences Daphnia Acute toxicity chemistry.chemical_compound chemistry Kairomone Carbaryl reproductive and urinary physiology Water Science and Technology EC50 |
| Zdroj: | Limnology. 20:137-141 |
| ISSN: | 1439-863X 1439-8621 |
| DOI: | 10.1007/s10201-019-00572-4 |
| Popis: | Fish kairomone-exposed Daphnia produce smaller offspring than unexposed mothers. These smaller offspring are expected to be more vulnerable to pesticides because Daphnia show size-dependent chemical sensitivity. To evaluate the potential effects of fish kairomone on the acute toxicity of an insecticide, carbaryl, in D. magna, we compared the offspring produced by adults reared in the absence and presence of fish in terms of body length and 48-h EC50. We also tested the sensitivities of juveniles of different ages but similar body sizes. The results indicated that sensitivity to carbaryl was not simply determined by the body size of D. magna. The tolerance of D. magna to pesticide may be strongly associated with individual energy storage conditions or metabolic costs generated by exposure to fish kairomone. |
| Databáze: | OpenAIRE |
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