To flee or not to flee: detection, avoidance and attraction of profitable resources by Daphnia magna studied with olfactometer
<p><em>The cladoceran herbivore </em>Daphnia magna <em>is a major consumer of phytoplankton in lakes. Therefore, this organism may control the phytoplankton community and the proliferation of some algae or cyanobacteria. Cladoceran behaviour and migration in relation to tempe...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
PAGEPress Publications
2013-10-01
|
| Series: | Journal of Limnology |
| Subjects: | |
| Online Access: | http://www.jlimnol.it/index.php/jlimnol/article/view/600 |
| _version_ | 1818281605978914816 |
|---|---|
| author | Johann P. Müller David Laloi Claude Yéprémian Cécile Bernard Florence D. Hulot |
| author_facet | Johann P. Müller David Laloi Claude Yéprémian Cécile Bernard Florence D. Hulot |
| author_sort | Johann P. Müller |
| collection | DOAJ |
| description | <p><em>The cladoceran herbivore </em>Daphnia magna <em>is a major consumer of phytoplankton in lakes. Therefore, this organism may control the phytoplankton community and the proliferation of some algae or cyanobacteria. Cladoceran behaviour and migration in relation to temperature, light or presence of planktivorous fishes have been well studied. In particular, it is known that the detection of kairomones produced by predators may induce avoidance. Avoidance could also occur with other semiochemicals such as cyanotoxins. In order to explore this hypothesis, we used an olfactometer to observe and measure the exploratory behaviour of </em>D. magna <em>individuals based on the motivation for food. Daphnids were allowed to choose between different compounds: water, a pure cyanotoxin, </em>i.e. <em>the microcystin-RR [(MC)-RR], extracts of one MC-producing strain (PMC 75.02) and one MC-free strain (PMC 87.02) of </em>Planktothrix agardhii<em>, or a green algae </em>Scenedesmus obliquus<em>. With this experimental design, we observed that i) cladocerans are able to detect resources with different qualities, ii) they can explore before exhibiting preferences, and iii) daphnids are able to avoid compounds that are potentially toxic (</em>e.g., <em>microcystins). First, daphnids explored the environment, subsequently (after about 1.5 h), they showed a significant tendency to stay where there is a profitable resource such as </em>S. obliquus<em>. These results also suggest that specimens of </em>D. magna <em>cannot detect MC compounds from </em>P. agardhii<em>, but they respond to it as a food resource. The study of zooplankton ability to explore the environment when exposed to semiochemicals needs further investigation</em>.</p><p> </p> |
| first_indexed | 2024-12-13T00:07:47Z |
| format | Article |
| id | doaj.art-17f0ab6c1e5b40ceac1dd2d9a1e9076b |
| institution | Directory Open Access Journal |
| issn | 1129-5767 1723-8633 |
| language | English |
| last_indexed | 2024-12-13T00:07:47Z |
| publishDate | 2013-10-01 |
| publisher | PAGEPress Publications |
| record_format | Article |
| series | Journal of Limnology |
| spelling | doaj.art-17f0ab6c1e5b40ceac1dd2d9a1e9076b2022-12-22T00:06:07ZengPAGEPress PublicationsJournal of Limnology1129-57671723-86332013-10-01723e37e3710.4081/jlimnol.2013.e37570To flee or not to flee: detection, avoidance and attraction of profitable resources by Daphnia magna studied with olfactometerJohann P. Müller0David Laloi1Claude Yéprémian2Cécile Bernard3Florence D. Hulot4Laboratoire Bioemco, Ecole Normale Supérieure, Paris Cedex 05, France UFR Sciences de la Vie, UPMC Univ Paris 06, Paris, FranceUPMC Univ Paris 06 – Ecole Normale Supérieure – AgroParisTech – CNRS, UMR 7625, Ecologie & Evolution, 7 quai Saint Bernard, case 237, F-75005, Paris, FranceUMR 7245 CNRS / MNHN MCAM, Cyanobactéries, Cyanotoxines et Environnement, Muséum National d’Histoire Naturelle, 57 rue Cuvier, CP 39, 75231 Paris Cedex 05, FranceUMR 7245 CNRS / MNHN MCAM, Cyanobactéries, Cyanotoxines et Environnement, Muséum National d’Histoire Naturelle, 57 rue Cuvier, CP 39, 75231 Paris Cedex 05, FranceEcologie, Systématique & Evolution, UMR-CNRS 8079, Univ Paris Sud, Orsay cedex 91405, France<p><em>The cladoceran herbivore </em>Daphnia magna <em>is a major consumer of phytoplankton in lakes. Therefore, this organism may control the phytoplankton community and the proliferation of some algae or cyanobacteria. Cladoceran behaviour and migration in relation to temperature, light or presence of planktivorous fishes have been well studied. In particular, it is known that the detection of kairomones produced by predators may induce avoidance. Avoidance could also occur with other semiochemicals such as cyanotoxins. In order to explore this hypothesis, we used an olfactometer to observe and measure the exploratory behaviour of </em>D. magna <em>individuals based on the motivation for food. Daphnids were allowed to choose between different compounds: water, a pure cyanotoxin, </em>i.e. <em>the microcystin-RR [(MC)-RR], extracts of one MC-producing strain (PMC 75.02) and one MC-free strain (PMC 87.02) of </em>Planktothrix agardhii<em>, or a green algae </em>Scenedesmus obliquus<em>. With this experimental design, we observed that i) cladocerans are able to detect resources with different qualities, ii) they can explore before exhibiting preferences, and iii) daphnids are able to avoid compounds that are potentially toxic (</em>e.g., <em>microcystins). First, daphnids explored the environment, subsequently (after about 1.5 h), they showed a significant tendency to stay where there is a profitable resource such as </em>S. obliquus<em>. These results also suggest that specimens of </em>D. magna <em>cannot detect MC compounds from </em>P. agardhii<em>, but they respond to it as a food resource. The study of zooplankton ability to explore the environment when exposed to semiochemicals needs further investigation</em>.</p><p> </p>http://www.jlimnol.it/index.php/jlimnol/article/view/600Daphnia magna, Planktothrix agardhii, olfactometer, migration, secondary metabolites, cyanotoxins. |
| spellingShingle | Johann P. Müller David Laloi Claude Yéprémian Cécile Bernard Florence D. Hulot To flee or not to flee: detection, avoidance and attraction of profitable resources by Daphnia magna studied with olfactometer Journal of Limnology Daphnia magna, Planktothrix agardhii, olfactometer, migration, secondary metabolites, cyanotoxins. |
| title | To flee or not to flee: detection, avoidance and attraction of profitable resources by Daphnia magna studied with olfactometer |
| title_full | To flee or not to flee: detection, avoidance and attraction of profitable resources by Daphnia magna studied with olfactometer |
| title_fullStr | To flee or not to flee: detection, avoidance and attraction of profitable resources by Daphnia magna studied with olfactometer |
| title_full_unstemmed | To flee or not to flee: detection, avoidance and attraction of profitable resources by Daphnia magna studied with olfactometer |
| title_short | To flee or not to flee: detection, avoidance and attraction of profitable resources by Daphnia magna studied with olfactometer |
| title_sort | to flee or not to flee detection avoidance and attraction of profitable resources by daphnia magna studied with olfactometer |
| topic | Daphnia magna, Planktothrix agardhii, olfactometer, migration, secondary metabolites, cyanotoxins. |
| url | http://www.jlimnol.it/index.php/jlimnol/article/view/600 |
| work_keys_str_mv | AT johannpmuller tofleeornottofleedetectionavoidanceandattractionofprofitableresourcesbydaphniamagnastudiedwitholfactometer AT davidlaloi tofleeornottofleedetectionavoidanceandattractionofprofitableresourcesbydaphniamagnastudiedwitholfactometer AT claudeyepremian tofleeornottofleedetectionavoidanceandattractionofprofitableresourcesbydaphniamagnastudiedwitholfactometer AT cecilebernard tofleeornottofleedetectionavoidanceandattractionofprofitableresourcesbydaphniamagnastudiedwitholfactometer AT florencedhulot tofleeornottofleedetectionavoidanceandattractionofprofitableresourcesbydaphniamagnastudiedwitholfactometer |