An experimental study of the effects of nutrient supply and Chaoborus predation on zooplankton communities of a shallow tropical reservoir (Lake Brobo, Côte d'Ivoire)
Summary 1. Based on two mesocosm experiments and 10 in vitro predation experiments, this work aimed to evaluate the impact of nutrient supply and Chaoborus predation on the structure of the zooplankton community in a small reservoir in Côte d'Ivoire. 2. During the first mesocosm experiment (M1)...
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Online Access: | http://dx.doi.org/10.1046/j.1365-2427.2003.01096.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2427.2003.01096.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2427.2003.01096.x |
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crwiley:10.1046/j.1365-2427.2003.01096.x 2024-06-02T08:16:00+00:00 An experimental study of the effects of nutrient supply and Chaoborus predation on zooplankton communities of a shallow tropical reservoir (Lake Brobo, Côte d'Ivoire) Pagano, Marc Koffi, Maryse Aka Cecchi, Philippe Corbin, Daniel Champalbert, Gisèle Saint‐Jean, Lucien 2003 http://dx.doi.org/10.1046/j.1365-2427.2003.01096.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2427.2003.01096.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2427.2003.01096.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Freshwater Biology volume 48, issue 8, page 1379-1395 ISSN 0046-5070 1365-2427 journal-article 2003 crwiley https://doi.org/10.1046/j.1365-2427.2003.01096.x 2024-05-03T10:54:52Z Summary 1. Based on two mesocosm experiments and 10 in vitro predation experiments, this work aimed to evaluate the impact of nutrient supply and Chaoborus predation on the structure of the zooplankton community in a small reservoir in Côte d'Ivoire. 2. During the first mesocosm experiment (M1), P enrichment had no effect on phytoplankton biomass (chlorophyll a ) but significantly increased the biomass of some herbivorous zooplankton species ( Filinia sp, Ceriodaphnia affinis ). During the second experiment (M2), N and P enrichment greatly increased phytoplankton biomass, rotifers and cladocerans ( C. affinis, C. cornuta, Moina micrura and Diaphanosoma excisum ). In both experiments, nutrient addition had a negative impact on cyclopoid copepods. 3. Larger zooplankton, such as cladocerans or copepodites and adults of Thermocyclops sp., were significantly reduced in enclosures with Chaoborus in both mesocosm experiments, whereas there was no significant reduction of rotifers and copepod nauplii. This selective predation by Chaoborus shaped the zooplankton community and modified its size structure. In addition, a significant Chaoborus effect on chlorophyll a was shown in both experiments. 4. The preference of Chaoborus for larger prey was confirmed in the predation experiments. Cladocerans D. excisum and M. micrura were the most selected prey. Rotifer abundance was not significantly reduced in any of the 10 experiments performed. 5. In conclusion, both bottom‐up and top‐down factors may exert a structuring control on the zooplankton community. Nutrients favoured more strictly herbivorous taxa and disadvantaged the cyclopoid copepods. Chaoborus predation had a strong direct negative impact on larger crustaceans, favoured small herbivores (rotifer, nauplii) and seemed to cascade down to phytoplankton. Article in Journal/Newspaper Copepods Rotifer Wiley Online Library Reservoir Lake ENVELOPE(-100.990,-100.990,56.757,56.757) Freshwater Biology 48 8 1379 1395 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Summary 1. Based on two mesocosm experiments and 10 in vitro predation experiments, this work aimed to evaluate the impact of nutrient supply and Chaoborus predation on the structure of the zooplankton community in a small reservoir in Côte d'Ivoire. 2. During the first mesocosm experiment (M1), P enrichment had no effect on phytoplankton biomass (chlorophyll a ) but significantly increased the biomass of some herbivorous zooplankton species ( Filinia sp, Ceriodaphnia affinis ). During the second experiment (M2), N and P enrichment greatly increased phytoplankton biomass, rotifers and cladocerans ( C. affinis, C. cornuta, Moina micrura and Diaphanosoma excisum ). In both experiments, nutrient addition had a negative impact on cyclopoid copepods. 3. Larger zooplankton, such as cladocerans or copepodites and adults of Thermocyclops sp., were significantly reduced in enclosures with Chaoborus in both mesocosm experiments, whereas there was no significant reduction of rotifers and copepod nauplii. This selective predation by Chaoborus shaped the zooplankton community and modified its size structure. In addition, a significant Chaoborus effect on chlorophyll a was shown in both experiments. 4. The preference of Chaoborus for larger prey was confirmed in the predation experiments. Cladocerans D. excisum and M. micrura were the most selected prey. Rotifer abundance was not significantly reduced in any of the 10 experiments performed. 5. In conclusion, both bottom‐up and top‐down factors may exert a structuring control on the zooplankton community. Nutrients favoured more strictly herbivorous taxa and disadvantaged the cyclopoid copepods. Chaoborus predation had a strong direct negative impact on larger crustaceans, favoured small herbivores (rotifer, nauplii) and seemed to cascade down to phytoplankton. |
format |
Article in Journal/Newspaper |
author |
Pagano, Marc Koffi, Maryse Aka Cecchi, Philippe Corbin, Daniel Champalbert, Gisèle Saint‐Jean, Lucien |
spellingShingle |
Pagano, Marc Koffi, Maryse Aka Cecchi, Philippe Corbin, Daniel Champalbert, Gisèle Saint‐Jean, Lucien An experimental study of the effects of nutrient supply and Chaoborus predation on zooplankton communities of a shallow tropical reservoir (Lake Brobo, Côte d'Ivoire) |
author_facet |
Pagano, Marc Koffi, Maryse Aka Cecchi, Philippe Corbin, Daniel Champalbert, Gisèle Saint‐Jean, Lucien |
author_sort |
Pagano, Marc |
title |
An experimental study of the effects of nutrient supply and Chaoborus predation on zooplankton communities of a shallow tropical reservoir (Lake Brobo, Côte d'Ivoire) |
title_short |
An experimental study of the effects of nutrient supply and Chaoborus predation on zooplankton communities of a shallow tropical reservoir (Lake Brobo, Côte d'Ivoire) |
title_full |
An experimental study of the effects of nutrient supply and Chaoborus predation on zooplankton communities of a shallow tropical reservoir (Lake Brobo, Côte d'Ivoire) |
title_fullStr |
An experimental study of the effects of nutrient supply and Chaoborus predation on zooplankton communities of a shallow tropical reservoir (Lake Brobo, Côte d'Ivoire) |
title_full_unstemmed |
An experimental study of the effects of nutrient supply and Chaoborus predation on zooplankton communities of a shallow tropical reservoir (Lake Brobo, Côte d'Ivoire) |
title_sort |
experimental study of the effects of nutrient supply and chaoborus predation on zooplankton communities of a shallow tropical reservoir (lake brobo, côte d'ivoire) |
publisher |
Wiley |
publishDate |
2003 |
url |
http://dx.doi.org/10.1046/j.1365-2427.2003.01096.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2427.2003.01096.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2427.2003.01096.x |
long_lat |
ENVELOPE(-100.990,-100.990,56.757,56.757) |
geographic |
Reservoir Lake |
geographic_facet |
Reservoir Lake |
genre |
Copepods Rotifer |
genre_facet |
Copepods Rotifer |
op_source |
Freshwater Biology volume 48, issue 8, page 1379-1395 ISSN 0046-5070 1365-2427 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-2427.2003.01096.x |
container_title |
Freshwater Biology |
container_volume |
48 |
container_issue |
8 |
container_start_page |
1379 |
op_container_end_page |
1395 |
_version_ |
1800740331840339968 |