Please use this identifier to cite or link to this item:
http://hdl.handle.net/10261/17544
Share/Export:
![]() ![]() |
|
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Title: | Assessment of exotic fish impacts on water quality and zooplankton in a degraded semi-arid floodplain wetland |
Authors: | Angeler, D. G.; Álvarez Cobelas, Miguel ; Sánchez Carrillo, Salvador CSIC ORCID ; Rodrigo, María A. | Keywords: | Cyprinus carpio Lepomis gibbosus Gambusia holbrookii Impact assessments Food webs |
Issue Date: | 2002 | Publisher: | Birkhäuser Verlag | Citation: | Aquatic sciences 64:76-86 (2002) | Abstract: | We carried out enclosure experiments to assess the potential deleterious effects of the alien species common carp (Cyprinus carpio L.), mosquitofish (Gambusia holbrookii Gir.), and pumpkinseed sunfish (Lepomis gibbosus L.) on water quality and food web in a severely degraded floodplain wetland, the Spanish National Park Las Tablas de Daimiel. With addition of either carp or pumpkinseed sunfish, chlorophyll a and turbidity levels, as well as concentrations of total phosphorus and total nitrogen increased. The magnitude of this increase depended on fish species and was severest in the carp treatment. Mosquitofish did not significantly affect water quality. In the treatments with fish, cyclopoid copepods and rotifers dominated, while cladocerans were virtually absent. Zooplankton biomass was significantly lower in the carp Aquat. Sci. 64 (2002) 76–86 1015-1621/02/010076-11 © EAWAG, Dübendorf, 2002 Aquatic Sciences treatment compared with the control. However, no direct negative effect (predation) of carp was observed. Zooplankton biomass did not differ from the control, neither with pumpkinseed sunfish treatment nor with mosquitofish treatment. Nonetheless, both fish species had a negative impact on zooplankton biomass owing to planktivorous feeding. Ceriodaphnia reticulata Jurine populations increased in the fishless controls. Only this cladoceran species was able to control significantly phytoplankton. Results indicate that biomanipulations could have a high potential for environmental quality improvements of degraded riverine wetlands. A model was built to predict the potential advances and successes of biomanipulations in the wetland. | Description: | 11 pages, and figures, and tables stadistics. | Publisher version (URL): | http://dx.doi.org/10.1007/s00027-002-8056-y | URI: | http://hdl.handle.net/10261/17544 | DOI: | 10.1007/s00027-002-8056-y | ISSN: | 1015-1621 | E-ISSN: | 1420-9055 |
Appears in Collections: | (IRN) Artículos |
Show full item record
Review this work
SCOPUSTM
Citations
67
checked on May 13, 2022
WEB OF SCIENCETM
Citations
59
checked on May 15, 2022
Page view(s)
364
checked on May 17, 2022
Google ScholarTM
Check
Altmetric
Dimensions
WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.