Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/32780
Title: Macroinvertebrate assemblages on reed beds, with special attention to Chironomidae (Diptera), in Mediterranean shallow lakes.
Author: Sahuquillo, M.
Miracle Solé, María Rosa
Rieradevall i Sant, Maria
Kornijow, R.
Keywords: Llacs
Invertebrats d'aigua dolça
Dípters
Lakes
Freshwater invertebrates
Diptera
Issue Date: 2008
Publisher: Asociación Ibérica de Limnología
Abstract: Macroinvertebrates associated to reed-beds (Phragmites australis) in six shallow natural water bodies along the 220 km of coast of the Comunidad Valenciana (Spain) were studied. These sites were selected to reflect different trophic states, but also, and due to the natural variability of mediterranean wetlands, they greatly differ in salinity and hydroperiod. To unify the sampling, reed bed was chosen to provide data from a habitat common to all wetlands, including the most eutrophic ones where submerged macrophytes have disappeared due to water turbidity. Individual submerged stems of Phragmites australis were sampled along with the surrounding water. The animal density found refers to the available stem surface area for colonization. Forty-one taxa were recorded in total, finding Chironomidae to be the most important group, quantitatively and qualitatively. In freshwater sites it was observed an increase in macroinvertebrate"s density at higher trophic states. Nevertheless each studied region had a different fauna. The PCA analysis with macroinvertebrate groups distinguished three types of environment: freshwaters (characterized by swimming insect larvae, collectors and predators, oligochaetes and Orthocladiinae), saline waters (characterized by crustaceans and Chironominae) and the spring pool, which shares both taxa. Chironomids were paid special attention for being the most abundant. A DCA analysis based on the relative abundance of Chironomids reveals salinity as the main characteristic responsible for its distribution, but trophic state and hydrological regime were also shown to be important factors.
Note: Reproducció del document publicat a: http://www.limnetica.net/Limnetica/Limne27/L27b239_macroinvertebrates_mediterranean_shallow_lakes.pdf
It is part of: Limnetica, 2008, vol. 27, num. 2, p. 239-250
URI: http://hdl.handle.net/2445/32780
Appears in Collections:Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)

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