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Chironomid community dynamics in Enol Lake (Picos de Europa National Park, Spain)

AuthorsTarrats, P. ; Rieradevall, María; Prat, N.; Mata, M. Pilar; Morellón, Mario ; Vegas, J.; Sánchez, J.; Valero-Garcés, Blas L. ; Moreno Caballud, Ana
KeywordsEnol lake
Lago Enol
Picos de Europa
Chironomid community
Issue DateJul-2015
PublisherSymposium for European Freshwater Sciences
CitationSEFS 9 - Symposium for European Freshwater Sciences July 5-10, 2015, Geneva, Switzerland, p. 218.
AbstractGrab samples from Enol Lake (1080 m.a.s.l., Picos de Europa National Park, Spain) were collected to evaluate the chironomid community composition, structure and spatial and temporal variability. We obtained 3 replicate samples at 4, 8, 12, 16 and 20 m water depth four times per year (May, July, September and November) in two consecutive years (2013 and 2014), with a total of 120 samples analyzed. A total of 19 taxa were identified, although the dominant taxa in all samples were Paratanytarsus, Chironomus, Tanytarsus and Procladius choreus. Chironomusand Stictochironomus taxa abundance increased with depth while the more abundant taxa in the littoral were Paratanytarsus,Endochironomus and Corynoneura. Seasonal changes concern many chironomid taxa, although it is more relevant in the case ofCorynoneura, Tanytarsus and Procladius. Spatial changes are mostly related to the presence of macrophytes and algae, especially Chara, as chironomid composition and abundance are very different in samples from macrophyte-rich and poor areas.
Appears in Collections:(IPE) Comunicaciones congresos
(IGEO) Comunicaciones congresos
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