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| Balseiro,Esteban; Souza,María S.; Serra Olabuenaga,Ignacio; Wolinski,Laura; Bastidas Navarro,Marcela; Laspoumaderes,Cecilia; Modenutti,Beatriz. |
| We studied the effect of volcanic ash on the crustacean zooplankton (mainly cladocerans) in the Andean North-Patagonian lakes that were affected by the eruption of the Puyehue-Cordón Caulle complex. The study was carried out at three different scales: sub cellular, population and ecosystemic. Cladocerans are filter feeding organisms that cannot distinguish between food (algae less than 30 µm) and suspended ash, therefore when feeding they ingest this material. The ash affected negatively the individuals at a biochemical level, increasing the oxidative stress reacting enzymes like Glutation-S-transferase and the biomarker Acetyl cholinesterase. At the population level, we recorded a decrease in survival and fecundity, in particular, when ash concentration... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Volcanic ash; Cladocerans; Oxidative stress; Survivorship; Trophic level. |
| Ano: 2014 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2014000100009 |
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