Microcystin–LR, -RR, -YR and –LA in water samples and fishes from a shallow lake in Argentina

AMÉ, MARÍA VALERIA; GALANTI, LUCAS NICOLÁS; MENONE, MIRTA; GERPE, MARCELA; MORENO, VICTOR; WUNDERLIN, DANIEL ALBERTO

ELSEVIER SCIENCE BV

Año: 2010 vol. 9 p. 66 - 66

p style="LINE-HEIGHT: 200%; MARGIN: 0cm 0cm 0pt" class="MsoNormal">We evaluated the presence of four common microcystins (MC-LR, -RR, -YR and -LA) in water samples and tissues (liver and muscle) of Odontesthes bonariensis collected in Los Padres Lake (Argentina). MC were quantified by HPLC-ESI-MS/MS. The total content of MC in water samples (2.9 ± 5.8 ìg L-1) and in O. bonariensis muscle (3.9 ± 2.2 ìg g-1) never surpassed guidelines values recommended by WHO for either recreational use of water or fish consumption. However, we observed both spatial and temporal changes in MC p