Rainbow trout larvae (Oncorhynchus mykiss) were exposed to bottom sediments collected from 4 sites of the River Po, located close to the springs (UP) of the main Italian river and downstream the confluence of 3 tributaries of its middle reach, the Rivers Ticino (TI), Adda (AD) and Lambro (LA), which drain areas characterized by increasing anthropogenic stress. After 7 days of exposure the trout larvae were examined for both biochemical and histochemical markers and results indicate the presence of a toxicological risk for the fish community of the AD- and particularly LA-downstream stretches. The reach of the River Po receiving the Ticino River was confirmed to be less hazardous in conjunction with the UP area.
Histochemical and biochemical markers in trout larvae exposed to river sediments
1998
Abstract
Rainbow trout larvae (Oncorhynchus mykiss) were exposed to bottom sediments collected from 4 sites of the River Po, located close to the springs (UP) of the main Italian river and downstream the confluence of 3 tributaries of its middle reach, the Rivers Ticino (TI), Adda (AD) and Lambro (LA), which drain areas characterized by increasing anthropogenic stress. After 7 days of exposure the trout larvae were examined for both biochemical and histochemical markers and results indicate the presence of a toxicological risk for the fish community of the AD- and particularly LA-downstream stretches. The reach of the River Po receiving the Ticino River was confirmed to be less hazardous in conjunction with the UP area.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
