The quantitative benthic samples were collected with a Petersen’s grab of medium size (17.0x16.5 cm) at six sites in each reservoir, at different depths (in the range from 0.5 to 30 m) and different substrate types
The quantitativebenthic samples were collected with a Petersen’sgrab of medium size (17.0x16.5 cm) at six sites ineach reservoir, at different depths (in the range from0.5 to 30 m) and different substrate types
The quantitative benthic samples were collected with a Petersen’s grab of medium size (17.0x16.5 cm) at six sites in each reservoir, at different depths (in the range from 0.5 to 30 m) and different substrate types