| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
7129
|
Pistia stratiotes
|
Environmental Water Quality
|
Observational
|
Field
|
A study in Nigeria found that dense mats of Pistia stratiotes can cause the depletion of dissolved oxygen and more acidic water.
|
Oba Lake, Nigeria
|
42135
|
|
7130
|
Pistia stratiotes
|
Environmental Water Quality
|
Observational
|
Field
|
As a result of poor hydrophytic and algal growth, the respiratory activity of its roots, the decay of dead plants and restriction of wind-generated mixing, dissolved oxygen became markedly depleted and the water more acidic at sites with dense mats of Pistia stratiotes.
|
Volta Lake
|
29732
|
|
7131
|
Pistia stratiotes
|
Environmental Water Quality
|
Observational
|
Field
|
Dissolved oxygen values declined by more than 50% when measured under the P. stratiotes cover, reaching only 2.5 mg/L, a critical value for fish survival.
|
Slovenia
|
29781
|
|
7132
|
Pistia stratiotes
|
Environmental Water Quality
|
Anecdotal
|
N/A
|
Chemical control measures (diquat and carfentrazone) used for Pistia stratiotes also impact water quality.
|
|
31302
|