0.05). Salinity presented a significative effect on final survival, only. However, there was an interaction between these factors. The highest survival was observed at 4-8 gL-1 salinity and 160-180 mgL-1 CaCO3 (80-65%) and 80-100 mgL-1 CaCO3 (60-70%). Major survival of P. letholepis larvae, is probably due to physiological mechanisms such as increased excretion of sodium by chloride cells proliferation in hard water.]]> 0.05). However, hydro-chemical parameters showed significant seasonal variations (p< 0.05). With the exception of NH3 that was in far excess of the required levels acceptable for aquatic life, in Nabogo and Bunglung sites, the remaining hydro-chemical variables were at tolerable levels necessary for aquatic life. Elevated levels of NH3 and turbidity in these sites were linked to surface run-off from nearby agricultural fields, while turbidity levels showed appreciable levels in Kukobila (395±2.7 NTU) in the wet seasons, compared with the remaining sites. DO levels were lower beyond acceptable limit and partly influenced by surface water temperature. Our results revealed that farming practices and bushfires directly influenced water quality. Consequently, wetlands functional status could degrade further in the near future if current disturbances intensify. Thus managers of wetlands could institute conservation measures, in order to curb future disturbances and enhance.]]>