Environmentalists have expressed concern over the fast dropping water levels in Lake Naivasha.

Speaking to the Star, Lake Naivasha Boats Association chairman David Kilo said the Lake's levels have dropped by over a feet and the shores have receded by over ten meters in the last one month.

He said this is due to low rainfall levels in the catchment area and harsh weather conditions around Naivasha.

"The lake's level rose to the highest it has been in the last 30 years but has now changed due to harsh weather conditions that include very strong winds and lack of rainfall in the Lake's catchment areas," he said.

Kilo was however optimistic that the lake would gain back its levels once the expected long rains begin saying the Lake's biggest problem is the hyacinth that "seems to increase on a daily basis" and makes navigation on the Lake very difficult.

His sentiments were echoed by the Naivasha district fisheries officer Nicholas Kagundu who said that a drop in water levels meant a drop in fish population.

Kagundu said though the Lake levels are dropping gradually, they will eventually change once the weather becomes favourable.

He however admitted that hyacinth is much more pressing menace that's affecting fishing and navigation of the Lake.