“Its dried-up canals have been taken over by the Typha australis bulrush, said Asuquo-Obot, who has been doing research on the macrophytic vegetation of large lakes.”

“The biological aspects include descriptions of macrophytic, planktonic and benthic communities, reptiles, fish, marine birds and mammals.”

“In the case of wetlands designed to treat animal waste, system effectiveness may be limited by high ammonia concentrations and inundation, conditions that can adversely affect macrophytic vegetation.”