12
Nahlik AM, Mitsch WJ (2006) Tropical treatment wetlands
dominated by free-fl oating macrophytes for water quality improvement in Costa Rica. Ecol Eng 28:246–257
Nichols SA (1991) The interaction between biology and
the management of aquatic macrophytes. Aquat Bot
41:225–252
Palmer MAS, Bell SL (1992) Butterfi eld I. A botanical
classifi cation of standing water in Britain: applications
for conservation and monitoring. Aquat Conserv Mar
Freshw Ecosyst 2:125–143
Srivastava J, Gupta A, Chandra H (2008) Managing water
quality with aquatic macrophytes. Rev Environ Sci
Biotechnol 7:255–266
UNEP-DEWA (2004) Freshwater in Europe. Facts fi gures
and maps. Division of Early Warning and Assessment
(DEWA), United Nations Environment Programme,
Geneva, 6, pp 1–5
Wetzel RG (2001) Limnology: lake and river ecosystems.
Academic, San Diego, 998 p
K.A. Sujana et al.
Nahlik AM, Mitsch WJ (2006) Tropical treatment wetlands
dominated by free-fl oating macrophytes for water quality improvement in Costa Rica. Ecol Eng 28:246–257
Nichols SA (1991) The interaction between biology and
the management of aquatic macrophytes. Aquat Bot
41:225–252
Palmer MAS, Bell SL (1992) Butterfi eld I. A botanical
classifi cation of standing water in Britain: applications
for conservation and monitoring. Aquat Conserv Mar
Freshw Ecosyst 2:125–143
Srivastava J, Gupta A, Chandra H (2008) Managing water
quality with aquatic macrophytes. Rev Environ Sci
Biotechnol 7:255–266
UNEP-DEWA (2004) Freshwater in Europe. Facts fi gures
and maps. Division of Early Warning and Assessment
(DEWA), United Nations Environment Programme,
Geneva, 6, pp 1–5
Wetzel RG (2001) Limnology: lake and river ecosystems.
Academic, San Diego, 998 p
K.A. Sujana et al.