Methods for water control, 2: [Special programs]

acidez acidity age agua superficial aguas costeras ambiente bentico benthic environment biomasa biomass biomasse blood bone diseases chaulage coastal waters cours d'eau cursos de agua data analysis data collection eau superficielle edad encalado enfermedades de los peces equipment equipo fish diseases fishes growth rate lac lagos lakes liming maladie des poissons milieu benthique osteopathie peces plancton plankton poisson (animal) pollution control pollution de l'eau population density remote sensing rivers sang sangre sediment sediment traps sedimento suecia surface water sweden taux de croissance water pollution zooplankton