n.any of several human or animal diseases characterized by dark urine resulting from rapid breakdown of red blood cells

Tropical Blackwater Rivers, Animals, and Mast Fruiting by the Dipterocarpaceae
Invertebrate Productivity in a Subtropical Blackwater River
Fish Communities in Central Amazonian White- and Blackwater Floodplains
Bacterial growth on dissolved organic carbon from a blackwater river.
Organic Matter Dynamics in the Ogeechee River, a Blackwater River in Georgia, USA
Macroinvertebrate Production in a Southeastern United States Blackwater Stream
Ecosystem Metabolism and Turnover of Organic Carbon along a Blackwater River Continuum
Rapid Growth of Snag-Dwelling Chironomids in a Blackwater River: The Influence of Temperature and Discharge
Production Dynamics and Resource Utilization of Snag-Dwelling Mayflies in a Blackwater River
Dissolved organic matter and its optical properties in a blackwater tributary of the upper Orinoco river, Venezuela