The effects of aquatic macrophytes on river water
The effect of macrophytes on dissolved nutrients

Overfishing in inland waters reduces biodiversity and threatens health
Threats to freshwater fisheries and associated biodiversity largely unrecognized, authors state

Study Shows Zebra Mussels Can Colonize Sand And Mud
Researchers have found that zebra mussels have built colonies on the sandy and muddy bottom of Lake Erie

Ontario's 'Cottage Country' Lakes See Increase In Taste And Odour-causing Algae
Ninety per cent of the lakes surveyed in a study of Ontario's "cottage country" north of Toronto have seen a significant rise in taste and odour-causing algae

Arctic Rivers Discharge More Freshwater Into Ocean, Reflecting Changes To Hydrologic Cycle
Far northern rivers are discharging increasing amounts of freshwater into the Arctic Ocean

Recovery From Acid Rain 'Much Slower Than Expected'
Acid rain was one of the world's worst pollution problems of the 1970s and 1980s

Lakes And Streams Taking Time To Recover From Acid Rain
Lakes and streams in Maine and other parts of North America are taking more time than expected to recover from the effects of acid rain

Effects of the organophosphorous methyl parathion on the branchial epithelium of a freshwater fish Metynnis roosevelti
The purpose of the study is to use the morphology of the gills of M. roosevelti as indicators of the effects of lethal and sublethal effects of the organophosphorous compound methyl parathion

Temporal and spatial distribution of the ichthyofauna in two streams of the upper Rio Paraná basin
The present study extended these investigations to the eastern bank, treating small lotic bodies of water.

Impacts of the construction of the Port of Suape on phytoplankton in the Ipojuca River estuary (Pernambuco-Brazil)
This paper characterizes the planktonic flora of the estuary of the Ipojuca River after the port construction in comparison with previous observed data

RAPD markers indicate the occurrence of structured populations in a migratory freshwater fish species
These findings suggest the occurrence of a structured population and have important implications for the conservation of the genetic variability of distinct natural P. marggravii stocks.

Sediments In Many Central Valley Streams Contain Toxic Levels Of Pyrethroid Pesticides
A family of pesticides used increasingly nationwide in place of more heavily restricted organophosphate pesticides has accumulated in many creek sediments to levels that are toxic to freshwater bottom dwellers, according to a study.

Natural Radioactivity Used To Determine Seasonal Changes In Groundwater Supply
The discharge of groundwater to coastal waters represents an important source of dissolved nutrients and contaminants that may affect chemical and biological processes in coastal ecosystems.

Water On The Gaza Strip: Time Bomb Or Ray Of Hope?
Beneath the ongoing conflict in the Gaza Strip is a groundwater crisis that's rapidly depriving Palestinians of drinkable water.

Scientists Conduct First Large-Scale Study Of Lake Superior
When the ice creaks, groans, and finally breaks up on Lake Superior next spring, a team of limnologists and oceanographers will launch a five-year study of a dramatic near-shore current in the lake.

Catastrophic Flooding From Ancient Lake May Have Triggered Cold Period
Imagine a lake three times the size of the present-day Lake Ontario breaking through a dam and flooding down the Hudson River Valley past New York City and into the North Atlantic.

Global Wetlands Surveyed From Space
Dotted across varied regions of our planet are the waterlogged landscapes known as wetlands.

New Fish Species Discovered In Midwestern River
A new species of fish discovered , not in the depths of the tropics, but in the "wilds" of western Tennessee.

Study Sheds Light on Mess in Polluted Streams
Downstream from mining sites, a suffocating gel forms in the water of creeks and rivers

How Much Excess Fresh Water Was Added to the North Atlantic in Recent Decades?
Continued Freshening of the North Atlantic Could Slow the Conveyor in the 21st Century