freshwater organism

Among freshwater organisms, fish appear to be the most sensitive species.

It was founded in 1950 and specializes in freshwater organisms.

There is concern about the way cylindrospermopsin bioaccumulates in freshwater organisms.

In the studies with the freshwater organisms, the water hardness for five of the six laboratories ranged between 36 and 75 mg/L.

In such a context stream capture is an important factor affecting the evolution and distribution of freshwater organisms.

Methods are presented in this manual for three species of freshwater organisms from three phylogenetic groups.

Lead is also highly toxic to freshwater organisms and to humans if the water is used as drinking water.

Freshwater used for irrigation purposes often absorb levels of salt that are harmful to freshwater organisms.

Organisms in marine ecosystems tolerate salinity, while many freshwater organisms are intolerant of salt.

The fossil record of freshwater organisms is typically poor, and so few fossils of freshwater crabs have been found.

This can destroy these water bodies as habitats for freshwater organisms and sources of drinking water for towns and cities.

Biologists said the discovery of the vent life could afford a tremendous opportunity to study the evolution of freshwater organisms in isolation over millions of years.

I see from UN statistics that there is a danger of 54% of freshwater organisms becoming extinct in the European Union.

Newcomb's snail is the first and only freshwater organism found in Hawai'i listed under Federal and State law as threatened.

Bowengriphus is a freshwater organism known from Late Permian deposits in Australia that reached about 15 cm in length.

Not all species that possess a CV are freshwater organisms; some marine and even soil microorganisms also have a CV.

Copper is acutely toxic to many freshwater organisms, especially algae, at very low concentrations and significant concentration in river water may have serious adverse effects on the local ecology.

For freshwater organisms, landscapes are divided naturally into discrete drainage basins by watersheds, episodically isolated and reunited by erosional processes.

This test uses a freshwater organism (the adult Fat Head Minnow) as an indicator of estrogenic activity (feminization), and employs quantitative-PCR.

Most freshwater organisms are stenohaline, and will die in seawater, and similarly most marine organisms are stenohaline, and cannot live in fresh water.

Since these vesicles fuse with the central contractile vacuole, which expels the water, ions end up being removed from the cell, which is not beneficial for a freshwater organism.

The best option at the moment, say government ballast experts, is to require all ships entering the seaway to flush their ballast tanks with saltwater in mid-ocean to kill or expel unwanted freshwater organisms.

Other scientists, including Michael Oppenheimer of the Environmental Defense Fund, said that a wide body of research that shows that freshwater organisms show serious reaction when the pH level is 6, or 10 times less acidic than the benchmark chosen in the report.

Nitrogen saturation of watersheds contributes to environmental problems such as reduced drinking water quality, nitrateinduced toxic effects on freshwater organisms, increased soil acidification and aluminum mobility, increased emissions from soil of nitrogenous greenhouse trace gases, reduction of methane consumption in soil, and forest decline and reduced productivity.