Sentences with phrase «cause of algal blooms»

Excess nutrients are a primary cause of algal blooms, which have a number of impacts, including impairing drinking water quality, robbing aquatic life of needed oxygen and closing beaches to swimming.

Not exact matches

The recent outbreak of blue - green algal blooms was the cause of much concern.

Nitrogen discharges are considered a major cause of the brown and red tides and other algal blooms that have wreaked havoc in the bays and other water bodies of Suffolk.

Blaming excess nitrogen in area waters for causing harmful algal blooms, fish kills and beach closures, a panel of scientists and experts said Suffolk County should upgrade septic systems, launch buoys to monitor water quality and use imaging to predict problem spots.

Since the algal species is native to eastern Canada, its recent blooms and rapid proliferation in rivers since 2006 — which have angered anglers looking for pristine waters — have been caused by an environmental trigger, with climate change a likely culprit, said Michelle Lavery, a master's degree student at the Canadian Rivers Institute and lead author of the research, published in theCanadian Journal of Fisheries and Aquatic Sciences.

Excess amounts from human activities often end up in rivers, streams and coastal environments, causing algal blooms, loss of sea grass and low oxygen levels in the water, which can kill large numbers of fish and other organisms.

The new study by Stefanie Lutz, postdoc at the German Research Centre for Geosciences GFZ and at the University of Leeds, shows a 13 per cent reduction of the albedo over the course of one melting season caused by red - pigmented snow algal blooms.

Ryan's research focuses on algal blooms, the rapid and dense growths of plankton that can starve marine organisms of oxygen and cause hypothermia in seabirds.

Upon mixing with the surface layer, the water will cause an increase in the growth of filamentous algae and elevate the risk of blue - green algal blooms.

«It has long been thought that the algal blooms found in Lake Okeechobee, which are caused by pollution such as runoffs from farms, were solely responsible for driving the blooms and their toxins in the St. Lucie Estuary,» said Brian E. Lapointe, Ph.D., lead author of the study and a research professor at FAU Harbor Branch, who recently presented these findings at the ninth U.S. National Harmful Algal Bloom Conferalgal blooms found in Lake Okeechobee, which are caused by pollution such as runoffs from farms, were solely responsible for driving the blooms and their toxins in the St. Lucie Estuary,» said Brian E. Lapointe, Ph.D., lead author of the study and a research professor at FAU Harbor Branch, who recently presented these findings at the ninth U.S. National Harmful Algal Bloom ConferAlgal Bloom Conference.

After ruling out previous causes of such mass deaths — cold weather, disease like morbillivirus and even poisoning by algal bloom — fisheries scientists are left with only one conclusion: «Put all that evidence together and it supports the hypothesis that the oil spill contributed to the increase in deaths,» says veterinarian Stephanie Venn - Watson of the National Marine Mammal Foundation in San Diego.

These nutrients end up in rivers and streams as the result of human activities and can cause algal blooms, loss of seagrass and low oxygen levels, which can lead to large numbers of fish and other organisms dying.

Profligate fertiliser use led to algal blooms and dead zones in waterways; excessive irrigation raised the level of salty groundwater creating saline soils, and pesticide overuse not only caused environmental damage, it back - fired causing pest resistance.

Algal blooms can reduce the ability of fish and other aquatic life to find food and can cause entire populations to leave an area or even die.

The Effects: Environment Algal blooms can reduce the ability of fish and other aquatic life to find food and can cause entire populations to leave an area or even die.

Although this might seem like a good thing, snails excrete a lot of nutrients that might cause algal blooms.

Spatiotemporal changes in the genetic diversity of harmful algal blooms caused by the toxic dinoflagellate

«Basically a little increase [in algal blooms] could cause the greenhouse effect of lakes to increase 5 to 40 percent,» Downing said.

This has a variety of unwholesome consequences, most importantly the increasing number of coastal «dead zones» caused by algal blooms feeding on fertiliser - rich run - off waters.

Phosphorus is the biggest cause of water quality degradation worldwide, causing «dead zones», toxic algal blooms, a loss of biodiversity and increased health risks for the plants, animals and humans that come in contact with polluted waters.