Sentences with phrase «of eutrophication»

The effects of eutrophication on carbonate chemistry can exceed that of OA from anthropogenic CO2 by either increasing pH, when enhanced CO2 uptake by primary producers prevails (Borges and Gypens 2010), or by decreasing pH, where enhanced respiratory CO2 release prevails (Cai et al. 2011), a condition often associated with coastal hypoxia (Feely et al. 2010).

These hypoxic areas — virtually uninhabitable for most marine life — are a result of eutrophication, or too many nutrients from fertilizer runoff and sewage discharges finding their way into coastal waters.

Impacts of climate warming upon coastal and marine ecosystems are also likely to intensify the problems of eutrophication and stress on these biological systems (EEA, 2004b; Robinson et al., 2005; SEPA, 2005; SEEG, 2006).

It is a primary cause of eutrophication of surface waters, in which excess nutrients, usually nitrogen or phosphorus, stimulate algae growth.

He's presented research findings based on several analyses he's done that suggest once sucralose levels in a body of water rise above 57 parts per trillion, it's an indicator that the water is experiencing some level of human impact and the onset of eutrophication — nutrient loading that can encourage plant growth and suffocate animal life.

This is a side effect of eutrophication that hasn't been investigated in the Bay.»

The experiment revealed the dynamics of eutrophication.

Not exact matches

The LCA examined the effects of a 1 kilogram industry - average corrugated product manufactured in 2014 on seven environmental impact indicators: global warming potential (greenhouse gas emissions), eutrophication, acidification, smog, ozone depletion, respiratory effects, fossil fuel depletion; and four inventory indicators: water use, water consumption, renewable energy demand, and non-renewable energy demand.

«This symbiosis is very important since the leakage of phosphate from farm fields contributes to harmful eutrophication of rivers, lakes and seas,» says Cornelia Spetea Wiklund, professor at the Department of Biological and Environmental Sciences, University of Gothenburg.

For years scientists have known that nitrogen and phosphorus, which commonly enter freshwater lakes in chemical fertilizers, play a role in eutrophication — the process by which algal blooms, turbidity, and oxygen deficiencies turn a lake into a dead zone, largely devoid of animal life.

Unlike some other species, these tiddlers — of no commercial value — appear to be relatively unaffected by lake eutrophication, bank stabilization and channelization.

This has consequences for climate models, since more loss of carbon dioxide and mineral nitrogen would have a direct bearing on the soil's contribution to greenhouse gases and eutrophication.

1.6 %: estimated proportion of marine fish species (for which trend data exist) with increasing populations, due to improved conditions including better fishing management and decreased eutrophication

26.6 %: estimated proportion of marine fish species (for which trend data exist) that have declining populations, due to unsustainable fishing, habitat degradation, invasive alien species, eutrophication and climate change

This process of rampant algae growth leading to oxygen - starved waters is known as eutrophication.

By the 1950s, a declining mayfly population in the western basin of Lake Erie indicated widespread anthropogenic eutrophication (human activities resulting in more nutrients such as phosphorus in the water, leading in turn to decreased oxygen levels).

The experiment of the Kiel marine biologists shows how local environmental factors such as eutrophication may amplify the effects of global factors such as rising temperatures and ocean acidification.

According to a study conducted by marine biologists of GEOMAR Helmholtz Centre for Ocean Research Kiel and Rostock University within the German research network BIOACID (Biological Impacts of Ocean Acidification), eutrophication — that is already known for its negative effects — and rising seawater temperatures could lead to a decline of the bladder wrack in the Baltic Sea.

But after the Nile perch was introduced — for commercial reasons — in the 1950s, and the lake also experienced substantial eutrophication, about half of the cichlid species became extinct.

However, wetlands and their bird populations are globally threatened by intensified land use and the results of the degradation of water systems, such as overgrowth and eutrophication.

Over the past 50 years, changes in land use and wastewater inputs have led to eutrophication of the lake, with increased turbidity and oxygen depletion in deeper waters.

During the past years, scientists have found out how ocean acidification — in some cases combined to other factors such as rise in temperatures, eutrophication or loss of oxygen — affects isolated species.

Human - accelerated eutrophication (known as cultural eutrophication) can be triggered by inputs of sewage, sludge, fertilizers, or other wastes containing nutrients such as nitrogen and phosphorus.

Ocean acidification, rising temperatures, eutrophication and loss of oxygen: Life in the oceans has to cope with a variety of factors.

Phytoplankton ecology; coastal eutrophication; role of science in formulation of environmental policy; integrated ocean observing systems

Rising temperatures, loss of oxygen, eutrophication, pollution and other drivers happen simultaneously and interact to influence the development of marine organisms and communities.

eutrophication The process by which a body of water becomes full of nutrients, which then stimulates the excessive growth of plants and algae.

This study showed that the eutrophication controlled the variations of Ωarag in Guanabara Bay.

The ammonia is washed away, creating a major environmental issue as it leads to eutrophication of water ways and ultimately enters the atmosphere as nitrogen dioxide, the main greenhouse gas associated with agriculture.

Environmental challenges such as ocean acidification and eutrophication influence the physiology of kelp species.

Therefore, we expect that the biomass accumulation of S. japonica may well increase under future scenarios of ocean acidification and eutrophication.

· Wide - scale deployment of a mix of low - carbon electricity generation technologies, as foreseen in mitigations scenarios such as the IEA's Blue Map Scenarios, helps to stabilize or reduce pollution such as eutrophication, acidification, particulates, photochemical smog, and toxicity.

The main areas covered in this work booklet are: Species Classification Distribution of organisms Sampling Predator prey graphs Adaptations Pyramids of biomass Carbon cycle Water cycle Eutrophication Global warming Food security Sustainable fisheries Microprotein Within the booklet are a range of different activities for students to work through to help them remember the content.

Ocean acidification comes from GHGs, but not eutrophication which is driven primarily by chemical and soil runoff which comes from ignorance of natural systems design and the dysfunctional food system.

However, if one considers the enormous increase of reactive nitrogen in our biosphere, due to the use of synthesized fertilizer and the burning of fossil fuels, its impact is not part of the analysis, even tough this increase shows up in the eutrophication (nutrient enrichment) of open waters all over the world, resulting in excess algae, in some areas causing large algae blooms (as where they are going to hold the sailing regattas during the Olympics), red tides and dead zone, as the 8000 square mile dead zone in the Gulf of Mexico.

Eutrophication by sewage effluent, and / or differential exploitation of shellfish species, for example, may help to explain your observations.

Nitrogen - and phosphorus - driven freshwater and marine eutrophication has major socioeconomic consequences that include lost livelihoods, reduced property values, damage to fisheries, loss of recreational opportunities, and several health risks.

Unlike ground - level O3 or eutrophication, nitrogen and phosphorus are generally not the major agents of risk, but lowering their release to the environment would lessen the multiple stresses that alter ecosystems and affect human well - being.

Beyond the effects on climate discussed below, these include air pollution, acid rain, marine and freshwater eutrophication, biodiversity loss, and the stimulation of some invasive species.

Progress is however markedly slower for eutrophication, which is caused by excess nitrogen deposition resulting from emissions of nitrogen oxides (NOx) and ammonia (NH3).

They report in Environmental Research Letters that they examined 740 different production systems for 90 different foods, to calculate levels of land use, greenhouse gas emissions (GHGs), fossil fuel energy use, the nutrient runoff that leads to eutrophication or «dead zones» in lakes and rivers, and the potential for acidification of the waters.

However, it is an important driver of other environmental impacts including global warming, acidification, eutrophication and resource depletion.

Eutrophication - The process by which a body of water (often shallow) becomes (either naturally or by pollution) rich in dissolved nutrients, with a seasonal deficiency in dissolved oxygen.

But other elements could potentially also contribute to a collapse: an accelerating extinction of animal and plant populations and species, which could lead to a loss of ecosystem services essential for human survival; land degradation and land - use change; a pole - to - pole spread of toxic compounds; ocean acidification and eutrophication (dead zones); worsening of some aspects of the epidemiological environment (factors that make human populations susceptible to infectious diseases); depletion of increasingly scarce resources [6,7], including especially groundwater, which is being overexploited in many key agricultural areas [8]; and resource wars [9].

d) the necessity to assure that the current focus on mitigation does not lead to neglect of other factors influencing the sustainability of agriculture, such as pesticide loads, eutrophication, acidification or soil erosion; and

Specifically, watershed nutrient reduction strategies aimed at preventing reservoir eutrophication may also mitigate both CH4 and N2O emissions (specifically via reduction of P and NO3 — loading).

Oceanic pH is never constant and various continually in accordance with a host of environmental parameters, such as eutrophication, salinity and land - based - effluents, etc, and so you can not lay the blame on CO2 without first eliminating the possibility that a change in pH was not due to some other factor.

In addition to increasing the quantity of organic carbon and reducing the availability of oxygen, eutrophication may also affect the overall quality of organic matter for fueling CH4 - producing archaea.

Because algae grown under nutrient rich conditions tend to be relatively lipid poor, the authors posit that this resource quality feedback reduces the strength of the positive feedback between eutrophication and methane production (West et al. 2015b).

A comparison of CO2 and CH4 fluxes from eutrophic reservoirs suggests that eutrophication does little to change the net carbon balance of reservoirs, but greatly increases the atmospheric radiative forcing caused by these systems through the stimulation of CH4 production (figure 3).