Vulnerability of selected lakes and streams in the middle Atlantic region to acidification by Dean E Arnold Download PDF EPUB FB2
Get this from a library. Vulnerability of selected lakes and streams in the middle Atlantic region to acidification: a regional survey. [Dean E Arnold; Robert W Light; Eric A Paul; Eastern Energy and Land Use Team.; United States.
Environmental Protection Agency. Office of Research and Development.; U.S. Fish and Wildlife Service.; U.S. Fish and Wildlife. Freshwater becomes acidic when acid inputs surpass the quantity of bases produced in the reservoir through weathering of rocks, or by the reduction of acid anions, like sulfate and nitrate within the lake.
The main reason for freshwater acidification is atmospheric depositions and soil leaching of SO x and NO x. In an acid-sensitive ecosystem, which includes slow-weathering bedrock and. Acidification of surface waters is a high-profile environmental issue in Atlantic Canada. Despite a reduction of emissions of acid-precursors (particularly SO2) by more than 50% in major regions.
Arnold, D.E., Light, R.W. and Paul, E.A.:Vulnerability of Selected Lakes and Streams in the Middle Atlantic Region to Acidification — A Regional Survey, U.S Cited by: The biology and chemistry of three northeastern Pennsylvania lakes was studied from summer through summer to evaluate lakes with different sensitivities to acidification.
At the acidified lake (total alkalinity ≤ µeq L −1) there were fewer phytoplankton and zooplankton species than at the moderately sensitive by: 5. Predicting the vulnerability of streams to episodic acidification and potential effects on aquatic biota in Shenandoah National Park, Virginia: USGS Scientific Investigations Report [Rice, K.
C., Deviney, Frank A., et al.] on *FREE* shipping on qualifying offers. Predicting the vulnerability of streams to episodic acidification and potential effects on aquatic biota in Author: Frank A. Deviney. In New England, an interdisciplinary group named the Northeast Coastal Ocean Acidification Network (NE-CAN) brings together scientists, federal and state agency representatives, resource managers, and seafood industry representatives to coordinate outreach, research, and monitoring efforts across the region.
Similarly, in the Mid-Atlantic. Understanding the vulnerability of different US coastal communities to the likely harmful effects of ocean acidification on shellfisheries should inform the development of effective adaptation Cited by: According to a new assessment of the most vulnerable communities across the United States to ocean acidification, 15 states are at high risk of economic harm.
Here, we present the first local-level vulnerability assess-ment for ocean acidification for an entire nation, adapt-ing a well-established framework and focusing on shelled Vulnerability and adaptation of US shellfisheries to ocean acidification Julia A. Ekstrom1*†, Lisa Suatoni2, Sarah R.
Cooley3, Linwood H. Pendleton4,5, George G. Waldbusser6. Introduction. The ocean has captured between 28 and 34% of the anthropogenic carbon dioxide emitted to the atmosphere between and (Millero,Sabine et al., ).The ensuing increase in ocean CO 2 concentration (Millero,Sabine et al., ) has lead to a reduction of about pH units in ocean surface waters compared to pre-industrial times (Caldeira and Wickett, Cited by: - - - - + Date Water Unfavorable To Shellfish Social Vulnerability Score High Medium High Medium Medium Low.
Researchers suggest, however, that by the middle of the century, reefs will be unable to survive in many regions due to ocean acidification.
Recent studies indicate that ocean acidification could represent an equal or perhaps even greater threat to marine life. Decreases in numbers of fish caused by the acidification of lakes and streams can influence the livelihood of commercial fishers and people involved inthe sport- fishing industry.
Forestry is also affected when trees are damaged by acid precipitation. Acid precipitation can. In conjunction with a similar study in the New England States, lakes and streams in the 9 Middle Atlantic States (New York, New Jersey, Pennsylvania, Maryland, Delaware, Virginia, West.
NOAA Ocean and Great Lakes Acidiﬁcation Research Plan NOAA Ocean Acidiﬁcation Steering Committee: Richard A. Feely (OAR/PMEL) Rik Wanninkhof (OAR/AOML) John Stein (NMFS/NWFSC) Michael F. Sigler (NMFS/AFSC) Elizabeth Jewett (NOS/CSCOR) Felipe Arzayus (OAR/OOER) Dwight K.
Gledhill (OAR/AOML) Editor: Adrienne J. Sutton (OAR/PMEL) Front cover photo: pteropod, Limacina. acidic (Haines et al. ; Whiting and Otto ). Loss of fish populations due to acidification of surface waters has been well documented in the North Atlantic region (as reviewed by Clair and Hindar ; Dennis and Clair ).
In addition, numerous studies have demonstrated that. Whole-lake acidification and recovery experiments conducted at the Experimental Lakes Area (ELA), in northwestern ON showed that recovery of a severely acidified lake (Lake S, pH=) was not as reversible as it was for a moderately acidified lake (LakepH=).Damage to the internal Alkgenerating mechanism of the severely acidified lake did not seem recoverable in the short term.
Global oceans are undergoing acidification and deoxygenation, yet the concurrent effects of low oxygen and acidification on marine fish are unknown. This study quantified the separate and combined effects of low pH and low oxygen on 4 vital early life-history traits (time-to-hatch, hatching success, post-hatch survival, and growth) of 3 ecologically important estuarine fish species.
Acidification and Warmer Temperatures. Ocean acidification has a serious and significant effect on the ability of certain organisms to calcify their shells. Coral reefs and mollusks, like mussels and oysters, are especially at risk, and their vulnerability could have a particularly great impact on the people who depend on fish and seafood.
Coastal communities in 15 states that depend on the $1 billion shelled mollusk industry (primarily oysters and clams) are at long-term economic risk from the increasing threat of ocean.
saturation state as presenting the highest threat of amplifying acidification in coastal zones. Exposure to Hazard. The goal of the exposure component of a vulnerability assessment is to inventory the elements that could be exposed to the hazard. In this case, shellfish are directly exposed to the changing chemistry of the oceans.
Lakes and streams that are generally regarded as acidified are very nutrient poor waters draining unreactive geology. Ample evidence from chemical and biological studies of typical lakes prove that increased acidification has taken place. Diatom shells from lake sediments have allowed the course of acidification to be charted back through time.
Ground-Water Vulnerability to Nitrate Contamination in the Mid-Atlantic Region. by Earl A. Greene (U.S. Geological Survey, Baltimore, MD), Andrew E. LaMotte (U.S. Geological Survey, Baltimore, MD), Kerri-Ann Cullinan (Former graduate student at University of Maryland, Baltimore County; now with PricewaterhouseCoopers, Washington, D.C.), and Elizabeth R.
Smith (U.S. Environmental Protection. Topics in Middle Eastern and African Economies. Vol. 13, September Mediterranean Countries’ Potential Vulnerability to Ocean Acidification. Nathalie HILMI and Alain SAFA.
Ocean acidification (OA) refers to changes in ocean chemistry brought about by increase in atmospheric CO. 2 from combustion of fossil fuels, deforestation and. The present disambiguation page holds the title of a primary topic, and an article needs to be written about it. It is believed to qualify as a broad-concept may be written directly at this page or drafted elsewhere and then moved over here.
Related titles should be described in Acidification, while unrelated titles should be moved to Acidification (disambiguation). Nascent research suggests this could be a problem for the foundation of Great Lakes’ food webs. But little is known about long-term trends of pH levels (reduced pH leads to acidification) in the Great Lakes—which touch eight states and Canada and comprise almost 20 percent of the world’s fresh surface : Erica Moriarty.
Episodic acidification was examined in five mid-Atlantic watersheds representing three physiographic provinces: Coastal Plain, Valley and Ridge, and Blue Ridge.
Each of the watersheds receives a similar loading of atmospheric pollutants (SO42− and NO3−) and is underlain by different bedrock type. The purpose of this research was to quantify and compare the episodic variability in storm Cited by: Freshwater Lakes.
Natural acidification of freshwater environments has been taking place since the last ice age. However, the recent rapid acidification of many of lakes throughout the world can not be attributed to natural causes, but instead to the effects of acidic pollution from the burning of fossil fuels by mankind.
The acidity of water of freshwater lakes and streams is predominantly. An acronym is an abbreviation coined from the initial letter of each successive word in a term or phrase. In general, an acronym made up solely from the first letter of the major words in the expanded form is rendered in all capital letters (NATO from North Atlantic Treaty Organization; an exception would be ASEAN for Association of Southeast Asian Nations).
The pteropod Limacina helicina frequently experiences seasonal exposure to corrosive conditions (Ωar.Summary. This book critically examines the available literature on oceanic acidification, including a historical review of pH and atmospheric CO 2 levels over the millennia; natural and anthropogenic sources of CO 2 to the atmosphere and sea surface; chemical, physical, and biological mode of action; biological effects of acidification to marine plants and animals under laboratory conditions.
The two maps of lakes in Sweden show the present-day (–) acidity of the lakes (pH map) on the one hand, and the acidification status of the lakes (∆pH > ) on the other hand (Fig. 2). Acid lakes with pH Cited by: