PPT-Acidification Tolerance in Aquatic Organisms

Cluster 3 Living Oceans and Global Climate Change Elana Sanford Sona Trika Joey Uy Michelle Hines BACKGROUND CO 2 emissions amp the keeling curve Trend in decreasing pH Carbonic acid Calcifying organisms. Acidification Tolerance of Aquatic Organisms . Analysis. Conclusion & Applications. Data & Observations. Introduction. Different species respond to low levels of pH differently: some of the test subjects were . Carbon Dioxide and our Oceans. What is Ocean Acidification and how does it affect the me?. http://youtu.be/aG3n1fAa7vk. “. Acid Test” 3 Minute intro video clip. OR. . The Natural Resources Defense Council (NRDC) documentary explores ocean acidification, which is challenging marine life on a path not seen for tens of millions of years. The film, featuring Sigourney Weaver, originally aired on Discovery Planet Green.. Karst. Region Streams. Macroinvertebrate. Ecology & . Bioassessments. Natural History of Stream Invertebrates: Making Sense of Biotic Indices. Segment 2 Outline. Roles and types of aquatic . macroinvertebrates. Alexandria Boehm . Professor of Civil & Environmental Engineering. Senior Fellow Woods Institute of the Environment. Stanford University. Bruce Steele, commercial sea urchin fisherman on ocean acidification:. A presentation . shown. at the . Comenius. meeting in Uddevalla 2011-10-14. Lake in Svartedalen, . south. . of. Uddevalla, . heavily. . affected. by . acidification. .. Connection . between. . Abiotic Elements That Affect Our Water. Water Chemistry. Healthy aquatic ecosystems depend upon many factors. One important factor is the chemical balance present in the ecosystem.. Aquatic ecosystems are susceptible to many chemical changes. Usually if the chemistry of a “healthy” ecosystem changes, signs of this change will include sensitive organisms quickly declining in number or disappearing. These types of organisms are called . Doney . Woods . Hole . Oceanographic Institution. . Rising Atmospheric CO. 2. IPCC AR5 . WG1 Chap. 6. Doney & . Schimel. Ann. Rev. . Env. . & Res. 2007. Warm . interglacial. Cold . glacial. Aquatic ecosystems are primarily determined by the ecosystem’s . salinity. . Salinity refers to the dissolved salt content of the water.. Aquatic ecosystems are divided into freshwater and marine ecosystems.. methylation. . . Methylation. is how mercury changes into organic forms and this happens under water.. Introduction. The information our group researched is important because it tells us whether terrestrial or aquatic organisms have more mercury. Mercury can also kill many people. According to the EPA, mercury can be found in air, water and soil. Mercury is everywhere and it gets there by emissions from vehicles and emissions from factories, but the main ways are through . Basic Chemical Properties of Nickel. This metal doesn’t oxidize very quickly. There are a few common oxidation states. +2 Ni, +1 Ni, and +3 Ni. The most common:+2 Ni. Basic Physical Properties of Nickel. Topography dictates water flow. Middle South Platte-Cherry Creek . Watershed. https://cfpub.epa.gov/surf/huc.cfm?huc_code=10190003. Land Use affects Water Quality:. Turbidity . (clarity). pH. Temperature (change). What is pH?. pH is a measurement of the hydrogen ion concentration of a solution. A pH test is used to determine if a solution is acidic, neutral, or alkaline (basic. ).. pH level.  . <7. Acidic. . What is ocean acidification and why is it happening?. Ocean acidification is when oceans are becoming more acidic because of too much carbon dioxide dissolved in the ocean. . 2. Identify two human actives that contribute to ocean acidification. . some . Understanding of the aquatic ecosystem. is necessary before . fisheries . managers or pond. owners can begin to understand changes in . fish. populations. . . The aquatic ecosystem is a complex .