![]() ![]() Determining modern-day rates of coral reef community calcification relative to ocean chemistry,.This task focused on forecasting and hind-casting the future and past response of coral reef calcification and growth to changes in seawater carbonate chemistry from pre-industrial time to the year 2100 by: ![]() Assessing the resiliency of reefs to climate change and preparing coastal resource managers for the inevitable effects of climate change and rising sea level requires a comprehensive look at past, present, and future coral reef calcification and growth rates in response to elevated atmospheric CO 2 and changing ocean chemistry. Results of these studies indicate that by the year 2100, net sediment dissolution may exceed carbonate production at reef ecosystems in Florida, the Caribbean, and the Pacific resulting in degradation of coral reefs, loss of fish habitat, and increased coastal erosion. 2007) have focused on quantifying reef health in terms of basic processes such as their ability to grow and keep up with rising sea level, and on the response of these processes to changes in seawater chemistry that result from climate change and ocean acidification. USGS coral reef studies (Yates and Halley 2003, 2006a and b, Yates et al. The severity of the impact to coral reefs will depend in part upon the balance between calcification (production of reef structure) and dissolution of reef sediments, and whether or not reef systems will be able to keep up with rising sea level. A 40% decrease in coral reef calcification has been hind-cast between the years 18. Kleypas et al., 1999 Marubini and Atkinson, 1999 Langdon et al., 2000 among many others) indicate that ocean acidification will result in a decrease in rates of calcification by reef organisms, and an increase in dissolution of reef sediments that form the foundation of reef structure. A number of experimental and modeling studies (e.g. This process, called ocean acidification, results in an increase in the acidity of seawater (and a decrease in pH). The Relationship Between Alkalinity and pH.The Submersible Habitat for Analyzing Reef Quality (SHARQ) is a large, underwater incubation chamber used to measure changes in water chemistry resulting from metabolic activity of reef organisms and plants living on the seafloor. (Public domain.) Ocean acidificationĪs carbon dioxide (CO 2) increases in the atmosphere, CO 2 is absorbed by the surface water of the ocean where it combines with water (H 2O) to make a naturally occurring, weak acid called carbonic acid (H 2CO 3). When Do Calcium and Alkalinity Demand Not Exactly Balance?Īn Improved Do-it-Yourself Two-Part Calcium and Alkalinity Supplement SystemĪ Homemade Two-Part Calcium and Alkalinity Additive SystemĬalcium Carbonate as a Supplement (Aragamight Liquid Reactor) Part 4: What Chemicals May Detrimentally AccumulateĪ Simplified Guide to the Relationship Between Calcium, Alkalinity, Magnesium and pH The “How To” Guide to Reef Aquarium Chemistry for Beginners, The "How To" Guide to Reef Aquarium Chemistry for Beginners, Part 3: pH The “How To” Guide to Reef Aquarium Chemistry for Beginners, Part 2: What Chemicals Must be Supplemented The “How To” Guide to Reef Aquarium Chemistry for Beginners, Part 1: The Salt Water Itself The "How To" Guide to Reef Aquarium Chemistry for Beginners How to Select a Calcium and Alkalinity Supplementation Scheme Handy Calculators (I don't claim to have written these, but they are very useful)Ĭalcium Reactor setup calculator (CaCO3/CO2 reactors) In the next few posts are some of the articles published by others on reef chemistry issues. ![]() The first two posts in this thread are lists of some of my articles that relate to reef tank chemistry.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |