Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Seawater Aquaria for Georgia Coastal Marine Life Marine Science Program Savannah State University Dr. M. Gilligan I. Equipment and materials • A. System – open and closed • B. Filtration – 1. Mechanical (removes particles) – 2. Chemical (buffers) – 2. Biological (microbes) • C. Substrate - pH regulation • D. Water – 1. sea salt mix – 2. natural • E. Temperature and light Every breath you take….. Component Symbol Volume Nitrogen N2 78.084% Oxygen O2 20.947% Argon Ar 0.934% Carbon Dioxide CO2 0.033% Neon Ne 18.2 parts per million Helium He 5.2 parts per million Krypton Kr 1.1 parts per million Sulfur dioxide SO2 1.0 parts per million Methane CH4 2.0 parts per million Hydrogen H2 0.5 parts per million N2O 0.5 parts per million Nitrous Oxide 99.998% Xenon Xe 0.09 parts per million Ozone O3 0.07 parts per million NO2 0.02 parts per million I2 0.01 parts per million Nitrogen dioxide Iodine Carbon monoxide CO trace Ammonia NH3 trace Nitrogen (N) • The nitrogen cycle is complex in part because of the many chemical • • • • • • • forms of N: Organic-N; NO3; NH4; gases N2, N2O, NO + NO2 (=NOx). (NO), Nitric oxide (NO2), Nitrogen dioxide (N2O), Nitrous oxide (N2) diatomic oxygen (NO2) nitrite (NO3) nitrate (NH4) ammonia, (NH3-) ammonium • Accounting - distribution of N in grams times 1015. – – – – – – Rocks and sediments 190,400,120(deep, unavailable) Atmosphere 3,900,000 Ocean 23,348 Soils 460 Land plants 14 land animals 0.2 Nitrogen Pathways and Reactions: • N2 to organic-N; called "N-fixation" (plants and • • • • humans) Organic-N to NH4+ ;"mineralization" (by bacteria and fungi) NH4+ to NO3- , producing NO2 and N2O; "nitrification" (by bacteria) NO3- to N2 , producing N2O ; "denitrification" (by bacteria) NO3- & NH4+ to organic-N; "photosynthesis" (uptake by plants) Eduction pipe lift pump Invented by German mining engineer Carl Loescher in 1797 For tropical reef aquaria II. Setting up and cycling • A. Tank placement • B. Assembly • C. Cycling – http://saltaquarium.about.com/gi/dynamic/off site.htm?zi=1/XJ&sdn=saltaquarium&zu=http %3A%2F%2Freefsources.itgo.com%2Fguide %2Fbiological.html III. Animals and plants • A. How many? • B. What kinds? - Fish, crabs, shrimp, barnacles, oysters, sea shells, anemones, gorgonians, starfish, urchins, worms, sand dollars, algae (sea weeds). Avoid: sea cucumbers, sponges, and large fish. IV. Maintenance • A. Evaporation and water changes • B. Cleaning • C. Feeding • D. Problems and tips – 1. Cloudy water and mortalities – 2. Diseases and copper – 3. Water color VI. Collecting your own specimens • A. Collecting – Temperature, aeration, biomass/vol. • B. Handling and transporting – Containers – dark and insulated VII. Maintaining and feeding • Community tank – No questionable additions – Do not feed for three days – Feed M,W, F only – No uneaten food, dead or decaying matter in tank at all – Return all unhealthy to nature OR have intensive care tank