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According to the Mauna Loa Observatory, Carbon Dioxide levels have risen from 1959 to 2007

The Effects of Iron (II) Sulfate on Growth and Carbon Dioxide Sequestration in Thalassiosira pseudonana and Phaeodactylum tricornutum

mari-jefferson
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According to the Mauna Loa Observatory, Carbon Dioxide levels have risen from 1959 to 2007

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  1. The Effects of Iron (II) Sulfate on Growth and Carbon Dioxide Sequestration in Thalassiosirapseudonana and Phaeodactylumtricornutum Over the past 50 years, the Mauna Loa Observatory in Hawaii has observed increasing rates of CO2emmission. The CO2 increase in 1959 was 0.95 ppm/yr, whereas in 2007 the rate of CO2 increase was 2.14ppm/yr. (Tans, 2008) In Martin’s (1993) experiment, FeSO4 was added to an area of the Pacific Ocean with minimal algae growth and exponential growth was observed. In this experiment algae is grown in 2-liter polyethylene terephthalate bottles to prevent contamination by trace elements in glass (Martin, 1982). Thalassiosirapseudonana and Phaeodactylumtricornutum used as model organisms for this experiment due to previous extensive research on these organisms. FeSO4 is added to the algae medium to make the media a 1.44µM solution of iron. (Coale, 2008) Data will be collected using a PASCO GLX Explorer to measure the CO2 concentration and pH of the media. Photosynthesis • According to the Mauna Loa Observatory, Carbon Dioxide levels have risen from 1959 to 2007 • Changes in Carbon Dioxide are synchronized with the changes in Temperature (Hied, 1996) • Chlorosis was a disorder developed when plants grow with an iron deficiency (Stockhardt, 1882) • Iron Experiments were ran in HNLC regions (High Nutrients, Low Chlorophyll) • SoFEX was an experiment which use the appropriate number of iron by using 1 nanomol per liter in a 15 x 15 kilometer square region (Coale, 2002) Purpose The purpose of this experiment is to examine the effects that iron fertilization has upon the photosynthetic methods of different types of phytoplankton Hypothesis 1(a) Growth of Phaeodactylumtricornutum will be significantly different when FeSO4 is added 1(n) There will be no significant difference in growth of Phaeodactylumtricornutum when FeSO4 is added 2(a) Growth of Thalassiosirapseudonana will be significantly different when FeSO4 is added 2 (n) There will be no significant difference in growth of Thasassiosiriapseudonana when FeSO4 is added

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