Group+1H-

Iodine vs Non Iodine**
 * The coral match!

6/8 Neatness/Organization-No pics? 7/8 Introduction-Could use more info on iodine 8/8 Procedure- 7/8 Data-not all same measures? 0/8 Conclusions- Missing? 28/40 Total

Anya Rozman Michelle Abele Max Schletter Katelyn Walker

Green star polyps are small, bright green polyps connected by a rubbery purple colored mat, more commonly known as GSP. They are open during the day and retract at night and don't mind low light levels, although they will develop brighter colors in higher lighting. Green Star polyps are photosynthetic and don't require feeding. They prefer to be kept out of forceful water flow and prefer water temperatures of between 74 and 84 F. However, Green Star polyps are extremely hardy and aggressive and can survive most reef tank conditions. Despite that, their sting is relatively weak, but their rate of growth can quickly overtake neighbors. Green star polyp is good indicators of water quality and flow.
 * Background**

According to [|one site], submerging the GSP into iodine after cutting is said to improve its lifespan. It is not mentioned anywhere else.

Clavularia viridis Indonesia soft coral
 * Scientific Name**
 * Origin**
 * Classification**


 * Question:** How does dipping a Green Star Polyp into iodine after cutting effect the number of polyps grown after a number of weeks?
 * Hypothesis:** Iodine dip will increase the number of polyps in a GSP sample in seven weeks.
 * Independent variable:** Length of time submerged in iodine solution (five minutes versus none)
 * Dependent variable:** Number of polyps
 * Control:** Polyp mat not submerged in iodine
 * Controlled variables:** Water temperature kept the same for all samples, all polyp mats from same coral colony,


 * Materials**
 * 4 squares of Green Star Polyp mat, 1cm x 1cm
 * 4 cement squares
 * Super glue
 * 1.3 mL of SeaChem Reef Dip© coral disinfectant (iodine)
 * 1000 mL tap water
 * large tank


 * Procedure**
 * 1) Gather materials listed above
 * 2) Combine SeaChem Reef Dip© coral disinfectant (iodine) and water into a beaker and mix
 * 3) Submerge two (2) of the four (4) squares of polyp mat in the solution for five minutes
 * 4) Use super glue to attach all polyp mat squares to their own cement squares
 * 5) Place into large tank into relatively low water flow
 * Many other specimen live in the tank, but since all samples of Green Star Polyp are in the same conditions, the experiment is not void
 * The 80 gallons from the tank are changed biweekly
 * 1) Measure surface area covered weekly.


 * Data**


 * =  ||||||= Iodine ||||||= No Iodine ||
 * =  ||= Trial 1 ||= Trail 2 ||= Trial 3 ||= Trial 1 ||= Trial 2 ||= Trial 3 ||
 * = 10/9/09 ||= 1cm^3 ||= 1cm^3 ||= 1cm^3 ||= 1cm^3 ||= 1cm^3 ||= 1cm^3 ||
 * = 10/14/09 ||= 2 new polyps ||= 1 new polyp ||= 3 new polyps ||= 1 new polyp ||= 1 new polyp ||= 3 new polyps ||
 * = 10/22/09 ||= dying ||= dying ||= dying ||= dying ||= dying ||= dead ||
 * EXPERIMENT RESTARTED DUE TO CORAL DEATH CAUSED BY CONDITION OF PARENT** **COLONY**


 * = Date ||||= Iodine ||||= No Iodine ||
 * =  ||= Trial 1 ||= Trial 2 ||= Trial 1 ||= Trial 2 ||
 * = 10/29/09 ||= 8 polyps ||= 14 polyps ||= 15 polyps ||= 6 polyps ||
 * = 11/4/09 ||= 9 polyps ||= 16polyps ||= 9 polyps ||= 5 polyps ||
 * = 11/12/09 ||= 8 polyps ||= 14 polyps ||= 12 polyps ||= dying ||
 * = 11/19/09 ||= 5 polyps ||= 18 polyps ||= 15 polyps ||= n/a ||
 * = 11/30/09 ||= 9 polyps ||= 24 polyps ||= 24 polyps ||= n/a ||
 * = 12/18/09 ||= 10 polyps ||= 38 polyps ||= 33 polyps ||= n/a ||
 * Conclusions:** **Group 1 The classification of soft coral is known as Green starpoylps. Group 1** **Green star polyps are going well for both iodine and non iodine except for the non iodien they been dead from 11/12/09 to 12/18/09. Looking over the coarls the pass couple of months the have been doing well. Green star polyps are small, bright green polyps connected by a rubbery purple colored mat, they like to open durring the day and like bright lights. A fun fact to know: That the Green Star polyps are photosynthetic and don't require feeding! Before we sarted this project we had to make a Hypothesis on** **Iodine an we said that the dip will increase the number of polyps in a GSP sample in seven weeks. Accroding to the graph it looks like Gruop 1 seems right because the iodine doesn't have any dead polyps and it has large numbers of polyps growing.

Sources:** [] [] [] [] [|http://www.bluezooaquatics.com] http://www.3reef.com/.../**green**-**star**-**polyps**-no-out-54585-2.html http://www.bluezooaquatics.com