Group+1H

 By Matt Abell, Mariah Bosse, Josh Gosselin, and Benjamin Trickett
 * What Kind of Light Does Coral Grow Fastest In? **



 Scientific Name:** ** Pachydavularia Violacea Family: Clavulariidae ** **Habitat: Indo-Pacific ** **Living Temperature:** ** 72-78 degrees Fahrenheit Light: Natural and Artificial Tentacles per Polyp: Eight  __ Materials Needed: __    ·  Six colonies of Green Star Polyps nearly equal in size.   ·  Coral Glue  <span style="font-size: 10pt; font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;"> ·  <span style="font-size: 10pt; background: white; color: #fd0d9b; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';">Natural, Artificial, and Artificial & Natural light tanks. <span style="font-size: 10pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> <span style="font-size: 10pt; font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;"> ·  <span style="font-size: 10pt; background: white; color: #fd0d9b; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';">Razor (To carve in group symbol and colony number.) <span style="font-size: 10pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> <span style="font-size: 10pt; font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;"> ·  <span style="font-size: 10pt; background: white; color: #fd0d9b; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';">Triangular Clay plugs <span style="font-size: 10pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> <span style="font-size: 10pt; font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;"> ·  <span style="font-size: 10pt; background: white; color: #fd0d9b; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';">Glass dish (For placing coral while collecting data.) <span style="font-size: 10pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> ** <span style="font-size: 12pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **To answer our question we'll put six different colonies under three different types of light; natural light, artificial light, natural light and artificial light. We'll need to cut our coral into six separate pieces and put them each in different tanks. To find out how light effects coral growth, we will take note of changes in our coral colonies. We will record number of polyps.** <span style="font-size: 12pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> <span style="font-size: 12pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> <span style="font-size: 12pt; font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';">**During class we placed our coral colonies on clay plugs and put two in each of 3 different tanks (natural and artificial light, natural light, and artificial light) of our choice.** __**October 21:**__ __October 27:__ ****<span style="color: #7030a0; font-family: 'Arial','sans-serif';">Colony number six was still missing, so we decided that one of us would stay after class and put another colony on a plug to put in the natural light tank. When I (Benjamin) was back in the tank room I discovered that our colony # 1 had fallen off its clay plug. So one of us stayed after class and put two new colonies on clay plugs. The new # 6 colony has 19 polyps and was placed in the artificial light tank. The new # 1 colony has 17 polyps and was placed in the Natural and Artificial light tank. Hopefully we will be able to use data from these. **
 * Common Name:** ** Green Star Polyp
 * __October 14:__**
 * We could not find our number six coral colony, but we collected data and designated tanks for each colony.**
 * <span style="color: #7030a0; font-family: 'Arial','sans-serif';">

In comparison to the rest of our data, Coral colony number 6 is growing the best under its artificial light, whilst Coral colony number 5 is struggling. They were both placed in the same tank with artificial light, so the huge difference in polyps is strange. **
 * __December 1:__

__** Our Data: **__
Oct 21: Coral 1: 12 polyps Coral 2: 10 polyps Coral 3: 12 polyps Coral 4: 15 polyps Coral 5: 12 polyps Coral 6: Missing

Oct 27: Coral 1: 13 polyps Coral 2: 11 polyps Coral 3: 14 polyps Coral 4: 19 polyps Coral 5: 15 polyps Coral 6: Missing

Nov 3: Coral 1: 20 polyps Coral 2: missing Coral 3: Missing Coral 4: 19 polyps Coral 5: 16 polyps Coral 6: 13 polyps

Nov 12: Coral 1: n/a Coral 2: 12 polyps Coral 3: 13 polyps Coral 4: 13 polyps Coral 5: 8 polyps Coral 6: 14 polyps

Nov 17: Coral 1: Dead? Coral 2: 13 polyps Coral 3: 18 polyps Coral 4: 16 polyps (8 sprouted) Coral 5: 2 polyps Coral 6: 18 polyps

Dec 1: Coral 1: Dead Coral 2: 20 polyps Coral 3: 17 polyps Coral 4: 16 polyps Coral 5: 10 polyps Coral 6: 24 polyps


 * The Following Clip Shows the Cutting of Green Star Polyps:**

media type="youtube" key="RI4bEyWDSZk&hl=en&fs=1" height="344" width="425"<span style="color: rgb(0,255,206);">

http://www.peteducation.com/article.cfm?cls=16&cat=1931&articleid=2375