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Island Bay Research Paper

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On Friday 10th March, our Year 12 Biology class went to Island Bay to gather data on the quantity of rocky shore tide zone species. Gathering this data we used a transect (rope knotted every meter), a quadrat (50cm x 50cm), a meter ruler, a thermometer, and species information cards to help with clarification. My group and I started our measurements from where the water met the rocks and placed our first quadrat there. We recorded the species count and recorded the temperature, then moved three meters up the transect and placed the quadrat down again. We completed this for 48meters from where the water meets the rocks and recorded the data. Our investigation is to chose two species that we collected data on and compare and contrast the evironmental niches of each of those species. I have chosen to research and investigate the species of Chaemosipho columna (the Acorn Barnacles) and the species of Austrolittorina antipodum (the common …show more content…
The pattern of distributions of these species found is a zonation pattern. A zonation pattern is where a species exists in bands showing that different species are dominant at different lengths the further they move away from the water. Some species will exist more confidently than other species so they outcompete each other. Using data collecting using the quadrats and a transect rope, we can predict the distribution of the species depending on how much of the species we see at different lengths. When we were gathering our data, we had to take into consideration the temperature of the water in the quadrat, the light exposure at the time of day (approximately 11:30am), the gradient of the rocks and if there were any rockpools where we were gathering the

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