Biology Research Paper

852 Words4 Pages
1. Introduction & Hypothesis Introduction: In conducting research I observed stimulation on a tide pool off the Washington State coast in the 1960’s. As the coast became more ecologically populated as the years went on, the competitiveness of species became very tough. (Keystone Predator Workbook) Since I enjoy being on the coast and observing the different kinds of algae and species I thought I would look closer into studying about them. While I was doing research, I identified the species I found. The primary producers were Nori Seaweed, Black Pine, and Coral Weed. The sessile consumers consisted of Mussels, Acorn Barnacles, and Goose Neck Barnacles. The mobile consumers happen to be Whelks, Chiton, Starfish, and Green Crabs and they compete to eat the same food. The Green Crab needed to eat Mussels to stay alive; therefore reducing Mussels would not favor the prey of marine invertebrates including snails, crabs, and starfish. (Keystone Predator Workbook) Hypothesis: While studying the tide pool off the coast of Washington State, I noticed that the population contained a lot of Coral Weed. On most coasts, there are more Coral Weed rather than Black Pine, etc. The Green Crab competes with Whelks, Chiton, and Starfish. I wondered if there was a dominant mobile consumer since they all consumed Coral Weed. I HYPOTHESIZE THAT AN INCREASE IN GREEN CRAB WILL CAUSE AN INCREASE IN THE CORAL WEED. Coral Weed doesn’t need mobile consumers for them to survive so I’m curious as to if the two are related and if they work together in the ecosystem. 2. Methods Methods: I HYPOTHESIZE THAT AN INCREASE IN GREEN CRAB WILL CAUSE AN INCREASE IN THE CORAL WEED. My independent variable is the green crab, which I added to the tide pool off the Washington State coast. My dependent variable was the coral weed because it is affected by the green crab. I started my experiment at

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