Biology notes

Topics: Adaptation, Trophic level / Pages: 6 (1256 words) / Published: Nov 18th, 2013
Introduction
Last week, my Biology class and I went down to the Port Kembla Rock Platform. While we were there we surveyed five different sectors about the rock platform and recorded them, these included:
1. Surveying the abiotic characteristics of the rock platform
2. Observing the abundance and distribution of the Black Periwinkle (Nerita Atramentosa)
3. Observing the feeding relationships and food webs of the organisms
4. Finding the adaption’s of organisms
5. And Observing the human impacts
We then filled in all of our work sheets and went back to class to discuss everyone’s results.
Aims
For our first sector our aim was to measure all the abiotic characteristics of the rock platform.
In the second sector we were finding the distribution and abundance of the black Periwinkle.
For our third sector our aim was to observe the feeding relationships and food webs of the organisms.
For the fourth sector we had to find the adaption’s of some of the marine life.
And for the fifth sector, our aim was to observe the human impacts.
Hypothesis
Sector 1: Our first measurement and our second measurement of all the different abiotic features will be relatively the same.
Sector 2: The Black Periwinkle will be evenly spread out.
Sector 3: There will only be one tertiary consumer and more than one autotroph
Sector 4: All the organisms found on the rock platform will have adaptations towards surviving in the ocean.
Sector 5: There will be some evidence of human rubbish.
Method
Sector 1: At the rock platform we measured the air temperature and the water temperature using a thermometer, the salinity by using a TDS probe, the wind speed and direction using a anemometer, the relative humidity by using a wet/dry thermometer, light intensity using a light meter and finally the water pH by using universal indicator strips.
We measured all the factors two times and then got an average.
Sector 2: To find the abundance of the Black Periwinkle we did a Quadrat

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