Last weeks class was our Seagrass Survey out in Oak Hill. We had a great time and I'm glad we able to do something in the water this week, though it was quite chilly and windy out, hence the wetsuits. We took a short boat trip from Riverbreeze dock to the seagrass beds, we broke up into three groups of about 4 or 5 people and we covered an area of over 200(m). We took data every 10(m) and looked for both drift algae and seagrass. They have been keeping track of the beds here for a long time and it is not at all what it used to be but you can tell that it is starting to come back and the manatees are still grazing so thats a good thing.
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| My group and I counting seagrass |
Annie was working with us and taught us how to properly get our data and how you can tell where the manatees have been grazing. She goes out every few months I believe to collect this data. The visibility wasn't so good so it made it a little difficult at first, you had to wait a few minutes to let everything settle once you got down in the water.
*Questions from previous post*
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| Annie giving us our instructions |
Jason, sec. 310- Yes we did, we measured the total phosphate, pH, and we used a secchi disk which tells us how far down the light goes through the water.
Michelle, Sec. 201- Some ways to limit sources of error... thats a great question, I would say that some things you just can't help so just be prepared for that. Yes, we do account for the errors in our data as well.
Garth: Section 201- HI, ALEX! What factors contribute to poor visibility? Is there anyway this situation can be avoided when collecting data in the field?
ReplyDeleteCasie Sec 201- Hey Alex! I know table one has had a blast this semester!! I have to ask :) after taking this course has it helped you narrow your focus in your degree path?
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