After my disaster last week, I did this weigh and measure by hand. So, rather than putting my figures directly into Excel, I wrote them down on a post it note. It took longer, but after loosing all that data, I preferred to take the time. (Honestly I am still upset about loosing that data. It really isn't imperative to the success of my project, but I would have preferred to have complete data.)
I was pretty happy with this week because the oysters are really starting to grow. Obviously, since I do not have last week's data, I cannot say how much they grew in the week, but I am guessing anywhere from 0.3-0.5 grams and about 0.5mm. From two weeks ago, there is a 0.8 gram difference in weight and 0.91 mm difference in length, which is also really great. (I am hoping to graph the progression of their growth for my presentation.)
Here are some things I noticed about they oysters during this week's weight and measure. First of all there were no dead oysters. They all survived from last week, which was expected, but still gratifying to see. There was some growth around the exterior of the shell (length). This is the growth I had been worried about last week, so I was really glad to see it. Of course now that the oysters are putting on growth lengthwise the way I wanted, I am now worried that they are laying on too much shell and not enough belly. I dropped a couple of them and they sounded decidedly solid. I also noticed that there were several shrimp larvae jumping around the table that had been in the bags with the oysters. (I am not actually positive they were shrimp larvae, but for my own sake I'm going to just believe that is what they were.) Aside from the shrimp larvae, there were small bug looking things that were hiding in the slime of the oyster. I only discovered them, because I was trying to scrape the slime off of an oyster and about 20 of them came scuttling out. It was as though I had poked an ant hill. Needless to say it was absolutely disgusting.
No comments:
Post a Comment