Friday, July 27, 2012
The final destination, Lovells Island
Today, our destination was Lovells Island. We started to day again at Starbucks and again very early at 8:30 a.m. We took the T-Ferry to Georges Island where we learned the boat to Lovells was cancelled. However it gave us the chance to spend some time in Georges Island which is my favorite one. Then we managed to go to Lovells Island, thanks to the Abigail and its friendly crew.
Lovells was a great island and we were not the only people who had the chance to be there. There were campers enjoying their day. We observed the beach and rocky tidal pools. We saw many species including hermit crabs, barnacles, periwinkles and mussels. The population and variety of species in Lovells were quite higher than Peddocks Island.
There were lots of barnacles on the rocks with 6 plates and grey yellow like color. I am not sure about that they were Northern Rock Barnacles or Little Grey Barnacles. We found many hermit and green crabs. Then we observed periwinkles which were different from those we found in Peddocks Island. According to a research  the periwinkles introduced from Europe to North America mutated and changed because of the different environmental conditions and became more variable in stature, growth, bulk, weight and color patterns. So I think the periwinkles we found were American ones as they were certainly more bulky, lighter and more variable in colors than the Common periwinkles we saw also in Peddocks Island. To be more specific, I can say that they were rough periwinkle and smooth periwinkle.
We observed also terrestrial snail shells on a rock at the beach and found alive ones on the trees. I think they were white lipped snails which are said to be very common in New England woods . And I agree with the common idea that the snail shells were carried by a predator to the rock at the beach.
Bumpus, H.C. (1898). The variations and mutations of the introduced littorina. Zoological Bulletin, 1(5), 247-259.
Morse, E.S. (1867). The land snails of New England. The American Naturalist, 1(1), 5-16.