Tuesday, June 9, we explored three
different sites, and we got to survey the first site, a sea grass bed called
Old Dan Bank on the bay side of the Keys. It was a beautiful sunny morning with
scattered cloud coverage at 9:20 am and low tide. The current was the strongest
out of all the sites we visited. Echinoderms were commonly seen, where as fish
were sparse. The site was dominated by sea grasses and algae, which provided a
great nursery for juvenile and other small fishes. Thalassia and Halimeda
covered the sandy bottom and corals were dispersed throughout the ecosystem. Long
tubules that resembled thick fishing line covered the sandy bottom, which we
later learned were the extensions of a polychaete, the spaghetti worm. As you
approached the long tubules, the spaghetti worm would retract quickly, which
kept us very entertained. Old Dan Bank provided a great environment to apply
our knowledge from the classroom. We were able to identify all of the algae,
sea grasses, and corals that were present at this site. Overall, Old Dan Bank was a great learning experience for all of us.
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