Week one at UNF was great! I learned so much and met
so many amazing people. I absolutely love being surrounded by people who love this
field as much as I do!
The week began with a trip to the St. John’s River
with Carissa King. On the way to SJR, I rode with Carissa and was able to pick
her brain about research and internships. Her advice was truly helpful and I
appreciated it. Once we got onto the river, we examined the anthropogenic and
biophogenic sounds that were present using a hydrophone. As for anthropogenic
sounds, we heard boat motors, propellers, and clanking from ports. As for
biophogenic sounds, we heard an oyster toadfish and tons of snapping shrimp.
Unfortunately, we did not get to hear any bottlenose dolphins. We did get so
see some dolphins though and that was amazing! Also while on the river, we used
instruments such as an YSI, a secchi tube, and a Van Dorn sampler. These
measured variables like salinity, temperature, dissolved oxygen, conductivity, and
turbidity. The water collected from the Van Dorn sampler was taken back to the
lab and tested for chlorophyll-a levels using a fluorimeter.
Here's a picture of me lowering the YSI into the river! |
On Tuesday, we studied the beaches around the St.
Augustine area. These included Marineland, Summer Haven, Matanzas Inlet, Vilano
Beach, and GTMNERR. Marineland had Coquina outcroppings that provided tidal
pool habitats for organisms such as crabs, anemones, snails, barnacles, and limpets.
Summer Haven was a site where dredging was occurring and nesting bird habitats
were destroyed to please home owners nearby. At the St. Augustine Inlet (Vilano
Beach), there were large jetties on either side to maintain the inlet. These
jetties caused sediment accretion on one side and erosion on the other. On the
other hand, we visited Matanzas Inlet, a natural inlet. This inlet was
beautiful and had many sandbars that can migrate. Looking at these two very different
inlets, I learned how to tell between the two (natural and maintained). However,
the most beautiful area we visited on Tuesday was GTMNERR. There was an amazing
view from the platform we climbed up to. GTMNERR is home to one of the few
coastal scrub habitats along Florida’s coast. We learned about the different
types of plants that are usually present such as cabbage palms, saw palmettos,
and sea oats.
Checking out the tidal pools at Marineland! |
Wednesday was probably my favorite day of the week.
Even though I have a huge fear of sharks, I was so excited to handle them!
However, I was a little disappointed that my group only caught one small
scalloped hammerhead and I didn’t really get to handle it at all. I had planned
to tag the shark once he was brought in, but he was not doing well, so, we had
to release him as quickly as possible. We also had a very interesting
experience with getting stuck on oyster beds. Several people had to get out and
push the boat back into deeper waters and there was a lot of voice raising
involved with that. Once we got out though, everything was fine and we headed
to meet Dr. Smith for seining on Shell Bluff. We seined during high tide and
caught mostly herring and striped anchovies. The other group
seined during low tide and had a much more diverse catch.
Removing our catch from the seine! |
I would have to say that Thursday was probably my
least favorite day. As beautiful as the mangrove forests were, I didn’t really
enjoy the trek to reach them. Also, simply measuring them was not very enjoyable
or interesting to me. However, I definitely learned a lot about the black
mangroves. I learned about their salt excretions, how they shade out other
vegetation, and how their solute concentrations are high than those in the
soil.
Friday was sadly our last day and surely the most
stressful day! It was test day! We took a skills test that tested our ability
to use an YSI meter as well as a handheld fluorometer. There was also a written
portion that tested our knowledge of the environments observed throughout the
week. Lastly, we had a very informative and cool presentation by Dr. Ross about
corals. I enjoyed it so much!
Overall, the week at UNF was certainly challenging and exhausting, but it was also such a great learning experience. The hands on field work is amazing and I cannot
wait to begin my week in the Florida Keys!
Such a great group of people! |
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