Today was a bittersweet day as it marked the last full field day for the BIOL 403 students. This field day was dedicated to the search for Lingula reevii in south Kaneohe Bay.
The first stop of the day was revisiting fringing reef B2 and B3 (FRB2 and FRB3) where we dropped off sediment traps on day 4. We also took sediment samples and dropped off temperature loggers at these two sites. Because we were here before, we knew what to expect and that FRB3 was a long swim away from where boats could anchor. So, to make it easier, the Lingula group took an adventurous boat ride into the yacht harbor in order to get closer to the site.
After picking up the sediment trap, we continued our exploration to fringing reef J (FRJ) where the three groups split up to survey the reef for L. reevii. A whopping 4 L. reevii was found here. In addition to looking for those little brachiopods, we took sediment and water samples and placed temperature loggers. This was also a fun new reef to explore with a lot of juvenile fish swimming around the shallow barrier reef.
Next, we went to Lilipuna Pier. Many of you may know this pier, as this is location where boats shuttle people on and off the Coconut Island. Here, we found no L. reevii. Finally, we stopped at Goby Bay, a bay accessible from the Coconut Island and continued looking for Lingula reevii. We were expecting a high abundance of L. reevii here because on day 2, while taking the swim test, Ryan ran into one. So we were happy to find 10 Lingula here. Swimming back to the boat, we were greeted by an adorable porcupine fish at the reef edge.
We finished extra early today to prepare for another field day tomorrow.