The Lawrence University Marine Program has studied reefs in the Bahamas, Jamaica and Cayman Islands over the years. However, LUMP has studied the reefs and island habitats of Grand Cayman, BWI most extensively, beginning in 1980 (Click here to see a Map of the Caribbean ). Every other spring a small group of students and faculty (maximum of 16 students and 2 faculty) spend two weeks living and studying the diverse marine habitats of Grand Cayman. Prior to the the trip, students spend two weeks learning about coral reef ecosystems, ecology, and human effects on reef environments. Students also must learn to reliably identify the major organisms they will encounter, so they are are tested on their ability to identify over fifty reef fish, more than sixty reef invertebrates, and over 25 coral species (Visit the Reef Fish Image Gallery and the Reef Invertebrate Image Gallery ). Additionally, students select a marine ecology project that is conducted with 3 or 4 other students while on the island. By the time they arrive on Grand Cayman, the students are ready to fully appreciate the complex reef environments of Grand Cayman, and collect some real data on coral reef ecology.
While on the island the group lives in rental houses or villas, using mini vans for transportation to the various shore diving sites around the island (Click here to see a Map of Grand Cayman). Students and faculty use SCUBA techniques to collect data on coral and fish diversity, typically at 8-10 different locations. At each site, dive buddy teams extend 10m long plastic chains above sections of the reef so that the faculty members can videotape transects of the coral. The group analyzes the video recordings after returning to Lawrence, providing the ecological data for the habitat analysis of the reefs (click here to see the LUMP 2000 Coral Diversity Data ).
In addition to comparing coral abundance and diversity on the various reefs, students also collect data on reef fish diversity. We employ the techniques and pre-printed forms provided for this type of study by the Reef Environmental Education Foundation, and then share our data with that organization after our trip. Students are expected to prepare a formal report for the course which analyzes the coral, fish and other invertebrate data, compares the different habitats examined, and places the data into the context of factors possibly driving the observed patterns such as wave stress, run-off, shoreline development, fishing, and recreational diving pressure. The data are also used in the LUMP long-term study of changes in the reef environments of Grand Cayman over the past 20 years, providing a different time scale over which to consider the differences between each of the sites examined.