
Current Projects
These are some of our top projects currently underway, either undertaken independently or through collaboration with local and international organizations.
January 2022 - August 2025

Strengthening the recovery of Nassau grouper in Puerto Rico
Funded by NOAA's Endangered Species Act Section 6 program, awarded to the Dept. of Natural & Environmental Resources, Isla Mar has been contracted to carry out the tasks of monitoring the last known Nassau grouper spawning aggregation in Puerto Rico. Other tasks include locating juvenile critical habitat and working with enforcement to educate about closures and species ID.
PI: Harms-Tuohy
Co-PIs: Tuohy, Scharer, Zayas
April 2022 - April 2023

Characterizing the diet of the yellowtail parrotfish with DNA metabarcoding
Funded by NSF, this project uses the genetic technique of DNA metabarcoding to assess and characterize the gut contents of yellowtail parrotfish. This study will give us a better idea of the exact items that this parrotfish species consumes. This project is in collaboration with the University of the Virgin Islands.
PI: Harms-Tuohy
Co-PI: Schizas
March 2021 - June 2023
Investigating the use of recycled glass sand for coral reef restoration
Sponsored by the local brewery, Medalla, our team is working to establish a sustainable solution to the glass bottle waste issue on the island by turning it into useable sand to incorporate into coral reef restoration. This exciting project will plant 400 coral fragments and observe their growth over the course of one year to test the suitability of using the recycled glass sand for this type of restoration purpose. Read more about it here.
PI: Isla Mar and HJR Reefscaping
June 2019 - December 2022

Monitoring and locating nurse shark aggregations in Puerto Rico
Funded by the PR Dept. of Natural and Environmental Resources, this project explores aggregation sites for the locally protected nurse shark. A small population of sharks will be tagged and monitored over two years. This project will set the baseline population estimate for this species in Puerto Rico.
PI: HJR Reefscaping and Isla Mar
new projects in 2022
Review of Hind Bank MCD and Grammanik Bank - for Caribbean Fishery Management Council
Reviewing the Tres Palmas Marine Reserve Studies and Management Plan - for DRNA
Comparing survey methodologies for sampling fish spawning aggregations - Caribbean Fishery Management Council