- Caribbean Fishery Management Council
- Regional fishery management council tasked with conserving, restoring and managing the United States Caribbean fishery resources. Presents outreach and education program overview, discussion of fishery management plans, list of advisory bodies, and project reports.
- Medioambiente PR
- Features a collection of environmental articles, laws and links.
- National Astronomy and Ionosphere Center (NAIC)- Arecibo Observatory
- Research center involved in the fields of astronomy, planetary studies, and space and atmospheric sciences. Contains information about Arecibo Observatory, research project overviews, visitors information, and resources for radio astronomy, planetary radar and atmospheric sciences.
- Puerto Rico Water Resources and Environmental Research Institute
- Dedicated to the investigation and development of water resources in Puerto Rico. Includes a director's message, projects, publications, and news.
|