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Estuario Weekly Update

An estuarine greeting! Through our weekly update, we inform residents and friends of the San Juan Bay estuary watershed communities about events, projects, activities, and training opportunities.

Employment Opportunities


Estuario seeks applications for an experienced, full-time Project Officer responsible for overseeing the successful project management and operations of Bipartisan Infrastructure Act (BIL) projects, including, but not limited to, water quality restoration, blue/green infrastructure, and climate/coastal resilience. See the listing at:


The Estuario Project Coordinator – Citizen Science Certification Program will be responsible for training citizens in the Coastal Resilience module of the Estuario Citizen Science Certification Program. See the listing, in:

2,200 mangroves sown as part of Estuario's certification for citizen scientists

On Saturday, April 22, 2023, International Mother Earth Day, a group of volunteers celebrated by planting 2,200 mangrove specimens in the Jobos beach mangrove, Isabela.
See the photo gallery, here.

Certification for citizen scientists

Below are the thematic workshops and field trips scheduled as part of our certification for citizen scientists:

Introductory workshops:

During the month of May, we will be conducting a new round of introductory workshops for the thematic modules of water quality, participatory bird censuses, characterization and reduction of microplastics, and coastal resilience.

  • May 3: Introduction to Water Quality Monitoring – with Eliezer Nieves Rodríguez
  • May 10: Introduction to Participatory Bird Censuses – with Eliezer Nieves Rodríguez
  • May 17: Introduction to Microplastics and Other Aquatic Debris – with Eliezer Nieves Rodríguez
  • May 24: Introduction to Coastal Resilience – with Patria Aponte Marcano

All workshops will be held from 7:00 p.m. to 8:00 p.m., virtually via Zoom.

Thematic module on coastal resilience:

In addition to the introductory workshop for the thematic module of coastal resilience, we have the following workshops and field trips:

  • May 2: Thematic workshop—Coral Reef Ecological Assessment; 7:00 p.m. – 8:00 p.m. via Zoom
  • May 6: Field trip—monitoring coral communities; 8:00 a.m. – 12:00 p.m., location will be shared upon registration.
  • May 13: Field trip—red mangrove planting: 8:00 a.m. – 12:00 p.m., in Isabela
  • May 30: Thematic workshop—Ecological Restoration with Red Mangrove Planting; 7:00 p.m. – 8:00 p.m. via Zoom.

Sign up today! View all events and additional information about the certification process and thematic modules, in

Family day trip at the Condado Lagoon Natural Estuarine Reserve

Our family day trip at the Jaime Benítez Park is back! On Saturday, May 6, 2023, don’t miss the following activities scheduled in honor of mom and for the whole family:

  • 12:00 p.m. – Our information table opens
  • 2:30 p.m. – Estuarine games for kids: Learn through low-impact games for kids, while mom enjoys the macramé workshop.
  • 3:00 p.m. – Macramé workshop for mom: Come and learn to make crafts in macramé, we will make key chains and bookmarks.
  • 4:00 p.m. – Pilates class for mom: Enjoy these mind-and-body controlled exercises, aimed especially at mom. Don’t forget to bring your mat.
  • 5:00 p.m. – DJ Kids—Sunset Silent Disco Party: Ecological and conscious event, which teaches us different ways to enjoy natural areas in a healthy way. Come and enjoy the talent of these young DJs. You will need to register to get your headphones, it will require an ID. Bring your reusable bottle.
  • 7:00 p.m. – Estuary Cinema Presents: Dune (2021)

Las actividades están abiertas a todo el público y son libres de costo. Puedes confirmar tu asistencia al pasadía familiar para recibir actualizaciones e información adicional, en ¡Les esperamos!

Cine del Estuario

After the family day trip, Cine del Estuario presents: Dune (2021), at 7:00 p.m. in the Jaime Benítez Park of the Condado Lagoon Natural Estuarine Reserve. Bring your blanket or chair!

Weekly Water Quality Monitoring

Evaluation conducted on Thursday, April 27, 2023. We have a RED flag for the Condado Lagoon Natural Estuarine Reserve. Although the calculations present a measurement below the water quality parameter for enterococci (70 CFU/100mL), we recommend avoiding the water since four of the five stations scored high bacteriological counts.

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