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Report A Grouper Sighting

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Image of a Nassau Grouper

Key Information 

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Essential Fish Habitat

Learn about the importance of the habitats in Puerto Rico that groupers use for their lifecycle.
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Decending Device

Learn about how to release caught groupers using a fish descending device and find out where to request your own!
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Free Grouper Guide

Are you a fisher? Send us a message to request your free Grouper Guide. 
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Popular Groupers

  • Image of  a Nassau Grouper

    Nassau (Epinephelus striatus)

    Local Name: Mero cherna

    Regulations:

    The capture, possession, and sale of this grouper is illegal year around!

  • Image of a Goliath Grouper

    Goliath (Epinephelus itajara)

    Local Name: Mero batata

    Regulations:

    The capture, possession, and sale of this grouper is illegal year around!

  • Image of a Red Hind Grouper

    Red Hind (Epinephelus guttatus)

    Local Name: Mero cabrilla

    Regulations:

    The capture, possession, and sale of this grouper is illegal December 1st - February 28th / 29th in PR and West EEZ.

  • Image of a Yellow Fin Grouper

    Yellowfin (Mycteroperca venenosa)

    Local Name: Guajil aleta amarilla

    Regulations:

    The capture, possession, and sale of this grouper is illegal February 1st - April 30th in PR and EEZ.

Critical Habitat Locations In Puerto Rico

Below is a map of critical habitat locations in Puerto Rico that the Nassau grouper relies on for its lifecycle.
Hover your mouse over one of the green areas to learn more about that critical habitat. Additional information Click Here.

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Vieques: Very shallow reef areas (sometimes as shallow as ~2 m) around Vieques act as important juvenile habitats. Groupers need these areas for early growth, relying on dense habitat (like seagrass and reefs) to hide, feed, and survive their most vulnerable life stages.

Area Near Rio Fajardo: Shallow coastal and reef areas along the northeast coast provide nursery and early life habitat. Young groupers need calm waters, vegetation, and reef structure here for protection from predators and steady food sources as they develop.

Area Near El Faro De Cobo Rojo: Coastal waters near places like La Parguera include seagrass beds, mangroves, and patch reefs. Juvenile groupers depend on this area as a nursery habitat, needing shallow, protected waters with plenty of food and hiding places to grow before moving offshore.

Desecheo: This area includes reef slopes, ledges, and complex rocky habitats. Groupers rely on it for feeding, shelter, and spawning, needing crevices and reef complexity to hide, as well as access to prey and safe areas to form spawning aggregations.

Isla Mona y Monito: Waters around these offshore islands (down to ~50 m) contain coral reefs, rocky bottoms, and steep drop-offs. Nassau grouper use these areas mainly for spawning and adult habitat, needing deep reef structures, shelter from predators, and specific sites where they can gather in groups to reproduce.

Culebra y Culebrita: These waters include nearshore reefs, ledges, and transition zones between shallow and deeper habitats. Groupers use them as movement corridors and juvenile habitat, needing connected habitats that allow them to safely move, find food, and gradually shift to deeper adult reefs.

Bajo De Sico: Bajo de Sico is a deep, complex reef system that serves as Puerto Rico’s main (and only known) Nassau grouper spawning site, providing the structure, space, and stability they need to reproduce and survive.

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By The Numbers

Image by Vlad Tchompalov

10

+

FISHERS COLLABORATING

in local fisheries research

500

+

Grouper sightings recorded on the Meros PR app

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Latest Insights

CONTACT

PO Box 828

Rincón, PR 00677

Https://www.Islamar.org/

TEL: 903-780-8968

islamarexp@gmail.com

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LEGAL

Grouper illustrations used with permission from artediapp.com

illegal use of illustrations and all other material on this website is punishable by law.

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