A side-profile shot of a goliath grouper fish swimming horizontally against a vibrant, solid blue background. The fish features a robust body covered in dark spots and a mottled camouflage pattern of greenish-grey and white, with prominent spiny dorsal fins running along its back.
Marine ScienceMinute
With Florida Sea Grant
Marine Science Minute

Episode 9 – Goliath Grouper


goliath grouper
Marine Science Minute with Florida Sea Grant
Episode 9 - Goliath Grouper
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Today on Marine Science Minute with Florida Sea Grant: Goliath Grouper.

An enormous goliath grouper with a mottled grey and brown patterned body swims through deep blue ocean water just above a sandy seabed. A striped remora fish hitches a ride beneath its large belly, while several smaller fish swim in the blurry background

Goliath grouper are the largest fish in the tropical western Atlantic, growing as large as 8 feet long and weighing up to 800 pounds! Goliaths have been protected from harvest since the 1990’s and are now a huge diver attraction during summer and fall months when they gather to spawn.  

A first-person perspective shot from behind a scuba diver shows a massive goliath grouper resting on a sandy ocean floor. The diver, wearing black gear with a bright yellow regulator hose, swims directly toward the enormous, speckled grey fish in pale green water

Every year, Florida Sea Grant calls upon citizen scientists to assist with a monitoring project called the Great Goliath Grouper Count and you can participate too! This project utilizes recreational divers to capture data about Goliath grouper populations around the state. The data collected is a vital tool for fisheries management.  

For information about this and other coastal topics, contact your county extension office or visit Florida Sea Grant at flseagrant.org.

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