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Tracking reef fish

Tracking reef fish

An orange anemonefish (Amphiprion sandaracinos) hides among sea anemones at a reef off Restoff Island in Kimbe Bay, Papua New Guinea. In April 2005, WHOI biologist Simon Thorrold and colleagues…

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Tracking reef fish larvae

Tracking reef fish larvae

A spine-cheek anemonefish (Premnas biaculeatus), or maroon clownfish, swims along a coral reef in Kimbe Bay, Papua New Guinea. As part of an international collaboration, WHOI biologist Simon Thorrold and…

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Coral reef deterioration stages

Coral reef deterioration stages. Healthy corals support healthy marine ecosystems, but corals are in crisis on many fronts. High levels of carbon dioxide are warming ocean waters and causing them…

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Give Reefs a Chance

Coral reefs play a vital role in sustaining the health of our ocean and our planet, and they are dying at an alarming rate. But right now, WHOI researchers are jumping into action to develop real-time and scalable solutions–measuring chemicals to determine coral health, understanding how fish sounds may be the key to rebuilding impacted reefs, and innovating robotics to monitor and detect coral stress and disease, before it is too late. If we want to save coral reefs, we need to act now. We need to give reefs a chance!

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Sounds of the Reef

Sounds of the Reef

Engineer Rod Catanach sets up a four-channel acoustic recorder to measure coral reef soundscapes—a combination of biological and non-biological sounds produced by everything from fish to waves—during field work in…

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Fish Chatter

Fish Chatter

To our ears coral reefs may seem relatively quiet, but fish there make a variety of sounds that are often described by scientists as grunts, pops, chirps, hoots and more.…

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Multi-Pronged Coral Reef Research

Multi-Pronged Coral Reef Research

WHOI scientist Amy Apprill led an first-of-its kind joint expedition with Cuban and American scientists in November 2017 to study the Gardens of the Queens in Cuba, one of the most untouched and unknown coral…

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Homing in on Reef Homes

Homing in on Reef Homes

Justin Suca holds a translucent young mantis shrimp off the Caribbean island of St. John where he does field work. Suca, a graduate student in the MIT-WHOI Joint Program in…

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Fertile Reef

Fertile Reef

A spine-cheek anemonefish (Premnas biaculeatus), or maroon clownfish, swims along a coral reef in Kimbe Bay, Papua New Guinea. As part of an international collaboration, WHOI biologist Simon Thorrold and researchers…

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Eavesdropping on the Reefs

Eavesdropping on the Reefs

In two recent studies, WHOI scientists demonstrated an new way to assess the health of coral reefs and to monitor threats on remote atolls: They used low-cost underwater recorders designed…

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Reef Indicator

Reef Indicator

The blackbacked butterflyfish (Chaetodon melannotus) often feeds on soft corals. During a trip to the Farasan Banks in the Saudi Arabian waters of the Red Sea in 2009, WHOI biologist…

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Reef as Refuge

Reef as Refuge

Scientists have predicted that ocean temperatures will rise in the equatorial Pacific by the end of the century, wreaking havoc on coral reef ecosystems. But a new study published by Woods…

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REMUS Reef Reconnaissance

REMUS Reef Reconnaissance

In order to design marine preserves that best protect fish, conservationists need to know more about where and how fish move from their larval to adult stages. In 2006, WHOI…

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Home on the Reef

Home on the Reef

A pink anemonefish (Amphiprion perideraion) looks out from the tentacles of its home, a big anemone in Kimbe Bay, Papua New Guinea, where WHOI fish ecologist Simon Thorrold has a…

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Searching for snapper fish

Searching for snapper fish

MIT/WHOI Joint Program graduate student Kelton McMahon (front) and WHOI research assistant Leah Houghton enter a large underwater cavern on a Red Sea coral reef off Alith, Saudi Arabia in…

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Red Sea reef

Red Sea reef

Reef-building corals create habitats for many other organisms. The coral reefs of the Red Sea are highly diverse and unique in the world, providing shelter and sustenance for abundant fishes…

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Searching for snapper fish

Searching for snapper fish

MIT/WHOI Joint Program graduate student Kelton McMahon (front) and WHOI research assistant Leah Houghton enter a large underwater cavern on a Red Sea coral reef off Alith, Saudi Arabia in…

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Reef’s edge

Reef's edge

An inflatable boat and dive-tour operators stand by at a coral reef’s edge in the Red Sea, where WHOI scientists are studying the unique, pristine reef ecosystems along Saudi Arabia’s…

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Red Sea reef

Red Sea reef

Reef-building corals create habitats for many other organisms. The corals reefs of the Red Sea are highly diverse and unique in the world, providing shelter and sustenance for abundant fishes…

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Home on the reef

Home on the reef

An orange clownfish (Amphiprion percula) peeks out from the protection of sea anemones on a reef in Kimbe Bay, Papua New Guinea. Clownfish are the focal species in ongoing research…

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Protecting fish nurseries

Protecting fish nurseries

Juvenile coral reef fish get food and protection from predators among the roots and nutrient-rich waters of coastal mangrove swamps. These valuable fish nurseries are disappearing at an alarming rate.…

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Reef Watch

Reef Watch

A clownfish swims amid the corals of the Red Sea, where WHOI researchers are planning to team with colleagues from Saudi Arabia to examine a reef system that has mostly…

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Corals Under Threat

Corals Under Threat

A large school of bigeye trevally swim past a submarine carrying WHOI scientists descending in Cabu Pulmo National Park on the east coast of Mexico’s Baja California Peninsula. Overfishing had decimated…

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