Wetland and Aquatic Research Center

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Image: Grunts and other fish species in mangroves
March 21, 2010

Grunts and other fish species in mangroves

Mangroves are "nurseries" for several species of grunts and other fishes which find shelter in the complex prop roots.

Image: Reef Urchin (Echinometra viridis)
March 6, 2010

Reef Urchin (Echinometra viridis)

Bright red Reef Urchins (Echinometra viridis) graze on algae growing on prop roots and rocks in shallow water.

Image: Smooth Trunkfish (Lactophrys triqueter)
March 6, 2010

Smooth Trunkfish (Lactophrys triqueter)

Smooth Trunkfishes (Lactophrys triqueter) and other species of oddly-shaped "boxfishes" are characteristic of these mangroves.

Image: Coral Reef  at Hurricane Hole USVI
February 28, 2010

Coral Reef at Hurricane Hole USVI

Image of  several species of coral growing on and near the prop roots of red mangrove trees.  Sponges, feather duster worms, and sea grass also appear in the picture.

Close-up of manatee calf underwater
February 24, 2010

Curious manatee calf approaches scientist at Crystal River, Florida

A curious manatee calf encounters a snorkeling scientist as the USGS Sirenia Project conducts fieldwork at Crystal River National Wildlife Refuge, Florida

Image: Cushion Sea Star (Oreaster reticulata)
January 18, 2010

Cushion Sea Star (Oreaster reticulata)

A Cushion Sea Star (Oreaster reticulata) moves slowly along the bottom near some bright green algae (Caulerpa racemosa).

Image: Gray Angelfish (Pomacanthus arcuatus)
January 10, 2010

Gray Angelfish (Pomacanthus arcuatus)

A juvenile Gray Angelfish (Pomacanthus arcuatus) feeds on sponges with French Grunts nearby.

Image: Four Eye Butterflyfish (Chaetodon capistratus)
January 10, 2010

Four Eye Butterflyfish (Chaetodon capistratus)

Juvenile Four Eye Butterflyfishes (Chaetodon capistratus) find protection in the prop roots and feed on coral polyps.

Brain corals, mangrove prop roots and squirrelfish
December 31, 2009

Corals and mangroves share clear waters

Sediment can smother corals, but Hurricane Hole has no sediment-bearing freshwater streams. Its clear waters are habitat for an entire community of marine life, including Montastrea corals and squirrelfish. Photo: Caroline Rogers, USGS, 2009

Image: Red Mangrove trees
November 27, 2009

Red Mangrove trees

The seedlings of Red Mangrove trees germinate from fruits while still attached to the trees. Here many are growing within the roots of adult trees.

Image: Flat Tree Oyster (Isognomon alatus)
November 5, 2009

Flat Tree Oyster (Isognomon alatus)

At high tide, the red bark of the Red Mangrove Trees is submerged, creating a brilliant reflection at the water's surface. Flat Tree Oysters (Isognomon alatus) grow on the upper portions of the roots.

Image: Sponges in the Hurricane Hole mangroves
October 10, 2009

Sponges in the Hurricane Hole mangroves

Sponges, such as the blue, green and orange ones growing on these prop roots, provide much of the color in the Hurricane Hole mangroves.