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Guam Marine Life & Wildlife Guide

Wildlife · Destination Guide

Guam

Wrecks from two world wars, a heart shaped blue hole, and tropical walls in the Western Pacific

Updated Oct 30, 2025 • 34 sources

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Wildlife In Guam

Browse the full species list linked to approved dive spots in Guam.

Green sea turtle ( Chelonia mydas ), Moorea, French Polynesia

Green Turtle

Chelonia mydas

27 linked spots

a fish that is swimming in the water

saltwater-fishes

Barracuda

19 linked spots

Photo of Octopus

Octopus

18 linked spots

green and black fish in body of water

Stingrays

14 linked spots

gray snake photography

Moray Eel

13 linked spots

a fish swimming in water

saltwater-fishes

Parrotfish

13 linked spots

A blacktip reef shark swims over sandy seabed.

Blacktip Reef Shark

Carcharhinus melanopterus

12 linked spots

Gestreifter Adlerrochen ( Pteromylaeus bovinus )

Eagle Ray

12 linked spots

brown turtle in sea

Hawksbill Turtle

Eretmochelys imbricata

11 linked spots

Photo of Whitetip Reef Shark

Whitetip Reef Shark

Triaenodon obesus

11 linked spots

Photo of Wrasse

saltwater-fishes

Wrasse

10 linked spots

Red lionfish (Pterois volitans) near Gilli Banta Island (near Komodo, Indonesia)

saltwater-fishes

Lionfish

9 linked spots

A fish that is sitting in the sand

saltwater-fishes

Butterfly Fish

8 linked spots

Photo of Tuna

saltwater-fishes

Tuna

8 linked spots

orange and white clown fish

saltwater-fishes

Clownfish

6 linked spots

Photo of Jackfish

saltwater-fishes

Jackfish

5 linked spots

a fish that is swimming in some water

saltwater-fishes

Angelfish

4 linked spots

Photo of Eel

saltwater-fishes

Eel

4 linked spots

Photo of Nudibranch

Nudibranch

4 linked spots

a blue and white fish in an aquarium

saltwater-fishes

Triggerfish

4 linked spots

Photo of Grouper/Basslets

saltwater-fishes

Grouper/Basslets

3 linked spots

Photo of Pufferfish

saltwater-fishes

Pufferfish

Tetraodontidae

3 linked spots

Photo of Reef Manta Ray

Reef Manta Ray

Mobula alfredi

3 linked spots

Photo of Snapper

saltwater-fishes

Snapper

3 linked spots

gray shark in body of water

Nurse Shark

Ginglymostoma cirratum

2 linked spots

Photo of Scorpionfish

saltwater-fishes

Scorpionfish

Scorpaenidae

2 linked spots

Photo of Soldierfish

saltwater-fishes

Soldierfish

Myripristinae

2 linked spots

Photo of Spinner Dolphin

Spinner Dolphin

Stenella longirostris

2 linked spots

a yellow and black spotted fish in an aquarium

saltwater-fishes

Boxfish

Ostraciidae (family)

1 linked spots

crab on rock

Crab

1 linked spots

a blue and yellow fish on a coral reef

saltwater-fishes

Damselfish

1 linked spots

Photo of Goatfish

saltwater-fishes

Goatfish

1 linked spots

Great white shark at Isla Guadalupe, Mexico, August 2006. Shot with Nikon D70s in Ikelite housing, in natural light. Animal estimated at 11-12 feet (3.3 to 3.6 m) in length, age unknown.

Great White Shark

Carcharodon carcharias

1 linked spots

Grey reef shark (Carcharhinus amblyrhynchos) Image ID: corl0207, NOAA's Coral Kingdom Collection Location: Pacific Remote Islands, Kingman Reef Photo Date: 2015 Photographer: Kevin Lino NOAA/NMFS/PIFSC/ESD

Grey Reef Shark

Carcharhinus amblyrhynchos

1 linked spots

Photo of Leaf Scorpionfish

saltwater-fishes

Leaf Scorpionfish

Taenianotus triacanthus

1 linked spots

Photo of Pilot Whale

Pilot Whale

1 linked spots

Photo of Shrimp

Shrimp

1 linked spots

Silky shark ( Carcharhinus falciformis ) at Jardines de la Reina, Cuba

Silky Shark

Carcharhinus falciformis

1 linked spots

Photo of Squid

Squid

1 linked spots

Photo of Stickleback

freshwater-fishes

Stickleback

1 linked spots

Photo of Surgeonfish

saltwater-fishes

Surgeonfish

Acanthuridae

1 linked spots

Photo of Trumpetfish

saltwater-fishes

Trumpetfish

1 linked spots

a whale swimming in the ocean with a lot of fish around it

Whale Shark

Rhincodon typus

1 linked spots