Fighting the European Green Crab Invasion 

One of the world’s most destructive invasive species is gaining new ground — or water — in Canada and up to Alaska. Carcinus maenas, which translates to “raving mad crab,” outcompetes many local crab species in devouring clams, oysters, and mussels, and they sometimes even eat other crabs and juvenile fish. They destroy seagrass, an essential habitat for juvenile salmon, herring, rockfish, and many other marine animals.

A mass of invasive European green crabs

Guardians of Malpelo

Colombia has some of the strictest illegal fishing laws in the world, but people still need to stand up and enforce them. Erika Lopez has taken on the role of guardian of Malpelo, an island 314 miles (506 kilometers) west of Colombia.

This whale shark is feeding on the spawn of jacks at dusk.

When Tiny Toxins Fight Back

Sometimes the tiniest critters can pack the greatest punch. Phytoplankton, which are unicellular microalgae, can cause mass mortalities of animals such as dolphins and manatees and be the source of serious human illness.

phytoplankton

Changer la donne

Maintenir une distance respectueuse avec des espèces potentiellement dangereuses sous l’eau est une règle fondamentale de la plongée récréative et un sujet fréquemment abordé lors des briefings avant plongée sur les bateaux. Mais ces poissons venimeux, que vous avez appris à éviter, pourraient un jour vous sauver la vie

Scorpionfish is a common tropical coral reef resident in both Pacific and Atlantic/Caribbean waters.

Rencontres Proches et Respectueuses

Beaucoup de plongeurs terminent un voyage dans la mer Rouge méridionale en observant un dugong dodu fouiller dans les herbiers marins à environ 7,6 mètres (25 pieds) de profondeur.

Whale shark (Rhincodon typus), the largest fish in the sea

Cruise Ships Are Stirring Things Up

Coral reefs are facing many environmental challenges, and cruise ships are a major contributor. One of these ships’ greatest impacts is starting to muddy the water.

Cruise ships are large and getting larger.

The Business of Protecting Paradise 

Our oceans are under siege. Destructive industrial-scale fishing is causing widespread species decline. Ocean warming due to human-induced climate change is triggering episodes of mass coral bleaching with increased vigor and frequency.

Aerial view of the Wakatobi Resort and house reef.