The marine biome is essentially all of the world’s connected salt and brackish waters, including the oceans, seas, coral reefs and estuaries. Most of the planet’s life lives in the marine biome, as it covers approximatel... More »

Although the marine biome’s temperature varies greatly from location to location and with depth, the average temperature is about 39 degrees Fahrenheit. This takes into account samples from all five major oceans at vario... More »

All of the ocean’s plants, animals and more primitive organisms are biotic factors for the marine biome. The marine biome is the largest biome on Earth, and it covers approximately 75 percent of the planet. More »

Rock salt comes from deposits found around dry lake beds, inland marginal seas and enclosed bays and estuaries. It can also be found in salt springs and underground mines. More »

The 114 species of butterflyfish live along the reefs of tropical coastal waters throughout the world. During the day, they are spotted along coral and other rock structures in search or worms and other invertebrates, re... More » Pets & Animals Marine Life Fish

Starfish live in oceans and seas around the world; they thrive in salt water and live in tropical and temperate waters alike. These hardy creatures generally congregate far below the surface of the water and spend most o... More »

Plants in the marine biome have flexible stems and leaves. This allows them to move freely. Floating plants have air pockets in their stem, which keeps them up in the water. More »