Omnivores that live in the ocean include sea turtles, manatee, dolphins, opaleye, saltwater crabs, lobsters, sea otters, sharks and whales. Deep-sea omnivores include copepods and some species of squid and octopus. Among sea birds, several species of seagull are omnivorous.Know More
Living in large open habitats like the ocean means that animals must be able to take advantage of food whenever it presents itself. Marine omnivores must either wait for food to drift their way or range over vast territories to find it. Omnivores have a distinct genetic advantage over obligate herbivores and carnivores because they can eat almost any protein available, sometimes even carrion, depending on species.
Just like omnivores in other habitats, marine omnivores may be either primary consumers or secondary consumers in the food chain. Primary consumers usually feed on plant matter and serve as food for secondary consumers, which in turn serve as food for tertiary consumers such as sharks and whales. Ocean-going omnivores, such as crustaceans, fish and mammals in particular, are excellent sources of protein and other nutrients.
Marine omnivores, like other omnivores, have evolved into very successful organisms, and representatives are common throughout the orders of plants, animals and insects. Not just opportunistic feeders, many rely on their varied, high-protein diet to remain healthy.
Some animals that live in the Southern Ocean include Hoff crabs, sea cucumbers, icefish and starfish. Other animals that live in the Southern Ocean include Antarctic toothfish, Patagonian toothfish, elephant seals, krill and giant squid.Full Answer >
There are thousands of different species of ocean plant life, including phytoplankton, algae, kelp and seagrasses. There are over 130,000 species of algae alone, but the most common forms are red and brown algae. Red algae is what is commonly seen on coral reefs, and brown algae is considered the most complex form of algae.Full Answer >
The Indian Ocean, like many of Earth's oceans, serves as home to a diverse number of species, including anenomefish, Great White sharks, bottlenose dolphins, blue whales, sea turtles, jellyfish, stingrays, sea anemones, sea snakes, worms and stonefish. Creatures inhabiting the Indian Ocean range in size from tiny microorganisms to some of the largest animals on the planet, such as large sharks and blue whales. Some creatures pose little threat to humans and other mammals, while others contain lethal venom or emit potent toxins, potentially causing harm.Full Answer >
Sea cucumbers are eaten by crabs, fish, crustaceans, sea turtles and sea stars. Sea cucumbers are also eaten by people around the world, particularly those that live in Asia.Full Answer >