The Organic World of the Pacific

The Organic World of the Pacific

The organic world of the Pacific Ocean is extremely rich and diverse. Only in its surface layer was found over a thousand species of microorganisms contained in plankton. One of the richest in species composition of organisms is located in the temperate zone of the Sea of ​​Japan.

Coral reefs of tropical and equatorial latitudes are distinguished by the richness of life forms. The coral reef is called the shallow, formed as a result of the life of coral polyps – marine organisms with a hard calcareous skeleton. The best corals feel at a depth of up to 50 m at a temperature of +23 … + 25 ° C and an average salinity of 35 </s>. They feed on corals with plankton. Often they settle on the slopes of extinct submarine volcanoes. Then the coral islands are formed – atolls. Atolls are ring-shaped with a lagoon in the middle. Most often, the lagoon of the island connects to the ocean, but there are also closed lagoons. Most atolls are concentrated in the western and central parts of the Pacific Ocean. Sometimes they form archipelagos.

The largest is the Great Barrier Reef off the east coast of Australia. The Great Barrier Reef is the realm of fish, worms, sea urchins, stars, squids, octopuses. It is here that small fish are found, affecting the richness of color shades.

Many species of fish and animals are of industrial importance. So. Salmon, salmon, salmon, chum salmon are common in the northern part of the ocean. In the central part there are a lot of tuna and herring, and near the west coast – anchovies.

Fish is the fodder base for birds. On the Pacific coast in some places there are bird markets, there nestle cormorants, pelicans, penguins.

In the ocean, there are also mammals: whales, dolphins, seals, sea otters. Another feature of the Pacific Ocean is the presence of giant animals, such as, for example, tridakna mollusk, Kamchatka crab, whale shark, blue whale.


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The Organic World of the Pacific