What is the answer to the Alipay ant manor estate in March 29, 2020? The question on March 29 is which of the following oceans is the most abundant in marine biological resources? The options given are the Pacific Ocean and the Indian Ocean. Do you know which answer to choose? The following small series brings you the correct answers to the manor small class on March 29, 2020. Come and have a look.
On March 29, 2020, ant manor small class questions
Which of the following oceans is the most abundant in marine biological resources?
the pacific ocean
the indian ocean
Answers to the small class of ant Manor on March 29, 2020
the pacific ocean
The Pacific Ocean is the largest and deepest ocean with the most marginal seas and islands in the world. 18183 animals and plants, whether phytoplankton or seafloor plants, as well as fish and other animals, are more abundant than other oceans.
The animals and plants growing in the Pacific, whether phytoplankton or seafloor plants, as well as fish and other animals, are more abundant than other oceans.
Fishery the area of Pacific shallow sea fishing ground accounts for about 1 / 2 of the total area of ocean shallow sea fishing ground in the world, and the marine catch accounts for more than half of the world catch. Peru, Japan, China's Zhoushan Islands, the northwest coast of the United States and Canada are all world-famous fishing grounds. It is rich in herring, COD, salmon, mackerel, trout, bonito, sardine, golden spear, and other fish. In addition, the hunting and crab industry of sea animals (seals, walruses, sea bears, sea otters, whales, etc.) also plays an important role.
Mineral resources the offshore continental shelf is rich in oil, natural gas and coal. The deep-sea basin is rich in fierce nodule deposits (the metal reserves of manganese, nickel, cobalt and copper are dozens to thousands of times more than those on land). In addition, the seabed is also rich in placer tin, rutile, zirconium, titanium, iron and platinum.
The Pacific Ocean is vast and rich in natural resources. Aquatic resources and mineral resources have been developed and utilized. There are nearly 100000 species of animals and plants in the Pacific Ocean, mainly living in the surface of the ocean, especially in the marginal zone. Only 4% ~ 5% of the total animals and plants exist in the waters below 2000 meters. There are only 800 species of animals and plants in the waters below 5000 meters, only 500 species in the waters below 6000 meters, 200 species at 7000 meters, and only more than 20 species at 10000 meters. At the same time, the species of marine organisms decrease with the increase of latitude, but the distribution density of each animal and plant is greater in high latitude than in low latitude, and there are many dominant species in high latitude. Planktonic algae and zooplankton proliferate on the surface of the ocean. There are deer horn algae and kunxike algae (mainly kelp) in the temperate zone and brown algae, green algae and a variety of fine algae in the tropics. Mangroves are distributed along the coast. Many algae provide sufficient feed for coastal animals, reproduce a variety of molluscs, molluscs, crustaceans and echinoderms, as well as corals, and produce a large number of fish and crabs. It is the habitat of seabirds on islands and coastal zones. There are many animals in the ocean, such as whales, seals, dolphins, sea bears, seals, sea otters and so on.
Since the mid-1960s, the fishery production in the Pacific has been the first in the world. The output in 1980 was 35.45 million tons, accounting for more than half of the world's total catch (64.576 million tons). There are two main fishing grounds: one is the Northwest Pacific fishing ground; The other is the Southeast Pacific fishing ground. The Northwest Pacific Fisheries include part of the Bering Sea, the Okhotsk Sea, the sea of Japan, the Yellow Sea, the East China Sea and the Taiwan Strait. The continental shelf of the fishing ground covers an area of 2.19 million square kilometers, the sea water is shallow, the sun can penetrate into the bottom, many rivers bring a large number of inorganic salts, and cold and warm currents bring cold and warm plankton, which provides suitable conditions for plankton nutrition and fish growth, and has become one of the main fishing grounds in the world. In 1980, the fishing output was 18.78 million tons, ranking first among the main fishing areas in the world. Among them, Hokkaido fishing ground in Japan mainly produces herring, salmon, trout and other fish. The Bering and Okhotsk seas are dominated by sea animals, most of which are whaling. The coast of Kamchatka Peninsula is the world's largest crab farm. The Zhoushan islands along China's coast mainly catch large yellow croaker, small yellow croaker, hairtail, pomfret, sea eel and squid. The fishing grounds in the Southeast Pacific include those in Peru, Chile and Ecuador. The continental shelf here is narrow and only 160000 square kilometers. However, due to the strong Peruvian cold current and coastal upwelling and other environmental conditions, inorganic salts are also quite rich and suitable for plankton reproduction. Fish are very rich, making it an important fishing ground.