Seas of Russia

Views:
 
Category: Education
     
 

Presentation Description

No description available.

Comments

Presentation Transcript

Seas and rivers of Russia:

Seas and rivers of Russia

PowerPoint Presentation:

The Russian coast is washed by 12 seas and the Caspian sea-lake. The west coast of Kamchatka and of Kuril islands goes directly to the Pacific Ocean. The total area of the territorial waters and exclusive economic zone of Russia is about 7 million square kilometers.

Seas of Russia:

Seas of Russia Sea of Azov ‎ Baltic Sea ‎ Barents Sea ‎ Bering Sea ‎ Black Sea ‎ Chukchi ( Chuckchee ) Sea ‎ East Siberian Sea ‎ Sea of Japan ‎ Kara Sea ‎ Laptev Sea ‎ Sea of Okhotsk ‎ White Sea ‎

Features of seas:

Features of seas Barents, Bering and Okhotsk seas are the most productive seas in the world, and the productivity of the Western Kamchatka shelf is the highest in the world and is about 20 t/km2. The highest diversity of sturgeon (осетр) and salmon ( лосось) of the world are in the Russian seas. The most important migration routes (маршруты) of the marine mammals and birds of the northern hemisphere pass along the coast of the Russian seas.

PowerPoint Presentation:

The warm streams of North-Atlantic and North-Pacific sea currents meet with cold arctic waters in Barents and Bering Seas. These areas represent great diversity of nature formations and high ecosystem productivity. White Sea is habitat for both arctic and temperate waters species. The Sea of Okhotsk is home for Greenland (ice) whale. The ecosystems of the Black Sea are very similar to waters of the Mediterranean sea.

Diversity of fish:

Diversity of fish Herring ( сельдь) Sturgeon (осетр) Salmon (лосось) Carp (карп, сазан) Catfish (сом) Cod (треска) flying fish (летучая рыба) Seahorse (морской конек) Perch (окунь) Pike ( щука)

Ecosystems in danger:

Ecosystems in danger the nature of the Russian seas is under the intense human impact. The Black and the Caspian seas affected particularly. During the last decades their ecosystems are almost entirely changed under the influence of human and natural factors.

Threat to marine life:

Threat to marine life Over-exploitation of marine biological resources leading to their depletion. The reasons: poorly regulated fishing. Marine pollution and disturbance of natural ecological processes. The reasons: oil and gas offshore, intensive navigation. Pollution and other impacts on the ecosystems of the rivers flowing into the seas of Russia.

Reforms to save marine nature:

Reforms to save marine nature The development of sustainable fisheries ( жизнеспособная ихтиофауна) , which does not deplete marine bioresources . Creating of a national network of marine protected areas (nature reserves, fishery protected zones, refuges and parks). environmental assessment of oil and gas on the shelf (на отмели) before these projects start.

8 current nature reserves:

8 current nature reserves 2 refuges of the Far East 2 Arctic reserves 2 reserves and a refuge of Barents and White Seas 2 nature reserves in the Caspian sea

PowerPoint Presentation:

Russia can be divided into a European and an Asian part. The dividing line is generally considered to be the Ural Mountains and the Caspian Sea . The European part is drained into the Arctic Ocean , Baltic Sea , Black Sea and Caspian Sea . The Asian part is drained into the Arctic Ocean and the Pacific Ocean .

PowerPoint Presentation:

A river is a natural watercourse , usually freshwater , flowing towards an ocean , a lake , a sea , or another river. Small rivers may also be called stream (ручей) and tributary (приток) . Water within a river is collected from precipitation surface runoff and other sources such as groundwater , springs , and the release of stored water in natural ice (e.g., from glaciers ). The water in a river is in a channel , made up of a stream bed between banks .

Rivers:

Rivers Rivers begin in the mountains where rain and melted snow form a stream that flows down. The water erodes the rocks. Rivers flatten the relief and fall into the sea.

Role of rivers and lakes:

Role of rivers and lakes Rivers and lakes a very important role on Earth. Functions: Rivers provide an inland supply of fresh water Rivers irrigate the land Rivers erode the land and carry away the sediments Rivers collect rainfall

PowerPoint Presentation:

The start of the river is called the source ( исток) . The end of the river is called the mouth (устье) . A small river which flow into the big river is called a tributary (приток) .

Rivers of Russia :

Rivers of Russia in Europe are the Volga , Don , Kama , Oka and the Northern Dvina Several other rivers originate in Russia but flow into other countries, such as the Dniepr and the Western Dvina In Asia, important rivers are the Ob , Irtysh , Yenisey , Angara River , Lena , Amur , Yana , Indigirka and Kolyma .

Lakes:

Lakes A lake is an inland body of water that has collected in a hollow ( впадина) . Hollows are formed by glaciers, volcanoes, river erosion, faults. Lakes consist of freshwater.

lakes in Russia :

lakes in Russia Baikal ( Байкал) Beloye ( Белое) Brosno ( Бросно) Bustakh ( Бустах) Caspian Sea ( Каспийское Море) Chany ( Чаны) Chukchagirskoye ( Чукчагирское) Ilmen ( Ильмень) Imandra ( Имандра) Kezanoi ( Кезеной-Ам) Khanka ( Ханка) Khantayskoye ( Хантайское) Kizi ( Кизи) Kubenskoye ( Кубенское) Kulundinskoye ( Кулундинское) Ladoga ( Ладожское) Lama ( Лама) Lovozero ( Ловозеро) Nero ( Неро) Onega ( Онежское) Orel ( Орель) Ozhogino ( Ожогино) Pleshcheyevo ( Плещеево) Lake Peipus ( Чудско-Псковское) Segozero ( Сегозеро) Seliger ( Селигер) Taimyr ( Таймыр) Teletskoye ( Телецкое) Topozero ( Топозеро) Uvs Nuur ( Увс Нуур) Valdayskoye ( Валдайское) Vistytis ( Виштынецкое озеро) Yessey ( Ессей)