Lake Amaramba | |
---|---|
Location | Mozambique |
Coordinates | 14°22′39″S35°55′19″E / 14.37750°S 35.92194°E |
Lake type | Fresh water |
Primary inflows | Lake Chiuta |
Primary outflows | Lugenda River |
Basin countries | Mozambique |
Max. length | 35.25 km (21.90 mi) |
Max. width | 1.2 km (0.75 mi) |
Surface area | 8,350 ha (20,600 acres) |
Max. depth | 5 m (16 ft) |
Surface elevation | 635 m (2,083 ft) |
Lake Amaramba (Portuguese : Lago Amaramba) is a shallow lake in Mozambique, near the border with Malawi. Located in the Nyasa plateau, it is north of Lake Chiuta. [1] The lakes are separated by a sandy ridge and a channel links the two lakes. On the western side of the channel, the connecting waterway is known as the River Msambiti while on the eastern side, it is known as the Lugenda River. [2] Lake Amaramba is intermittently linked to the Lugenda River, a tributary of the Ruvuma River. [3]
Lake Amaramba is part swamp and part open water spread over a total area of 8,350 hectares (20,600 acres). The open water area accounts for 4,350 hectares (10,700 acres) and swamp or marshy land accounts for 4,000 hectares (9,900 acres). It is bound within geographical coordinates of 14°22′00″S35°52′00″E / 14.36667°S 35.86667°E and 14°40′00″S35°58′00″E / 14.66667°S 35.96667°E at an elevation of 635 metres (2,083 ft). The lake, formed in a shallow depression, is swampy on the southern and eastern side. The lake measures 35.25 kilometres (21.90 mi) in length with an average width of 1.2 kilometres (0.75 mi). For the most part, it lies N.N.E. and S.S.W. [4] The northern end of the lake bears W.N.W. with a width of 1,800 ft (550 m) to 2,400 ft (730 m). [5] The only conspicuous features visible east of the lake are the hills, separate from one another, named Mitumbi, Mero, Mangombo, Chikalulu and Lipembegwe. [6]
Its drainage basin lies partly in Malawi with a minor stream entering the lake at its southern end. At its upstream end, Lake Chiuta feeds it through a 9 kilometres (5.6 mi) long link channel. During the rainy season, the two lakes become one mass of water spread area. The outlet of the lake leads to the Lugenda River, which in turn joins the Rovuma River, a larger river system. [3] The Amaramba Lake exhibits a feature of a wide river. However, the lake has a narrow width as compared to the Lake Chiuta on the upstream which has a triangular shape. [7]
The lake waters are a sustaining source of fresh water for the people in the region for growing crops and providing the means of inland transportation. The combined lakes, during the annual flood season, also make the land fertile through deposition of enriching silt. [8]
The lake system (both Chiuta and Amaramba) had in the past very rich wild life but during the civil war suffered severe poaching and hunting. Aqua fauna in the lake also suffered due to overfishing caused by migrants from Malawi. [8] Following this destruction, the World Wide Fund for Nature (WWF) and Oxfam GB initiated measures to stop the illegal practices. A participatory approach involving people of the area, the local and provincial government and the Coastal Security Commission, was evolved to address the adverse ecological aspects created in the past, with the objective of enhancing production from the lake system without resorting to overuse of the resources of the lake. [8]
The five-year programme envisaged for revival of resources of the ecosystem of Lake Chiuta-Amaramba area, through a participatory approach, involves several measures. [8] The first of these is to prevent resource overuse and introduce measures for increasing productivity to enhance economic conditions of the community thriving on the lake's resources. Establishing a formal lake reserve in Lake Chiuta-Amaramba would preserve the lake's fish and waterbirds and would increase aquatic resources for rightful use by the local community. Also of importance would be establishing checks and balances on the quality and quantity of produce removed from the lake. Protection of the surrounding forest area through an appropriate wildlife management mechanism would permit for diversification of wildlife species which would promote the base structure of the rural livelihood. The final revival measure of the program consists of creating an environment to market local products.
In 1882, Henry E. O'Neill, H.B.M. Consul to Mozambique and 1885 recipient of the Royal Geographical Society Patron's Medal, surveyed the area and subsequently published, Journey from Mozambique to Lake Shirwa, and discovery of Lake Amaramba itemizing nine villages and hamlets, named after their chiefs, at the lake's shores. Five of these were upon the eastern (Napulu, Cheinlola, Chekungwa, Chemaunda and Chengogwe), three upon the western (Akumhumbwa, Chemina and Chemataka), and one was located at the northern extremity (Akamtundu). [4] The south-eastern shore of the lake is populated by Lomwe Makua. [9] Currently, the nearest town to the lake is Cacova on its western side.
The geography of Mozambique consists mostly of coastal lowlands with uplands in its center and high plateaus in the northwest. There are also mountains in the western portion. The country is located on the east coast of southern Africa, directly west of the island of Madagascar. Mozambique has a tropical climate with two seasons, a wet season from October to March and a dry season from April to September.
Malawi is a landlocked country in southeast Africa. It is wholly within the tropics; from about 9°30S at its northernmost point to about 17°S at the southernmost tip. The country occupies a thin strip of land between Zambia and Mozambique, extending southwards into Mozambique along the valley of the Shire River. In the north and north east it also shares a border with Tanzania. Malawi is connected by rail to the Mozambican ports of Nacala and Beira. It lies between latitudes 9° and 18°S, and longitudes 32° and 36°E.
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The British Central Africa Protectorate (BCA) was a British protectorate proclaimed in 1889 and ratified in 1891 that occupied the same area as present-day Malawi: it was renamed Nyasaland in 1907. British interest in the area arose from visits made by David Livingstone from 1858 onward during his exploration of the Zambezi area. This encouraged missionary activity that started in the 1860s, undertaken by the Universities' Mission to Central Africa, the Church of Scotland and the Free Church of Scotland, and which was followed by a small number of settlers. The Portuguese government attempted to claim much of the area in which the missionaries and settlers operated, but this was disputed by the British government. To forestall a Portuguese expedition claiming effective occupation, a protectorate was proclaimed, first over the south of this area, then over the whole of it in 1889. After negotiations with the Portuguese and German governments on its boundaries, the protectorate was formally ratified by the British government in May 1891.
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Ruvuma River, formerly also known as the Rovuma River, is a river in the African Great Lakes region. During the greater part of its course, it forms the border between Tanzania and Mozambique. The river is 998 km (620 mi) long, with a drainage basin of ~155,000 km2 (60,000 sq mi) in size. Its mean annual discharge is 475 m3/s (16,800 cu ft/s) to 2,286 m3/s (80,700 cu ft/s) at its mouth.
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