Alem Tena is the town in central Ethiopia

Ethiopia

Ethiopia , officially known as the Federal Democratic Republic of Ethiopia, is a country located in the Horn of Africa. It is the second-most populous nation in Africa, with over 82 million inhabitants, and the tenth-largest by area, occupying 1,100,000 km2...

. Located in the Misraq Shewa Zone

Misraq Shewa Zone

Misraq Shewa is one of the 12 Zones of the Ethiopian Region of Oromia. This zone takes its name from the kingdom or former province of Shewa. Misraq Shewa is located in the middle of Oromia, connecting the western regions to the eastern ones...

 of the Oromia Region

Oromia Region

Oromia is one of the nine ethnic divisions of Ethiopia...

, it has a latitude and longitude of 8.30°N 38.95°E with an elevation of 1,611 meters.

Overview

Near Alem Tena is Lake Ellen, thought to be the site the invasive species

Invasive species

"Invasive species", or invasive exotics, is a nomenclature term and categorization phrase used for flora and fauna, and for specific restoration-preservation processes in native habitats, with several definitions....

 Eichhornia crassipes

Eichhornia crassipes

Eichhornia crassipes, commonly known as Common Water Hyacinth, is an aquatic plant native to the Amazon basin, and is often considered a highly problematic invasive species outside its native range.-Ecology:...

(or water hyacinth) was introduced.

Based on figures from the Central Statistical Agency

Central Statistical Agency (Ethiopia)

The Central Statistical Agency is an agency of the government of Ethiopia designated to provide all surveys and censuses for that country used to monitor economic and social growth, as well as to act as an official training center in that field. It is part of the Ethiopian Ministry of Finance and...

 of Ethiopia published in 2005, Alem Tena has an estimated total population of 13,529 consisting of 6,605 men and 6,924 women. It is one of two towns in Dugda Bora

Dugda Bora

Dugda Bora is one of the 180 woredas in the Oromia Region of Ethiopia. Part of the Misraq Shewa Zone located in the Great Rift Valley, Dugda Bora is bordered on the southeast by Lake Zway, on the south by Adami Tullu and Jido Kombolcha, on the west by the Southern Nations, Nationalities and Peoples...

 woreda

Woreda

Woreda is an administrative division of Ethiopia , equivalent to a district . Woredas are composed of a number of Kebele, or neighborhood associations, which are the smallest unit of local government in Ethiopia...

.