Lagoa dos Patos

Lagoa dos Patos (Portuguese pronunciation: [laˈɡo.ɐ dus ˈpatus], [lɐˈɡow.wɐ], locally [laˈɡo.ɐ dos ˈpatʊs]; English: Ducks' Lake) is the largest lagoon in Brazil and the largest barrier-lagoon in South America.[1] It is located in the state of Rio Grande do Sul, southern Brazil. It covers an area of 10,000 km2 (3,900 sq mi),[1] is 174 miles (280 km) long and has a maximum width of 44 miles (60 km).

Lagoa dos Patos is separated from the Atlantic Ocean by a sandbar about 5 miles (8 kilometers) wide. The Jacuí-Guaíba and Camaquã Rivers empty into it, while the navigable São Gonçalo Channel, which enters Lagoa dos Patos near the town of Pelotas, connects Lagoa dos Patos to Lagoa Mirim to the south.[1] The Rio Grande, at the south end of Lagoa dos Patos, forms the outlet to the Atlantic.[1]

The most accepted etymology is that the name "Patos" comes from an indigenous tribe that used to live in the area when the Europeans arrived.

This lagoon is evidently the remains of an ancient depression in the coastline shut in by sand beaches built up by the combined action of wind and current. The shallow lagoon is located at sea level, but its waters are affected by the tides and are brackish only a short distance above the Rio Grande outlet.[1]

The lagoon's largest and most fertile island is the Ilha dos Marinheiros, which is located near the eastern shore. The island is geopolitically part of the municipality of Rio Grande.

The lagoon hosts a rich biodiversity, including fresh- and brackish water fish, and water birds such as black-necked swan, coscoroba swan and Chilean flamingo.[1] Top predators from ocean ecosystem, notably common bottlenose dolphins, can sometimes be seen at Lagoa dos Patos[2][3] and exceptionally southern right whales are found at the Rio Grande outlet.[4][5]

Lagoa dos Patos PIA03444 lrg
Lagoa dos Patos from satellite

Towns and cities on coast

Ilha dos Marinheiros
Pier extending from the Ilha dos Marinheiros into the lagoon

Coordinates: 31°06′S 51°15′W / 31.100°S 51.250°W


  1. ^ a b c d e f "Laguna dos Patos". Freshwater Ecoregions of the World. Retrieved 8 January 2017.
  2. ^
  3. ^
  4. ^
  5. ^

Arambaré is a municipality in the state of Rio Grande do Sul, Brazil. It is bordered by Tapes on the north, Camaquã on the west and south, and Lagoa dos Patos on the east. It is at km 396 of the BR-116, 33 km from Camaquã. It is 156 km from Porto Alegre.

Arambaré, in Guarani, means "priest who shines light." Its origin was the Tape people, who populated the Lagoa dos Patos coast. Later the place was known as Barra do Velhaco and Paraguaçu. Dunas da Lua de Natal and Prainha are two of the baths found in the city.

In summer, tourism is the most important industry. The rural area is known for its rice and livestock.

The city is well known for its Carnaval, when thousands of tourists visit.

Barra Rio Grande Lighthouse

Barra Rio Grande Lighthouse is an active lighthouse located on a sandy strip between the Lagoa dos Patos and the South Atlantic Ocean in the municipality of São José do Norte, Brazil.

Camaquã River

The Camaquã River (Portuguese pronunciation: [kamakuˈɐ̃ or kamaˈkwɐ̃]) is a river of Rio Grande do Sul state in southern Brazil.

The delta of the river, where it empties into the Lagoa dos Patos, is protected by the 7,993 hectares (19,750 acres) Camaquã State Park, created in 1975.

Genidens planifrons

Genidens planifrons is a species of catfish in the family Ariidae. It was described by Horacio Higuchi, Enir Girondi Reis and Francisco Gerson Araújo in 1982, originally under the genus Netuma. It migrates between the Lagoa dos Patos and the region of the Atlantic Ocean which it drains into. It reaches a standard length of 57 cm (22 in).


Gymnogeophagus is a genus of cichlid fishes from South America, where they are known from various river basins (notably Rio de la Plata and Lagoa dos Patos–Mirim) in southern Brazil, Paraguay, Uruguay and northern Argentina. They are part of a group popularly known as eartheaters.

Ilha dos Marinheiros

Ilha dos Marinheiros (Portuguese pronunciation: [ˈiʎɐ duz maɾiˈɲejɾus] "Island of the Sailors") is an island located in the south part of a lagoon named Lagoa dos Patos, located in the municipality of Rio Grande, in the state of Rio Grande do Sul, Brazil. It is situated on the west bank of that lagoon. This island has an area 39.28 km² (15.17 sq mi) and is situated 1.5 km (0.93 mi) off the continent at its nearest point.

It has 1,324 inhabitants (2000 Census), the majority of Portuguese descent.

Jacuí River

The Jacuí River (Portuguese pronunciation: [ʒakuˈi]) is a river in Rio Grande do Sul state of southern Brazil. The Jacuí empties into the Guaíba River, an estuarine arm of the Lagoa dos Patos, a large coastal lagoon connected to the Atlantic Ocean.

Lagoa do Peixe National Park

Lagoa do Peixe National Park (Portuguese: Parque Nacional da Lagoa do Peixe) is a national park in the state of Rio Grande do Sul, Brazil.

It was created in 1986 to protect a wintering zone for migratory birds along the Lagoa dos Patos, the estuary of the Guaiba river or Guaíba Lake about 200 kilometres (120 mi) south of Porto Alegre.

Lagoa dos Patos, Minas Gerais

Lagoa dos Patos is a Brazilian municipality located in the north of the state of Minas Gerais. In 2007 the population was 4,448 in a total area of 599 km². It became a municipality in 1962.Lagoa dos Patos is located about 20 km. east of the São Francisco River. It is 68 km. from the nearest major population center, Pirapora at an elevation of 690 meters. Neighboring municipalities are: Jequitaí, Várzea da Palma, Buritizeiro, Ibiaí, and Coração de Jesus. Lagoa dos Patos is part of the statistical microregion of Pirapora.The most important economic activities are cattle raising and subsistence farming. The GDP in 2005 was R$14,041,000.00. There were no banking agencies in the town in 2007, while there were 81 automobiles, one of the lowest ratios in the state. In the rural area there were 248 establishments on a total area of 41,000 hectares, of which 4,000 hectares were planted in crops. Around 900 people were working in agriculture. There were 23,000 head of cattle. The main crops were rice, beans, and corn.

Municipal Human Development Index: 0.657 (2000)

State ranking: 720 out of 853 municipalities as of 2000

National ranking: 3,647 out of 5,138 municipalities as of 2000The highest ranking municipality in Minas Gerais in 2000 was Poços de Caldas with 0.841, while the lowest was Setubinha with 0.568. Nationally the highest was São Caetano do Sul in São Paulo with 0.919, while the lowest was Setubinha.In 2005 there were 03 health clinics and no hospitals.

Lagoon Mirim

Lagoon Mirim (Portuguese, pronounced [miˈɾĩː]) or Merín (Spanish, pronounced [meˈɾin]) is a large estuarine lagoon which extends from southern Rio Grande do Sul state in Brazil into eastern Uruguay. Lagoa Mirim is separated from the Atlantic Ocean by a sandy, partially barren isthmus.

The Jaguarão/Yaguarón, Tacuarí and Cebollatí Rivers empty into Lagoon Mirim, while the São Gonçalo Channel connects it with Lagoa dos Patos to the north.

Lake Guaíba

Lake Guaíba (Portuguese pronunciation: [ɡwaˈiba]) is a waterway in Rio Grande do Sul, a state in southern Brazil. It is famous for its beautiful reflection at sunset. The Guaíba is an extension of the Lagoa dos Patos, a huge coastal lagoon to the south, and although commonly referred to as a "river", the Guaíba is a lake, and is also referred to as a bay. The Jacuí River empties into the Guaíba from the north.

Porto Alegre, the capital of Rio Grande do Sul, lies on the eastern shore of the Lake Guaíba, and the city of Guaíba lies opposite Porto Alegre on the western shore. The Guaíba is navigable, and is connected to the Atlantic Ocean via the Lagoa dos Patos and its outlet channel, located farther south at Rio Grande.

List of rivers of Rio Grande do Sul

List of rivers in Rio Grande do Sul (Brazilian State).

The list is arranged by drainage basin from north to south, with respective tributaries indented under each larger stream's name and ordered from downstream to upstream. All rivers in Rio Grande do Sul drain to the Atlantic Ocean.


Macropsobrycon is a genus of characins from eastern South America. The currently described species in this genus are:

Macropsobrycon uruguayanae C. H. Eigenmann, 1915 – Uruguay, Tramandaí and Lagoa dos Patos basins.

Macropsobrycon xinguensis Géry, 1973 – Xingu River basin.

Patos (disambiguation)

Patos is a municipality in Brazil.

Patos, Los Patos may also refer to:

Patos, Albania, a town

Los Patos, Barahona, Dominican Republic, a small town

Los Patos, a mountain in the Andes between Argentina and Chile

Paso de Los Patos, a mountain pass in the Andes between Argentina and Chile

Dos Patos River (disambiguation)

Río de los Patos, Argentina, a river

Lagoa dos Patos, Brazil, a lagoon

Canal dos Patos (Macau), a short canal

Patos Island, Washington, United States

Patos Island (Venezuela)

Roman Catholic Diocese of Patos, Brazil

Rio Grande, Rio Grande do Sul

Rio Grande (lit. "Great River") is a municipality (município) and one of the oldest cities in the Brazilian state of Rio Grande do Sul. It was the state capital from 1835 to 1845. It is the most important port city in the state and has one of the most important maritime ports in Brazil.

The city is named after a nearby channel which indirectly connects the Lagoa dos Patos, to the northeast, and Lagoa Mirim, to the west, with the Atlantic Ocean. The municipality is bordered by Santa Vitória do Palmar on the south and Pelotas on the north, which lies across the São Gonçalo Channel.

The city built up its wealth over the course of its long history of strong industrial movements. Today it is still one of the richest cities in Rio Grande do Sul, mainly because of its port, the second busiest in Brazil, and its refinery, which processes Ipiranga petroleum.

The city is served by Rio Grande Airport.

Southern pipefish

Southern pipefish, Syngnathus folletti, is a pipefish species, inhabits the Southwest Atlantic near Uruguay. It is a marine subtropical demersal fish. This species has been recorded among beds of Ruppia maritima in the Lagoa dos Patos in southern Brazil, and apparently they spend the whole of their lives in sea grass beds. It is a carnivorous species which feeds mainly on copepods and isopods , although the females consume a wider variety of prey. It is an ovoviviparous fish, in which the males bear the fertilised eggs inside a brood pouch located beneath its tail. During the breeding season they are sexually dimorphic which indicates that the species is probably polygamous.

São Gonçalo Channel

The São Gonçalo Channel (Portuguese pronunciation: [sɐ̃w̃ ɡõˈsalu]) is a navigable channel connecting two large coastal lagoons, Lagoa Mirim and Lagoa dos Patos, in the state of Rio Grande do Sul in southern Brazil. At its eastern end, it separates the municipalities of Rio Grande to the south from Pelotas to the north.

São Lourenço do Sul

São Lourenço do Sul is a Brazilian municipality in the state of Rio Grande do Sul. The municipality had 43111 inhabitants in the last Census (2010). Its population in 2016 was estimated in 44,561 inhabitants. It is located at the west bank of the big lagoon Lagoa dos Patos.

The municipality contains part of the 7,993 hectares (19,750 acres) Camaquã State Park, created in 1975.


Turuçu is a Brazilian municipality in the southeastern part of the state of Rio Grande do Sul. It is nicknamed the National Capital of the Chili Pepper (Capital Nacional da Pimenta Vermelha). The population is 3,596 (2015 est.) in an area of 253.64 km². The name comes from a local Native American language. It lies close to the Lagoa dos Patos, a lagoon connected with the Atlantic Ocean.


This page is based on a Wikipedia article written by authors (here).
Text is available under the CC BY-SA 3.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.