João Vieira is an island in the

Bijagós Archipelago The Bissagos Islands, also spelled Bijagós ( pt, Arquipélago dos Bijagós), are a group of about 88 islands and islets located in the Atlantic Ocean off the coast of Guinea-Bissau. The archipelago was formed from the ancient delta of the Geb ...

Guinea-Bissau Guinea-Bissau ( ; pt, Guiné-Bissau; ff, italic=no, 𞤘𞤭𞤲𞤫 𞤄𞤭𞤧𞤢𞥄𞤱𞤮, Gine-Bisaawo, script=Adlm; Mandinka: ''Gine-Bisawo''), officially the Republic of Guinea-Bissau ( pt, República da Guiné-Bissau, links=no ) ...

. Its population is 6 (2009 census). It is part of the

João Vieira and Poilão Marine National Park João Vieira and Poilão Marine National Park ( pt, Parque Nacional Marinho João Vieira e Poilão) is a national park in Guinea-Bissau. It was established in August 2000. It covers an area of and includes the uninhabited islands of João Vieira ...

.Quadro nacional da biotecnologia e biosegurança da Guiné-Bissau
March 2008, p. 33 It lies north-northeast of the island Poilão. Other nearby islands are Meio and Cavalos. The islands are important nesting grounds for sea turtles.

References

Bolama Region Bissagos Islands {{GuineaBissau-geo-stub