The San Juan River (Spanish: Río San Juan) is a Colombian river that flows into the Pacific Ocean through the Chocó Department. It is approximately 380 kilometres (240 mi) and drains a watershed of 16,000 square kilometres (6,200 sq mi). The river drains into a large delta that covers nearly 300 square kilometres (120 sq mi). The average discharge of the Rio San Juan is 2,054.67 m3/s.
| Río San Juan | |
|---|---|
.svg) Rivers in Colombia. The mouth of the San Juan is near the center of the country's Pacific coast | |
| Location | |
| Country | Colombia |
| Region | Chocó Department |
| Physical characteristics | |
| Source | |
| • location | Cerro Caramanta, West Andes |
| Mouth | |
• location | Pacific Ocean near Buenaventura |
| Length | 380 km (240 mi) |
Basin size | 16,000 km2 (6,200 sq mi) |
| Discharge | |
| • average | 2,055 m3/s (72,600 cu ft/s) |
Geography
editThe river begins on Cerro Caramanta in the West Andes. The delta is due north of Bahía Málaga and Buenaventura.
The mouth of the river has extensive stands of mangroves, part of the Esmeraldas-Pacific Colombia mangroves ecoregion.[1]
Hydrometry
editMonthly average flow of San Juan River ( m³/second) measured at Penitas station
Data from 25 years[2]
Fauna
editReptiles
editA species of snake, Dipsas sanctijoannis, is named after the San Juan River of Colombia, and is native to the watershed.[3]
Fish
edit- Andinoacara biseriatus - A Cichlid.[4]
- Nematobrycon palmeri - the emperor tetra.[5]
See also
editReferences
edit- ↑ Carlos Borda, Northern South America: Northern Colombia, WWF: World Wide Fund for Nature, retrieved 2017-06-19
{{citation}}: CS1 maint: publisher location (link) - ↑ Unesco - San Juan River at Penitas Archived 2016-03-03 at the Wayback Machine
- ↑ Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. ("St. John", p. 254).
- ↑ Froese, Rainer; Pauly, Daniel (eds.). "Andinoacara biseriatus". FishBase. May 2017 version.
- ↑ Francisco Villa-Navarro (Universidad del Tolima) (2014-10-09). "IUCN Red List of Threatened Species: Nematobrycon palmeri". IUCN Red List of Threatened Species. Archived from the original on 2025-04-29.
External links
edit- (in English) San Juan River delta on coastal.er.usgs.gov
4°02′42″N 77°26′29″W / 4.04500°N 77.44139°W
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