Ameca River

The Ameca River (Spanish: Río Ameca) is a river of some 230 km (140 mi) in length in western Mexico. It originates in the Bosque de la Primavera in Jalisco, 23 km to the west of state capital Guadalajara; flows through the city of Ameca; and then forms the boundary between Jalisco and Nayarit on its way to the Pacific Ocean, where it drains into the Bahía de Banderas at Puerto Vallarta, Jalisco. Its main tributaries are the Ahuacatlán and Amatlán de Cañas.

Ameca River
View of the Ameca River
Ameca River is located in Mexico
Ameca River
Location of mouth
Location
CountryMexico
StateJalisco
Physical characteristics
Mouth 
 • coordinates
20°40′21″N 105°16′52″W
Length230 km (140 mi)

The Ameca has been dammed just north of the town of La Vega, Jalisco, forming a reservoir, the Lago La Vega which extends northward to the town of Teuchitlán.

Fish

Several species of fish are only found in the Ameca River basin: the butterfly splitfin, Tequila splitfin, finescale splitfin, banded allotoca, golden skiffia, Amatlan chub, Ameca chub and Ameca shiner. All these are highly threatened.[1][2]

The Tequila splitfin, finescale splitfin and golden skiffia are likely already extinct in the wild; but all three survive in captivity.[3][4][5] The butterfly splitfin and banded allotoca were also thought to be extinct in the wild, but have since been rediscovered.[6][7] The Ameca shiner was once feared entirely extinct, but it too survives in captivity.[3][8] A reintroduction project for the shiner and Tequila splitfin was initiated in 2015.[3]

References
  1. Pérez-Rodríguez, R.; G. Pérez-Ponce de León; O. Domínguez-Domínguez; I. Doadrio (2009). "A new species of Algansea (Actinopterygii: Cyprinidae) from the Ameca River basin, in Central Mexico". Revista Mexicana de Biodiversidad. 80: 483–490.
  2. López-López, E.; J. Paulo-Maya (2001). "Changes in the Fish Assemblages in the Upper Río Ameca, Mexico". Journal of Freshwater Ecology. 16 (2): 179–187. doi:10.1080/02705060.2001.9663803.
  3. "Zoogoneticus tequila". Goodeid Working Group. Retrieved 27 September 2018.
  4. "Allodontichthys polylepis". Goodeid Working Group. Retrieved 27 September 2018.
  5. "Skiffia francesae". Goodeid Working Group. Retrieved 27 September 2018.
  6. "Ameca splendens". Goodeid Working Group. Retrieved 27 September 2018.
  7. "Allotoca goslinei". Goodeid Working Group. Retrieved 27 September 2018.
  8. "Mexico Fish Ark Project". Chester Zoo. Archived from the original on 28 September 2018. Retrieved 27 September 2018.


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