Endangered
Mexclapique
Girardinichthys viviparus
Mexclapique is a splitfin in the family Goodeidae (order Cyprinodontiformes) — Girardinichthys viviparus, recorded as Endangered.
Range and habitat
It is endemic to Mexico and was originally restricted to lakes and wetlands in the Valley of Mexico, among them Lake Texcoco. Through man-made channels it was able to spread to the upper Pánuco River basin (notably Tula River and associated reservoirs). Most native populations disappeared as they were at or near Mexico City, with the waters either being reclaimed, drained, heavily polluted or infested with introduced species.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Breeding
Based on the collection of young fish for research, it is believed that there is breeding taking place all year round, excluding the coldest months.
In crisis
Today the Chapultepec splitfin is only known to survive in three lakes (Viejo, Menor and Mayor) in the Chapultepec park of Mexico City, Lake Xochimilco, Lake Zumpango, Laguna de Tecocomulco northeast of the City where perhaps introduced, and parts of the Pánuco River basin. Most of these remaining populations are small. The population located at Alameda Oriente could be impacted by possible expansion of the nearby airport.
Water pollution, water treatment, and parasites directly threaten the species. Heavy metals in wastewater pose an especial threat.
Mexclapique is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Mexclapique, Wikidata item Q3308536. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
