Original description as Herichthys tamasopoensis:
- Artigas Azas, Juan Miguel. 1993. "Herichthys tamasopoensis n. sp., a new cichlid from México (Pisces, Cichlidae)". The Cichlids Yearbooks. 3; pp. 65-70 (crc00259)
Conservation: Herichthys tamasopoensis is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (VU) vulnerable (2018). Not listed in the Mexican Official Norm NOM-059-ECOL-2001.
For many years, the untreated or badly treated wastes of sugar mills, plus the pesticides and fertilizers used in sugar cane growing have destroyed many ecosystems in Mexico, and the Rio Gallinas, one of the most beautiful areas, has not been an exception. Although conditions have improved somewhat due to the area being promoted in recent times as a touristic destination.
Another problem is that every year more areas on the sides of the tropical forest mountains surrounding the valley are being cut for agricultural or cattle raising, with the consequent run off of soil and sediments that change the rivers’ physiognomy and ecology.
Tourism had brought some problems too. Garbage left by indifferent people after picnics in the popular places along the Rio Gallinas is also a common problem and although some areas are being cleaned up by local inhabitants, the overall incredibly beauty of the area is being lost slowly but surely, bit by bit every year. If you could see how I first saw this area 30 years ago, and how it is in comparison today, you would not have any other choice but to be depressed.
Unfortunately there are a number of exotic species that only seem to increase in number with time. Initially in the second half of the XX century Oreochromis species were promoted by the Mexican government as an aquaculture subject, they are found in the river thankfully in small numbers. Other species are more recent additions and much more successful in colonizing, like Flexipennis vittatus and Poeciliopsis gracilis.