TURNER, 1946 English name:
Leopard Goodeid Family:
Goodeidae JORDAN, 1923. Subfamily:
Goodeinae JORDAN, 1923. Original description:
TURNER, C. L. (1946): A contribution to the taxonomy and zoogeography of the goodeid fishes.
Occ. Pap. Mus. Zool. Mich. No. 495, 15 pp. Origin of the species name:
named resolanae after the Rio Resolana. Type locality:
Rio Resolana, 25 km west of the town Autlan, Jalisco, Mexico. Meristic properties:
Dorsal fin = 13 rays,
Anal fin = 16 rays,
Pectoral fin = 16 rays,
Caudal fin = 35 rays.
In their natural environment these Goodeids live in small, clear tributaries of the Rio Resolana. The flora of the habitat consists of a lot of dense Ceratophyllum and green algae. The rather robust looking fish have a big, round head and in comparison with Ameca, Chapalichthys and Xenoophorus a relatively small dorsal fin. The males reach a size of approx. 5 cm, the females of approx. 6 cm. Because of the strong aggressiveness of this fish, Xenotaenia resolanae should only be kept in aquariums of at least 100 liters. In addition, many plants, stone constructions and roots should provide sufficient hiding places. If the aquarium is too small or lacks enough hiding places the aggressive males will perform excessive fights in which they sometimes kill each other. Xenotaenia resolanae displays now and then a tendency to nip the fins of other tankmates. So keeping them in a species tank is probably not recommended. Since this species may fall ill with fish tuberculosis more easily than other Goodeids, regular water changes should be carried out. The water should be hard, the ph value neutrally to slightly alkaline. The temperatures should vary between 20 °C and 25 °C. For food chiefly live or frozen food should be given. Breeding is not difficult. After 7 to 8 weeks 20 to 30 young are delivered, which are intensively pursued by the older fish. This makes it advisable to separate pregnant females into special tanks offering the fry many hiding places (plants, stones, roots, etc.). One hobbyist reported that Xenotaenia resolanae strongly pursued the released fry when they had been fed fresh or frozen live food. Then, due to extraordinary circumstances, for weeks the fish were fed with dried food only. The consequence was that the older fish did not or only slightly pursues their young. This was an interesting observation. BRIAN KABBES observed only one population of Xenotaenia resolanae in one habitat in Mexico. It was striking that the prevailing population consisted of immature fish. Fully-grown specimen could only be found sporadically. Whether this is generally so or appears only within this population cannot be said. Further investigations will certainly help to clarify this. Xenotaenia resolanae has a strong preference for quickly flowing water. It is also striking that this species is found in the upper reaches and middle courses of streams and brooks of the Rio Cuitzmala, the Rio Purification and the Rio Marabasco system only, while it is missing in the lower courses completely. These biotopes are very similar in their water parameters. It remains unclear why Xenotaenia resolanae is not found in the lower courses. Probably external factors are decisive in this absence. The species is considered fairly robust. Taken from: Aqualog publishing company
Title: all Livebearers and Halfbeaks,
Photo by: P. Schubert.
Habitat: Rio Purificación, Rio Chacala, Jalisco, Mexico,
Bred in captivity, male, 6 cm. Taken from: Aqualog publishing company
Title: all Livebearers and Halfbeaks,
Photo by: E. Puerzl.
Habitat: Rio Purificacíón, Rio Chacala, Jalisco, Mexico,
Bred in captivity, male, 6 cm. Taken from: Aqualog publishing company
Title: all Livebearers and Halfbeaks,
Photo by: J. Dawes.
Habitat: Rio Purificación, Rio Chacala, Jalisco, Mexico,
Bred in captivity, female, 6 cm. Taken from: Aqualog publishing company
Title: all Livebearers and Halfbeaks,
Photo by: O. Boehm.
Habitat: Rio Purificación, Rio Chacala, Jalisco, Mexico,
Bred in captivity, male, 6 cm. Taken from: Aqualog publishing company
Title: all Livebearers and Halfbeaks,
Photo by: O. Boehm.
Habitat: Rio Purificación, Rio Chacala, Jalisco, Mexico,
Bred in captivity, female, 6 cm. |
