Ancistrus formoso
Sabino and Trajano 1997
| ORDER | SUB-ORDER | FAMILY |
|---|---|---|
| Siluriformes | Loricarioidei | Loricariidae |
Synonyms
None.
Country
BrazilTypes
Holotype: MZUSP 51836 72.8mm SL. Paratype MZUSP (?) no number 79mm SL.
Distribution
Type locality: Buraco do Ducho cave, Serra da Bodoquena, Municipio de Bonito, Mato Grosso do Sul, Brazil (21o8’S, 56o28’W). Collected also from the Formosinho Resurgence in the same area. These caves are hydrologically related. Known also from N, Rio Formoso on the Formoso River drainage (Cordeiro, Borghezan and Trajano 2014).
Habitat
This species lives in flooded caves forming the Formoso system. These caves belong to the Paraguai River basin and are accessible only by diving to depths of up to 120m. Troglomorphic fishes are found between 15m and 40m depth but are commonest below 30m. The phreatic passages inhabited by these fishes have smooth walls with few refugia and the fishes are seen on the walls. Potential predators, e.g. Rhamdia quelen (Heptapterinae) and Hoplerythrinus unitaeniatus (Erythrinidae) may reach depth of up to 45m but most are restricted to the twilight zone where A. formoso is not usually seen (Bessa and Trajano 2001, 2002).
Systematics
This species is highly stygomorphic. Individuals are totally anophthalmic and depigmented. One specimen was a true albino (see Trajano and De Pinna 1996 for a discussion of depigmentation and albinism). The high degree of stygomorphism suggests that this species has been isolated in the subterranean habitat for a long period (Bessa and Trajano 2002).
Conservation Status
[NE] [VU D2:3.1:2011]
“Ancistrus formoso is endemic to Brazil, known only from the caves system of the Formoso River, MS, located outside the Bodoquena National Park. The area of occupation is less than 10 km2. Limestone mining for cement production is expanding in the region, setting itself up as a potential future plausible threat. Protecting the cave system from the surroundings of the Parna da Bodoquena is essential for the conservation of the species, through the expansion of Parna or the creation of some conservation unit. The species is classified as Vulnerable (VU) under criterion D2. [Google Translate]
Museum Holdings
As above only.
Internet Resources
Web page for the Family Loricariidae
Key References
- Bleckmann, H., Niemann, U. and Fritzsch, B. (1991)
- Sabino, J. and Trajano, E. (1997)
- Trajano, E. and Gerhard, P. (1997)
- Bessa, E. and Trajano, E. (2001)
- Bessa, E. and Trajano, E. (2001)
- Armbruster, J.W. (2004)
- Reis, R.E., Trajano, E. and Hingst-Zaher, E. (2006)
- Felice, V., Visconti, M.A. and Trajano, E. (2008)
- Borghezan, R. (2008)
- Lujan, N.K. and Armbruster, J.W. (2012)
- von Schimonsky, D.M. and Bichuette, M.E. (2013)
- Cordeiro, L.M., Borghezan, R. and Trajano, E. (2013)
- Borghezan. R. (2013)
- Cordeiro, L.M., Borghezan, R. and Trajano, E. (2014)
- Trajano, E., Gallao, J.E. and Bichuette, M.E. (2016)
- Gallão, J.E. and Bichuette M.E. (2018)
- Splendore de Borba, R., Mariotto, S., Centofante, L., Zawadzki C.H. and Parise-Maltempi, P.P. (2019)
- Mendes, I.S., Prosdocimi, F., Schomaker-Bastos, A., Furtado, C., Ferreira, R.L., .Pompeu, P.S. and Carvalho, D.C. (2019)
- Glugoski, L., Deon, G., Schott, S., Vicari, M.R., Nogaroto, V. and Moreira-Filho, O. (2020)
- Meng, F., Yin, X., Zhang, T., Zhao, C., Xue, X., Xia, X., Zhu, X., Duan, Z., Liu, B. and Liu, Y. (2021)
- Santos da Silva, K., Glugoski, L., Vicari, M.R., de Souza, A.C.P., Noronha, R.C.R., Pieczarka, J.C. and Nagamachi, C.Y. (2022)
| Bleckmann, H., Niemann, U. and Fritzsch, B. | Journal Article | 1991 | Peripheral and central aspects of the acoustic and lateral line system of a bottom dwelling catfish, Ancistrus sp. |
| Sabino, J. and Trajano, E. | Journal Article | 1997 | A new species of blind armoured catfish, genus Ancistrus, from caves of Bodoquena region, Mato Grosso do Sul, southwestern Brazil (Siluriformes, Loricariidae, Ancistrinae) |
| Trajano, E. and Gerhard, P. | Journal Article | 1997 | Light reaction in Brazilian cave fishes (Siluriformes: Pimelodidae, Trichomycteridae, Loricariidae) |
| Bessa, E. and Trajano, E. | Conference Proceedings | 2001 | Light reaction and cryptobiotic habits in two cave-dwelling Brazilian armoured catfishes, genus Ancistrus (Siluriformes: Loricariidae) |
| Bessa, E. and Trajano, E. | Journal Article | 2001 | Light recation and cryptobiotic habitats in armoured catfishes, genus Ancistrus, from caves in central and north-eastern Brazil |
| Armbruster, J.W. | Journal Article | 2004 | Phylogenetic relationships of the suckermouth armoured catfishes (Loricariidae) with emphasis on the Hypostominae and the Ancistrinae |
| Reis, R.E., Trajano, E. and Hingst-Zaher, E. | Journal Article | 2006 | Shape variation in surface and cave populations of the armoured catfish Ancistrus (Siluriformes: Loricariidae) from the São Domingos karst area, Upper Tocantins River, Brazil. |
| Felice, V., Visconti, M.A. and Trajano, E. | Journal Article | 2008 | Mechanisms of pigmentation loss in subterranean fishes |
| Borghezan, R. | Thesis | 2008 | Caracterizacao da ictiocenose em poc¸oes da Gruta das Fadas e aspectos biologicos de Rhamdia sp. (Siluriformes: Heptapteridae) e Ancistrus sp. (Siluriformes: Loricariidae), Serra da Bodoquena, Mato Grosso do Sul. |
| Lujan, N.K. and Armbruster, J.W. | Journal Article | 2012 | Morphological and functional diversity of the mandible in suckermouth armored catfishes (Siluriformes: Loricariidae) |
| von Schimonsky, D.M. and Bichuette, M.E. | Journal Article | 2013 | A expressão do comportamento agonístico em Ituglanis ramiroi Bichuette and Trajano 2004 (Siluriformes: Trichomycteridae) e sua aplicação para conservação |
| Cordeiro, L.M., Borghezan, R. and Trajano, E. | Journal Article | 2013 | Distribuição, riqueza e conservação dos peixes troglóbios da Serra da Bodoquena, MS (Teleostei: Siluriformes). Distribution, richness and conservation of troglobitic fishes from Serra da Bodoquena, MS (Teleostei) |
| Borghezan. R. | Thesis | 2013 | Ecologia populacional e cornportamento de peixes subterraneos, Rhamdia sp. n. e Ancistrus sp. n. da area carstica da Serra da Bodoquena, Mato Grosso do Sul (Siluriformes: Heptapteridae, Loricariidae) |
| Cordeiro, L.M., Borghezan, R. and Trajano, E. | Journal Article | 2014 | Subterranean biodiversity in the Serra da Bodoquena karst area, Paraguay river basin, Mato Grosso do Sul, Southwestern Brazil |
| Trajano, E., Gallao, J.E. and Bichuette, M.E. | Journal Article | 2016 | Spots of high biodiversity of troglobites in Brazil: the challenge of measuring subterranean diversity |
| Gallão, J.E. and Bichuette M.E. | Journal Article | 2018 | Brazilian obligatory subterranean fauna and threats to the hypogean environment |
| Splendore de Borba, R., Mariotto, S., Centofante, L., Zawadzki C.H. and Parise-Maltempi, P.P. | Journal Article | 2019 | Molecular discrimination of Ancistrus lineages (Siluriformes: Loricariidae) using barcode DNA tool |
| Mendes, I.S., Prosdocimi, F., Schomaker-Bastos, A., Furtado, C., Ferreira, R.L., .Pompeu, P.S. and Carvalho, D.C. | Journal Article | 2019 | On the evolutionary origin of Neotropical cavefish Ancistrus cryptophthalmus (Siluriformes, Loricariidae) based on the mitogenome and genetic structure of cave and surface populations |
| Glugoski, L., Deon, G., Schott, S., Vicari, M.R., Nogaroto, V. and Moreira-Filho, O. | Journal Article | 2020 | Comparative cytogenetic analyses in Ancistrus species (Siluriformes: Loricariidae) |
| Meng, F., Yin, X., Zhang, T., Zhao, C., Xue, X., Xia, X., Zhu, X., Duan, Z., Liu, B. and Liu, Y. | Journal Article | 2021 | The first determination and analysis of the complete mitochondrial genome of Ancistrus temmincki (Siluriformes:Loricariidae) |
| Santos da Silva, K., Glugoski, L., Vicari, M.R., de Souza, A.C.P., Noronha, R.C.R., Pieczarka, J.C. and Nagamachi, C.Y. | Journal Article | 2022 | Chromosomal diversification in Ancistrus species (Siluriformes: Loricariidae) Inferred from repetitive sequence analysis |