Subterranean Fishes of the World

Journal Article

Morphological and functional diversity of the mandible in suckermouth armored catfishes (Siluriformes: Loricariidae)

Lujan, N.K. and Armbruster, J.W.

Record Number:

5257

Year:

2012

Journal:

Journal of Morphology

Pages:

24-39

Volume:

273

PMCID:

http://doi.org/10.1002/jmor.11003

Abstract:

ABSTRACT We examined the mandibles of 377 individuals representing 25 species, 12 genera, 5 tribes, and 2 subfamilies of the Loricariidae, a species-rich radiation of detritivorous–herbivorous neotropical freshwater fishes distinguished by having a ventral oral disk and jaws specialized for surface attachment and benthic feeding. Loricariid mandibles are transversely oriented and bilaterally independent, each rotating predominantly around its long axis, although rotational axes likely vary with mandibular geometry. On each mandible, we measured three traditional and three novel morphological parameters chosen primarily for their functional relevance. Five parameters were linear distances and three of these were analogous to traditional teleost in- and out-levers for mandibular adduction. The sixth parameter was insertion area of the combined adductor mandibulae muscle (AMarea), which correlated with adductor mandibulae volume across a subset of taxa and is interpreted as being proportional to maximum force deliverable to the mandible. Multivariate analysis revealed distributions of phylogenetically diagnosed taxonomic groupings in mandibular morphospace that are consistent with an evolutionary pattern of basal niche conservatism giving rise to multiple adaptive radiations within nested clades. Correspondence between mandibular geometry and function was explored using a 3D model of spatial relationships among measured parameters, potential forces, and axes of rotation. By combining the model with known loricariid jaw kinematics, we developed explicit hypotheses for how individual parameters might relate to each other during kinesis. We hypothesize that the ratio [AMarea/tooth row length2] predicts interspecific variation in the magnitude of force entering the mandible per unit of substrate contacted during feeding. Other newly proposed metrics are hypothesized to predict variation in aspects of mandibular mechanical advantage that may be specific to Loricariidae and perhaps shared with other herbivorous and detritivorous fishes. J. Morphol. 273:24–39, 2012. 2011Wiley Periodicals, Inc. KEY WORDS: evolutionary novelty; functional morphology; jaw diversity; jaw mechanics; durophagy; model

Times Cited:

Relevent Species:

Ancistrus cryptophthalmus Reis 1987 Ancistrus formoso Sabino and Trajano 1997 Ancistrus galani Perez and Viloria 1994 Ancistrus undescribed species Bodoquena [Cordeiro, Borghezan and Trajano 2014]Chaetostoma undescribed species [Lujan 2017 pers. comm.]

Related Records:

Sket, B. (1979)

[Fauna in the Caverna de Jumandi]

Brown, P. and Hanson, P.D. (1981)

The Jumandi Cave of Ecuador

Brown, P (1981)

Southampton University expedition to Ecuador 1979

Hanson, P. D. (1981)

The aquatic fauna

Peck, S. B. (1985)

The invertebate fauna of the tropical American caves. Part 6:Jumandi Cave, Ecuador

Sket, B. (1985)

Bogidiella (s.l.) gammariformis sp. n. (Amphipoda) from Ecuador

Reis, R. E. (1986)

Uma nova especie de Ancystrus de caverna: o primeiro Loricariidae cego (Pisces, Siluriformes)

Reis, R. E. (1987)

Ancistrus cryptophthalmus sp. n., a blind mailed catfish from the Tocantins river basin, Brazil (Pisces, Siluriformes,Loricariidae)

Rodriguez, G. and Bosque, C. (1990)

A stygobiont crab Chaceus caecus n. sp. and its related stygophile species Chaceus motiloni Rodriguez, 1980 (Crustacea, Decapoda, Pseudothelphusidae) from a cave in the Cordillera de Perija, Venezuela

Bleckmann, H., Niemann, U. and Fritzsch, B. (1991)

Peripheral and central aspects of the acoustic and lateral line system of a bottom dwelling catfish, Ancistrus sp.

Bleckmann, H., Niemann, U. and Fritzsch, B. (1991)

Peripheral and central aspects of the acoustic and lateral line system of a bottom dwelling catfish, Ancistrus sp.

Bleckmann, H., Niemann, U. and Fritzsch, B. (1991)

Peripheral and central aspects of the acoustic and lateral line system of a bottom dwelling catfish, Ancistrus sp.

Bleckmann, H., Niemann, U. and Fritzsch, B. (1991)

Peripheral and central aspects of the acoustic and lateral line system of a bottom dwelling catfish, Ancistrus sp.

Viloria, A., Herrera, F. and Galan, C. (1992)

Resultados preliminares del estudio del material biologico colectado en Mesa Turik y Cuenca del Rio Socuy

Trajano, E. (1994)

Comparative study of the brain and olfactory organ of the troglobitic catfish Pimelodella kronei (Ribeiro, 1907) and its putative ancestor P. transitoria (Ribeiro, 1912) (Siluriformes, Pimelodidae)

Muller, S., Rapp Py-Daniel, L.H. and Zuanon, J. (1994)

Ancistrus ranunculus, a new species of loricariid fish (Siluriformes: Loricariidae) from the Xingú and Tocantins rivers, Brazil

Perez, A. and Viloria, A. (1994)

Ancistrus galani n. sp. (Siluriforme: Loricariidae), with comments on biospeological explorations in western Venezuela

Trajano, E. and de Souza, A. M. (1994)

Behaviour of Ancistrus cryptophthalmus an armoured blind catfish from caves of central Brazil, with notes on syntopic Trichomycterus sp. (Siluriformes, Loricariidae, Trichomycteridae)

Sabino, J. and Trajano, E. (1997)

A new species of blind armoured catfish, genus Ancistrus, from caves of Bodoquena region, Mato Grosso do Sul, southwestern Brazil (Siluriformes, Loricariidae, Ancistrinae)

Sabino, J. and Trajano, E. (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. (1997)

Light reaction in Brazilian cave fishes (Siluriformes: Pimelodidae, Trichomycteridae, Loricariidae)

Trajano, E. (2001)

Habitat and population data of troglobitic armored cave catfish, Ancistrus cryptophthalmus Reis, 1987, from central Brazil (Siluriformes: Loricariidae)

Bessa, E. and Trajano, E. (2001)

Light recation and cryptobiotic habitats in armoured catfishes, genus Ancistrus, from caves in central and north-eastern Brazil

Bessa, E. and Trajano, E. (2001)

Light reaction and cryptobiotic habits in two cave-dwelling Brazilian armoured catfishes, genus Ancistrus (Siluriformes: Loricariidae)

Bessa, E. and Trajano, E. (2001)

Light recation and cryptobiotic habitats in armoured catfishes, genus Ancistrus, from caves in central and north-eastern Brazil

DoNascimiento, C., Villarreal, O. and Provenzano, F. (2001)

Descripcion de una nueve especie de bagre anoftalmo del genero Trichomycterus (Siluriformes, Trichomycteridae), de una vueva de la Sierra de Perija, Venezuela

Bessa, E. and Trajano, E. (2001)

Light reaction and cryptobiotic habits in two cave-dwelling Brazilian armoured catfishes, genus Ancistrus (Siluriformes: Loricariidae)

Moller, D. and Parzefall, J. (2001)

Single or multiple origin of the subterranean catfish Ancistrus cryptophthalmus. What we can learn from molecular data

Romero, A. and Paulson, K.M. (2001)

Humbodt's alleged subterranean fish from Ecuador

Fernandez, L. and Bichuette, M.E. (2002)

A new cave dwelling species of Ituglanis from the Sao Domingos karst, central Brazil (Siluriformes: Trichomycteridae)

Trajano, E and Reis, RE (2002)

Geometric morphometric study of epigean and cave populations of armoured catfish genus Ancistrus from the Sao Domingos karst area, upper Tocantins basin, central Brazil (Siluriformes: Loricariidae)

Bichuette, M.E. and Trajano, E (2003)

Epigean and subterranean ichthyofauna from the Sao Domingos karst area, Upper Tocantins River basin, central Brazil

Armbruster, J.W. (2004)

Phylogenetic relationships of the suckermouth armoured catfishes (Loricariidae) with emphasis on the Hypostominae and the Ancistrinae

Armbruster, J.W. (2004)

Phylogenetic relationships of the suckermouth armoured catfishes (Loricariidae) with emphasis on the Hypostominae and the Ancistrinae

Armbruster, J.W. (2004)

Phylogenetic relationships of the suckermouth armoured catfishes (Loricariidae) with emphasis on the Hypostominae and the Ancistrinae

Armbruster, J.W. (2004)

Phylogenetic relationships of the suckermouth armoured catfishes (Loricariidae) with emphasis on the Hypostominae and the Ancistrinae

Armbruster, J.W. (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. (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.

Reis, R.E., Trajano, E. and Hingst-Zaher, E. (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.

Reis, R.E., Trajano, E. and Hingst-Zaher, E. (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.

Reis, R.E., Trajano, E. and Hingst-Zaher, E. (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.

Trajano, E. and Bichuette, M.E. (2007)

Population ecology of cave armoured catfish, Ancistrus cryptophthalmus Reis 1987, from central Brazil (Siluriformes: Loricariidae)

Borghezan, R. (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.

Borghezan, R. (2008)

Cordeiro, L.M (2008)

Fauna cavernıcola da Serra da Bodoquena: revisao bibliografica e um estudo de ecologia de comunidades.

Felice, V., Visconti, M.A. and Trajano, E. (2008)

Mechanisms of pigmentation loss in subterranean fishes

Felice, V., Visconti, M.A. and Trajano, E. (2008)

Mechanisms of pigmentation loss in subterranean fishes

Galán, C., Herrera, F. and Rincón, A. (2009)

Biodiversidad y biomasa global de la Cueva de Los Laureles (Sierra de Perijá, Venezuela)

Secutti, S. and Trajano, E. (2009)

Reproductive behavior, development and eye regression in the cave armored catfish, Ancistrus cryptophthalmus Reis, 1987 (Siluriformes: Loricariidae), breed in laboratory

Trajano, E. and Bichuette, M.E. (2010)

Subterranean fishes of Brazil

Lujan, N.K. and Armbruster, J.W. (2012)