Journal Article

Functional morphology of the Andean climbing catfishes (Astroblepidae, Siluriformes): alternative ways of respiration, adhesion, and locomotion using the mouth

Crop, W.D., Pauwels, E., Hoorebeke, L.V. and Geerinckx, T.

Record Number:
4055
Year:
2013
Journal:
Journal of Morphology
Pages:
1164–1179
Volume:
274
Abstract:
ABSTRACT Astroblepidae or “climbing catfishes” encompass a single genus of species living in high altitude rivers in the Andes of South America. They are characterized by a specialized head morphology closely resembling their better known, widely radiated sister family Loricariidae, or armored suckermouth catfishes. Existent data show that even though both families share important traits, there are some striking differences as well. Albeit poorly known, Astroblepus species possess a duplicated gill opening, and have the ability to climb vertical rocks or waterfalls. In this study, morphological and kinematic data are combined to yield insights into the functions of the mobile elements of the astroblepid head, and to compare head morphology and biomechanics with those of Loricariidae. We found that, even though there is substantial similarity in head structure of both families, there are major differences in functionally important structures. These include a different lower lip muscle configuration, an alternative oral valve system, and an incurrent gill opening only found in astroblepids. Kinematic analyses confirm that the astroblepid suckermouth, freed from its inhalatory function, offers advantages for climbing in the high-altitude environment, and is used alternately with the extremely mobile pelvic girdle, in a crawling, nonundulatory motion.
Times Cited:
2
Related Records:
Humboldt, F. H. A. (1805)Johnson, R.D.O. (1912)Johnson, R.D.O. (1912)Collette, B. B. (1962)Chardon, M. (1966)Chardon, M. (1968)Balazs, D. (1972)Balazs, D. (1974)Montoriol-Pons, J. (1976)Sket, B. (1979)Brown, P (1981)Hanson, P. D. (1981)Brown, P. and Hanson, P.D. (1981)Martinez, A., Romero, D., Romero, M. and Ribera, C. (1983)Sket, B. (1985)Peck, S. B. (1985)Peck, S. B. (1994)Cardona, L. and Guerao, G. (1994)Ribera, C and Belles, X (1994)Buitrago-Suarez, U.A. and Galvis, G. (1997)Buitrago-Suarez, U.A. and Galvis, G. (1997)Romero, A. and Paulson, K.M. (2001)Nico, L.G. (2001)Schaefer, S.A. and Buitrago-Suarez, U.A. (2002)Schaefer, S.A. and Buitrago-Suarez, U.A. (2002)Schaefer, S.A. and Arroyave, J. (2010)Schaefer, S.A., Chakrabarty, P., Geneva, A.J. and Sabaj Pérez, M.H. (2011)Schaefer, S.A., Chakrabarty, P., Geneva, A.J. and Sabaj Pérez, M.H. (2011)Haspel, G., Schwartz, A., Streets, A., Camacho, D.E. and Soares, D. (2012)Haspel, G., Schwartz, A. and Soares, D. (2012)Spadella, M.A., Oliveira, C., Ortega, H., Quagio-Grassiotto, I. and Burns, J.R. (2012)Spadella, M.A., Oliveira, C., Ortega, H., Quagio-Grassiotto, I. and Burns, J.R. (2012)Conway, K.W., Lujan, N.K., Lundberg, J.G., Mayden, R.L. et al (2012)Conway, K.W., Lujan, N.K., Lundberg, J.G., Mayden, R.L. et al (2012)Crop, W.D., Pauwels, E., Hoorebeke, L.V. and Geerinckx, T. (2013)Crop, W.D., Pauwels, E., Hoorebeke, L.V. and Geerinckx, T. (2013)Lujan, N.K. and Conway, K.W. (2015)Lujan, N.K. and Conway, K.W. (2015)Hoese, G., Addison, A., Toulkeridis, T. and Toomey, R. (2015)Robinson, J (2017)Espinasa, L., Christoforides, S. and Morfessis, S.E. (2017)Espinasa, L., Robinson, J. and Espinasa, M. (2018)Espinasa, L., Robinson, J., Soares, D., Hoese, G., Toulkeridis, T. and Toomey, R. (2018)Espinasa, L., Hoese, G., Toulkeridis, T. and Toomey, R. (2018)