Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

OAI: https://revistas.ucr.ac.cr/index.php/rbt/oai
Anatomy of the visceral cavity of Eugerres mexicanus (Teleostei: Gerreidae)
PDF
HTML

Keywords

splanchnology
mesonephros
gas bladder
digestive tract
gonads
esplacnología
mesonefros
vejiga gaseosa
tracto digestivo
gónadas

How to Cite

Kobelkowsky, A., & Terán-Martínez, J. (2020). Anatomy of the visceral cavity of Eugerres mexicanus (Teleostei: Gerreidae). Revista De Biología Tropical, 68(1), 189–199. https://doi.org/10.15517/rbt.v68i1.38548

Abstract

Introduction. The visceral cavity of teleostean fishes contains the kidneys, digestive tube and annexed glands, gas bladder, gonads, and spleen. Objective: To analyze and describe the anatomic relationships of the organs of the visceral cavity of the Mexican mojarra, Eugerres mexicanus. Methods: By means of dissections, we analyzed, described and illustrated the splanchnology of the visceral cavity of 10 adult specimens from the State of Chiapas, Mexico. Results: The visceral cavity is delimited by the precaudal vertebrae, the scapular and pelvic girdles, the pleural ribs, the first anal pterygiophore and several myotomes. Both kidneys, with extraperitoneal character are partially fused each other, and contact the neurocranium, the precaudal vertebrae, and the gas bladder. The digestive tube does not present a stomach nor pyloric caeca, and it is 1.3 the standard length of the fish. The liver has two short right lobes. Both ovaries and testes are wide and reach the liver. The spleen is ovoid and is located on the left side of the duodenum. The gas bladder has two anterior lobes, its posterior end is in direct contact with the floor of the visceral cavity, and contain the urinary bladder. Discussion: The organization of the organs in the visceral cavity is in the anatomical pattern of the teleostean fishes, however, the organ that shows the highest number of special characters is the gas bladder, which as in other species of Eugerres is large and shows two notable anterior lobes, reinforced by epipleural ribs. Compared with other species of Eugerres, the Mexican mojarra shows, as exclusive characters: a) the union of the posterior end of the gas bladder with the floor of the visceral cavity, and, b) the location of the urinary bladder within the gas bladder.

https://doi.org/10.15517/rbt.v68i1.38548
PDF
HTML

References

Alexander, R.M. (1962). The structure of the Weberian apparatus in the Cyprini. Proceedings of the Zoological Society of London, 139(3), 451-473.

Andreata, J.V., & Barbiéri, L.R.R. (1981). Osteologia do crânio de Diapterus brasilianus (Cuvier, 1830) (Perciformes, Percoidei, Gerreidae). Revista Brasileira de Biologia, 41, 565-574.

Cyrus, D.P., & Blaber, S.J.M. (1982). Mouthpart structure and function and the feeding mechanisms of Gerres (Teleostei). African Zoology, 17(3), 117-121.

González-Acosta, A.F., & Rodiles-Hernández, R. (2013). New species of Eugerres from the Usumacinta Province, Mexico and Guatemala with a redescription of E. mexicanus (Steindachner, 1863) (Teleostei: Gerreidae). Neotropical Ichthyology, 11(2), 307-318.

González-Acosta, A.F., Rubio-Rodriguez, U., & Ruiz-Campos, G. (2014). El hueso urohial de los peces Gerreidae (Teleostei: Percoidei) de América y su aplicación taxonómica. International Journal of Morphology, 32(3), 923-929.

Green, J.M. (1971). Studies on the swim bladders of Eucinostomus gula and E. argenteus (Pisces: Gerridae). Bulletin of Marine Science, 21(2), 567-590.

Gregory, W.K. (1959). Fish Skull. A study of evolution of natural mechanisms. Florida, USA: Eric Lundberg.

Helfman, G.S., Collette, B.B., Facey, D.E., & Bowen, B.W. (2009). The Diversity of Fishes. Biology, Evolution, and Ecology. Oxford, UK: Wiley Blackwell.

Hernández, R.E., Perera, M.A., Castillo, A., Luna, H., de la Cruz, J.A., Gómez, L.M., & Valdez Zenil, J. (2012). Embryonic and larval development of Eugerres mexicanus (Perciformes: Gerreidae) in Tenosique: Tabasco, Mexico. Revista de Biología Tropical, 60(1), 369-379.

Kobelkowsky, A. (2004). Osteología de la mojarra de mar, Diapterus auratus Ranzani (Teleostei: Gerreidae). Hidrobiológica, 14(1), 1-10.

Kobelkowsky, A. (2012). Morphological diversity of the ovaries of the mexican teleost fishes. International Journal of Morphology, 30(4), 1353-1362.

Kobelkowsky, A. (2013). Morphology and dissection technique of the kidney of the grey snapper Lutjanus griseus (Teleostei: Lutjanidae). International Journal of Morphology, 31(2), 553-561.

Kobelkowsky, A. & Figuero Lucero, G. (2018). Anatomía del sistema digestivo del pescado blanco Chirostoma humboldtianum (Teleostei: Atherinopsidae). Hidrobiológica, 28(1), 37-50.

Martínez-Guevara, A., García-Rodríguez, F.J., Cota-Gómez, V.M., Hernández-Gómez, R.E., Perera-García, M.A., & De La Cruz-Agüero, J. (2015). Eugerres castroaguirrei González-Acosta et Rodiles-Hernández, 2013 is a junior synonym of Eugerres mexicanus (Steindachner, 1863) (Actinopterygii: Perciformes: Gerreidae). Acta Ichthyologica et Piscatoria, 45(4), 393-401.

Miller, R.R., Minckley, W.L., & Norris, S.M. (2005). Freshwater Fishes of Mexico. Chicago: The University of Chicago Press.

Parmentier, E., Mann, K., & Mann, D. (2011). Hearing and morphological specializations of the mojarra (Eucinostomus argenteus). Journal of Experimental Biology, 214(16), 2697-2701.

Sasaki, K. (1989). Phylogeny of the family Sciaenidae, with notes on its zoogeography (Teleostei, Perciformes). Memoirs of the Faculty of Fisheries Hokkaido University, 36(1-2), 1-137.

Terán Martínez, J. (2015). Diversidad morfológica de la vejiga gaseosa en la familia Gerreidae (Pisces: Teleostei) (Master's thesis). Posgrado de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mexico City, Mexico.

Webb, J.F., Smith, W.L., & Ketten, D.R. (2006). The laterophysic connection and swim bladder of butterflyfishes in the genus Chaetodon (Perciformes: Chaetodontidae). Journal of Morphology, 267(11), 1338-1355.

Whitehead, P.J.P., & Blaxter, J.H.S. (1989). Swimbladder form in clupeoid fishes. Zoological Journal of the Linnean Society, 97(4), 299-372.

Wilson, J.M., & Castro, L.F.C. (2010). Morphological diversity of the gastrointestinal tract in fishes. In M. Grosell, A.P. farrell, & C.J. Brauner (Eds.), Fish physiology (Vol. 30, pp. 1-55). London, UK: Academic Press.

Winterbottom, R. (1974). A descriptive synonymy of the striated muscles of the Teleostei. Proceedings of the Academy of Natural Sciences of Philadelphia, 125(12), 225-317.

Comments

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright (c) 2020 Abraham Kobelkowsky

Downloads

Download data is not yet available.