Journal article
Morphology of the gas bladder in thorny catfishes (Siluriformes: Doradidae)
Proceedings of the Academy of Natural Sciences of Philadelphia, v 158(1), pp 261-296
01 Apr 2009
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Abstract
The gross morphology of the gas bladder is described, illustrated, compared and categorized among 86 of 88 nominal valid and six undescribed species representing all 31 genera of Doradidae with comments on ontogenetic and taxonomic variation when observed. The putatively basal-most doradids exhibit an unmodified cordiform gas bladder. Derived taxa exhibit an impressive suite of modifications including the addition of a secondary bladder, pronounced reduction of the posterolateral chambers, internal trabeculae, associations with bony capsule-like expansions of the anterior (Weberian) vertebrae, and accessory diverticula varying widely in size, shape, abundance, and distribution. Intra-specific differences are minor, most often reflective of ontogenetic changes especially in large-size species, whereas inter-specific and inter-generic differences are significant, in many cases diagnostic, and suggestive of phylogenetic signal excepting instances of evident convergence such as gas bladder reduction in Rhynchodoras and all but one species of Leptodoras.
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Details
- Title
- Morphology of the gas bladder in thorny catfishes (Siluriformes: Doradidae)
- Creators
- Jose L. O. Birindelli - Universidade de São PauloLeandro M. Sousa - Universidade de São PauloMark H. Sabaj Perez - Drexel University
- Publication Details
- Proceedings of the Academy of Natural Sciences of Philadelphia, v 158(1), pp 261-296
- Publisher
- Academy of Natural Sciences of Philadelphia
- Number of pages
- 36
- Grant note
- DEB-0315963 / NSF; National Science Foundation (NSF) NSF Research Experience for Undergraduates; National Science Foundation (NSF) 06/53737-7; 06/04162-1 / FAPESP; Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Academy of Natural Sciences of Drexel University
- Web of Science ID
- WOS:000265344600014
- Other Identifier
- 991019330630404721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Biodiversity Conservation
- Ecology