Education

Ph.D. Stanford University, 1960
M.A. University of California, Berkeley, 1953
B.A. University of California, Berkeley, 1951

Research Interests

The following research topics are my primary interests and published products: Systematics, comparative gross anatomy (osteology, etc.) of the entire specimens, plus the tissue histology of gonads and ultrastructure of reproductive cells, reproductive modes, and secondary reproductive organ (for example male courtship pheromone organs) and biogeography of inseminating and non-inseminating Neotropical fishes of the order Characiformes. This data is also used for proposing and publishing hypotheses of evolutionary relationships among the members of especially the freshwater fish family Characidae. This research has essentially answered questions about various aspects of their diverse reproductive modes, provided new insights about their phylogenetic relationships and initiated a beginning base for some biogeographical studies of South American freshwater fishes.

Selected Publications

Weitzman, S. H., N. A. Menezes, & J. R. Burns. 2006. Ein neuer Aquarienfisch und die Auswirkungen auf die Systematik der Salmler. Amazonas. 1(6): 25-33. Natur und Teir-Verlag GmbH, Münster, Germany.

Burns, J. R. & S. H. Weitzman. 2006. Intromittent organ in the genus Monotocheirodon (Characiformes: Characidae). Copeia (2006), 3: 529-534.

Weitzman, S. H., N. A. Menezes, H.-G. Evers & J. R. Burns. 2007. Um novo belo Characideo Brasileiro coma uma glândula na nadadeira anal nos machos, um resumo de seu modo de reprodução e complexidade de sua relação autros caracídeos. Habitat, XIV, no. 81:21-29. Rio de Janeiro.

Javonillo, R., J. R. Burns & S. H. Weitzman. 2007. Reprodictive Morphology of Brittanichthys axelrodi (Teleostei: Characidae), a miniature inseminating fish from South America. Journal of Morphology, 268, 23-32.

Weitzman, S. H. 2007. Die Gruppe der Neonsalmler – Entdeckung – Erstbeschreibung – Verwandtschaftsbeziehungen. Amazonas 10:14-21.

Menezes, N. A., S. H. Weitzman, O. T. Oyakawa, C. T. de Lima, R. M. C. Castro, & M. J. Weitzman. 2007. Peixes de Água Doce da Mata Atlântica. Lista Preliminar das Espécies e Comentários Sobre Conservação de Peixes de Água Doce Neotropicas. English title = Freshwater Fishes of Mata Atlântica. Preliminary List of Species and Comments on Conservation of Neotropical Freshwater Fishes. 407 pages. Museu de Zoologia, Universidade de São Paulo, São Paulo, Brazil.