Teratogenic processes in an embryo without gills and low yolk absorption of Zapteryx brevirostris (Elasmobranchii: Rhinobatidae)
| Autor: | Wanessa Priscila David do Carmo, Luís Fernando Fávaro |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Brazilian Journal of Oceanography, Vol 63, Iss 4, Pp 497-500 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1982-436X 1679-8759 |
| DOI: | 10.1590/S1679-87592015082206304 |
| Popis: | Abstract This is the first report of morphological anomaly in embryos of Zapteryx brevirostris (Lesser guitarfish), a very common species in Brazil. The gills were absent, and the pectoral fins were not fully formed nor were they completely fused to the head. They were asymmetrical, with the larger left pectoral fin projecting more toward the head (almost at the height of the eyes). The pelvic fin was absent, making sexing impossible. The cause of the morphological deformity is uncertain, although a nutritional problem of the embryo is evoked. |
| Databáze: | Directory of Open Access Journals |
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