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| Registros recuperados: 1.204 | |
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| Navia,Andrés Felipe; Mejía-Falla,Paola Andrea; Hleap,José Sergio. |
| ABSTRACT In order to investigate zoogeographical patterns of the marine elasmobranch species of Colombia, species richness of the Pacific and Caribbean and their subareas (Coastal Pacific, Oceanic Pacific, Coastal Caribbean, Oceanic Caribbean) was analyzed. The areas shared 10 families, 10 genera and 16 species of sharks, and eight families, three genera and four species of batoids. Carcharhinidae had the highest contribution to shark richness, whereas Rajidae and Urotrygonidae had the greatest contribution to batoid richness in the Caribbean and Pacific, respectively. Most elasmobranchs were associated with benthic and coastal habitats. The similarity analysis allowed the identification of five groups of families, which characterize the elasmobranch... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Batoids; Beta diversity; Historical biogeography; Richness; Sharks; Vagility. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000200215 |
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| Fukakusa,Clayton Kunio; Mazzoni,Talita Sarah; Malabarba,Luiz Roberto. |
| Abstract Most teleosts are externally fertilizing, with internal fertilization occurring as a relatively rare event. Until now, Euteleosteomorpha is the only teleost cohort known to undergo internal fertilization. In the teleost cohort Otomorpha, it has been recorded the presence of sperm in the ovaries of some species of Characiformes and Siluriformes, but no fertilized eggs have been found so far in the female reproductive tract. It has been presumed that oocytes can be released into the water with associated spermatozoa and only there becomes fertilized, and the term insemination has been used to characterize the strategy adopted by these fish. Here, we present the discovery of the first case of internal fertilization in the teleost cohort Otomorpha, in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Characiformes; Insemination; Ostariophysi; Reproduction; Spawning. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000100209 |
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| Registros recuperados: 1.204 | |
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