|
|
|
|
|
| Loch,Carolina; Simões-Lopes,Paulo C.; Drehmer,César J.. |
| Cases of dental agenesis, supernumerary teeth and dental losses are presented in three species of South American Otariids: Arctocephalus australis (Zimmermann, 1783), A. tropicalis (Gray, 1872) and Otaria flavescens (Shaw, 1800). For the first time, congenital and acquired dental anomalies were comparatively diagnosed in skull samples from southern Brazil and nearby areas. The skulls and mandibles were accessed in the scientific collection of mammals of the Federal University of Santa Catarina, southern Brazil. Agenesis was found only among maxillary post-canine teeth, especially the distal ones (PC/6), due to an evolutionary trend towards reduction of the number of post-canine teeth in this family. Maxillary and mandibular supernumerary teeth were found... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arctocephalus australis; A. tropicalis; Dental agenesis; Otaria flavescens; Southern Brazil; Supernumerary teeth. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000300023 |
| |
|
|
| Vianna,Thaís dos S.; Loch,Carolina; Castilho,Pedro V. de; Gaidzinski,Morgana C.; Cremer,Marta J.; Simões-Lopes,Paulo C.. |
| ABSTRACT Marine mammal strandings provide valuable insights into local biodiversity. Strandings can be caused by both natural and anthropogenic factors. In the state of Santa Catarina, Southern Brazil, organized marine mammal collections started in the 1980s through opportunistic and non-systematic collection efforts, representing a record of over 30 years of marine biodiversity. This study aimed to perform a preliminary review of 32 years of stranding records within this region. The secondary aim was to elucidate the stranding dynamics of the three most commonly recorded species. A total of 460 records were obtained, representing 17 species of odontocetes. The species registered most frequently were the franciscana, Pontoporia blainvillei (Gervais &... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bycatch; Marine mammals; Pontoporia blainvillei; Sotalia guianensis; Tursiops truncatus. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000500601 |
| |
|
|
|
