Neonatal line may develop after birth in the Indo-Pacific bottlenose dolphin (Tursiops aduncus)
| Autor: | Alessia Ciraolo, Catherine M. Kemper, Stefania Milano |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
biology Zoology Neonatal line biology.organism_classification Bottlenose dolphin 010603 evolutionary biology 01 natural sciences 03 medical and health sciences 0302 clinical medicine Tursiops aduncus Animal Science and Zoology 030216 legal & forensic medicine human activities Ecology Evolution Behavior and Systematics Indo-Pacific |
| Zdroj: | Canadian Journal of Zoology. 97:685-695 |
| ISSN: | 1480-3283 0008-4301 |
| Popis: | Studies using teeth to estimate age in marine mammals presume that the neonatal line (NNL) develops at birth. This study of Indo-Pacific bottlenose dolphins (Tursiops aduncus (Ehrenberg, 1833)) is the first to investigate when the NNL appears in odontocete dentine. Two to four teeth were prepared by decalcification, thin-sectioning, and staining for 103 dolphins, including 7 dolphins of known age. Tooth length, prenatal and postnatal dentine and NNL widths were measured. Developmental class (foetus, young neonate, older neonate |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|