Osteology of the gray dolphin, Sotalia Fluviatis Gervais, 1853, from the coast of Ceará State, Brazil

Authors

  • Francisco José Capibaribe Ávila Pesquisador da Associação de Pesquisa e Preservação de Ecossistemas Aquáticos (AQUASIS), SESC-Iparana, Praia de Iparana, Caucaia, CE 61600-000, Brasil
  • Tarcísio Teixeira Alves Júnior Pesquisador da Associação de Pesquisa e Preservação de Ecossistemas Aquáticos (AQUASIS), SESC-Iparana, Praia de Iparana, Caucaia, CE 61600-000, Brasil
  • Cristiano Leita Parente Pesquisador da Associação de Pesquisa e Preservação de Ecossistemas Aquáticos (AQUASIS), SESC-Iparana, Praia de Iparana, Caucaia, CE 61600-000, Brasil
  • Letícia de Almeida Leão Vaz Pesquisador da Universidade Federal de Uberlândia, Minas Gerais
  • Cassiano Monteiro Neto Departamento de Biologia Marinha, Universidade Federal Fluminense, Caixa Postal 100.644, Niterói, RJ 24001-970, Brasil

DOI:

https://doi.org/10.32360/acmar.v35i1-2.30935

Keywords:

osteology, Sotalia fluviatilis, cetaceans, Brazil

Abstract

The osteology of the gray dolphin (Sotalia fluviatilis Gervais 1853) was described with details and emphasis on the main characteristics of the Family Delphinidae. A total of 32 skeletons from the osteologic collection of the Research and Preservation of Aquatics Ecossistems Association (AQUASIS), were used in this study. Morphometric data were collected to establish the growing relationships for the species. Based on the characteristics of the individuals studied and on the variation on some osteologic structure, a model of ontogenetic classification was proposed. The skeletons were grouped in four different classes defined by size difference. A modelo of osteologic identification was developed for the marine population of S. fluviatilis

Published

2017-12-14

Issue

Section

Artigos originais