A note on strandings and age of sperm whales (Physeter macrocephalus) on the Brazilian coast

Main Article Content

Renata M. A. Ramos
Salvatore Siciliano
Monica Borobia
Alexandre N. Zerbini
Jose Luis A. Pizzorno
Ana Bernadete L. Fragoso
Jose Lailson-Brito Jr.
Alexandre de Freitas Azevedo
Paulo Cesar Simoes-Lopes
Marcos Cesar de Oliveira Santos


This note compiles recorded strandings of sperm whales on the Brazilian coast. A known total of 95 sperm whales (62 single and one mass stranding of 33 individuals) stranded along the Brazilian coast from 1967-2000. A higher incidence of single strandings was observed in northeastern Brazil ( ~ 05°-17°S). No strandings occurred in lower latitudes ( < 14°S) from June-September. The seasonal and spatial pattern observed by the reported strandings may indicate higher stranding rates in higher latitudes ( ~ 18-25°S) between June and August (winter) and in lower latitudes ( ~ 3-7°S) between January and April (summer and spring). Strandings of smaller sperm whales (3-4.5m) were observed during the austral summer and autumn, indicating seasonality in the birth season. Growth-layer counts of three specimens provide the first data on age of sperm whales for Brazil.

Article Details

How to Cite
Ramos RMA, Siciliano S, Borobia M, Zerbini AN, Pizzorno JLA, Fragoso ABL, et al. A note on strandings and age of sperm whales (Physeter macrocephalus) on the Brazilian coast. jcrm [Internet]. 2023 May 24 [cited 2023 Dec. 4];3(3):321-7. Available from: https://journal.iwc.int/index.php/jcrm/article/view/882

Most read articles by the same author(s)