Small dolphins in a small sea: age, growth and life‑history aspects of the Black Sea common bottlenose dolphin Tursiops truncatus

We provide first data on the life span, growth and seasonal aspects of the life history of Black Sea bottlenose dolphins Tursiops truncatus in the wild and compare these with historical data and conspecific populations in other geographical regions. Average life span is 20 to 32 yr; the oldest recor...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	P Gol’din, E Gladilina
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2015
Materias:	Biology (General) QH301-705.5 Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/414c646dc5604b5a9d6cea84fc71eef6
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:414c646dc5604b5a9d6cea84fc71eef6
record_format	dspace
spelling	oai:doaj.org-article:414c646dc5604b5a9d6cea84fc71eef62021-11-18T09:20:38ZSmall dolphins in a small sea: age, growth and life‑history aspects of the Black Sea common bottlenose dolphin Tursiops truncatus1864-77821864-779010.3354/ab00617https://doaj.org/article/414c646dc5604b5a9d6cea84fc71eef62015-02-01T00:00:00Zhttps://www.int-res.com/abstracts/ab/v23/n2/p159-166/https://doaj.org/toc/1864-7782https://doaj.org/toc/1864-7790We provide first data on the life span, growth and seasonal aspects of the life history of Black Sea bottlenose dolphins Tursiops truncatus in the wild and compare these with historical data and conspecific populations in other geographical regions. Average life span is 20 to 32 yr; the oldest record is 41 yr. The reproductive season lasts at least from February to September or October and includes the coldest months of the year (February and March). Average adult body lengths are 240 ± 14 cm for females and 255 ± 10 cm for males. Rapid early body growth ceases by 3 to 4 yr. Two morphs, one large (offshore) and one small (coastal), possibly co-exist in the Black Sea. The larger morph may include winter-breeding migrants or immigrants from the Mediterranean Sea. The small coastal form is similar in body size and growth patterns to coastal populations in the eastern Mediterranean region and the Gulf of Mexico, but is characterized by early growth to maturity and small asymptotic body size. Small-sized dolphin populations in enclosed water bodies can be treated as an example of the ‘island rule’, and their dwarfism may hypothetically be explained as an effect of smaller prey size.P Gol’dinE GladilinaInter-ResearcharticleBiology (General)QH301-705.5MicrobiologyQR1-502ENAquatic Biology, Vol 23, Iss 2, Pp 159-166 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biology (General) QH301-705.5 Microbiology QR1-502
spellingShingle	Biology (General) QH301-705.5 Microbiology QR1-502 P Gol’din E Gladilina Small dolphins in a small sea: age, growth and life‑history aspects of the Black Sea common bottlenose dolphin Tursiops truncatus
description	We provide first data on the life span, growth and seasonal aspects of the life history of Black Sea bottlenose dolphins Tursiops truncatus in the wild and compare these with historical data and conspecific populations in other geographical regions. Average life span is 20 to 32 yr; the oldest record is 41 yr. The reproductive season lasts at least from February to September or October and includes the coldest months of the year (February and March). Average adult body lengths are 240 ± 14 cm for females and 255 ± 10 cm for males. Rapid early body growth ceases by 3 to 4 yr. Two morphs, one large (offshore) and one small (coastal), possibly co-exist in the Black Sea. The larger morph may include winter-breeding migrants or immigrants from the Mediterranean Sea. The small coastal form is similar in body size and growth patterns to coastal populations in the eastern Mediterranean region and the Gulf of Mexico, but is characterized by early growth to maturity and small asymptotic body size. Small-sized dolphin populations in enclosed water bodies can be treated as an example of the ‘island rule’, and their dwarfism may hypothetically be explained as an effect of smaller prey size.
format	article
author	P Gol’din E Gladilina
author_facet	P Gol’din E Gladilina
author_sort	P Gol’din
title	Small dolphins in a small sea: age, growth and life‑history aspects of the Black Sea common bottlenose dolphin Tursiops truncatus
title_short	Small dolphins in a small sea: age, growth and life‑history aspects of the Black Sea common bottlenose dolphin Tursiops truncatus
title_full	Small dolphins in a small sea: age, growth and life‑history aspects of the Black Sea common bottlenose dolphin Tursiops truncatus
title_fullStr	Small dolphins in a small sea: age, growth and life‑history aspects of the Black Sea common bottlenose dolphin Tursiops truncatus
title_full_unstemmed	Small dolphins in a small sea: age, growth and life‑history aspects of the Black Sea common bottlenose dolphin Tursiops truncatus
title_sort	small dolphins in a small sea: age, growth and life‑history aspects of the black sea common bottlenose dolphin tursiops truncatus
publisher	Inter-Research
publishDate	2015
url	https://doaj.org/article/414c646dc5604b5a9d6cea84fc71eef6
work_keys_str_mv	AT pgoldin smalldolphinsinasmallseaagegrowthandlifehistoryaspectsoftheblackseacommonbottlenosedolphintursiopstruncatus AT egladilina smalldolphinsinasmallseaagegrowthandlifehistoryaspectsoftheblackseacommonbottlenosedolphintursiopstruncatus
_version_	1718420899555704832

Small dolphins in a small sea: age, growth and life‑history aspects of the Black Sea common bottlenose dolphin Tursiops truncatus

Ejemplares similares