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Sei Whale

Balaenoptera borealis
Lesson, 1828
Ballena Sei
Family: Balaenopteridae
Order: Artiodactyla
Class: Mammalia
Phylum / Division: Chordata
Kingdom: Animalia
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Conservation Status: Endangered

Other common names: Rorcual Sei.


This taxon does not have a description yet.

At EcoRegistros, species pages are completed using open bibliographic compilations, and anyone can contribute.

If you'd like to submit a sourced description, email us at ecoregistros@ecoregistros.org and we'll publish it credited to your name.




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Number of Photography: 7



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Last Vocalizations published




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Number of Films: 1


Video ID: 5554
♂ ♀ Punta Marqués
Chubut
Argentina
03/20/2023
Santos Di Mauro


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 Reports


 Detail of places sorted by number of records





Number of Records: 26



Page 1 of 3
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
236778115/07/2025ArgentinaBuenos AiresAvenida Costanera (-35,449220, -58,789708)Marcos Augusto Lartigau
227063407/04/2025ArgentinaTierra del FuegoCanal beagle, Ushuaia2Faustino Hollmann
227054906/04/202517:29ArgentinaSanta CruzCamino sin nombrar3Sebastián Alvarado
225345421/02/202520:14ChileRegión de Magallanes y la Antártica ChilenaCamino sin nombrar1María Alejandra Sosa
225345121/02/202520:09ChileRegión de Magallanes y la Antártica ChilenaCamino sin nombrar1María Alejandra Sosa
225345021/02/202520:03ChileRegión de Magallanes y la Antártica ChilenaCamino sin nombrar2María Alejandra Sosa
225344821/02/202519:44ChileRegión de Magallanes y la Antártica ChilenaCamino sin nombrar2María Alejandra Sosa
225241721/02/202520:14ChileRegión de Magallanes y la Antártica ChilenaCamino sin nombrar1Jorge La Grotteria
225241421/02/202520:09ChileRegión de Magallanes y la Antártica ChilenaCamino sin nombrar1Jorge La Grotteria
225241321/02/202520:03ChileRegión de Magallanes y la Antártica ChilenaCamino sin nombrar2Jorge La Grotteria
Page 1 of 3

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Citation recommended:

EcoRegistros. 2026. Sei Whale (Balaenoptera borealis) - Species sheet. Acceded from https://www.ecoregistros.org on 10/03/2026.