Open Access Research Article

Sightings and Satellite Tracking of a Blue/Fin Whale Hybrid in its Wintering and Summering Ranges in the Eastern North Pacific

Jefferson Thomas A1*, Palacios Daniel M2, Calambokidis John3, Baker C. Scott2, Hayslip Craig E2, Jones Paul A4, Lagerquist Barbara A2, Jørgensen Morten5 and Schulman-Janiger Alisa6

1Clymene Enterprises, Lakeside, USA

2Marine Mammal Institute and Department of Fisheries and Wildlife, Hatfield Marine Science Center, Oregon State University, USA

3Cascadia Research Collective, Olympia, USA

4Searcher Natural History Tours, USA

5NozoMojo Tours and Arts, USA

6Natural History Museum of Los Angeles County, USA

Corresponding Author

Received Date: March 25, 2021;  Published Date: April 23, 2021

Abstract

We report 20 photo-documented sightings of a blue/fin whale hybrid between 2004 and 2020, in its wintering and summering ranges in the Gulf of California, Mexico, and southern California, USA, respectively. The whale was confirmed to be a hybrid by genetic testing using a reference dataset of non-hybrid blue and fin whales. It was also tracked by satellite for 28 days in 2015, showing its feeding range extended to the Big Sur area of central California. Information is presented to assist in field identification of blue/fin whale hybrids.

Keywords: Balaenoptera musculus, Balaenoptera physalus, Cetaceans, Hybridization, California, Mexico, Migration, Tracking, Identification

Citation
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