Scientist solves the mysterious aggregation of orcas near Bremer Bay

2021-04-24T13:07:23-05:00April 22nd, 2021|Categories: Species News|Tags: , , , |
orcas, killer whales, dolphins

Orcas aggregate near Bremer Bay in large numbers.

Every year, between late Austral Spring and early Autumn, a natural phenomenon takes place near Bremer Bay in the western Great Australian Bight. Over one hundred orcas congregate over the continental slope near the head of the Hood Canyon.

Using hydrodynamic model, Jochen Kämpf has been able to model the flow of particulate organic matter (POM) in the area. It seems that the currents causes upwelling of fluxes POM and the Hood Canyon acts as a bottleneck – concentrating POM in this region. The abundance of POM acts as a driver for a localised food web, attracting and supporting plentiful prey species for the orcas.

The study highlights the unique nature and importance of the area.

The paper “Modelling of physical drivers of a large feeding aggregation of killer whales (Orcinus orca) in the western Great Australian Bight, Australia” by Jochen Kämpf, May 2021 is published in Deep Sea Research Part I: Oceanographic Research Papers available through the ELSEVIER.

by Andrew Pollard

Subscribe

Stay up-to-date and informed…

Select list(s) to subscribe to


By submitting this form, you are consenting to receive marketing emails from: MarineBio Conservation Society, 2926 Barker Cypress Rd, Suite 10208, Houston, TX, 77084, https://www.marinebio.org/. You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email. Emails are serviced by Constant Contact

OceanSeaMarine Life News

The MarineBio News Blog >-<°°>-< View Daily Marine Life Newsfeeds
Join our very popular Facebook group ~ The Largest Group of Marine Biologists/Conservationists Online

Also follow us on Instagram, Twitter, Pinterest and YouTube!

Dive In For More
Find out more >

Canada Launches Satellite Technology That Identifies ‘Dark Vessels’ Illegally Catching Billions of Fish

by GNN
Find out more >

LEAVE A REPLY

Have a comment, question or suggestion? Feel free to submit comments to start or join discussions. Please keep in mind that all comments are moderated and your email address will NOT be published. Get your free Gravatar (Globally Recognized Avatar) before commenting to show your personal image instead of the default.

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Go to Top