Skip to content

Humpback bubble circle

June 6, 2014

10440701_10152158155184632_5891397575595553515_n

Humpbacks use bubble curtains to capture fish as these photos from Whale and Dolphin Conservation’s Facebook page show.

The whales dive and then swim back towards the surface in a circular pattern. As they swim to the surface, they “blow bubbles” that form a ring, entrapping and concentrating fish into a ball, WDC says.

The feeding behaviour is often performed in groups with clear roles defining who will create the bubbles and who will eat first.

According to one study done by the Stellwagen Bank National Marine Sanctuary, whales will sometimes poach fish that other whales entrap with the bubble technique.

Whales of the Australian East Coast population sometimes use this technique in the Antarctic during summer, when they grow massive amounts of blubber. They tend to eat much less during the migration season up to the Great Barrier Reef.

Advertisements
Leave a Comment

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: