Tag Archives: humpback whales

Visualizing Whale Sounds

From Woods Hole Currents Magazine

From Woods Hole Currents Magazine

As we get better acquainted with the sounds cetaceans make, researchers look for innovative ways to analyze and interpret what is being heard. Recent articles, including this one by Science News for Students, based on a recent publication in Science Communication, a recent interview by NPR featuring Katy and Roger Payne, as well as the article featured below, indicate that language has structure and can be learned.  This then drives research into whale culture and social structure. Hal Whitehead, from Dalhousie University, has been studying sperm whale social structure for decades (see Sperm Whales: Social Evolution in the Ocean, published in 2003). He will speak on this topic here on Tuesday, November 10, during our Whales in the Heart of the Sea lecture series.

One of the most interesting facets of this research is the use of spectrograms to visualize the sounds being made. Being the sight-focused species that we are, this visual representation of the sounds enhances our ability to recognize patterns, if indeed there are any.

What is a Spectrogram

This recent article in Smithsonian Magazine, featuring the work of David Rothenburg in Medium, combines spectrogram, sound and art to depict recognizable audio patterns as colorful shapes. We still don’t know what the male humpback was trying communicate with these vocalizations, but it’s clear that the sounds are not random meanderings.

The legacy of marine mammal sound recording started by William Schevill and William Watkins 60 years ago continues with new technology and new interpretive techniques. We will continue to follow these trends as the new stewards of the William A. Watkins Collection of Marine Mammal Sound Recordings and Data.

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World Oceans Day

In honor of World Oceans Day, we would like to share links to two video clips featuring the most acrobatic of all whale species, the humpback whale (Megaptera novaeangliae).

Humpback whales feeding at the surface. Photo courtesy of Whale and Dolphin Coservation, taken by Karolina Jasinska.

Humpback whales feeding at the surface. Photo courtesy of Whale and Dolphin Coservation, taken by Karolina Jasinska.

The first, from BT.com, features a calf trying unsuccessfully to emulate its mother. The second is a clip from the Huffington Post from 2014. It features drone footage, a research tool growing in popularity because of the access it affords in watching whale behaviors.

As you view these clips please think about the whales’ habitat and how the actions of all us impact, positively or negatively, where they live. The simple action of properly disposing of trash so that it doesn’t get into waterways protects all ocean animals.

The oceans regulate planetary chemistry, dictate weather and climate, are the ultimate source of our drinking water (think water cycle) and cover nearly 3/4 of the planet’s surface. Despite the name ‘Earth’ we really are the water planet. It’s everyone’s responsibility to be stewards of our global ocean.

Remarkable Photographs

Here’s a great way to start the week, with some excellent photography and a Guinness world record.  The waters of New England are too plankton rich to allow for such pictures. Of course, the plankton is the reason why the whales come to MA coastal waters to feed. That microalgae creates the energy needed for the food chains that support our feeding whales. It just makes cetacean photography a bit more challenging.

From The Daily Telegraph, Nine whales captured in a single frame by Australian underwater photographer Darren Jew: AUSTRALIAN underwater photographer Darren Jew waited decades to capture these magnificent images of whales swimming with free-diving record-holder Ai Futaki off the coast of Tonga.

The last photo in the series is an excellent face-to-face image. You get a close-up view of the tubercles (the round bumps) on the whale’s head. Each tubercle has a sensory hair in it. Enjoy.

Nine whales captured in a single frame by Australian underwater photographer

 

Great Whale Tail Photos

As the sun sets on another week, we’d like to share some nicely timed humpback whale photos off the coast of Monterey Bay, California.  This article about Katie Dunbar’s photos shows four very colorful pictures.  The first photo is the most impressive.

Enjoy the weekend.