Once heavily hunted, humpback whales that feed on krill have made a comeback in Antarctic waters.
"We hope to look at the densities of the krill that the penguins are exploiting, " Dr Trathan explained.
BBC: NEWS | Science/Nature | Penguin-cam snaps amazing images
The scientists think the co-ordinated behaviour may be a strategy for avoiding predators rather than to corral the krill.
BBC: NEWS | Science/Nature | Penguin-cam snaps amazing images
When it comes to juggling work and a personal life, Krill believes in having it all, but with flexibility.
Krill (crustaceans resembling prawns) subsist on phytoplankton and are in turn eaten by fish, squid, jellyfish, seabirds, penguins, seals, whales and other animals.
An average-sized humpback whale eats 2, 000-2, 500 kg of plankton, krill and small, schooling fish but don't worry, no kayakers per day.
CNN: ASIANOW - TIME Asia | Travel Watch | Open the Door to Cool Summer a Escape
In future, the scientists hope to improve the resolution of the cameras and use the technique to observe how the penguins target the krill.
BBC: NEWS | Science/Nature | Penguin-cam snaps amazing images
Also on the list: the abundant Chilean jack mackerel in the southern Pacific Ocean, for human consumption in Africa, and Antarctic krill, for fish oil and fishmeal.
Royal penguins have a yellow crest, eat krill and squid and generally live on and around Macquarie Island, about halfway between New Zealand and Antarctica.
Sundresses and strappy sandals may be the craze this summer, but nothing stays in fashion like a leading woman, and Kay Krill is a good example.
Attracted by plankton, krill and large shoals of herring, minke, fin, humpback, and the occasional killer whale habitually pass through the briny coastal waters between Donegal and Cork City.
In one strait, a pod of whales appears, blowing spouts under the water to create a net of bubbles in which to trap a meal of krill.
What is more, the extent of sea ice cover influences the abundance of krill and the fish species that eat them - both food sources for the penguins.
In a nifty feat of geography, the warm, fresh waters of the Saguenay jet out atop the frigid, salt waters of the St Lawrence River, churning up massive volumes of krill.
For our Success video series, Krill sat down with Moira Forbes to talk about the evolving fashion at Ann Taylor, keeping business afloat during the recession, and staying humble.
"It was a courageous move for Ford to open the door to its critics, " says Jennifer Krill of Rainforest Action Network, which does all it can to publicize the contribution of SUVs to atmospheric carbon.
Given the circumstances, I'm impressed by the variety and quality of what is always a multicourse lunch and dinner, with beef, game, fish, and seafood, including krill, the tiny shrimplike creatures that are a staple of whales' diets.
And given that the krill (tiny crustaceans) that penguins feed on are also dependent on the ice for their own existence (they feed on algae on the ice) - some colonies affected by eroded floes could face a double-whammy of high fledgling mortality and restricted food resources.
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