Whales breathing near several krill trawlers in the Southern Ocean. CREDIT: Ralph Lee Hopkins. ... Other predators including penguins and seals do not go after swarms in this manner.

Zooplankton like copepods aren’t just fish food—they’re carbon-hauling powerhouses. By diving deep into the ocean each winter ...

The fishing boats and whales are “going after the exact same thing; the biggest, largest, densest krill swarms,” Matthew Savoca, an ecologist at Stanford University’s Hopkins Marine Station ...

When blue whales encounter a huge krill swarm, they make a specific call, which Ryan said essentially says, “Hey, my fellow blue whales, I am yumming it up here. Krill’s up.” ...

When Antarctic krill swarm, the semi-transparent shrimp-like crustaceans join together in the millions or trillions, forming dense coral-colored underwater clouds as they swim in sync with one ...

Interestingly, the krill also appeared to lose their appetite in the presence of penguin poop, feeding 64 percent less efficiently than under normal conditions. ... known as swarms, ...

A swarm of krill under Antarctic sea ice. Donna Patterson, Palmer Station Long-Term Ecological Research Study Area/Flickr, CC BY-SA. Now, krill fishing is on the verge of expanding.

Antarctic krill is a key species in the Antarctic marine ecosystem: it is an important food source for many species, such as whales, seals and penguins. However, the small crustaceans are ...

British scientists are hoping to monitor Antarctic krill from space as the species faces growing threats from climate change and overfishing.. WWF, the University of Strathclyde and the British ...

Antarctic krill swim in swarms of billions. Credit: Aker BioMarine, Pew The fate of krill in decades to come is uncertain, said Chelsey Baker, an ocean biogeochemical model analyst at the National ...

In a second set of experiments, the researchers showed that krill reduced their rate of ingesting algae for food by 64% when penguin poo was added to the water, dropping from 12.7 micrograms of ...

Krill swarms are patchy and vary from huge, densely packed “superswarms”, which can be over a kilometre in length, to small diffuse swarms less than 50 metres long.