Sentences with phrase «krill populations in»

The phytoplankton - dependent krill populations in the Southern Ocean which are the staple food of all the great baleen whales are now down by 80 % and the shortfall is now also starving local fish species, penguins and seals.)

Not exact matches

Populations of both penguin species have plummeted in recent years, which the research blames on the loss of the tiny, shrimp - like krill that are a staple food for both birds.

As sea waters in the South Atlantic warm, the amount of krill available for seals drops, leading to a smaller yet more genetically varied population

In the 1970s and 1980s, for example, researchers argued that reducing certain whale populations would aid stocks of krill, a ubiquitous crustacean in the Southern Ocean that is a key food source for baleen whales and other marine specieIn the 1970s and 1980s, for example, researchers argued that reducing certain whale populations would aid stocks of krill, a ubiquitous crustacean in the Southern Ocean that is a key food source for baleen whales and other marine speciein the Southern Ocean that is a key food source for baleen whales and other marine species.

Rather, a dip in the krill population may be to blame, an idea supported by the fact that Adélie penguin population (P. adeliae) in the region is also declining, while the gentoo penguin population (P. papua), which has a more variable diet, is not.

Furthermore, we must understand how changes in sea ice cover affect the feeding ecology of humpback whales and their competitors in the short - term and the dynamics of krill populations over the longer term, particularly given the increasing pressure from commercial krill harvests [36].

Failure to account for the effects of climate change on these dynamics will undermine our ability to understand changes in the standing biomass of Antarctic krill and also to predict the recovery of whale populations from a century of mismanagement and overexploitation [37].

At the same time, baleen whale populations in the Southern Ocean, which feed primarily on krill, are recovering from past exploitation.

attributes both increases and decreases in penguin populations to changes in the abundance of their main prey, Antarctic krill.

Variability in krill biomass links harvesting and climate warming to penguin population changes in Antarctica Trivelpiecea et al., PNAS May 3, 2011 vol.

In the 1970s and 1980s, for example, researchers argued that reducing certain whale populations would aid stocks of krill, a ubiquitous crustacean in the Southern Ocean that is a key food source for baleen whales and other marine specieIn the 1970s and 1980s, for example, researchers argued that reducing certain whale populations would aid stocks of krill, a ubiquitous crustacean in the Southern Ocean that is a key food source for baleen whales and other marine speciein the Southern Ocean that is a key food source for baleen whales and other marine species.

What's also shocking is that Antarctic penguin populations, which depend on krill for food, have collapsed by 50 percent in the last 30 years.

Falling populations of penguins in the West Antarctic Peninsula are being driven by a reduction of their main food source, Antarctic krill, according to a new study.