0 very small animals with a hard outer shell that live in the sea and are eaten in large numbers by some types of whale --
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Today krill is consumed by an increased abundance of smaller whales (minkes), seals (notably the crabeater seal) and seabirds (notably several penguin species), plus humans.
As krill is the primary prey of crabeater seals, its geographic availability is probably the key factor affecting seal distribution during the non-breeding season.
The distributions of peak areas of phytoplankton biomass and krill were patchy.
Terrestrial ecosystems have few equivalents of schooling or aggregating marine species such as krill, forage fish, and squid, which support vast suites of large predators.
But the upwelling, with all it means to krill productivity and dependent communities, could be significantly disrupted.
Mysticetes have baleen plates that act like a giant filter, straining small animals (such as plankton and krill) from the seawater.
In the year 1900 the great whales were probably consuming 190 million tonnes of krill per year, but today they are estimated to account for only 40 million tonnes.
The discussion of effects of the variability of sea ice and teleconnections on krill, black guillemot, penguin, and polar bear populations will be of interest to all polar scientists.
Managing Your Emotions
What makes me angry?
Mostly，l hate when someone tries to make someone else feel bad.
I have to admit that once, when l was actually called names.
l regretted doing this afterwards, but not full heartedly because l think l was provoked in that situation.
The most postive way of dealing with anger is talking about the problem.
l talk to someone who listens, or l'll write my thoughts down on paper.
Learning how to deal with anger as you're growing up is so important.
When you're younger, you might yell,or cry when you're angry, but as you get older, you're expected to handle your emotions much better.
Learning to control your emotion now will prevent you from doing something that you'll regret later on in life!
