Taking a look at this very crisscrossed food web, I’m going to take a wild guess here and say that krill is a very important part of it.
Everything is very centered around krill, and it is near the bottom, so it is very important in the trophic level. If humans suddenly began to consume krill in mass quantities, large scale krill fishing could deplete this ecosystem’s supply of krill. This would negatively impact every consumer preying after krill [or preying after something that preys after krill, etc.], because their food source is suddenly gone. It could imbalance the ecosystem, or even lead to mass extinction.
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| http://theliquidearth.org/2013/10/page/2/ |
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