1.   Biologists are just now beginning to understand the complexities of the Antarctic marine ecosystem.

2.   He said the illegal fishing threatened the fragile Antarctic ecosystem.

3.   Researcher say the loss of this much ice would have unforeseen effects on the Antarctic ecosystem and ocean circulation.

4.   Russia, Poland and Japan have krill-harvesting boats, and scientists are trying to determine how big a catch they could take without disrupting the Antarctic ecosystem.

5.   Upton said the illegal fishing threatened the fragile Antarctic ecosystem.

6.   He said the scale of current operations was damaging the fragile Antarctic ecosystem and challenged the effectiveness of CCAMLR.

7.   Unregulated fishing on the scale reportedly taking place off the coast of South Africa threatened the fragile Antarctic ecosystem, he said.