11.   Jonathan Paul, one of the founders of the alliance, says the group has about eight core members who dedicate themselves to protecting marine ecosystems.

12.   Meanwhile, biologists are concerned about the havoc an El Nino might play on the marine ecosystem.

13.   Much of the concern over ozone depletion is focused on marine ecosystems in the oceans of the Southern Hemisphere.

14.   Now, new species of such beings are turning up with increasing frequency, and scientists are learning just how crucial their role in marine ecosystems is.

15.   Passage of such legislation, before biologists have determined the impact on the marine ecosystem of removing large numbers of young eels, would be premature and potentially disastrous.

16.   The other was an analysis of the food web derived from models of marine ecosystems.

17.   The Pew Commission has sought to engage all stakeholders in the pursuit of healthy marine ecosystems.

18.   The researchers suggest sick coral might be a good early warning signal for creeping damage to entire marine ecosystems, which can be hard to detect.

19.   They say the platforms also interfere with delicate marine ecosystems.

20.   Conservationists said that while cargo ships continued to navigate through the delicate marine ecosystem it was only a matter of time before a damaging spill happened.