11.   In the West, new technologies were developed to go offshore to try to cope with the challenge of producing oil and gas in sensitive marine environments.

12.   Its principal feature is a large central swimming tank that contains fish from all oceans and rocks, corals and flora from different marine environments.

13.   Materials slated for artificial reefs must be certified as clean and harmless to the marine environment under the strictest standards.

14.   Most exotic species are introduced into marine environments through the intake and discharge of ballast water.

15.   Nevertheless, Clinton has handed the city a splendid chance to create new public spaces and to make creative use of its underappreciated marine environment.

16.   Now, evidence from one of the biggest scientific investigations to date suggests that the pesticides applied at hundreds of salmon farms may be harming the marine environment.

17.   Or discuss the quality of the marine environment.

18.   That technology would have been far more expensive, but also much less harmful to the marine environment, according to project critics.

19.   The commission plans to release a report next September that it hopes will significantly alter congressional action on the marine environment and fisheries.

20.   This city has never fully exploited its spectacular marine environment.