By federal law, scientists cannot approach marine mammals without following careful protocols, and yet this decision will pervade their environment with noise pollution that could have a long-term impact on their population, said Scott Kraus, a right whale expert at the John H Prescott Marine Laboratory in Boston.
While South Africa's progressive environmental legislation prohibits the use of motor vehicles in sensitive beach zones and controls the approaching of marine mammals, recent work has demonstrated that food provisioning by the shark-watching industry has a negligible impact on shark behavior [59].
The gunmen, in two sport utility vehicles, approached the marines near a military training area and started firing, an embassy spokeswoman said.
But marines approaching the city found machine gun nests in outlying dwellings, Colonel Starnes said.
Nearby on a big screen map in the windowless room, they could see a Marine convoy approaching the site.
Other research that the consortium has supported includes devices that use low-decibel sounds to discourage marine mammals from approaching fishing gear.
SeaWorld has already accused award winning author/journalist David Kirby of "not approaching the complex issues of marine mammal display in good faith".
American marines are also approaching Baghdad a little way to the east, in the direction of Kut.To sustain the pace of this advance, coalition forces have intentionally and unusually bypassed what have become euphemistically known as "pockets of resistance".
The Italian authorities, on the other hand, say that the marines warned an approaching boat to keep away, and that when it did not, they had no choice but to fire warning shots into the air.
More widely, on a global level, political mechanisms also frustrate common-sense approaches to marine stewardship.
