One moment, please buying viagra The dead zones that are formed off the coast of Louisiana and Texas each summer threaten the ecosystem. A report from the Gulf Task Force in 2008 stated that hypoxia has a negative impact on the marine resources. The living resources present in the Gulf exhibit a long term ecological variation in species diversity and a large scale change in the food web that cannot be reversed. As a result of hypoxia, fish kills occur on a large scale in areas of the Gulf.