According to a case study research by Smith, Asch, and Oglend (2013) on Gulf of Mexico Brown Shrimp, an individual –dynamic biochemical simulation usually embeds three fundamental biological impacts on shrimp, which includes aggregation on the hypoxic edges, mortality as well as growth. The study found out that hypoxia creates feedback in the biochemical system, therefore, altering the effort patterns and the catch. This kind of ecological disturbance through partial sparting contaminates the areas that may be considered as controls in the natural experiment frameworks. According to this study, average shrimp size and amount of total landings are negatively correlated, as well as the hypoxic and landings.
There exist some ecological shocks in the marine environment that have potential to threaten the flows and extraction of non-extractive ecosystems such as temperature variations due to climate change, acidification, and proliferation of large dead zones that are in coastal waters which are caused by technological disasters and pollution. Although the Gulf Shrimp fishery is large and the spatial extent of hypoxia is generally substantial the natural scientists for long have had difficulty in linking the substantial scale seasonal hypoxia to the fishery loses. Recent research has proven a success on the efforts to detect effects of hypoxia on fisheries using the microdata in others settings and the potential effects that are carried by empirically grounded biochemical simulations ((Massey, Newbold, and Genter 2006).
Contrary of the hypoxia in estuaries along the East Coast, the Gulf of Mexico hypoxic occurs in open water and a large area that potentially affects much fishery as well as conceding with the adult rather than the juvenile life stage of a shrimp. According to marine ecologists, shrimp congregate on the edges of hypoxic areas is hence making them easier to catch. (Dend, 2011). According to the spatial dynamic Bioeconomiocal Simulation model which is used to understand the potential effects of hypoxia on species of shrimp, their catchability effects is more ambiguous than the mortality and growth effects. The findings indicate that annual shrimp size is negatively correlated with the total yearly landing. The death, combined effects of hypoxia and growth rate decreases the average shrimp size while the catchability leads to an increase in the average shrimp size landed.
For this reason, the relative abundance in non-hypoxic zones is highly is higher hence attracts fishing especially at the beginning of the year. The effects of hypoxia on fisheries are usually far from obvious. The mortality and growth effect of hypoxia on fishery leads to a decrease in the fish harvests. The catchability effects, on the other hand, lead to an increase in fisheries.