13. hrIGF-1
2.5
2
Mean mRNA expression of hrIGF-1
1.5
1
0.5
0
High DO Control Low DO
Acclimation
14. Summary
1. Hsp70: General stress response, but lower levels in Low DO
acclimated group
2. HIF-1α: Lower levels in Low DO acclimated group
3. hrIGF-1: High levels in Low DO acclimated group
HALLEY:In terms on North American hypoxia is associated with areas such as the Gulf of Mexico and the Chesapeake Bay, however it does occur on the west coast.Tends to be episodic, occurring during the summer after stratification of the water column, preventing the mixing of the warmer nutrient rich upper layer with the cooler dense bottom layer and water exchange is limited. The organic matter that forms in the nutrient rich surface waters ultimately sink to the bottom and stars to decompose; this respiration requires oxygen thus resulting in hypoxia/anoxia bottom waters. As the summer progresses the vertical range of hypoxia tends to increase over the summer months.Human activities have also been linked to the increase in duration, extent and magnitude of hypoxic events.
RIZKY
the ability of an organism to change its phenotype in response to changes in the environment