; (3) in subsection (b), as so redesignated— (A) in paragraph (1), by striking coastal waters including the Great Lakes and inserting marine, estuarine, and freshwater systems ; and (B) in paragraph (2)— (i) by amending subparagraph (A) to read as follows: (A) examine the causes and ecological consequences of hypoxia on marine and aquatic species in their natural environments, and socio-cultural or economic costs of hypoxia, including impacts on food safety and security; ; (ii) by redesignating subparagraphs (B) through (D) as subparagraphs (D) through (F), respectively; (iii) by inserting after subparagraph (A) the following new subparagraphs: (B) examine the effect of other environmental stressors on hypoxia; (C) evaluate alternatives for reducing, mitigating, and controlling hypoxia and its environmental impacts; ; (iv) in subparagraph (D), as so redesignated, by inserting , social, after ecological ; and (v) in subparagraph (E), as so redesignated, by striking hypoxia modeling and monitoring data and inserting hypoxia modeling, forecasting, and monitoring and observation data ; and (4) in subsection (c), as so redesignated, to read as follows: (c) Action strategy and scientific assessment for marine and freshwater harmful algal blooms (1) Not less often than once every 5 years, the Task Force shall complete and submit to Congress an action strategy, including a scientific assessment, of harmful algal blooms in the United States (in this Act referred to as the Action Strategy ). Each such Action Strategy, including scientific assessment, shall examine both marine and freshwater harmful algal blooms, including those in the Great Lakes and upper reaches of estuaries, those in freshwater lakes and rivers, and those that originate in freshwater lakes or rivers and migrate to coastal waters. (2) Each Action Strategy under this subsection shall— (A) examine the causes and ecological consequences, and the socio-cultural or economic costs, including impacts food safety and security, of harmful algal blooms