Can aquaculture and agriculture biotechnology help feed a growing global population?

I will answer the part of Biotechnology. During this century, most our plants are modified, some genetically others in vitro through cross pollination. The new hybrids are more resistant to pests and diseases in order to reduce the spread of pesticides. Some new plants are drought tolerant, others richer in antioxidants, tastier, more productive and so on. Only through this technology most of the agriculture is able to survive the global warming, the weather changes, including the pollution. Without it, most of the old hybrids would have disappeared like the Panama disease for Banana, Chestnut Blight in the US, ... So the only solution was and still is the Biotechnology for allowing the planted food survival. 

Aquaculture is possible good solution to feed growing global population, but we must first know what fish farms are able to maintain profitability and improve the quality of farms products, and still minimize their environmental impact. With aquaculture we can produce more foods, but farms need chemicals and antibiotics and they can contaminated surrounding waters.There is also fecal contamination causes harmful algal blooms, sensitive coastal and wetland areas are disrupted or destroyed, and wild fish stocks are depleted in order to provide feed for carnivorous domesticates. That is a reason why we must upgrade new aquaculture technology, who will not hurt or contaminated nature. I we succeed in that, then we can talk about aquaculture as tool who will help in humans feed