Your question is very broad, we can say that there are several factors that can influence and it depends if it is an exotic or native species and the type of production (ex situ or in situ). Among the main lines you could investigate.
1. Ecology of the species.
1. Water quality, identify changes in the physical and chemical properties.
Second: Identify the barriers that interfere in the best solutions.
Third: Fight to remove these barriers.
Fourth: Plan and rule accordingly with the relevant institutions and productive sectors involved, in an integrated way (involving relevant government agencies, of course). I mean: implementing Integrated Coastal Management, Marine Spatial Planning and relevant regulations and controls.
I think it is an important part of the solution of a complex issues, but I these are crucial strategic and operational steps..