First lets discuss the components, and the cycles, then later lets discuss the implications!
Can we have more context for this conversation?
Are we talking about interactions between shoreline/coastal farmers, and utilizing marine microorganisms in terrestrial contexts?
Are we talking about the impact of marine-imported materials in inland farming use (like fish emulsions/seaweed extracts)
The impact of marine microbiology on natural coastlines - like tide zones, or areas where river meets ocean and we get a bunch of brackish water to work with? (Apparently there's some terrestrial plants that are fairly hardy to salt and can grow in brackish water)
What angle of context do you want to approach at, first?