Dear Nagajothi Velayuthapillai

The framework could include various elements such as the different stakeholders involved in the marketing of fisheries products, the market forces that affect pricing and distribution, the marketing strategies used by industry players, and the regulatory policies that shape the industry.

I hope this helps.

A conceptual framework can differ depending on the aim and research questions of the study, what previous research was used as well as which theories and concepts are used

The conceptual framework of a research would depend on the objectives. Moreover, it illustrates the relationship variables.