A healthy marine trophic level provides as food, medicines, tourism and employment.
Explanation:
The Marine trophic level starts from producers. eg: phytoplanktons, algae and some photosynthetic bacteria.
The primary consumers are zooplanktons, small fishes etc.
The secondary consumers are corals, small shark and fishes.
Tertiary consumers are on the top of the trophic level they are sharks, whales, seals etc.
We know that the primary consumers are the most important in the trophic level as they are the one who initiates the food chain, marine ecosystem has its own machinery to start their food chain.
The trophic level is important to us as they are the food source for us, many species are medicinally important, their presence in the ecosystem with proper feeding solves the purpose.
Erosion of coasts is prevented because of marine flora.
There are employments in fisheries and tourism. The healthy marine trophic levels promote snorkelling and scuba diving activities which are source of income in the tourism sector.
