Final answer:
Fish and shellfish provide approximately 16% of all human-animal protein consumption, with option (a) 10% being the closest to this percentage among the given options. Fisheries play a crucial role in providing protein to billions of people, but sustainability issues remain a concern. The correct option is a) 10%
Step-by-step explanation:
Fish and shellfish are significant sources of animal protein for humans globally. At the beginning of the 21st century, the share of fish in the total world animal protein supply amounted to 16%.
Moreover, fish contributes to, or exceeds 50% of the total animal protein consumption in many countries and regions. Therefore, fish and shellfish account for approximately 16% of all human-animal protein consumption, making option (a) 10% the closest answer provided in the options listed.
It's worth noting that fish provide more than 2.8 billion people with around 20% or more of their average per capita intake of animal protein.
This highlights the essential role that fisheries play in the global food supply, but also raises concerns about sustainability, as many fisheries are not managed in a way that preserves them long-term.
The effects of overfishing and demand for dietary protein from fish on marine ecosystems are significant and pose challenges for future supply. The correct option is a) 10%