Final answer:
True, purchasing fresh fish from a recreational fisherman can pose a threat to food safety due to potential improper handling, which can result in parasitic infections or other health risks.
Step-by-step explanation:
Purchasing fresh fish from a recreational fisherman could indeed pose a threat to food safety, which makes the statement true. Recreational fishermen may not follow the same strict protocols for handling and processing fish that commercial operations are required to adhere to. This could lead to the spread of diseases or parasites that are commonly found in fish populations. Commercial fishing regulations and restrictions, such as those ensuring sustainability, are in place to prevent overfishing and to maintain fish populations at safe levels. Consuming improperly handled fish, especially if eaten raw, can expose individuals to health risks such as parasitic infections. For example, fish should typically be frozen or cooked to very high or low temperatures to kill potential worms and larvae.