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With properly designed vessels , trolling is an economical and efficient way of catching tuna , mackerel and other pelagic fish swimming close to the surface .
 food: tuna; animal: mackerel; animal: pelagic fish
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 food: tuna; animal: mackerel; animal: pelagic fish