We catch them and eat them.
humans and sharks
can you use chicken in stead of tuna in tuna helper
mackerel
Sharks and humans are primary consumers.
The tuna fish is not at all deadly to humans. It is a staple of many people's diet throughout the world.
it contains small amounts of mercury which is poisonous to humans
Two I can think off the top of my head are sharks and humans
Some types of Tuna like 'Little Tuny' and 'Bonito' are used as bait. Larger type of Tuna usually kept for either selling or eating. Blue Fin Tuna, I think are the largest type of Tuna are over fished. They are the ones that sell for thousands of US dollars in Japan. When the Blue Fin are smaller, I am sure they get eaten by predatory fish too. If you like sushi or sashimi, try to avoid eating tuna because it is most likely Blue Fin tuna. The Tuna that one buys in the can is usually Albacore Tuna, which is monitored and not over fished. Lastly, Tuna is prey to humans.
other fish like squid, mackerel, and octopus
no se
Animals that prey on seahorses include crabs, tuna, and penguins.
Usually u would use fresh tuna . but if u like u can use caned tuna