Hopefully you've never bitten into a delicious hunk of snow crab meat and instantly spit it out because instead of crab you tasted... aspirin?! If you have, it might have been crab meat infected with a species of Hematodinium, a parasitic dinoflagellate that is the cause of Bitter Crab Disease in cold-water crab species.
Katrina Lohan's blog
Marine parasites may be small in size, but they can be present in very high numbers and put together can weigh even more than all the top predators in an estuary or bay ecosystem! They play an important role in keeping their host population from growing out of control—allowing them to exert power over food webs and ecosystem function. High parasite diversity is even an indicator of a healthy ecosystem.