Lesser Sand Eel Lesser Sand Eels are vital to Faxaflói Bay’s ecosystem, serving as a primary food source for many seabirds - especially the Atlantic Puffin. Image Key Facts Scientific Name Ammodytes tobianus & A. marinus Family Ammodytidae IUCN Status Data Deficient Length 20 cm Weight Depth Range 10-150m Diet Lifespan 10 years Predators