Sand eels eat tiny pieces of mackerel
No they only eat fish.
Sand eels eat a variety of crustaceans including crab and shrimp. They are actually a species of small fish rather than an eel.
that eels can travl on wet grass and wet sand
Sand eels are about 5" long.
The mathematical relationship is direct (not inverse), because sand eels feed on herring, and as the herring decrease, so decreases the sand eels' food supply. Please note that sand eels are not to be confused with the gigantic variety of species called sand worms, as depicted in the 1988 movie Beetle Juice. These creatures feed solely on actors and film crews.
Puffins are not dangerous, except to its favourite food of sand eels.
MAINLY FISH ex: sand eels, herring, and ect.
A puffin's diet consists of sand eels, herring, hake, and capelin.
it will effect the eggs
Sand sharks it squid but also eat crab and lobster
puffins eat small fish like sand eels.