Oily fish
Videos
Oily fish, also known as blue fish or fatty fish, are species of fish with oil in soft tissues and in the coelomic cavity around the gut. Their fillets may contain up to 30% oil, although this figure
The large open-water Atlantic bluefin tuna is an oily fish.
Most small forage fish, like these schooling anchovies, are also oily fish.
Oily fish fillet (salmon – bottom) contrasted with a white fish fillet (halibut – top)
Grilled salmon, an oily fish
Herring
Videos
Herring are various species of forage fish, belonging to the order Clupeiformes.
Atlantic herring, Clupea harengus
Herring spawn
Transparent eggs with the yolk and eyes visible and one larva hatched
Freshly hatched larva in a drop of water beside a match to demonstrate how tiny it is: The black eyes and the yolk are visible.