These creations can be enjoyed as toppings on rolls as well as pieces of nigiri, on rice and wrapped inside a sheet of seaweed (a.k.a. gunkan) We leave you with two insider tips: restaurants may substitute slightly smaller masago eggs (smelt roe), due to their similar appearance and flavor and lower cost.
http://www.foodrepublic.com/2013/04/19/what-is-tobiko-and-whats-up-with-the-different-colors/
The capelin or caplin, Mallotus villosus, is a small forage fish of the smelt family found in the Atlantic and Arctic oceans. In summer, it grazes on dense swarms of plankton at the edge of the ice shelf. Larger capelin also eat a great deal of krill and other crustaceans. Whales, seals, cod, squid, mackerel, beluga whales and seabirds all prey on capelin, in particular during the spawning season of the capelin while it migrates southwards.
https://en.wikipedia.org/wiki/Capelin
Capelin is an important forage fish, and is essential as the key food of the Atlantic cod. The northeast Atlantic cod and capelin fisheries therefore are managed by a multispecies approach developed by the main resource owners Norway and Russia.
https://en.wikipedia.org/wiki/Capelin
In Russian, all types of fish roe are called икра (ikra, caviar), and there is no linguistic distinction between the English words roe and caviar.. Sturgeon roe, called чёрная икра (chyornaya ikra,  black caviar ) is most prized.
https://en.wikipedia.org/wiki/Roe
Sushi rice recipe: http://makesushi.org/cooking-the-rice/. Sushi grade fish info: http://makesushi.org/store/sushi-grad... Sushi Plates: http://makesushi.org/store/sushi-plat... ---------------------------------------- ­-----------.
http://www.youtube.com/watch?v=qVrOJcbt25U
Tobiko can be infused with other natural ingredients to change its color and flavor. Common variations include squid ink to make it black, yuzu to make it yellow, beet to make it red and wasabi to make it green. Read on for more and some insider tips. You head to your local sushi joint for the second consecutive night and, disregarding our 12 sushi commandments, order an exotic-sounding roll. Among the ingredients listed in the roll is “tobiko,” Japanese for flying fish roe, often sprinkled on the top of assorted dishes as garnish.
http://www.foodrepublic.com/2013/04/19/what-is-tobiko-and-whats-up-with-the-different-colors/
Commercially, capelin is used for fish meal and oil industry products, but is also appreciated as food. The flesh is agreeable in flavor, resembling herring. Capelin roe (masago) is considered a high-value product.
https://en.wikipedia.org/wiki/Capelin
As a seafood, roe is used both as a cooked ingredient in many dishes and as a raw ingredient. The roe of marine animals, such as the roe of lumpsucker, hake and salmon, is an excellent source of omega-3 fatty acids. Roe from a sturgeon or sometimes other fishes is the raw base product from which caviar is made. The term soft roe or white roe denotes fish milt.
https://en.wikipedia.org/wiki/Roe
How to make raspberry masago sushi roll-Japanese recipe. more sushi recipes here: http://makesushi.org.
http://www.youtube.com/watch?v=qVrOJcbt25U
In this sushi video recipe Chef Devaux shows how to make raspberry masago, a great ingredient that can be used in any sushi recipe as a topping or rolled on the exterior of a ura maki like shown in this video. This is a simple yet delightful sushi roll recipe and just shows a slightly different way to do things.
http://www.youtube.com/watch?v=qVrOJcbt25U
what is masago
The masago is a high value product. Masago is a high-value product.