Sardine
Sardine and pilchard are common names for various species of small, oily forage fish in the herring family Clupeidae. The term 'sardine' was first used in English during the early 15th century; a somewhat dubious etymology says it comes from the Italian island of Sardinia, around which sardines were once supposedly abundant. The terms 'sardine' and 'pilchard' are not precise, and what is meant depends on the region. The United Kingdom's Sea Fish Industry Authority, for example, classifies sardines as young pilchards. One criterion suggests fish shorter in length than 15 cm are sardines, and larger fish are pilchards.
Source: Wikipedia
Recipes
20 sardine recipes to try today | Gourmet Traveller
Sardines have a dense, meaty flesh that's brought to life in the company of sharp, zingy counterparts. We have recipes for sardines in a pleasantly acidic escabeche or a sweet-and-sour agrodolce, or try Guy Grossi's recipe for soused sardines. There's...