Sardine

Sardine and pilchard are common names for various species of small, oily forage fish in the herring suborder Clupeoidei. 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 (6 in) are sardines, and larger fish are pilchards.

The FAO/WHO Codex standard for canned sardines cites 21 species that may be classed as sardines. FishBase, a database of information about fish, calls at least six species pilchards, over a dozen just sardines, and many more with the two basic names qualified by various adjectives.

The word sardine first appeared in English in the 15th century, a loanword from French sardine, derived from Latin sardina, from Ancient Greek σαρδίνη (sardínē) or σαρδῖνος (sardĩnos), possibly from the Greek Σαρδώ (Sardō) 'Sardinia'. Athenaios quotes a fragmentary passage from Aristotle mentioning the fish σαρδῖνος (sardĩnos), referring to the sardine or pilchard. However, Sardinia is over 1000 km from Athens, so it seems "hardly probable that the Greeks would have obtained fish from so far as Sardinia at a time relatively so early as that of Aristotle." Although the Myceneans traded with the Sardinians during the latter Bronze Age.

The flesh of some sardines or pilchards is a reddish-brown colour similar to some varieties of red sardonyx or sardine stone; this word derives from σαρδῖον (sardĩon) with a root meaning 'red' and possibly cognate with Sardis, the capital of ancient Lydia (now western Turkey) where it was obtained. However, the name may refer to the reddish-pink colour of the gemstone sard (or carnelian) known to the ancients.

The phrase "packed like sardines" (in a tin) is recorded from 1845. The phrase "packed up like sardines" appears in The Mirror of Literature, Amusement, and Instruction from 1841, and is a translation of "encaissés comme des sardines", which appears in La Femme, le mari, et l'amant from 1829. Other early appearances of the idiom are "packed together ... like sardines in a tin-box" (1845), and "packed ... like sardines in a can" (1854).

Sardines occur in several genera.

Although they are not true sardines, sprats are sometimes marketed as sardines. For example, the European sprat, Sprattus sprattus, is sometimes marketed as the 'brisling sardine'.