One of the mysteries of the English language finally explained.
A small, slender Californian fish that swarms on to beaches at night to spawn. The eggs are buried in the sand and the young fish are swept out to sea on the following spring tide.
Leuresthes tenuis, family Atherinidae
- ‘Barracuda eat squid and small fish such as sardines, anchovies, young mackerels and grunions.’
- ‘She is here competing with other piscivorous (fish-eating) birds in search of anchovy, shiner perch and grunion to eat.’
- ‘This could also affect fish like the grunion, which spawn according to tidal changes.’
- ‘A similar set of tradeoffs may explain why surf smelt, which spawn in fine gravel, can spawn successfully lower in the intertidal zone than grunion, spawning in sand.’
- ‘Along with the grunion, these are the only marine fish known to fully emerge from water solely for the purpose of spawning.’
Early 20th century: probably from Spanish gruñón ‘grunter’.
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