Rudderfish

The rudderfish, Centrolophus niger, is a medusafish, the only member of the genus Centrolophus. It is a mesopelagic fish found in all tropical and temperate oceans at depths of 50 to 1,000 m. Its length is typically up to 60 cm, but it may reach 150 cm. ...
Found on http://en.wikipedia.org/wiki/Rudderfish

rudderfish

Seriola zonata noun fish having the habit of following ships; found in North American and South American coastal waters
Found on https://www.encyclo.co.uk/local/20974

rudderfish

rudderfish, common name for members of the family Kyphosidae, small-mouthed fishes of warm seas throughout the world. Also called sea chubs, rudderfishes commonly follow vessels (whence their name), scavenging on refuse. Best known is the Bermuda chub, averaging 3 to 4 lb (1.3–1.8 kg), common ...
Found on http://www.infoplease.com/ce6/sci/A0842618.html

rudderfish

[n] - fish having the habit of following ships
Found on http://www.webdictionary.co.uk/definition.php?query=rudderfish
No exact match found