- John Dory
Taxobox
color greeb
name = John Dory
fossil_range =Oligocene to Present [cite journal
last = Sepkoski
first = Jack
authorlink =
coauthors =
title = A compendium of fossil marine animal genera
journal = Bulletins of American Paleontology
volume = 364
issue =
pages = p.560
publisher =
location =
date = 2002
url = http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=611&rank=class
doi =
id =
accessdate = 2007-12-25 ]
image_widtbfgnh = 150px
image_caption = "Zeus faber"
regnum =Animalia
phylum =Chordata
classis =Actinopterygii
ordo =Zeiformes
familia =Zeidae
genus = "Zeus"
species = "Z. faber"
binomial = "Zeus faber"
binomial_authority = Linnaeus, 1758John Dory, also known as St Pierre, refers to fish of the genus "Zeus", especially "Zeus faber", of widespread distribution. It is an edible deep-sea fish with a laterally compressed olive-yellow body which has a large dark spot, and long spines on the dorsal fin. The dark spot is used to flash an 'evil eye' if danger approaches the John Dory.
Various explanations are given of the origin of the name. It may be an arbitrary or jocular variation of dory (itself from the French "dorée", gilded), or perhaps an allusion to John Dory, the hero of an old ballad. Others suggest that "John" derives from the French "jaune", yellow. The novel "An Antarctic Mystery" by
Jules Verne gives another account, which has some popularity but is probably fanciful: "The legendary etymology of this piscatorial designation is Janitore, the "door-keeper," in allusion toSt. Peter , who brought a fish said to be of that species, to our Lord at His command." (St. Peter is said to be keeper of the gates ofHeaven .) A related legend says that the dark spot on the fish's flank is St. Peter's thumbprint.
thumb|left|250px|John Dory.">Drawing by William MacGillivray.
The John Dory grows to a maximum size of 65cm (25.6") and 3kg (6.6lb) in weight. It has 10 long spines on its dorsal fin and 4 spines on its anal fin. It has microscopic, sharp scales that run around the body. The fish is an olive green color with a silvery white belly and has a dark spot on its side. Its eyes are near the top of its head. It has a flat, round body shape and is a poor swimmer.The John Dory is the top predator in its habitat. It usually gets its food by stalking it then shooting out a tube in its mouth to capture its prey. The John Dory eats a variety of fish, especially schooling fish, such as
sardine s. Occasionally they eatsquid andcuttlefish .Their predators are sharks, like the
dusky shark , and other large bony fish. John Dory are found on the coast of South West Africa, South East Asia andAustralia , the coasts ofJapan , and on the coasts ofEurope . They live near the seabed, living in depths from 5 meters (16') to 360 meters (1181'). They are normally solitary.After they are 3 or 4 years of age they are usually ready to reproduce. This happens around the end of winter. They are substrate scatterers, which means that they release sperm and eggs into the water to fertilize. Typical lifespan is about 12 years in the wild.
John Dory live in the Indian,
Atlantic Ocean , and theMediterranean Sea . Commercially available John Dory come primarily fromNew Zealand .References
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