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Sailfish (Genus: Istiophorus)
| 제목: | Sailfish (Genus: Istiophorus)
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From: scotttu@gate.net
Newsgroups: alt.binaries.pictures.fishing
Subject: Sail Pic - james sail.jpg (1/1)
Date: Wed, 07 Apr 1999 00:24:04 GMT
[Comment]
Sailfishes (genus Istiophorus) are fish living in all the oceans of the world. They are blue to gray in color and have a characteristic sail (dorsal fin) on top, which often stretches the entire length of the back. Another notable characteristic is the elongated bill, resembling that of a swordfish.
All sailfish species grow quickly, reaching 1.2 to 1.5 meters in length in a single year, and feed on the surface or at mid-depths on smaller pelagic fishes and squid. Individuals have been clocked at speeds of up to 68.5 mph, making them the fastest fish in the ocean. Generally, sailfish do not grow to more than 10 feet in length and rarely weigh over 200 pounds, although larger specimens have been seen off the shores of Costa Rica.
The sail is normally kept folded down and to the side when swimming, but it may be raised when the sailfish feels threatened or excited, making it appear much larger than it actually is. This tactic has also been observed during feeding, when a group of sailfish use their sails to "herd" a school of fish or squid.
Sailfish are highly prized game fish and are known for their incredible jumps.
Species
Atlantic sailfish, Istiophorus albicans.
Indo-Pacific sailfish, Istiophorus platypterus.
Text from: http://en.wikipedia.org/wiki/Sailfish |
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