The term “Billfish” refers to certain predatory fish species belonging tothe family Istiophoridae.它们的特征包括一个矛状的喙或“喙”,用于砍杀和昏迷猎物。马林鱼、旗鱼、矛鱼和旗鱼都是长嘴鱼。Marlin and sailfish distribution range is basically worldwide throughout both tropical and temperate regions (seasonally).
A baby blue marlin in the larvae stage. The eye to body ratio is quite high! This marlin might weigh up to 1800 pounds at maturity!www.billfish.org
Baby marlin getting a bit bigger and starting to grow a dorsal fin. Marlin can grow to 14 feet. www.marlinquest.com
Baby marlins have large sail-like dorsal fins early on. Their bills do not develop until later on.reefbuilders.com
Baby marlin. A large dorsal sail but still no bill.www.billfish.org
Immature sailfish on the other hand have a large dorsal and large bill when young.
oceancurrents.rsmas.miami.edu
Baby sailfish with large bill. The dorsal fin is already quite large.www.willdrost.photoshelter.com
Baby sailfish.Ocean Defender Hawaii
12 inch long sailfish.onthewater.com
在加勒比海捕捉沙丁鱼的大西洋旗鱼。他们的大风帆使他们看起来很气派。Image:Doug Perrine.
Adult sailfish. Sailfish have been clocked at 68 mph. They are one of the fastest sea creatures out there. Sailfish are smaller than marlins rarely reaching 10 feet and most often weigh less than 200 pounds. Photo byMarc Montocchio.
Adult blue marlin. As they grow their dorsal fins recede but their bills grow as long as the sailfish. Marlins are are extremely fast. A black marlin has been clocked at 80 mph. The Atlantic blue fin marlin can reach 16.4 feet and weigh 1800 pounds. Photo byMarc Montocchio.
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