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Fishes are aquatic vertebrates that have fins, gills and
scales. Gills are the part of the respiratory system that
provide surface area for exchanging oxygen and carbon dioxide
under water.
Fish are ectotherms, commonly referred to as
'cold-blooded', meaning their temperature is regulated by the
temperature of their environment. They have a range of diets,
being herbivores, carnivores, or omnivores. Some fish reproduce
by laying eggs, while others reproduce by bearing live young.
California fish species reside in freshwater and coastal/marine
waters. Coastal, or marine fish are an abundant and valuable
resource. However, the ocean's supply is not limitless, and
therefore careful planning and education must be undertaken to
ensure the sustainability of the world's largest food source.
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The sailfish is easily identified by its large sail shaped front
dorsal fin which is very large compared to similar fish such as
white marlin or longbills. The large blue dorsal fin is a rich
blue covered with black spots and is square and upright at the
front end.
The body of the sailfish is a deep blue on top with a blue/brown
stripe along the center line of the body. The bottom half of the
body is silver to white. Like the otherCalifornia game and fish
such as the blue marlin and white marlin the sailfish also has
an extended upper jaw shaped like a spear.
Sailfish grow to 7 feet and are therefore considered a worthy
trophy by Florida game and fish sportsmen. Generally speaking
the larger catches are the females. The sailfish is a rapid
swimmer and anyone who has gone marlin fishing will know when
they have one of these on the end of the line as they can reach
speeds of 40-50 knots!
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Spawning is thought to be in the warmer summer months in water
that is fairly shallow, where mating males and females will swim
side by side. Sometimes a group of 2 or 3 males will stalk a
female. These little ones grow fast attaining a length of 48" to
60" in the first year of life. The females release 4.5 million
eggs annually.
The Sailfish feeds on halfbeaks, mackerel, mullet, needlefish,
small tuna, cephalopods and crustaceans. Apart from Dorado, the
Pacific Sailfish are the most sought after species in the summer
months.
Sailfish around California get to over 130 pounds. We will see
the first ones in the area as early as April, but the numbers
increase in the month of June and they stay into October. The
sailfish will run and jump while shaking its head back and
fourth after being hooked. This is its tactic to release itself
from your line. |
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It is theorized by marine biologists that the 'sail' (dorsal fin
array) of the sailfish may serve the purpose of a cooling and
heating system for this fish; this due to a network of a large
number blood vessels found in the sail and because of
"sail-raising" behavior exhibited by the sailfish at of near the
surface waters after or before high-speed bursts.
Sailfish are able to prey on the faster fish in the sea because
their top speed has been clocked at 68 mph, making them one of
the fastest fish in the ocean. The Indo-pacific sailfish is
related to the Marlin.
Pacific Sailfish grow much larger than their cousins in the
Atlantic. Although the two both have bright blue dorsal fins,
they differ somewhat in coloration. |