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Others
/ Toxotidae / Archerfish
Archerfish
Toxotes jaculatrix | Pictures
Archerfish
[Pictures]
Toxotes
Synonyms: Labrus
jaculatrix, Sciaena jaculatrix, Toxotes jaculator
Physical description: The Archerfish is moderately elongated and laterally compressed with a pointed head.
The
eyes are large and set fairly far forward.
The large, deeply cleft mouth points upward toward the surface.
The
dorsal and anal fins are situated far back on the body. The body is silver to white and marked with 4-6 black bands
that run vertically from the top of the back to the middle of body.
The first runs through the eye while
the last runs across the caudal penuncle.
Some fish may be marked with irregular yellow markings.
The
caudal fin is silver to yellow in color, while the anal fin is black.
Size/Length: To 10" (25 cm)
Similar species: Other Toxotes
species.
Habitat: Found in brackish water (occasionally fresh) estuaries and mangrove swamps.
Southeast
Asia and Australia; India, Burma (Myanmar), Thailand, Malaysia, Philippines, Indonesia, to the Soloman Islands.
S: top
Aquarium: A tank measuring 40" (101 cm) with a capacity from 45-55 gallons (170-209 L) is minimal,
with larger tanks being preferred.
Archerfish prefer tanks at one-half to three-fourths full.
Use
plants that grow above the water surface that can tolerate brackish water.
Provide hiding places with heavily planted
areas, rocks, roots, and wood.
Leave some open swimming areas.
Water chemistry: pH 7-8 (7.5), 10-18 dH (12), 77-88°F (25-31°C).
A 1-2% addition of salt is required.
Add
7.5-15 tsp. of salt to every 10 gallons (10-20 g/10 L).
Social behavior: The Archerfish may be skittish when kept with larger fish.
Archerfish form schools and should
be kept in groups.
Avoid combining Archerfish of different sizes as they may lack cohesion, with larger fish
harassing smaller ones.
A peaceful, calm fish recommended for a brackish water community tank.
Suggested companions: Monos, Scats, Puffers,
Arius catfish, Mudskippers
FOOD:
Takes food from the surface.
Live: Insects; flies, spiders, crickets, mosquitoes, grasshoppers,
beetles, cockroaches, meal worms; worms; insect larvae; crustaceans; small surface fish.
May
occasionally takes flakes and pellets.
SEX: Unknown
Breeding techniques: Breeding has been accomplished accidentally on a few occasions.
The pair spawns close to the surface
and about 3000 floating eggs are laid.
The eggs should be transferred to a rearing tank where they hatch in
12 hours.
Feed young small insects and live food that can be taken from water surface.
Breeding potential: 10.
Breeding has only been accomplished on a few occasions and details are little.
Remarks:
Archerfish have the ability to shoot stream of water from their mouth to knock insects
and small animals from plants above the water.
They have excellent eye sight and spend the daytime hours patrolling
just below the water surface for prey.
When an insect is spotted, the fish takes aim, with the tip of its
snout just above the water surface, and shoots. The stream of water usually will find its target, knocking the
insect into the water.
The Archerfish has incredible accuracy-over 99% of shots of adult fish hit their targets.
The
way the Archerfish is able to shoot down its prey is actually fairly simple. The tongue and the roof of the mouth
form a tube that measures about 1/16" in width.
When the mouth is filled with water, the sudden closure of the gills
forces water through the tube and out of the mouth.
The fish can control the duration and the range-up to 5 feet (1.5 m)-of
the water stream.
Young individuals learn how to shoot when about 1" (2.5 cm) long, but lack the characteristic
accuracy of adult fish.
Accuracy and range increases with size and age.
Difficulty of care: 6.
The Archerfish is a robust, interesting brackish water species that requires a diet of
live foods.
Recent articles about fish
Overfishing may hurt Amazon forest trees
(2/5/2008) Overfishing is reducing the effectiveness of seed dispersal by fish in the Brazilian Pantanal, reports Nature. The research suggests that fishing practices can affect forest health.
Scientists find fish that literally lives in trees
(10/17/2007) Scientists have found a fish that literally lives in trees, according to research published in The American Naturalist and highlighted in New Scientist Magazine.
Piranhas originated when Amazon was flooded by seawater
(12/4/2007) South America's piranha family of fish -- notorious as eaters of flesh -- can be traced back to a single ancestor which dispersed when the Amazon was flooded by seawater some five million years ago, report researchers from the Institut de Recherche Pour le Developpement (IRD). Today piranhas are exclusively freshwater fish found from the Orinoco River basin in Venezuela to the Parana in Argentina.
How to save the world's oceans from overfishing
(7/8/2007) Global fishing stocks are in trouble. After expanding from 18 millions tons in 1950 to around 94 million tons in 2000, annual world fish catch has leveled off and may even be declining. Scientists estimate that the number of large predatory fish in the oceans has fallen by 90 percent since the 1950s, while about one-quarter of the world's fisheries are overexploited, depleted, or recovering from depletion. Despite these dire trends, the situation is changing. Today some of the world's largest environmental groups are focused on addressing the health of marine life and oceans, while sustainable fisheries management is at the top of the agenda for intergovenmental bodies. At the forefront of these efforts is Mike Sutton, director of the Monterey Bay Aquarium's conservation program: the Center for the Future of the Oceans. The aquarium, which has long been recognized as one of the world's most important marine research facilities, is pioneering new strategies for protecting the planet's oceans. Sutton says the approach has four parts: establishing new marine protected areas, pushing for ocean policy reform, promoting sustainable seafood, and protecting wildlife and marine ecosystems.
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