Order - Albuliformes
Family - Albulidae
Genus - Albula
Species - vulpes
Linnaeus described the bonefish in 1758, designating it a species within the genus Esox, a taxon that at the time
already referred to at least one species of the holarctic freshwater pikes and pickerels. Recognizing the conflict,
later workers placed the bonefish in the available genus Albula. The scientific name Albula vulpes
is derived from Latin, and can be translated as "white fox". Other synonyms of Albula vulpes include,
Esox argenteus, Albula conorynchus, Albula plumier, Amis immaculata, Clupea brasilienses,
Clupea macrocephala, Butyrinus bananus, Engraulis sericus, Engraulis bahiensis,
Glossodus forskalii, Albula goreensis, Albula parrae, Albula seminuda, Albula
rostrata, Esunculus costai, Atopichthys esunculus, and Albula virgata. At least one
other species of bonefish exists, the shafted bonefish, described and named by Fowler as Dixonina nemoptera
in 1911. However, some scientists argue that the differences between the two species do not warrant genetic separation,
and that both should be included within the genus Albula.
Commonly, bonefish are named for the many fine bones they contain. English common names include banana, bananafish,
Indo-Pacific bonefish, ladyfish, round jaw, salmon peel, tarpon, tenny, and tenpounder. Other common names include
albula (Polish), albule (French), albulid (Swedish), banane (French), banane de mer (French), banang (Malay),
beenvis (Afrikaans), bending curut (Javanese), bidbid (Tagalog), bonouk (Arabic), bulat daun (Malay), carajo
(Spanish), chache (Swahili), colepinha malabu (Creole), colvino (Spanish), conejo (Spanish), damenfisch (German),
far al bahar (Arabic), frauenfisch (German), gatico (Spanish), gato (Spanish), hermaanchi (Papiamento), inliaula
(Spanish), ioio (Tahitian), juruma (Portuguese), kifimbo (Swahili), kiokio (Tuamotuan), lasca (Portuguese),
lasca boca redonda (Portuguese), liguija (Spanish), macabi (Spanish), macabi del helbra (Spanish), macabie (Spanish),
macaco (Spanish), mnyimbi (Swahili), mursani (Portuguese), naiskala (Finnish), nginaan (Wolof), nifa (Tuamotuan),
osso (Portuguese), panya (Swahili), parra (Spanish), peixe-banana (Portuguese), peje gato (Spanish), pepisang
(Malay), raton (Spanish), raton de mar (Spanish), sanducha (Spanish), sorte de mulet (French), soto-iwashi (Japanese),
suld (Palauan), tarr (Arabic), te ikari (Kiribati), te kiokio (Tuvaluan), ten-pounda (Creole), yu (Kumak), and zorro (Spanish).
Bonefish inhabit tropical and warm temperate waters worldwide, Although western Atlantic bonefish are occasionally taken
as far north as North Carolina, New York, and New Brunswick, this species is most plentiful in south Florida, the Bahamas,
and Bermuda. To the south, they range throughout the Caribbean Sea to Brazil. On the eastern Pacific coast, the bonefish
occurs from San Francisco Bay, California, south to Peru and west to Hawaii.
World distribution map for the bonefish
Bonefish are predominately a coastal species, commonly found in intertidal flats, mangrove areas, river mouths, and
deeper adjacent waters. The flats vary in composition from sand or grass to rocky substrates. Bonefish can tolerate
the oxygen-poor water they sometimes encounter in coastal habitats by inhaling air into a lung-like air bladder.
Bonefish typically school, sometimes in groups of up to 100 individuals. Studies in the Bahamas using ultrasonic
telemetry demonstrated the daily patterns of bonefish consist of a movement to shallow water during the rising tide,
and a retreat into deeper water during a falling tide. Bonefish are also known to move from particular sites (creek,
channel, bay, etc.) after inhabiting the location for a maximum period of several days. Over the long-term movements
between such "favorite" sites seem to occur without any discernable pattern. During summer months, larger individuals tend to remain in deep water,
rarely moving onto the flats; they reappear in autumn, as water temperatures grow cooler.
© Kenneth Krysko
Importance to Humans
- · Distinctive Features
One of the most distinctive characteristics of the bonefish is the inferior mouth and conical nose that protrudes
a third of its length beyond the mandible. The body is slender, round, and compressed, more so in large specimens
than in young adults. The dorsal profile is more convex than the ventral profile. The first few rays of the dorsal
fin are higher than the following rays and this lends a somewhat triangular shape to the dorsal fin when erect.
The caudal fin is deeply forked, with the upper lobe slightly larger than the lower.
Bonefish tailing on shallow water flats
© Kenneth Krysko
- · Coloration
Bonefish appear blue-greenish above, with bright silver scales on the sides and below.
Dark streaks run in between the rows of scales, predominantly on the dorsal side of the body. The dorsal and caudal
fins have dusky margins. Bonefish have no spines. Juvenile bonefish exhibit a series of nine dark crossbands on
their backs. These bands extend nearly to the lateral line, with the third band crossing at the origin of the
dorsal fin. Bands four and five are found under the posterior base of the dorsal fin. As the juvenile bonefish
age the bands begin to disappear with the posterior bands the first to fade. Beyond about 3 inches (7.5 cm) the
dark longitudinal streaks characteristic of the adults begin to appear and the last of the crossbands become
Granular teeth, forming specialized dental plates, cover the tongue and upper jaw of the bonefish. Similar grinders
are also present in the throat. The bonefish uses these modified teeth to grind its mollusk and crustacean prey.
- ·Size, Age, and Growth
In the Caribbean Sea and western Atlantic Ocean, the bonefish reaches a maximum length of about 31 inches (77 cm) and
a weight of 13 or 14 pounds. Floridian and Bahamian fish often range from 4-6 pounds (1.8-2.7 kg), with fish over 8
pounds (3.6 kg) regarded as large. However, bonefish taken from Africa and Hawaii may attain weights over 20 pounds
(9.1 kg). Bonefish reach sexual maturity between 3 and 4 years of age, at which point they are typically between 17
and 19 inches (43-48 cm) in length. Bonefish may live in excess of 19 years.
Opsanus beta, a
common prey item of the bonefish
© David Snyder
- · Food Habits
The bonefish uses its conical snout to dig through the benthos to root up its prey,
which it crushes and grinds with its powerful pharyngeal teeth. Bonefish feed on benthic and epibenthic prey, often
in water less than 30 cm (12 inches) in depth. In south Florida, the prey consists primarily of crustaceans (xanthid
crabs, portunid crabs, alphiid shrimp, penaeid shrimp), mollusks (clams and snails), polychaete worms, and fishes
(primarily the gulf toadfish, Opsanus beta). The gulf toadfish is commonly found in the stomachs of larger bonefishes.
Bahamian populations of bonefish appear to feed more heavily upon bivalves than do Florida Keys bonefish.
Bonefish forage primarily on the flats, entering shallow water on rising tides. While in motion, schooling bonefish
travel at the same speed and at a constant distance from each other. When feeding, the bonefish disperse slightly from
the school but will reunite if frightened, again traveling in a patterned formation. Bonefish do not always travel in
schools, but may also be found singly or in pairs. Schools of similar sized fish may consist of 4-6 individuals, or
may number in the tens or hundreds. Large adult specimens are solitary.
- · Reproduction
Bonefish spawning occurs year round. Sexual maturity is reached at two years and near
ripe females may be as small as 9 inches (25 cm). In the Florida Keys, bonefish spawn in deep water where currents
can easily disperse the developing eggs and larvae to other locations. Bonefish are less reproductively active during
the hotter summer months, while spawning peaks from November through June.
Bonefish possess a leptocephalus larval stage, a reproductive strategy seen elsewhere only amongst the closely
related tarpons and eels. The transformation from the transparent, ribbon-like leptocephalus to juvenile bonefish
occurs in three distinct stages. Early stage 1 leptocephali lack dorsal, anal, and pectoral fins and are small,
usually less than about 30mm. Late in stage 1 the nascent dorsal and anal fins appear and the larvae approaches
its maximum size of approximately 63mm. At this length the larvae begins a rapid metamorphosis in which the entire
body shrinks for 10-12 days until it reaches half its original length. During this transformation (stage II) the
anal and dorsal fins move forward and the snout projects noticeably beyond the mandible. The subsequent appearance
of scales, the lateral line, and the onset of an overall appearance of that of a miniature bonefish mark the
transformation to a fry (stage III). Pigmentation and crossbands appear at about 4 cm in length, followed by
the appearance of longitudinal stripes and the disappearance of the crossbands.
- · Predators
Sharks and barracuda often prey on bonefish. Bonefish are built for speed out of necessity, as the only defense
they have is to flee their predators. Bonefish are alert and wary; whole schools may be easily spooked, making them
difficult for fishers to catch.
Barracuda, a predator of the bonefish
Happy bonefish angler!
In Florida, the commercial sale of bonefish is prohibited. Bonefish caught by recreational fishers must
be larger than 18 inches (45.7 cm), with a bag limit set at one fish per angler per day. This minimum length is
less than the minimum length that the female must reach to be sexually mature. However, like the tarpon, permit,
and other gamefish of the western Atlantic, bonefish provide the base for a large charter industry in Florida, the Bahamas,
and throughout the Caribbean. Thus, most bonefish guides and
anglers esteem the bonefish to such a degree that bonefish are nearly always released unharmed. Most mortality
attributed to human activity occurs from injuries incurred when being landed, such as "gut hooking" or sharks that
take advantage of the hooked fish. Although this is considered an important game fish, the flesh is bony and not highly
© Judd Wise
Bonefish caught on flyfishing gear
Danger to Humans
© Kenneth Krysko
Bonefish pose no threat to humans, though ciguatera poisoning may result if eaten.
Other than the size and bag limits listed above, the bonefish is not listed as endangered or vulnerable with the
World Conservation Union (IUCN). The IUCN is a global union of states,
governmental agencies, and non-governmental organizations in a partnership that assesses the conservation
status of species. However, although local bonefish populations may not be affected by overfishing thanks to
widespread catch and release practices, the fish may suffer from post-release mortality and poor water quality.