Asian Bonytongue
The Asian bonytongue (Scleropages formosus) is a tropical
freshwater fish native to Indonesia, Thailand, and Malaysia, and
islisted as endangered under the ESA and included on Appendix I of
CITES. Although the species was historically harvested for consumption,
its demand for the aquarium pet trade, along with other factors such as
habitat loss, resulted in significant declines throughout its range.
Reclassification of the species under the ESA is not likely due to
continuing concern for its overall status. However, since the greatest
single threat to the species is illegal collection for the pet trade,
captive propagation that results in a controlled legal supply of
specimens could significantly reduce the pressure on wild populations.
Additionally, the breeding of native species in captivity for
commercial purposes may, in some cases, facilitate the eventual release to the
wild of a percentage of the progeny from such operations.
In 1986, efforts began on the development of captive propagation
techniques for the Asian bonytongue. In 1992, the first captive-
breeding facility was registered under the requirements of CITES, and
legal exports began. There are currently 28 registered breeding
facilities in these three countries, reportedly with an annual
production level of around 300,000 fish. Each exported specimen is
marked with a coded microchip to assist law enforcement efforts to help
ensure that only legally produced fish are traded. The CITES
requirement for certifying facilities as bred in captivity is designed
to remove collection pressure on wild populations and ensure that trade
is not detrimental to the survival of the species, but CITES does not
require in-situ conservation projects.
Since the approval of the first captive-breeding facility, we have
denied several permit applications for the import of captive-bred Asian
bonytongue. As one of the world's largest importers of aquarium fish,
the United States could play a significant role in encouraging
conservation of the Asian bonytongue through the issuance of permits if
we require, as a condition of issuance of an import permit, that the
specimens are bred in captivity and, a program is established to
conserve the species in the wild . Our willingness to consider allowing
import of captive-bred fish under ``enhancement of survival'' permits
could provide an incentive for development of new conservation
programs.