Exotic Aquatic Organisms - International Development Research ...
Exotic Aquatic Organisms - International Development Research ...
Exotic Aquatic Organisms - International Development Research ...
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Today, most of these carps are polycultured commercially with considerable success, and<br />
their fry are exported in substantial volumes. Annual production of all these carps, put together,<br />
is currently 30,000 t.<br />
Macrobrachiusn rosenbergii<br />
Crustaceans<br />
Macrobrachium rosenbergii, also known as Malaysian prawn or giant river prawn, was<br />
introduced in 1970 from Thailand by Ling. From one male and one female, the only survivors<br />
from the entire shipment, thousands have been bred, spurred by the success achieved at the<br />
Tungkang Marine Laboratory (TML) of TFRI (Liao et al. 1973). This has facilitated the<br />
development of a relatively successful enterprise. Its monoculture makes up a big industry.<br />
Lately, M. rosenbergii has peculiarly become a popular species for game fishing in Taiwan.<br />
Penaeus stylirostris<br />
Penaeus stylirostris or blue shrimp was introduced from Panama in 1979 by Perysn and Lee<br />
(Liao and Chao 1983). It was the first saltwater prawn species introduced to Taiwan. Of the<br />
500,000 nauplii introduced, 50,000 were brought to TML, where they were successfully reared<br />
to the adult stage. However, there were difficulties met on inducing it to mate. As a result, this<br />
species has become extinct.<br />
P. vannawi<br />
P. vannamei or white leg shrimp was the second exotic shrimp introduced to Taiwan. In<br />
1981, 86 young P. vannamei were brought by Huang from Panama. Although this species grows<br />
well in Taiwan, it is hard to induce the shrimp to mate in captivity. Furthermore, this species is<br />
known to have latent infectious hypodermal and hematopoietic necrosis or IHHN (Bell and<br />
Lightner 1984), and this presents potential problems. Thus, care must be taken to identify the<br />
source of the P. vannamei introduced.<br />
P. brasiliensis<br />
P. brasiliensis, also known as red spotted shrimp or Guiyana pink, was introduced in 1981<br />
by Liao and Chao with the assistance of Instituto de Pesquisas de Marinha and Chang of Brazil<br />
(Liao and Chao 1983). Its culture has been intensively experimented, though only a size of 40 g<br />
was attained after a one-year growout (Liao and Chao 1983). Unfortunately, there are no more<br />
surviving P. brasiliensis in Taiwan.<br />
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