| post-embryonic development of camallanus cotti (nematoda: camallanidae), with emphasis on growth of some taxonomically important somatic characters. | in this paper, the quantitative post-embryonic development of the asian freshwater fish nematode camallanus cotti fujita, 1927, is described. larval and adult morphometrics were obtained by following the parasite's life cycle experimentally using copepods macrocyclops albidus (jurine) as intermediate host and guppies poecilia reticulata (peters), southern platyfish xiphophorus maculatus (günther) and paradise fish macropodus opercularis (l.) as definitive host. additionally, adult worms were obt ... | 2002 | 12418817 |
| invasion success and genetic diversity of introduced populations of guppies poecilia reticulata in australia. | high genetic diversity is thought to characterize successful invasive species, as the potential to adapt to new environments is enhanced and inbreeding is reduced. in the last century, guppies, poecilia reticulata, repeatedly invaded streams in australia and elsewhere. quantitative genetic studies of one australian guppy population have demonstrated high additive genetic variation for autosomal and y-linked morphological traits. the combination of colonization success, high heritability of morph ... | 2005 | 16202088 |
| overview of the current international trade in ornamental fish, with special reference to singapore. | the value of international trade in ornamental fish in 1992 was us$247 million, based on import statistics, or us$140 million, based on export statistics. between 1983 and 1992, annual growth of imports and exports averaged 21% and 16%, respectively. more than 100 countries are involved in this trade. the top five exporting countries in 1992 were singapore (32%), hong kong (11%), the united states of america (usa) (11%), the netherlands (7%) and germany (6%). the top five importing countries wer ... | 1996 | 8890375 |