内陆盐水水体枝角类研究述评

A review on the Cladocera in inland saline waters

The species composition and geographical distribution of Cladocera in inland saline waters was discussed, which spread all over the world, and the effect of environmental factors on. the distribution of the Cladocera was also analysed. It is concluded that the species' numbers of the Cladocera present trend towards declining as salinity incresing. Only a few of halobiont species occur in the hypersaline waters. However, many sait-tolerans freshwater species can present widely in the mesosaline or hyposaline waters. Salinity and ionic composition are major factors influencing the distribution of the Cladocera in saline waters. Moreover, temperature, alkalinity, pH, coefficient of ions as well as development rate of the Cladocera itself play an important part in these respects. The utilization and its prospects of the Cladocera in inland saline waters were also discussed in this paper. The paper showed that some of the halobiont or halophile species, such as Moina mongolica, Alona guttata, Daphnia magna and Bosmina sp., may be tamed and cultivated in large quantities in the sea waters for a long time. This would be a good pathway to provide live food formarine fishies and shrimp larval in aquaculture.