They include the primary freshwater fish that are found in upland streams, lowland streams, estuaries and reservoirs brackish species marine vagrants and diadromous species. In general, the term 'freshwater fish' refers to species that occur in freshwater environments, either occasionally or permanently. Most of these freshwater fish families can be found in Country Parks and other protected areas. There are 194 freshwater fish species here, mainly from the families named Cyprinidae, Gobiidae, Cobitidae and Cichlidae. Freshwater fish inhabit most Hong Kong watercourses, from swift flowing hill streams to trickling lowland rivers and estuaries, as well as artificial habitats like reservoirs, fishponds and agricultural wetlands. Hong Kong 's rivers and streams have quite a wide range of freshwater habitats that are suited to freshwater fishes, such as upland hill streams, lowland streams, estuaries and marshes. Indeed, only a few long meandering rivers are found in the floodplains of the northern and northwestern New Territories – and they are much smaller than rivers in most places. However, unlike streams, Hong Kong 's rivers are very limited in number. These hill streams are typically fast flowing at their upland sources, gradually reducing in speed as they run downhill towards the lowlands. ![]() In this hilly domain, there are hundreds of small rocky streams that flow through steep ravines. ![]() The local landscape is mostly dominated by steep hills and ravines, while the flat land is restricted to the low floodplains and coastal regions. Hong Kong is a small territory on the edge of the northern tropical zone. Tips and Codes of Observing Freshwater Fish Composition of Freshwater Fish in Hong Kong
0 Comments
Leave a Reply. |