新加坡水库引进十足甲壳类动物

D. Yeo
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引用次数: 11

摘要

从新加坡水库引进的或外来的淡水十足甲壳类动物记录了一项正在进行的调查结果。水库中共记录到十足类动物4种,分别为淡水小龙虾(拟虾科)1种和淡水虾(拟虾科)3种,分别为兰氏沼虾、日本沼虾和膨体沼虾。在实际水库中没有发现原生十足类动物,但在汇入水库的森林溪流入口中发现了原生十足类动物。这四种植物都是通过观赏宠物贸易引进的,说明了这一入侵途径在新加坡的重要意义。到目前为止,这些引进的物种还没有对当地生态系统产生生态影响,尽管它们可能正在经历一个滞后阶段,或者引入更多入侵的外来十足类动物的可能性不能排除。
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INTRODUCED DECAPOD CRUSTACEANS IN SINGAPORE'S RESERVOIRS
Introduced or alien freshwater decapod crustaceans from Singapore's reservoirs are documented from the results of an ongoing survey. Four species of decapods were recorded in the reservoirs, viz., one freshwater crayfish, Cherax quadricarinatus (Parastacidae) and three freshwater shrimps, Macrobrachium lanchesteri, M. nipponense, and M. aff. inflatum (Palaemonidae). Native decapods were not found in the actual reservoirs, but in forest stream inlets draining into the reservoirs. All four species were introduced through the ornamental pet trade, indicating the significance of this invasion pathway in Singapore. As yet, no ecological impacts on native ecosystems are known for these introduced species, although the possibility that they could be undergoing a lag phase or of more invasive alien decapods being introduced cannot be discounted.
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