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The stone moroko (Pseudorasbora parva), also known as the topmouth gudgeon, [1] is a fish belonging to the Cyprinidae family, native to Asia, but introduced and now considered an invasive species in Europe and North America. The fish's size is rarely above 8 cm and usually 2 to 7.5 cm (0.79 to 2.95 in) long.
A controlled study comparing six native fish species with the introduced (and invasive) eastern mosquitofish (Gambusia holbrooki) on consuming larvae of the common banded mosquito (Culex annulirostris) in Brisbane found that the empire gudgeon was as efficient at eating mosquito larvae as the eastern mosquitofish and is a good candidate for ...
Culter alburnus, the topmouth culter, is an East Asian species of freshwater ray-finned fish in the cyprinid genus Culter. Geographic distribution and habitat [ edit ]
Non-native invasive species can disrupt ecosystems because they do not have natural predators, or other ecological checks-and-balances. Thus, with less competition from native species, non-native populations can explode. [9] Invasive insects and pathogens have eliminated entire tree species from forests of the United States in as little as decades.
Western carp gudgeon are purportedly the most common of the carp gudgeons. However, recent genetic research suggests that the carp gudgeons are a cryptic species complex composed of at least four species and many hybrids; their taxonomy is extremely complicated, unresolved, and not accurately reflected by current scientific and common names.
Kessler's gudgeon is a shallow-bodied, silvery fish with a pointed snout that grows to a length of about 12 centimetres (4.7 in) or occasionally 15 centimetres (5.9 in). It has a pair of barbels by the mouth which help it locate food and which are long enough to reach to the far side of the eye. [ 3 ]
Further information can be found at the GB non-native species secretariat, [59] which has a free tool kit of resources on non-native species, including a photo gallery, ID sheets, risk assessments, projects database, case studies and resources for local action groups.
The Soldatov's gudgeon (Gobio soldatovi) is a species of gudgeon, a small freshwater fish in the family Cyprinidae. It is found in Asia in the Amur River drainage in Russia and China, on the Sakhalin Island, and in Lake Buir in Mongolia. It is a demersal fish, up to 12.0 cm long.