The prevalence of Sphaerothecum destruens, a pathogenic parasite, was studied in two wild populations of topmouth gudgeon (Pseudorasbora parva), an invasive freshwater fish non-native to the Netherlands. Using genetic markers and sequencing of the 18S rRNA gene, we showed the prevalence of this parasite to be 67 to 74%. Phylogenetic analysis demonstrated a high similarity with known sequences o...

Predicting regions at risk from introductions of non-native species and the subsequent invasions is a fundamental aspect of horizon scanning activities that enable the development of more effective preventative actions and planning of management measures. The Asian cyprinid fish topmouth gudgeon Pseudorasbora parva has proved highly invasive across Europe since its introduction in the 1960s. In...

Climate change can have a significant impact on the Earth’s ecosystems. Invasive species will respond to climate change, and their responses ecological economic implications. Habitat suitability models (HSMs) are some of most important tools currently available for assessing potential impacts species. The projections model suitable conditions three invasive fish in Europe, Lepomis gibbosus, Per...

Length-weight relationships (L-WRs) and condition factors were estimated for eight exotic fish species, including Oreochromis niloticus, Coptodon zillii, Carassius auratus, C. gibelio, Pseudorasbora parva, Gambusia holbrooki, Lepomis gibbosus, Oncorhynchus mykiss from 10 basins of Turkish inland waters. A total 1958 specimens sampled in the years 2014, 2017, 2018, 2019 29 populations their LWRs...

Insufficient data on the origins of first introduced propagule and initial stages invasion complicate reconstruction a species’ history. Phylogeography native area profoundly shapes genomic patterns propagules which subsequent demographic processes are based. Thus, better understanding this aspect helps to disentangle invasive histories. Here, we used together with clustering methods, explicit ...

Length-weight relationship and condition factor were estimated in seven fish species, including Barbus cyri, Capoeta gracilis, Alburnoides eichwaldii, Pseudorasbora parva, Ponticola cyrius, Cobitis keyvani and Acanthalburnus microlepis from Shahrbijar River, Guilan Province, Iran. A total of 416 specimens ranging from 18 to 135 mm in total length and from 0.06 to 19.25 g in total weight were co...

The cercaria morphology of Echinochasmus japonicus was investigated using light and scanning electron microscopy. Cercariae, liberated from naturally infected snails (Parafossarulus manchouricus), had ovoid bodies and diminutive tails. The cercaria tegument was covered with minute spines. Four type II sensory papillae were observed on the dorsal side of the oral sucker, and type I papillae were...