Predictions of species responses to climate change often focus on distribution shifts, although responses can also include shifts in body sizes and population demographics. Here, shifts in the distributional ranges ('climate space'), body sizes (as maximum theoretical body sizes, L∞) and growth rates (as rate at which L∞ is reached, K) were predicted for five fishes of the Cyprinidae family in ...

The main objective of this study was to collect new data on the occurrence, levels of priority and emerging organic compounds in freshwater fish sampled in the Rhone River. The 34 studied contaminants included alkylphenols, bisphenol A, polybromodiphenylethers (PBDE), perfluorinated compounds, hexabromocyclododecanes (HBCD), hexachlorobenzene and hexachlorobutadiene (HCBD). About 50 fish sample...

Fish are particularly sensitive to connectivity loss as their ability to reach spawning grounds is seriously affected. The most common way to circumvent a barrier to longitudinal connectivity, and to mitigate its impacts, is to implement a fish passage device. However, these structures are often non-effective for species with different morphological and ecological characteristics so there is a ...

Leuciscine fishes represent an important component of freshwater ichthyofauna endemic to northern Mediterranean areas. This lineage shows high intra-specific morphological variability and exhibits high levels of hybridization, two characteristics that contribute to systematic uncertainties, misclassification of taxa and, potentially, the mismanagement of biodiversity. This study focused on broo...

Some Cyprinid fish species: Cyprinion macrostomum (Heckel, 1843), Capoeta umbla Chondrostoma regium and Squalius cephalus (Linnaeus, 1758) living naturally in the Murat River, were investigated for Protozoan Crustacean parasite fauna their distribution. Fish samples collected from different stations between July 2017 - June 2019, examined Bingöl University Zoology Research Laboratory, data expl...

Specimens of two endemic cyprinids, Squalius laietanus (Catalan chub) and Barbus meridionalis (Mediterranean barbel), were sampled from a reference site in small stream the Ripoll River (NW Mediterranean) outside their reproductive season. Biomarkers involved xenobiotic-mediated responses individually contrasted fish both species 17 perfluoroalkyl substances (PFASs) analysed muscle to reveal bi...

khorasan-e-razavi province in the northeast of iran possesses varied climatic and geographical conditions that lead to a rich biodiversity. an investigation on the status of the fish fauna was carried out from march to october 2013. a total of 401 specimens was collected and identified, from 30 localities among seven counties in this province. sampling was performed using hand net, cast net and...

Morphological information is given on the adults of 4 trematodes from Mugil cephalus from estuarine waters of the northern Gulf of Mexico with complementary information from specimens from Georgia. Lasiotocus glebulentus sp. n., from the Gulf, possesses a submedian genital pore and apparently differs from all known species by containing several large concretions in the excretory vesicle. Data a...

Quality of fresh milt of grey mullet Mugil cephalus Linnaeus, 1758 was assessed based on motility grade, motility duration, sperm count and seminal plasma osmolality. Freshly collected milt from live males (n=17) were examined individually for motility assessment. Motility grade was four in fifteen samples whereas three in other two samples analysed. Other sperm quality parameters such as motil...