Freshwater Biology, Volume 71, Issue 9, September 2026.ABSTRACT River fragmentation through channelization and the construction of dams has strongly altered river ecosystems, leading to declines in native fish species and the proliferation of non‐natives. Knowledge gaps still exist about the effects of fragmentation on the structure of ecological assemblages throughout all habitats in large, fragmented ...
Jakob Neuburg +7 more
wiley +1 more source
Navigating the Genetic Landscape: Investigating the Opportunities and Risks of Cross-Species SNP Array Application in Catfish. [PDF]
Genes (Basel)Hegedűs B, Bagi Z, Kusza S.
europepmc +1 more source
DNA barcoding uncovers two putative new species in Trachelyopterus (Siluriformes: Auchenipteridae)
Journal of Fish Biology, Volume 109, Issue 3, Page 1856-1865, September 2026.Abstract Trachelyopterus is a cryptic genus within the Neotropical catfish family Auchenipteridae with a complex history of taxonomic revisions. Despite the notable morphological and genetic similarities among its species, some studies suggest that the genus harbours greater diversity than is currently recognized, including additional species yet to be
Fiorindo José Cerqueira +9 more
wiley +1 more source
Journal of Fish Biology, Volume 109, Issue 3, Page 1737-1746, September 2026.Abstract A new species of the small‐sized armoured catfish genus Neoplecostomus is described from Neotropical Atlantic coastal drainages, in southeast Brazil. The new species can be readily diagnosed from all congeners by having the first plates of the ventral series reduced in size, rounded and ventrally displaced, resulting in a naked band between ...
Pedro L. C. Uzeda +5 more
wiley +1 more source
Comprehensive mitogenomic insights into Hemibagrus velox endemic to Sumatra, Indonesia and its phylogenetic relationships within the Bagridae lineage. [PDF]
BMC GenomicsPutra A +11 more
europepmc +1 more source
Take my breath away: Defining the oxygen saturation threshold for fish cortisol stress response
Journal of Fish Biology, Volume 109, Issue 3, Page 1760-1770, September 2026.Abstract Human activities are affecting the number, size and severity of hypoxic zones in aquatic ecosystems. As oxygen is one of the most important abiotic factors affecting fish biology, exposure to low levels of dissolved oxygen may lead to a reduction in fitness.
Sébastien Alfonso +4 more
wiley +1 more source
Small fish, large variation: Morphological diversity of Weberian apparatus in Noturus catfishes and ecological implications. [PDF]
Anat Rec (Hoboken)Hoeflich JC, Liu J.
europepmc +1 more source
Impacts of predator odours and conspecific disturbance cues on minnow thermal tolerance
Journal of Fish Biology, Volume 109, Issue 3, Page 1786-1799, September 2026.Abstract Warming waters can affect fish community dynamics, potentially exacerbating predator–prey asymmetries in behavioural and physiological metrics of thermal tolerance. Further, differing responses of prey fish species to concurrent predation risk and warming highlight the need to understand these impacts in various contexts, especially with at ...
V. Groves +4 more
wiley +1 more source
Cryptic diversity in Astroblepus (Siluriformes: Astroblepidae): Integrative taxonomy reveals evolutionary complexity in the Esmeraldas River Basin, Ecuador. [PDF]
PLoS OneChugá-Puetate KP +4 more
europepmc +1 more source
Journal of Animal Physiology and Animal Nutrition, Volume 110, Issue 5, Page 663-673, September 2026.ABSTRACT This study investigated the physicochemical characteristics and chemical safety of commercial wet cat foods marketed in Brazil. Twenty products labeled as beef, chicken and fish flavors were analyzed for proximate composition, pH, lipid and protein oxidation, biogenic amines, and essential and potentially toxic trace elements.
Marina Teixeira de Vries Mársico +6 more
wiley +1 more source