Results 41 to 50 of about 813 (159)

A Meta‐Analysis on Environmental Triggers of Spawning Migrations Reveals a New Classification of Thermal Guilds in European Freshwater Fishes

open access: yesFish and Fisheries, Volume 27, Issue 3, Page 478-495, May 2026.
ABSTRACT Fish migration through river networks is essential for completing life cycles and accessing critical habitats, but fragmentation increasingly disrupts spawning movements. In Europe, over one million barriers limit connectivity and create trade‐offs between ecological integrity and human uses, such as hydropower, flood control, fisheries and ...
Christian Schlautmann   +5 more
wiley   +1 more source

The development and evolutionary origin of barbels in the channel catfish Ictalurus punctatus (Siluriformes: Ictaluridae) [PDF]

open access: yes, 2011
Understanding the origin of morphological novelties is an important goal of evolutionary developmental biology. In pursuit of this goal, we have examined the developmental genetic mechanisms that underlie growth and patterning in a largely overlooked ...
Hawkins, Michael Brent
core   +3 more sources

Comparing Aquatic Environmental DNA Collection Methods Across a Diel Cycle in a Lotic System

open access: yesEnvironmental DNA, Volume 8, Issue 2, March/April 2026.
Water samples were collected over 25 h from the Tangipahoa River, Louisiana, using active and passive environmental DNA methods to detect fish assemblages. Active sampling involved collecting water samples at hourly intervals for 25 h, whereas passive sampling deployed a stationary filter for 25 h.
Camden E. Oathout   +3 more
wiley   +1 more source

Short-term infection dynamics of the monogenean parasite Ligictaluridus floridanus (Monogenea: Dactylogyridea: Ancyrocephalidae) on channel catfish Ictalurus punctatus (Actinopterygii: Siluriformes: Ictaluridae) [PDF]

open access: yesActa Ichthyologica et Piscatoria
Ligictaluridus floridanus (Mueller, 1936) is a monogenean parasite that affects farmed channel catfish, Ictalurus punctatus (Rafinesque, 1818). No studies, however, have been conducted on this monogenean’s infection dynamics. The aim of this study was to
Jesús Genaro Sánchez-Martínez   +6 more
doaj   +3 more sources

Length–Weight Relationships for 22 Mid‐Atlantic Species Show Variability in Slopes Spatially, Temporally, and With Published Regressions

open access: yesJournal of Applied Ichthyology, Volume 2026, Issue 1, 2026.
Despite their importance in understanding stream food webs and community dynamics, small‐bodied and nongame fish remain relatively understudied. This is also true of the basic ecology for these taxa, such as calculating length–weight relationships (LWRs).
Matthew J. Wilson   +3 more
wiley   +1 more source

Brindled madtom [PDF]

open access: yes, 2016
NCTC Freshwater Fishes Teaching Collection: Order: Siluriformes Family: Ictaluridae Genus: Noturus Species: miurus Drainage1: Ohio River Drainage2: West Fork Site Location: Stonewall Jackson Lake Location State ...
Patterson, Matthew, USFWS
core   +4 more sources

A draft genome of the striped catfish, Pangasianodon hypophthalmus, for comparative analysis of genes relevant to development and a resource for aquaculture improvement

open access: yesBMC Genomics, 2018
Background The striped catfish, Pangasianodon hypophthalmus, is a freshwater and benthopelagic fish common in the Mekong River delta. Catfish constitute a valuable source of dietary protein. Therefore, they are cultured worldwide, and P. hypophthalmus is
Oanh T. P. Kim   +12 more
doaj   +1 more source

Evolutionary history of Middle American Rhamdia (Siluriformes: Heptapteridae) inferred from comparative mitogenomic data: Insights on historical biogeography and cave colonization in the group

open access: yesJournal of Systematics and Evolution, Volume 63, Issue 6, Page 1501-1518, November 2025.
Investigating the systematics and biogeography of Neotropical catfishes of the genus Rhamdia refined phylogenetic hypotheses, including deep paraphyly of Rhamdia laticauda, supported northward dispersal catalyzed by emergence of the Panamanian Isthmus and imply that cave colonization is widespread, convergent, and recent, with established cave‐dwelling
Jairo Arroyave   +6 more
wiley   +1 more source

Effects of Temperature, Air Exposure Time, and Bleeding on Post‐Release Movement of Angled Channel Catfish

open access: yesFisheries Management and Ecology, Volume 32, Issue 5, Page 320-329, October 2025.
ABSTRACT Catch‐and‐release angling is an effective conservation tool only when released fish survive. Measuring the physiological response of sportfish to capture has recently been enhanced by the use of accelerometers to measure post‐release movement.
Jason M. Qualich, Michael J. Louison
wiley   +1 more source

Microstructures of barbels and bony plates of Satyrichthys laticeps (Actinopterygii: Peristediidae)

open access: yesJournal of Fisheries, 2020
Barbels are sensory-appendage near the mouth of many fishes including Cyprinidae, Ictaluridae and Peristediidae and commonly used for identification of the species.
Arin Ngamniyom
doaj  

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