Results 21 to 30 of about 949 (159)

Invasive predatory fish occupies highest trophic position leading to expansion of isotopic niches in a riverine food web. [PDF]

Ecology
Abstract Invasive species are drivers of ecological change with the potential to reshape the structure and function of terrestrial and aquatic ecosystems. The invasive flathead catfish (Pylodictis olivaris) is an opportunistic predator that has established a rapidly growing population in the Susquehanna River, Pennsylvania, USA, since they were first ...
Hodgson OC, Stark S, Schall MK, Smith GD, Smalling KL, Wagner T.   +5 more
europepmc   +2 more sources

Winter predatory efficiency and periodicity of the non-native brown bullhead Ameiurus nebulosus. [PDF]

J Fish Biol
Abstract Winter is a challenge for fish in temperate regions as it is likely to create a bottleneck for small‐bodied fish due to starvation. Resource consumption could contribute substantially to the overwinter survival of fish. Nevertheless, fish feeding activity and related impacts at low temperatures are understudied.
Fritsch A, Staněk P, Buřič M, Kouba A, Veselý L, Balzani P.   +5 more
europepmc   +2 more sources

A Global Account of Established Non-Native Fish Species. [PDF]

Glob Chang Biol
This study compiles the most complete global database of non‐native fish species that have successfully established themselves in new freshwater and marine environments. It documents 1535 species across 193 countries, identifies their main introduction routes—such as aquarium trade, aquaculture, and artificial waterways—and highlights that many ...
Haubrock PJ, Novello M, Abreo NA, Błońska D, Sampaio Franco AC, Soto I, Castaldelli G, Katsanevakis S, Kouba A, Balzani P, Kurtul I, Tarkan AS, Briski E, Britton R.   +13 more
europepmc   +2 more sources

Trait-Based Biomonitoring Using eDNA Metabarcoding to Assess Anthropogenic Disturbances on Freshwater Fish Communities. [PDF]

Mol Ecol Resour
ABSTRACT Various anthropogenic disturbances affect the succession of aquatic habitats along dendritic river networks. Bioindicator taxa, such as fish, can be used to assess the effects of these disturbances on habitat quality. Environmental DNA (eDNA) metabarcoding offers a novel approach to complement traditional sampling and analysis of bioindicator ...
Morissette O, Côté G, Couillard MA, Pouliot R, Bernatchez L.   +4 more
europepmc   +2 more sources

Identifying Recruitment Sources Across Trophic Levels in a Large River Food Web. [PDF]

Ecol Evol
We quantified the recruitment sources of predators and their consumed prey across space and time in the Upper Mississippi River. Prey recruited more often than predators from tributaries to the mainstem river, indicating a direct (predators themselves) and indirect (consumed prey) use of tributaries to sustain predator populations.
Valentine SA, Bouska KL, Whitledge GW.
europepmc   +2 more sources

A Time-Calibrated Mitogenome Phylogeny of Catfish (Teleostei: Siluriformes).

PLoS ONE, 2016
A very significant part of the world's freshwater ichthyofauna is represented by ancient, exceptionally diverse and cosmopolitan ray-finned teleosts of the order Siluriformes.
Ilias Kappas, Spiros Vittas, Chrysoula N Pantzartzi, Elena Drosopoulou, Zacharias G Scouras   +4 more
doaj   +1 more source

Composición taxonómica de los helmintos parásitos de ictalúridos y heptaptéridos (Osteichthyes: Siluriformes) de México, con una hipótesis de homología biogeográfi ca primaria

Revista Mexicana de Biodiversidad, 2008
ICTALURIDAE Y HEPTAPTERIDAE (SILURIFORMES) SON 2 FAMILIAS DE PECES DULCEACUÍCOLAS DE ORIGEN NEÁRTICO Y NEOTROPICAL, RESPECTIVAMENTE, DISTRIBUIDAS EN MÉXICO.
GERARDO PÉREZ PONCE DE LEÓN, ROGELIO ROSAS VALDÉZ   +1 more
doaj   +1 more source

Ictaluridae

, 2016
Family Ictaluridae Ameiurus melas (Rafinesque) Black Bullhead Cucullanellus cotylophora Dichelyne robustus Rhabdochona sp. Ameiurus nebulosus (Lesueur) Brown Bullhead Camallanus oxycephalus Capillaria sp. Contracaecum sp. Cucullanellus cotylophora Dichelyne robustus Dioctophyme renale Eustrongylides tubifex Nematoda gen. sp.
Arai, Hisao P., Smith, John W.
openaire   +2 more sources

Environmental DNA Reveals the Fish Community Structure Exhibited Instability and Trend of Miniaturization in the Xijiang River Basin of the Guizhou. [PDF]

Ecol Evol
Monitoring of fish communities is of great significance for the management and sustainability of river ecosystems. Environmental DNA (eDNA) metabarcoding technology has been demonstrated to be a highly sensitive biomonitoring tool. Nevertheless, it has seldom been tested in mountainous rivers within the geographically complex Karst region.
Ma X, Huang F, Zhang R, Liu T, Zhang T, Zeng P.   +5 more
europepmc   +2 more sources

Comparative morphological analysis and body weight prediction of hormone-induced YY pseudofemale channel catfish, Ictalurus punctatus (Actinopterygii, Siluriformes, Ictaluridae) [PDF]

Acta Ichthyologica et Piscatoria
To advance the efficient all-male breeding of channel catfish, Ictalurus punctatus (Rafinesque, 1818), this study utilized YY pseudofemales obtained through hormone-induced sex reversal.
Ziyu Zhu, Hongyan Liu, Yongqiang Duan, Yi Chen, Siqi Zhang, Jiaqi Wang, Minghua Wang, Xiaohui Chen, Rui Duan, Shiyong Zhang   +9 more
doaj   +3 more sources