Results 1 to 10 of about 503 (136)

First data on parasites of the invasive brown bullhead Ameiurus nebulosus (Siluriformes: Ictaluridae) in Ukraine [PDF]

Helminthologia, 2023
This study describes the parasite community of non-native brown bullhead, Ameiurus nebulosus (Actinopterygii: Ictaluridae), collected at three sites in the river Vistula Basin (Lake Svitiaz, Lake Pisochne, and Lake on Plastova) and one site in the river ...
Tkachenko M. Yu., Dudliv I., Kvach Y., Dykyi I., Nazaruk K., Ondračková M.   +5 more
doaj   +5 more sources

New and previously known ectoparasitic monogenoids (Platyhelminthes) on native and non-native fishes from tributaries of the Usumacinta River basin (southern Mexico), a Neotropical transition zone [PDF]

International Journal for Parasitology: Parasites and Wildlife, 2023
During a research on morphological diversity of gill ectoparasites on native and non-native fishes from tributaries (Palizada, El Recreo and Lacantún rivers) of the Usumacinta River Basin in the states of Campeche, Tabasco, and Chiapas (southern Mexico),
Edgar F. Mendoza-Franco, Raúl E. Hernández-Gómez, Juan M. Caspeta-Mandujano   +2 more
doaj   +2 more sources

Multi-locus phylogeny of the catfish genus Ictalurus Rafinesque, 1820 (Actinopterygii, Siluriformes) and its systematic and evolutionary implications [PDF]

BMC Ecology and Evolution, 2023
Background Ictalurus is one of the most representative groups of North American freshwater fishes. Although this group has a well-studied fossil record and has been the subject of several morphological and molecular phylogenetic studies, incomplete ...
Rodolfo Pérez-Rodríguez, Omar Domínguez-Domínguez, Carlos Pedraza-Lara, Rogelio Rosas-Valdez, Gerardo Pérez-Ponce de León, Ana Berenice García-Andrade, Ignacio Doadrio   +6 more
doaj   +2 more sources

Ictalurus nazas sp. nov., a new species of North American catfish (Siluriformes, Ictaluridae) from Mexico [PDF]

ZooKeys
Catfishes of the genus Ictalurus (Ictaluridae) range geographically from southern Canada to northern Guatemala and Belize. The systematics of this genus remain unresolved, with recent studies suggesting the presence of cryptic diversity. This is the case
Edith Avila-Treviño, Gabriel Fernando Cardoza-Martínez, Fernando Alonzo-Rojo, Rodolfo Pérez-Rodríguez   +3 more
doaj   +4 more sources

Small fish, large variation: Morphological diversity of Weberian apparatus in Noturus catfishes and ecological implications. [PDF]

Anat Rec (Hoboken)
Abstract The Weberian apparatus is a hearing specialization unique to the otophysan fishes, and an unexpected degree of morphological variation exists in species of the Noturus catfishes. Our aim in this study is to investigate relationships between morphological variations and ecology that may drive this variation.
Hoeflich JC, Liu J.
europepmc   +2 more sources

Diplostomum-Induced Sac Formation in Lenses of Ameiurus Bullheads: A Host Defence Response? [PDF]

J Fish Dis
ABSTRACT Trematodes of the genus Diplostomum (Diplostomidae) are widely distributed and significant fish pathogens known for causing a range of negative effects. Any mechanism that protects the host from the parasite thus represents an evolutionary advantage.
Ondračková M, Valigurová A, Hodová I, Bartáková V, Tkachenko MY, Janáč M, Vetešník L.   +6 more
europepmc   +2 more sources

Fish Diversity and Environmental Relationships in the Jinsha River During the Initial Phases of the 10-Year Fishing Ban: A Metabarcoding Approach. [PDF]

Ecol Evol
Using eDNA metabarcoding, we identified 61 fish species in the Jinsha river during the early stage of the Yangtze river fishing ban. Fish diversity showed seasonal and regional variation, with Cypriniformes as the dominant group. Key environmental factors like temperature and dissolved oxygen were closely linked to diversity patterns.
Zhao Y, Wang Z, Hu F, Guo Z, Gong J, Li X, Yang D, Zhu T.   +7 more
europepmc   +2 more sources

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

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