Results 11 to 20 of about 3,071 (209)

Hallazgos de ninfas de pentastomidos en Ictalurus meridionalis (Pisces: Ictaluridae) en el río San Pedro, Balancán, Tabasco. Nota de inestigación

open access: yesEcosistemas y Recursos Agropecuarios, 2014
Se registra pór primera vez para México, una larva e pentastómido (metazoarios) parasitando a peces de agua dulce (Ictalurus meridionalis). Para obtener el articulo completo pueden contactar al Editor de la Revista Ecosistemas y Recursos Agropecuarios ...
Raúl Pineda López   +1 more
doaj   +2 more sources

First record of the Black Bullhead Ameiurus melas (Pisces, Ictaluridae) in the Republic of Macedonia

open access: yesMacedonian Journal of Ecology and Environment, 2017
The North American catfish – the black bullhead, Ameiurus melas (Rafinesque, 1820) is recorded for the first time in the Republic of Macedonia, in Pčinja River.
Milica Ristovska   +5 more
openaire   +2 more sources

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

open access: yesAnat 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]

open access: yesJ 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   +6 more
europepmc   +2 more sources

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

open access: yesMol 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   +4 more
europepmc   +2 more sources

Farm-Raised Channel Catfish

open access: yesEDIS, 2012
This document is about Channel catfish (Ictalurus punctatus). Channel catfish belong to the family Ictaluridae, in the large catfish order Siluriformes.
Frank A. Chapman
doaj   +5 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]

open access: yesEcol 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   +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]

open access: yesEcology
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   +5 more
europepmc   +2 more sources

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

open access: yesJ 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   +5 more
europepmc   +2 more sources

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