Results 41 to 50 of about 3,562 (180)

Bony fish genomes: Status and gaps

open access: yesJournal of Fish Biology, EarlyView.
Abstract Bony fish constitute an exceptionally species‐rich group of aquatic vertebrates, comprising more than 95% of all living fish. The adaptive processes on the diversity of environments they inhabit make them a highly diverse group from taxonomic, morphological and evolutionary standpoints.
Noelia Pérez‐Pereira   +3 more
wiley   +1 more source

The complete mitochondrial genome of Hemibagrus spilopterus (Teleostei: Siluriformes)

open access: yesMitochondrial DNA. Part B. Resources, 2019
Hemibagrus spilopterus is a tropical freshwater fish with high nutritional value. Here, we present the complete mitogenome of H. spilopterus. It was a circular molecule with 16,521 bp in length and contained 22 tRNA genes, 13 protein-coding genes, 2 rRNA
Kyaw Kyaw Htun, Huamei Pan, Zuogang Peng
doaj   +1 more source

Chromobacterium violaceum (Schröter 1872) isolated from the aquatic environment associated with the fish culture of Jaú, Zungaro jahu (Ihering, 1898) (Siluriformes, Pimelodidae)

open access: yesBioscience Journal, 2017
The jau, Zungaro jahu (Ihering, 1898) is an endangered species, rheophilic, reaching 1.5 m and more than 100 kg. During a work of microbiological monitoring of water quality, in the cultivation of Zungaro jahu, microorganisms that were isolated, were ...
Renato Ventresqui de Oliveira   +7 more
doaj   +1 more source

High trophic niche overlap between sympatric peacock basses (Cichliformes: Cichlidae: Cichla): Concordant findings from three dietary analysis methods

open access: yesJournal of Fish Biology, EarlyView.
Abstract Dietary analysis has contributed to our understanding of animal niches, interspecific interactions, community structure and the flow of matter and energy in food webs. We employed three methods of dietary analysis to estimate trophic niche overlap between two peacock bass species, Cichla cataractae and Cichla ocellaris, across sympatric ...
Benton L. Fry   +2 more
wiley   +1 more source

DNA barcoding uncovers two putative new species in Trachelyopterus (Siluriformes: Auchenipteridae)

open access: yesJournal of Fish Biology, EarlyView.
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

A new sexually dimorphic species of the armoured catfish genus Neoplecostomus (Siluriformes: Loricariidae) from Neotropical Atlantic coastal drainages

open access: yesJournal of Fish Biology, EarlyView.
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

A cytogenetic study of Diplotnystes mesembrinus (Teleostei, Siluriformes, Diplomystidae) with a discussion of chromosome evolution in siluriforms [PDF]

open access: yesCaryologia, 2000
The mitotic chromosomes, nucleolus organizer regions (NORs), C-banding pattern and nuclear DNA content of Diplomystes mesembrinus were studied. The karyotype, with 2n=56 chromosomes (22m+24sm+6st+4a), has a high chromosome arm number (NF = 102), one chromosome pair with NORs, and a very small amount of heterochromatln.
Oliveira, Claudio, Gosztonyi, Atila E.
openaire   +2 more sources

Cytotaxonomic and evolutionary considerations about karyotipic data of fishes from the Iguaçu River Basin in South of Brazil

open access: yesBrazilian Archives of Biology and Technology, 2007
The cytogenetic data available in the literature about the ichthyofauna of the Iguaçu River basin were analyzed in this review. The ichthyofauna was characterized by the high level of endemism and by the low diversity of species.
Daniel Luis Zanella Kantek   +4 more
doaj   +1 more source

Taxonomic inflation in fish systematics: A critical review with illustrative evidence assessment and integrative case study of the Salmo trutta Complex

open access: yesJournal of Fish Biology, EarlyView.
Abstract Fish species are being described at an accelerating rate, but a substantial fraction of recent descriptions rests on evidentiary standards too weak to distinguish genuine species‐level discontinuities from intraspecific variation, local adaptation and the artefacts of single‐marker analyses, a pattern of taxonomic inflation with documented ...
Ilhan Altinok
wiley   +1 more source

Siluriformes

open access: yes
Published as part of Freyhof, Jörg, Yoğurtçuoğlu, Baran, Jouladeh-Roudbar, Arash & Kaya, Cüneyt, 2025, Handbook of Freshwater Fishes of West Asia, GmbH, Berlin / Boston :De Gruyter on page 585, DOI: 10.1515/9783111677811, http://zenodo.org/record ...
Freyhof, Jörg   +3 more
openaire   +2 more sources

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