Results 81 to 90 of about 3,178 (226)

Tails of Biodiversity: Vertebrate Community Assessment in a Neotropical River Basin via eDNA Metabarcoding

Environmental DNA, Volume 8, Issue 1, January–February 2026.
This study used environmental DNA (eDNA) metabarcoding to assess vertebrate biodiversity in headwater streams of the Rio Santo Antônio basin, southeastern Brazil, a tributary of the Rio Doce. A total of 119 vertebrate OTUs were identified, with oxidation–reduction potential emerging as the strongest environmental predictor of species richness.
Larissa Moreira‐Silva, Rennan Garcias Moreira, Jim Perry, Walisson Kenedy‐Siqueira, Guilherme Costa Baião, Daniel Negreiros, Fernando Figueiredo Goulart, Josimar Daniel Gomes, Geraldo Wilson Fernandes   +8 more
wiley   +1 more source

Endoskeletal structure inCheirolepis(Osteichthyes,Actinopterygii), An early ray‐finned fish [PDF]

Palaeontology, 2015
AbstractAs the sister lineage of all other actinopterygians, theMiddle toLateDevonian (Eifelian–Frasnian)Cheirolepisoccupies a pivotal position in vertebrate phylogeny. Although the dermal skeleton of this taxon has been exhaustively described, very little of its endoskeleton is known, leaving questions of neurocranial and fin evolution in early ray ...
Giles, S, Coates, MI, Garwood, RJ, Brazeau, MD, Atwood, R, Johanson, Z, Friedman, M   +6 more
openaire   +5 more sources

Chromosome evolution in fishes: a new challenging proposal from Neotropical species

Neotropical Ichthyology
We present a database containing cytogenetic data of Neotropical actinopterygian fishes from Venezuela obtained in a single laboratory for the first time. The results of this study include 103 species belonging to 74 genera assigned to 45 families and 17
Mauro Nirchio, Anna Rita Rossi, Fausto Foresti, Claudio Oliveira   +3 more
doaj   +1 more source

Serum amyloid A is a positive acute phase protein in Russian sturgeon challenged with Aeromonas hydrophila

Scientific Reports, 2020
The immune system of sturgeons, one of the most ancient and economically valuable fish worldwide, is poorly understood. The lack of molecular tools and data about infection biomarkers hinders the possibility to monitor sturgeon health during farming and ...
Mauricio Castellano, Valeria Silva-Álvarez, Marcio Aversa-Marnai, María Lamas-Bervejillo, Ignacio Quartiani, Alejandro Perretta, Andrea Villarino, Ana María Ferreira   +7 more
doaj   +1 more source

Non‐invasive reconstruction of complete mitochondrial genomes from aquatic environmental DNA using PCR‐free long‐read sequencing

Methods in Ecology and Evolution, Volume 17, Issue 1, Page 99-110, January 2026.
Abstract Environmental DNA (eDNA) enables non‐invasive assessment of aquatic biodiversity. Because eDNA is typically diluted and fragmented, most applications rely on short mitochondrial amplicons, which often fail to resolve closely related species and do not support individual‐level inference. However, intact or near‐full‐length mitochondrial genomes
Hinano Mizuno, Hidenori Tanaka, Yoshikazu Furuta, Nobuhiko Muramoto   +3 more
wiley   +1 more source

Measuring juvenile habitat quality for fishes and invertebrates

Biological Reviews, Volume 100, Issue 6, Page 2346-2395, December 2025.
ABSTRACT Identifying the role of marine and estuarine habitats in supporting fish and invertebrate populations during vulnerable juvenile life stages is essential to achieve effective conservation and fisheries management. There remains general agreement that: (i) the quality of juvenile habitat is best measured as the contribution of juveniles to ...
Benjamin J. Ciotti, Elliot J. Brown, Francesco Colloca, David B. Eggleston, A. Challen Hyman, Olivier Le Pape, Romuald N. Lipcius, Margot A. M. Maathuis, Suzanne S. H. Poiesz, Kenneth A. Rose, Rochelle D. Seitz, Daniele Ventura, Karen E. van de Wolfshaar   +12 more
wiley   +1 more source

Spatiotemporal Patterns of Gene Expression Associated With Mating Stimuli in the Brain of Female Guppies

Genes, Brain and Behavior, Volume 24, Issue 6, December 2025.
We combine traditional methods with an original network analysis to investigate the spatiotemporal expression patterns of candidate genes across the female guppy brain. We found consistent differences in the expression of these genes triggered by mating stimuli, and used mathematical models to further understand how mating behavior is coordinated in ...
Amaury Bittar, Catalina Botia, Santiago Martínez, Daniela Bernal, Nicolas Aparicio, Luis Felipe Giraldo, Verónica Akle, Natasha I. Bloch   +7 more
wiley   +1 more source

Almost billfish: convergent longirostry, micro‐dentition, and possible glandular sinuses in a large teleost fish from the Upper Cretaceous of Northern Italy

Journal of Anatomy, Volume 247, Issue 6, Page 1109-1130, December 2025.
A fossil rostrum fragment of a large teleost fish from the Upper Cretaceous of Northern Italy reveals remarkable anatomical convergences with Cenozoic and Recent billfishes (marlins, swordfishes, and akin). The extinct group Plethodidae independently acquired a long snout, micro‐teeth, and oil‐gland sinuses well before the evolution of true billfishes.
Giovanni Serafini, Jürgen Kriwet, Tommaso Toldo, Eliana Fornaciari, Jacopo Amalfitano, Giorgio Carnevale   +5 more
wiley   +1 more source

A new species of cyprinoid fish from the Tana River, Kenya (Actinopterygii: Danionidae)

Zootaxa, 2019
Sampling of streams in the middle reaches of the Tana River Basin in Meru National Park, Kenya, from 2010 to 2012 for an NSF-funded International Research Experiences for Students (IRES) project, resulted in the capture of a number of specimens of what were first thought to be Neobola fluviatilis.  On closer examination the specimens were determined to
Henry L Jr, Bart, Ray C, Schmidt, Wanja Dorothy, Nyingi, Joseph, Gathua   +3 more
openaire   +3 more sources

>b<Exploring ecomorphological patterns and the evolution of shape in Stomiiformes (Actinopterygii: Teleostei)>/b<: a study of deep-sea fish adaptations [PDF]

, 2023
Amanda Alves Gomes
openalex   +1 more source