Results 151 to 160 of about 19,555 (242)

Flavobacterium oreochromis From Farmed Tambaqui (Colossoma macropomum): Insights Into Genetic, Phenotypic and Pathogenic Diversity

Journal of Fish Diseases, EarlyView.
ABSTRACT Flavobacterium spp. are the etiological agents of columnaris disease. Although there is evidence that columnaris poses a significant threat to the farming of tambaqui (Colossoma macropomum), there remains a large gap in understanding the genetic and phenotypic diversities of columnaris‐causing bacteria (CCB).
Elcimara Cardoso Pereira, Mariluce dos Reis Ferreira, Suzana Kotzent, Luiz Fagner Ferreira Nogueira, Guilherme Campos Tavares, Henrique César Pereira Figueiredo, Fabiana Pilarski, Gustavo Moraes Ramos Valladão, Sílvia Umeda Gallani   +8 more
wiley   +1 more source

The complete mitochondrial genome of the threatened Neotropical catfish Lophiosilurus alexandri (Silurifomes: Pseudopimelodidae) and phylogenomic analysis indicate monophyly of Pimelodoidea

Genetics and Molecular Biology
Lophiosilurus alexandri is an endemic catfish from the São Francisco River Basin (Brazil) popularly known as pacamã, which has economic potential for aquaculture farming.
Daniel Cardoso Carvalho, Violeta da Rocha Perini, Alex Schomaker Bastos, Igor Rodrigues da Costa, Ronald Kennedy Luz, Carolina Furtado, Francisco Prosdocimi   +6 more
doaj   +1 more source

The status of Brycon labiatus STEINDACHNER 1880 (Pisces, Characoidei) and its synonym, Othonophanes labiatus (STEINDACHNER 1880)

, 1983
In the description and assignment of the name to Brycon labiatus, later called Othonophanes labiatus, the typical distinguishing characteristic was reported to be a dermal enlargement of characteristic form in the mid-dental region (Fig. 1, 2). Brycon cf.
Braum, E.
core  

The raphe nuclear organization and serotonergic system in the bat (Artibeus planirostris)

Journal of Anatomy, EarlyView.
Schematic representation of the methodological workflow used to characterize the serotonergic (5‐HT) system in the bat Artibeus planirostris. Serotonin (5‐HT) immunohistochemistry was performed on brainstem sections to identify and map the distribution of serotonergic neurons within the raphe nuclei.
Mariana D. Leite, Andréa S. M. Bandeira, Wigínio G. L. Bandeira, Milena S. Lustosa, Ana C. F. Gama, Marília A. S. Barros, Paulo L. A. G. Morais, Jeferson S. Cavalcante, Melquisedec A. D. Santana, Expedito S. Nascimento Jr   +9 more
wiley   +1 more source

Trophic Redundancy and the Hidden Dietary Overlap Between Native and Invasive Stream Fishes

Ecology of Freshwater Fish, Volume 35, Issue 3, July 2026.
ABSTRACT Biological invasions introduce non‐native species into natural ecosystems, often reshaping localcommunities and altering trophic interactions. In freshwater environments, such invasions can intensify resource use and threaten native fish diversity.
Ronielson Gaia, Ana Carolina Martins‐Pereira, Paulo Ricardo S. Camargo, Virgilio Teixeira Carrijo, Rafael Cunha Bruno, Fagner de Souza, Victor A. Tagliacollo   +6 more
wiley   +1 more source

One species or four? Yes!...and, no. Or, arbitrary assignment of lineages to species obscures the diversification processes of Neotropical fishes. [PDF]

PLoS One, 2017
Willis SC.
europepmc   +1 more source

Analysis of Spontaneous Plant Species in an Urban Green Space in Southern Spain

Plant-Environment Interactions, Volume 7, Issue 3, June 2026.
ABSTRACT This study presents a detailed floristic inventory of the spontaneous flora in La Asomadilla urban park in Córdoba, southern Spain. In addition to being the largest urban park in the city, La Asomadilla is characterized by irregular terrain, a transitional location between the Guadalquivir river plain and Sierra Morena mountains, and the ...
María José Tenor‐Ortiz, Purificación Alcázar, Rafael Tamajón‐Gómez, Carmen Galán   +3 more
wiley   +1 more source

Shifting Seas, Changing Diets: Evidence of Temporal Dietary Shifts in Marine Megafauna in Southern Brazil (2017–2023)

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT Understanding the dietary dynamics of marine megafauna is essential for interpreting ecological interactions and assessing environmental changes in marine ecosystems. We analysed temporal trends in the diets of eight megafaunal species, comprising marine mammals, seabirds, and sea turtles.
Joao Bosco Gusmao, Mario Roberto Castro Meira‐Filho, Camila Domit   +2 more
wiley   +1 more source

Description of Austrocelis gen. nov. (Diptera: Periscelididae), including the description of eight new species and the diversity and abundance of the species in different strata of the Amazon Rainforest

Austral Entomology, Volume 65, Issue 2, May 2026.
Abstract Austrocelis gen. nov. is described based on the following characters: maxillary palpus short and spatulate; setae of the head elongate; face protrudent, with the dorsal portion flattened and oblique, and ventral portion shorter and recessed towards the mouth opening; wing banded, with setae present on dorsal surface of vein R1; surstylus ...
Rosaly Ale‐Rocha, Wayne N. Mathis
wiley   +1 more source

Environmental Contamination Affects Associated Bacterial Communities in a Neotropical Arboreal Ant

Biotropica, Volume 58, Issue 3, May 2026.
Environmental stressors such as contamination from mining tailings can alter microbial communities associated with insects, including social ants. Ants, as widespread and ecologically influential insects with stable microbial associations, offer a relevant model to examine these effects.
Marília R. Bitar, Aristóteles Góes‐Neto, Paulo S. Oliveira, Corrie S. Moreau, Sérvio P. Ribeiro   +4 more
wiley   +1 more source