Results 61 to 70 of about 4,539 (221)

Les Cheirodontinae (Characidae, Ostariophysi) du Paraguay

Revue suisse de zoologie., 1987
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Long‐Term Effects of Land Use and Cover Change and Dam Rupture on Ichthyofauna in a Neotropical Stream

International Review of Hydrobiology, Volume 110, Issue 1, Page 5-12, June 2025.
ABSTRACT This study evaluates land use and land cover (LULC) changes and their impacts on the fish community of a neotropical stream in the Sorocaba River basin, Brazil, from 2006 to 2023. The watershed experienced landscape changes over time, categorized into four periods: rural interventions, urban interventions, restorative interventions, and post ...
Nícholas de P. Nicomedes, Thiago M. R. Santos, Luís G. N. de Carvalho, Beatriz C. G. Prieto, Camila S. Bento, Larissa L. M. Silva, Flavia C. de Paiva, Natalia S. Alves, Welber S. Smith   +8 more
wiley   +1 more source

Nuclear DNA content determination in Characiformes fish (Teleostei, Ostariophysi) from the Neotropical region

Genetics and Molecular Biology, 2002
In the present study, nuclear DNA content was analyzed in 53 species of Characiformes fish from the Neotropical region. Diploid number ranged from 2n = 48 in Astyanax fasciatus, Gymnocorymbus ternetzi and Hyphessobrycon griemi to 2n = 102 in Potamorhina ...
Margarida Lima Carvalho, Claudio Oliveira, Maria Clara Navarrete, Otávio Froehlich, Fausto Foresti   +4 more
doaj   +1 more source

Multiple NORs in Bryconamericus aff. exodon (Osteichthyes, Characidae, Tetragonopterinae) [PDF]

Hereditas, 2002
Fifteen examples of Bryconamericus aff. exodon from the Três Bocas stream in the basin of the Tibagi river (Parana, Brazil) were analyzed. They presented a diploid number of 52 chromosomes. Multiple NORS were detected by silver nitrate impregnation in the telomeric region on the short or long arm of different chromosomes, showing a variation from 2 to ...
Tania Regina, Paintner-Marques, Lucia, Giuliano-Caetano, Ana Lúcia, Dias   +2 more
openaire   +2 more sources

Megalocytivirus: A Review of Epidemiology, Pathogenicity, Immune Evasion, and Prevention Strategies

Reviews in Aquaculture, Volume 17, Issue 3, June 2025.
ABSTRACT Megalocytivirus, a large double‐stranded DNA virus belonging to the Iridoviridae family, has infected over 100 species of fish, leading to significant economic losses in the aquaculture, food, and ornamental fish industries. These viruses exhibit icosahedral symmetry and have diameters ranging from 120 to 200 nm.
Changjun Guo, Jian He, Xiaopeng Xu, Shaoping Weng, Jianguo He   +4 more
wiley   +1 more source

Spatial and temporal variation of the diet of the flag tetra Hyphessobrycon heterorhabdus (Characiformes: Characidae) in streams of the Eastern Amazon [PDF]

, 2020
Naraiana Loureiro Benone, Cleonice Maria Cardoso Lobato, Bruno Eleres Soares, Luciano Fogaça de Assis Montag   +3 more
openalex   +1 more source

Length‐Weight Relationships of Sixteen Fish Species From the Upper Tietê Basin, Southeaster Brazil

Journal of Applied Ichthyology, Volume 2025, Issue 1, 2025.
This study investigated the length‐weight relationship (LWR) of 16 fish species from the Upper Tietê Basin under the influence of the Atlantic Forest biome, aiming to provide updated morphometric data and contribute to the knowledge of Neotropical ichthyofauna. 2811 specimens were collected and distributed across five orders and 10 families.
Luís Gustavo Nogueira de Carvalho, Beatriz Carine Gazzola Prieto, Camila Silva Bento, Dalton Jorge Neief Ganem, Matheus Oliveira Fagaça, Ariane Almeida Vaz, Welber Senteio Smith, Georgii Ruban   +7 more
wiley   +1 more source

Hyphessobrycon ocasoensis sp. n. (Teleostei, Characidae) una nueva especie para el Alto Cauca, Colombia [PDF]

Animal Biodiversity and Conservation, 2008
Hyphessobrycon ocasoensis n. sp. (Teleostei, Characidae) a new species from the Alto Cauca, Colombia Hyphessobrycon ocasoensis n. sp. (Characiformes, Characidae) from heterorhabdus group (Gery, 1977) is described from the upper Cauca River in Colombia.
García-Alzate, C. A., Román-Valencia, C.   +1 more
doaj  

River Geomorphology and Fish Diversity Around the Manseriche Gorge, the Last Andean Crossing Is in Peril

Water Resources Research, Volume 60, Issue 11, November 2024.
Abstract The transition from the Andes to the Amazon lowland hosts a high biodiversity and currently is facing several anthropogenic activities, including hydropower infrastructure projects. Little is known about the geomorphology of the Andean gorges, rivers and the interaction with the fish diversity upstream and downstream of gorges.
J. D. Abad, H. Chicchon, J. Chuctaya, A. Mendoza, H. Valverde, C. Oshiro, M. Montoya   +6 more
wiley   +1 more source

The problems with pin bones: Intermuscular bone development and function in salmonids and their implications for aquaculture

Reviews in Aquaculture, Volume 16, Issue 4, Page 1981-1995, September 2024.
Abstract A healthy skeletal system is fundamental to fish welfare and performance and a key physiological feature of a robust fish. The presence of skeletal deformities in farmed salmonids is a persistent welfare problem in aquaculture, and one which threatens to impede industry growth.
Brianne A. Lyall, P. Eckhard Witten, Chris G. Carter, Matthew R. Perrott, Jane E. Symonds, Seumas P. Walker, Zac Waddington, Gianluca Amoroso   +7 more
wiley   +1 more source