Results 61 to 70 of about 800 (196)

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

Influence of Photoperiod on Productive Gains and Immune Resistance During the Larval Stage of the Neotropical Fish Trachelyopterus galeatus (Linnaeus, 1766)

Aquaculture Research, Volume 2025, Issue 1, 2025.
This study evaluated the effect of photoperiod as a productive strategy during the larviculture of the neotropical species Trachelyopterus galeatus. A total of 560 postlarvae, with an average total length and weight of 6.61 ± 0.33 mm and 2.36 ± 0.10 mg, respectively, were randomly assigned to seven photoperiod treatments, each four replicates: (0L:24D)
Yllana Ferreira Marinho, Suéllem dos Remédios Pinheiro, Ithallo Ribeiro Ferreira, Wildysson Borel Barros, Lucas Eduardo Marinho Mendes, Fabiano de Araujo França, Igor Roberlando Alves dos Santos, Yuri Vinicius de Andrade Lopes, Adilson Matheus Borges Machado, Joel Artur Rodrigues Dias   +9 more
wiley   +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

Geophagus tiraparae Gonzalez-Bergonzoni, Loureiro & Oviedo 2009

, 2014
G. tiraparae González-Bergonzoni, Loureiro & Oviedo, 2009 T type locality Tacuarembó, Pueblo Ansina, río Tacuarembó at Road ...
Litz, Thomas O., The, Stefan Koerber Introduction   +1 more
openaire   +2 more sources

Length‒Weight and Length‒Length Relationships of Freshwater Fish Species Caught by Professional Fishermen in the Itaipu Reservoir, Brazil

Journal of Applied Ichthyology, Volume 2025, Issue 1, 2025.
Length‒weight relationships (LWRs) and length‒length relationships (LLRs) were estimated for 63 and 58 freshwater fish species, respectively, captured in the Itaipu Reservoir, Paraná River Basin, Paraná State, Brazil. Sampling was carried out from March 1987 to July 2024 at 63 professional fishing sites within the reservoir’s area of influence ...
Éder André Gubiani, Luiz Guilherme dos Santos Ribas, Anderson Luís Maciel, Geuza Cantanhêde, Laís Thayse Meier, Pitágoras Augusto Piana, Caroline Henn, Yintao Jia   +7 more
wiley   +1 more source

Two new species of cichlid fish genus Geophagus Heckel from the Rio Tocantins drainage (Perciformes: Cichlidae)

, 2010
Lucinda, Paulo H. F., Lucena, Carlos A. S., Assis, Newton C. (2010): Two new species of cichlid fish genus Geophagus Heckel from the Rio Tocantins drainage (Perciformes: Cichlidae).
Assis, Newton C., Lucinda, Paulo H. F., Lucena, Carlos A. S.   +2 more
core   +1 more source

MORTALIDADE, SOBREVIVÊNCIA E LONGEVIDADE DE Geophagus brasiliensis (Quoy & Gaimard, 1824) NO AÇUDE ÁGUAS BELAS (VIAMÃO, RS, BRASIL) (TELEOSTEI, CICHLIDAE)

Pesquisa Agropecuária Gaúcha, 2001
O estudo da mortalidade de Geophagus brasiliensis (Quoy & Gaimard, 1824) no açude Águas Belas, município de Viamão, RS foi baseado em coletas quinzenais realizadas entre setembro/ 1995 e agosto/1996, com o emprego de rede de arrasto de praia (picaré) e ...
GIL ORTIZ SANTOS
doaj  

Fishy Business—Assessing the Efficacy of Active and Passive eDNA to Describe the Fish Assemblage of a River in Southwestern Western Australia to Support Effective Monitoring

Environmental DNA, Volume 6, Issue 6, November–December 2024.
This study compared three fish sampling methods: traditional fyke netting, and active and passive environmental DNA sampling along a 30 km stretch of the Canning River in Western Australia. The effectiveness of the three different methods of detecting fish was tested with a hierarchical multispecies abundance model fit, with the model used to estimate ...
Emma R. Stevens, Josephine Hyde, Leah S. Beesley, Daniel C. Gwinn, Suzanne Thompson, Lenore Morris, Paige R. Wilson, Deirdre B. Gleeson   +7 more
wiley   +1 more source

Fig. 3 in Temperature affects the hypoxia tolerance of neotropical Cichlid Geophagus brasiliensis

, 2018
Fig. 3. Citrate Synthase enzyme activity of Geophagus brasiliensis exposed to normoxic (90% oxygen saturation) and hypoxic (20% oxygen saturation) conditions for 8 hours at 20°C, 24°C and 28°C. a. in liver; b. in white muscle; and c. in heart.
Duca, Charles, Pereira, Jéssica A., Coppo, Gabriel C., Veronez, Alexandra C.S., Gomes, Levy C., Chippari-Gomes, Adriana R.   +5 more
core   +1 more source

Sphincterodiplostomum musculosum (Digenea, Diplostomidae) in Geophagus brasiliensis (Perciformes, Cichlidae) collected in a lake at Dois Córregos, São Paulo, Brazil

Ciência Rural, 2015
: Geophagus brasiliensis is a freshwater cichlid distributed throughout the whole South America. It is a territorial fish, generally omnivorous, which preferentially inhabits the bottom of water bodies.
Rodrigo Severiano Rocha, Larissa Sbeghen Pelegrini, Aline de Almeida Camargo, Vanessa Doro Abdallah, Rodney Kozlowiski de Azevedo   +4 more
doaj   +1 more source