Results 61 to 70 of about 1,346 (161)

Lesões histopatológicas em fígado de Prochilodus lineatus (Pisces, Prochilodontidae) exposto à concetração subletal do inseticida organofosforado Dipterex 500® (Trichlorfon)

open access: yesActa Scientiarum: Biological Sciences, 2008
Neste trabalho foram avaliadas as alterações histopatológicas de fígados de juvenis de curimbatá, Prochilodus lineatus (Valenciennes, 1836) expostos a uma concentração de 0,2 µl/L do organofosforado Dipterex 500 (Trichlorfon).
Edson de Lara Rodrigues   +3 more
doaj   +1 more source

Low‐Effort eDNA Sampling Reveals Fish Community Patterns in a Neotropical River Basin

open access: yesEnvironmental DNA, Volume 7, Issue 4, July–August 2025.
Low eDNA sampling effort (< 10 sample sites) using a portable on‐site kit with syringe filters and a modest water volume (< 500 mL per site) provided a rapid and robust snapshot of fish biodiversity. Environmental DNA based species richness increases along the upstream‐downstream gradient showing a significant negative correlation with river elevation ...
Daniel Cardoso Carvalho   +4 more
wiley   +1 more source

A New Species of Kritskyia (Dactylogyridae, Ancyrocephalinae) Parasite of Urinary Bladder of Prochilodus lineatus (Prochilodontidae, Characiformes) from the Floodplain of the High Paraná River, Brazil

open access: yesMemorias do Instituto Oswaldo Cruz, 2002
A new species of Kritskyia inhabits the urinary bladder of the "curimba", Prochilodus lineatus in the floodplain of the high Paraná river. The new species resembles others members of Kritskyia in the following features: haptor lacking anchors and with 14
Ricardo M Takemoto   +2 more
doaj   +1 more source

Thiacloprid Exposure Induces Oxidative Stress, Endoplasmic Reticulum Stress, and Apoptosis in the Liver of Mauremys reevesii

open access: yesEcology and Evolution, Volume 15, Issue 2, February 2025.
Thiacloprid (THI), widely used for crop protection and pest control, is easily residual and accumulated in the environment because of long half‐life and high leaching effect. The detectable rate of THI in soil and water is high, which can lead to the accumulation in organisms and cause toxic effects through sustained exposure to humans and nontargeted ...
Shuqin Lin   +6 more
wiley   +1 more source

Impacts of Global Warming on Quality of Male Fishes: Evidence From A Meta‐Analysis of Temperature Effects on Sperm Motility Kinematics

open access: yesReviews in Aquaculture, Volume 17, Issue 1, January 2025.
ABSTRACT Studies have demonstrated adverse effects of global warming on aquatic ecosystems. However, the effects of increased water temperature (IWT) on fish reproduction are still doubtful in species spawning at low or high temperatures. In this meta‐analysis, we elucidated the effects of global warming on spermatozoa functions, key determinants of ...
Yu Cheng   +8 more
wiley   +1 more source

Synapsis in supernumerary chromosomes of Prochilodus lineatus (Teleostei: Prochilodontidae) [PDF]

open access: yes, 1998
Meiotic analysis performed on a sample of 10 specimens of Prochilodus lineatus revealed continuous filaments of different sizes stained by AgNO3, corresponding to the bivalent of the normal complement.
Foresti, Fausto [UNESP]   +4 more
core   +1 more source

Structural Analysis of Embryonic Development of Embryos From the Crossing of Two Species of Siluriform

open access: yesAquaculture Research, Volume 2025, Issue 1, 2025.
Based on the need for knowledge about the biology of hybrid fish specimens currently being produced by commercial fish farmers, this study aimed to study the initial ontogenesis up to the fifth day after larval hatching of the Hybrid LP produced by crossing Leiarius marmoratus (♀) and Pseudoplatystoma reticulatum (♂), thus producing important data for ...
Yasmin Santos dos Reis   +7 more
wiley   +1 more source

Sperm Quality, Milt Biochemistry, and Cellular Ultrastructure in Fresh and Cryopreserved Sperm of Brycon amazonicus

open access: yesAquaculture Research, Volume 2025, Issue 1, 2025.
Milt cryopreservation facilitates native fish’s constant production of commercial interest. However, it can damage spermatozoa (sptz) due to the osmotic stress of diluents and low temperatures. This study compares spermatic quality in fresh (SF) and cryopreserved (CS) milt in B. amazonicus for 24 h, 1 month, and 3 months.
Owens José Barros-Barrios   +4 more
wiley   +1 more source

Evaluation of techniques of semen conservation of Prochilodus vimboides e Prochilodus lineatus

open access: yes, 2015
O objetivo deste trabalho foi desenvolver metodologia de conservação de sêmen de Prochilodus vimboides e Prochilodus lineatus, da bacia do rio Paraíba do Sul, a curto e a longo prazo. Os experimentos foram realizados na estação de piscicultura do Projeto
Oliveira, Alexmiliano Vogel de
core  

B-chromosome frequency stability in Prochilodus lineatus (Characiformes, Prochilodontidae)

open access: yes, 2010
The genus Prochilodus includes individuals ranging in size from medium to large, being highly relevant for commercial and subsistence fishing.
Porto-Foresti, Fábio [UNESP]   +10 more
core   +1 more source

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