Results 31 to 40 of about 4,488 (220)

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

Journal of Fish Biology, EarlyView.
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert, João C. Maicrovicz, Daniel R. Blanco, Denise Lange, Carla S. Pavanelli, Heleno Brandão   +5 more
wiley   +1 more source

Four new species of Cichlidogyrus (Platyhelminthes, Monopisthocotyla, Dactylogyridae) from Lake Victoria haplochromine cichlid fishes, with the redescription of C. bifurcatus and C. longipenis

Parasite
African cichlids are model systems for evolutionary studies and host-parasite interactions, because of their adaptive radiations and because they harbour many species of monogenean parasites with high host-specificity.
Gobbin Tiziana P., Vanhove Maarten P.M., Seehausen Ole, Maan Martine E., Pariselle Antoine   +4 more
doaj   +1 more source

A new endemic pearl cichlid of the ‘Geophagus’ brasiliensis (Cichliformes: Cichlidae) species group from the Piranga River, upper Doce River basin, southeastern Brazil

Journal of Fish Biology, EarlyView.
Abstract A new species of pearl cichlid of the ‘Geophagus’ brasiliensis species group, endemic to the Piranga River, a major tributary of the upper Doce River basin in the state of Minas Gerais, southeastern Brazil, is herein described. The new species is delimited using an integrative approach, with molecular‐based species delimitation methods coupled
Cidimar E. de Assis, Jorge A. Dergam, Amanda F. Cunha, Valéria N. Machado, Tomas Hrbek, Natállia M. de F. Vicente, Victor de Queiroz, Elisabeth Henschel   +7 more
wiley   +1 more source

Assessment of Fish Biodiversity in Oni River, Ogun State, Nigeria [PDF]

International Journal of Agricultural Management and Development, 2011
For the purpose of sustainable exploitation of the fishery resourcesof Oni River, Ogun State, Nigeria, the fish biodiversity assessment was carried out. This was conducted by enumerating and identifying fish species composition, measuring the fish length,
Obe Bernardine Wuraola, Jenyo-Oni Adetola   +1 more
doaj  

Water Parameters and Hydrodynamics in Rivers and Caves Hosting Astyanax mexicanus Populations Reveal Macro‐, Meso‐ and Microhabitat Characteristics

Ecology and Evolution, Volume 16, Issue 1, January 2026.
From 2009 to 2025, we have recorded the physicochemical parameters of the water and the hydrological regimes at localities hosting Astyanax mexicanus cavefish and surface fish populations in Mexico. Sampling 13 caves and 30 surface stations revealed strong signatures of the two macrohabitats, but also significant differences in specific water ...
Laurent Legendre, Stéphane Père, François Rebaudo, Luis Espinasa, Joël Attia, Sylvie Rétaux   +5 more
wiley   +1 more source

Feeding and trophic ecomorphology of Satanoperca pappaterra (Pisces, Cichlidae) in the Manso Reservoir, Mato Grosso State, Brazil

Brazilian Archives of Biology and Technology, 2005
The aim of this work was to evaluate the relationship between diet and features of the trophic ecomorphology of Satanoperca pappaterra (Heckel, 1840) in an impacted environment.
Norma Segatti Hahn, Fabiane Cunha
doaj   +1 more source

Trace metal distribution in tissues of cichlids (Oreochromis niloticus and O. mossambicus) collected from wastewater-fed fishponds in East Calcutta Wetlands, a Ramsar site [PDF]

Acta Ichthyologica et Piscatoria, 2006
Background. Metals discharged in wastes from different industries into wetland ecosystems pose a serious threat to the receiving environment. Biotic components grown in the area amass such metals within their body through nutritional uptake and ...
S. Chatterjee, B. Chattopadhyay, S.K. Mukhopadhyay   +2 more
doaj   +3 more sources

Water Added Probiotics Attenuates Sumithion‐Induced Toxicity on Growth, Intestinal Deformities, Erythrocytic Abnormalities, and Immunity in Nile Tilapia (Oreochromis niloticus)

Aquaculture Nutrition, Volume 2026, Issue 1, 2026.
Probiotics are important microflora that help in improving gut health, enhancing immunity, and boosting overall well‐being. Sumithion (O, O‐Dimethyl O‐(3‐methyl 4‐nitrophenyl) phosphorothioate) is an organophosphate insecticide widely used in agriculture and aquaculture, has harmful effects in aquatic organisms due to its indiscriminate use. Therefore,
Atika Anjum, Taslima Parvin, Shaila Sultana, Azmaien Naziat, Zannatul Ferdous, Md. Mahiuddin Zahangir, Md Shahjahan, Mohammed El Basuini   +7 more
wiley   +1 more source

DNA methylation in fish of the cichlid family: A systematic review

Heliyon
Cichlidae is considered one of the most diverse families of freshwater fish in the world. The representatives of this group are known for their ecological and behavioral diversity.
Elias Welengane, Luan Felipe da Silva Frade, Luana Beatriz Sales Pinon, Carlos Eduardo Vasconcelos dos Santos, Adauto Lima Cardoso, Luís Adriano Santos do Nascimento, Renata Coelho Rodrigues Noronha   +6 more
doaj   +1 more source

Notes on the occurrence of Trypanosoma sp. (Kinetoplastida: Trypanosomatidae) in freshwater fishes from South Africa

Onderstepoort Journal of Veterinary Research, 2013
A total of 257 fishes from four families, Clariidae, Cichlidae, Cyprinidae and Schilbeidae were collected from three localities: the Sand River Dam, Swaziland; the Nylsvlei Nature Reserve, South Africa and the Vaal Dam and Vaal River Barrage, South ...
Maryke L. Ferreira, Annemariè Avenant-Oldewage   +1 more
doaj   +1 more source