Results 41 to 50 of about 4,731 (218)

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

Rediscovery of Crenicichla yaha (Teleostei: Cichlidae). [PDF]

, 2017
Fil: Almirón, Adriana Edith. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo.
Říčan, Oldřich, Almirón, Adriana Edith, Casciotta, Jorge Rafael   +2 more
openaire   +2 more sources

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

Histological Characterization and Oocyte Development in Pearlspot, Etroplus suratensis (Bloch, 1790) From Vembanad Lake, Kerala, India

Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
ABSTRACT This study is the first to elucidate the oocyte growth pattern of Etroplus suratensis through detailed gonad histology. Ovary samples from different maturity stages were collected from October 2023 to September 2024 from cage culture systems installed in Vembanad Lake, Kumbalangi, Kerala, India.
Mohammad Saddam Hussain, Mahadevan Harikrishnan, Dinesh Yadav, Betsee Thomas, Keerthana PV, Nikhila Khanna AR, Haritha Haridas, Mohamad Husneid Azad, Akhil Soman   +8 more
wiley   +1 more source

Global Patterns and Gaps in Research on Salinity Tolerance of Inland Fishes

Fish and Fisheries, Volume 27, Issue 2, Page 400-411, March 2026.
ABSTRACT Freshwater salinization is an emerging threat impacting approximately one‐third of the world's freshwater bodies. However, the salinity tolerance of many inland fishes remains understudied, despite being a crucial factor in determining species distributions and fitness.
Carlos Cano‐Barbacil, Ignacio Doadrio, Julian D. Olden, Kirk. O. Winemiller, Emili García‐Berthou   +4 more
wiley   +1 more source

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

ANEMONE Global's First eDNA‐Based Assessment: Insights Toward a Standardized Global Monitoring Network

Environmental DNA, Volume 8, Issue 1, January–February 2026.
Using a standardized eDNA metabarcoding workflow across 12 countries, ANEMONE Global reveals large‐scale patterns in coastal fish biodiversity shaped by habitat complexity, ocean basin, and diel variation. The study demonstrates the feasibility of globally coordinated, high‐resolution marine biodiversity monitoring using eDNA.
Imane Sioud, Yuki Minegishi, Tadashi Kajita, Yukinobu Isowa, Akifumi S. Tanabe, Hisashi Yamakawa, Oliver Berry, Mohammad Basyuni, Hong Leong Cheah, Bruce Deagle, Jean Fall, Kazi Ashan Habib, Shalika Kumbregama, Wanlada Klangnurak, Venus E. Leopardas, Ndeye Codou Mbaye, Nasreen Peer, Kannan Sivakumar, Itchika Sivaipram, Ulla Von Ammon, Alison Wee, Sau Pinn Woo, Michio Kondoh   +22 more
wiley   +1 more source

Potential mechanism of sound production in Oreochromis niloticus(Cichlidae) [PDF]

Journal of Experimental Biology, 2009
SUMMARY Although acoustic communication is an integral part of cichlid behaviour,its mechanism has never been identified before. In the present study, a combination of approaches was used to investigate the sound-producing mechanism of Oreochromis niloticus. Synchronisation of high-speed video data (500 frames s–1) and cineradiographies (
Nicolas, Longrie, Sam, Van Wassenbergh, Pierre, Vandewalle, Quentin, Mauguit, Eric, Parmentier   +4 more
openaire   +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

Taxonomy, Distribution and Ecology, Biology, Nutritional Composition, and Conservation Status of Critically Endangered Lake Chala Tilapia Oreochromis hunteri (Günther, 1889): Implications for Aquaculture Development

Aquaculture Research, Volume 2026, Issue 1, 2026.
Oreochromis hunteri Günther, 1889, commonly known as Lake Chala tilapia, is an endemic cichlid restricted to the small crater lake, Lake Chala, on the border of Kenya and Tanzania. This review synthesizes existing knowledge on the taxonomy, and phylogenetic placement, distribution and ecology, and biology including nutritional composition, and ...
Jonathan Munguti, Mavindu Muthoka, Domitila Kyule, Esther Magondu, Jacob O. Iteba, Kevin Obiero, Paul Orina, Menaga Meenakshisundaram, Tanga M. Chrysantus   +8 more
wiley   +1 more source