Results 41 to 50 of about 687 (86)

Capillariosis in breeder discus (Symphysodon aequifasciatus) in Iran [PDF]

Journal of Agricultural Sciences (Belgrade), 2010
The global ornamental fish trade is a rapidly growing industry. Cultivation and propagation of ornamental fishes have been increasing in the last 20 years in Iran.
Rahmati-Holasoo Hooman, Mousavi Ebrahimzadeh Ali Hossein, Soltani Mehdi, Hosseini Seyedhossein, Ghadam Masoomeh, Samani Reza   +5 more
doaj   +1 more source

A Global Account of Established Non‐Native Fish Species

Global Change Biology, Volume 31, Issue 8, August 2025.
This study compiles the most complete global database of non‐native fish species that have successfully established themselves in new freshwater and marine environments. It documents 1535 species across 193 countries, identifies their main introduction routes—such as aquarium trade, aquaculture, and artificial waterways—and highlights that many ...
Phillip J. Haubrock, Mariana Novello, Neil Angelo Abreo, Dagmara Błońska, Ana Clara Sampaio Franco, Ismael Soto, Giuseppe Castaldelli, Stelios Katsanevakis, Antonín Kouba, Paride Balzani, Irmak Kurtul, Ali Serhan Tarkan, Elizabeta Briski, Robert Britton   +13 more
wiley   +1 more source

A new species of Gymnogeophagus from the río Negro and río Tacuarí basins, Uruguay (Teleostei: Perciformes)

Neotropical Ichthyology
The new cichlid species Gymnogeophagus tiraparae is described from the río Negro and río Tacuarí basins (Uruguay). The new species is distinguished from other Gymnogeophagus species by the unique presence of the following characters: adipose hump on head
Iván González-Bergonzoni, Marcelo Loureiro, Sebastián Oviedo   +2 more
doaj   +1 more source

Fish otoliths from the middle Miocene Pebas Formation of the Peruvian Amazon

Swiss Journal of Palaeontology, 2022
A small assemblage of 22 otoliths was identified from the historical collection of Bluntschli and Peyer gathered in 1912 on the Itaya riverbank at Iquitos, Peru (Amazonia), from the Pebas Formation.
Werner W. Schwarzhans, Orangel A. Aguilera, Torsten M. Scheyer, Jorge D. Carrillo-Briceño   +3 more
doaj   +1 more source

Persisting at the Edge of Ecological Collapse: The Impact of Urbanization on Fish and Amphibian Communities From Lake Xochimilco

Environmental DNA, Volume 7, Issue 4, July–August 2025.
ABSTRACT Freshwater ecosystems are globally threatened by habitat loss, pollution, and invasive species, all of which are particularly acute in urban areas. To assess the impacts of urbanization on freshwater biodiversity—specifically the effects of alien species on native primary aquatic vertebrates—we investigated the World Heritage Site, Lake ...
Alejandro Maeda‐Obregon, Elizabeth L. Clare, Luis Zambrano, Omar Domínguez‐Domínguez, Gavin J. Horsbrough, Paul Parsons, Deborah A. Dawson, Benjamin Tapley, Christopher J. Michaels, Víctor H. Reynoso, Jeffrey W. Streicher, David J. Murrell, Julia J. Day   +12 more
wiley   +1 more source

Illuminating the Dark: Using eDNA Metabarcoding to Study the Unique Ichthyofauna of the Furnas Formation Sinkholes

Environmental DNA, Volume 7, Issue 4, July–August 2025.
Using eDNA metabarcoding, we assessed fish diversity in isolated sinkholes in southern Brazil, uncovering signs of local extinction and species persistence. This approach offers a non‐invasive tool for biodiversity assessment and informs conservation efforts in unique karst environments.
Luz E. De la Ossa‐Guerra, Daniel M. Limeira, Roger H. Dalcin, Heron O. Hilário, Daniel C. Carvalho, Roberto F. Artoni   +5 more
wiley   +1 more source

Biologia reprodutiva de Heros efasciatus Heckel, 1840 (Pisces, Cichlidae) na Reserva de Desenvolvimento Sustentável Amanã-AM, visando seu manejo sustentável Reproductive biology of Heros efasciatus Heckel,1840 (Pisces, Cichlidae) in the Amanã Sustainable Reserve (Amazonas, Brazil), aiming at sustainable management of the species

Acta Amazonica, 2010
Com o principal objetivo de fornecer ferramentas para auxiliar na implementação do manejo sustentável de peixes ornamentais na Reserva de Desenvolvimento Sustentável Amanã, Amazonas, foi realizado o estudo da biologia reprodutiva de Heros efasciatus ...
Jana Menegassi del Favero, Paulo dos Santos Pompeu, Ana Carolina Prado-Valladares   +2 more
doaj   +1 more source

Spatiotemporal eDNA Monitoring of Marine Biodiversity in a Hyperurbanised Coastal Environment

Environmental DNA, Volume 7, Issue 4, July–August 2025.
Using environmental DNA and a metabarcoding approach, we amplified and sequenced the cytochrome oxidase subunit I (COI) gene for invertebrates and the 16S rRNA gene for vertebrates. Our spatiotemporal analyses over a year and across four sites in Singapore revealed distinct communities between sites and timepoints for both the COI and 16S rRNA assays ...
Zhi Ting Yip, Zheng Bin Randolph Quek, Danwei Huang   +2 more
wiley   +1 more source

Hydrodynamic Responses of Fish Community Dynamics in Large‐Scale Morphologically Complex River Systems

Water Resources Research, Volume 61, Issue 7, July 2025.
Abstract Large rivers exhibit dynamic and complex geomorphic features, supporting some of the most biodiverse and ecologically productive ecosystems. However, their aquatic ecology is increasingly threatened by human modifications to natural channel morphology.
Jiajian Qiu, Saiyu Yuan, Hongwu Tang, Yilin Deng, Carlo Gualtieri   +4 more
wiley   +1 more source

Fish distribution across altitudinal gradients in the Upper Paraguay River Basin: Implications for conservation in the Pantanal region

Conservation Science and Practice, Volume 7, Issue 7, July 2025.
This paper approaches the patterns in fish distribution across the altitudinal gradient in the Upper Paraguay River basin, from uplands to the floodplain. We compiled more than 75,000 available fish records and registered 342 fish species and your distribution along altitudinal gradient. Floodplain portion have higher species diversity than headwaters,
Adriana Maria Espinoza Fernando, Francisco Severo‐Neto, Fabiane Silva Ferreira, Lúcia Mateus, Karina K. Tondato‐Carvalho, Elaine Antoniassi Luiz Kashiwaqui, Heriberto Gimenes Junior, Wladimir M. Domingues, Carla Simone Pavanelli, Henrique Ledo Lopes Pinho, Jerry Penha, Yzel Rondon Súarez   +11 more
wiley   +1 more source