Results 21 to 30 of about 244 (122)

Food resource used by small-sized fish in macrophyte patches in ponds of the upper Paraná river floodplain - DOI: 10.4025/actascibiolsci.v31i2.3266

Acta Scientiarum: Biological Sciences, 2009
This study analyzed the diet of seven small-sized fish species (Characidae) and assessed their use of food resources. The species were collected in 2001 from nine ponds with aquatic macrophytes in the Paraná river floodplain, Brazil. Astyanax altiparanae,
Valdirene Esgarbosa Loureiro Crippa, Norma Segatti Hahn, Rosemara Fugi   +2 more
doaj   +1 more source

Study of the Genetic Diversity of the Ornamental Fish Badis badis (Hamilton‐Buchanan, 1822) in the Terai Region of Sub‐Himalayan West Bengal, India

International Journal of Biodiversity, Volume 2014, Issue 1, 2014., 2014
Dwarf chameleon fish or Badis badis, a lesser known ornamental freshwater fish, has recently been included in the Indian threatened category of fish list. There are insufficient studies with regard to the assessment of genetic background of this ichthyofauna, especially in the western sub‐Himalayan region of West Bengal, India, popularly known as the ...
Tanmay Mukhopadhyay, Soumen Bhattacharjee, Devon Keeney   +2 more
wiley   +1 more source

Effectiveness of estradiol valerate on sex reversion in Astyanax altiparanae (Characiformes, Characidae)

Brazilian Archives of Biology and Technology, 2012
The objective of this study was to evaluate the effectiveness of estradiol valerate in an attempt to feminize the male Astyanax altiparanae. One thousand newly-hatched larvae were randomly distributed in four incubators.
Jaqueline Cristina de Bem, Carmem Silvia Fontanetti, José Augusto Senhorini, Patricia Pasquali Parise-Maltempi   +3 more
doaj   +1 more source

Colonization of the Corumbá Reservoir (Corumbá River, Paraná River Basin, Goiás State, Brazil) by the "lambari" Astyanax altiparanae (Tetragonopterinae; Characidae)

Brazilian Archives of Biology and Technology, 2005
This work aimed to determine which population features were important to the colonization process of Astyanax altiparanae in the Corumbá Reservoir. The species presented wide spatial-temporal distribution, caught in all months and sites.
Rosa Maria Dias, Dayani Bailly, Rosimeire Ribeiro Antônio, Harumi Irene Suzuki, Angelo Antonio Agostinho   +4 more
doaj   +1 more source

Combined Effects of Algae‐Supplemented Feeding Regimes and Water Temperature on Sperm Quality of Common Carp (Cyprinus carpio) Broodstock During Spawning

Aquaculture, Fish and Fisheries, Volume 6, Issue 4, August 2026.
ABSTRACT This exploratory study investigated associations between dietary algae supplementation (1% and 3%) and sperm quality in male common carp (Cyprinus carpio) broodstock during two consecutive spawning seasons under commercial farming conditions. Sperm quality was evaluated using conventional motility and kinetic parameters together with analyses ...
Gergely Bernáth, Borbála Nagy, Enikő Solymosi, Tamás Zsáky, Ákos Koós, Attila Komóczi, Viktor Nagy, Vilmos Pásztor, János Sztanó, János Ladányi, György Lódi, Péter Antal, Tamás Szabó, Tamás Bartucz, Dávid Várkonyi, Zsolt Bajári, István Bartos, Róbert Petényi, Gergely Berecz, Márton Kirchner, Béla Urbányi, Árpád István Harmati, Zoltán Bokor   +22 more
wiley   +1 more source

Evaluation of a novel anti‐mycotoxin agent specific for aquatic species in mitigating aflatoxin B1‐induced changes in Nile tilapia: A comprehensive study

Journal of the World Aquaculture Society, Volume 57, Issue 1, February 2026.
Abstract Aflatoxin B1 (AFB1) contamination of aquaculture feed poses serious health risks to fish and consumers. In this study, the efficacy of a novel anti‐mycotoxin agent specific for aquatic species (AM‐AQ) containing bentonite, sepiolite, and orange peel meal (Citrus Sinensis) in alleviating AFB1 toxicity in Nile tilapia (Oreochromis niloticus) was
Eman Zahran, Samia Elbahnaswy, Fatma Abdelhamid, Shaaban M. Abdel‐Fattah, Ahmed I. A. Mansour, Iman Ibrahim, Fatma Ahmed, Walaa El‐Houseiny, Eva León, Raquel Codina, Óscar Castro, Insaf Riahi, Zeinab Hassan   +12 more
wiley   +1 more source

Cytogenetic and comparative morphology of two allopatric populations of Astyanax altiparanae Garutti & Britski, 2000 (Teleostei: Characidae) from upper rio Paraná basin

Neotropical Ichthyology
The recently described fish species, Astyanax altiparanae (tetra) is common in the upper rio Paraná basin, and has been reported in the Iguaçu basin. However, its natural origin in the rio Iguaçu is questionable.
Manoela de S. Domingues, Marcelo R. Vicari, Vinícius Abilhoa, João P. Wamser, Marta M. Cestari, Luiz A. C. Bertollo, Mara C. de Almeida, Roberto F. Artoni   +7 more
doaj   +1 more source

Molecular and Physiological Insights Into Handling Stress Responses in Hybrid Grouper (Epinephelus fuscoguttatus × Epinephelus lanceolatus)

Aquaculture Research, Volume 2026, Issue 1, 2026.
Handling stress is a significant challenge in intensive aquaculture, often compromising fish welfare, immunity, and overall productivity. This study investigates the skin transcriptomic responses, blood plasma enzyme activities, and histological changes in the liver, spleen, and head kidney of hybrid grouper (Epinephelus fuscoguttatus × E. lanceolatus)
Saleema Matusin, Annie Christianus, Norazrin Ariffin, Annas Salleh, Chen Fei Low, Chou Min Chong, Ina Salwany Md Yasin, Muhammad Hafiz Abu Bakar   +7 more
wiley   +1 more source

The Research Advances in Distant Hybridization and Gynogenesis in Fish

Reviews in Aquaculture, Volume 17, Issue 1, January 2025.
ABSTRACT Distant hybridization and gynogenesis are two prevalent breeding techniques for fishes. Drawing from the research achievements of our team and the existing literature, we summarize the reproductive traits and genetic features of fishes derived from distant hybridizations and gynogenesis, and we deduce the fundamental mechanisms of these two ...
Qizhi Liu, Shi Wang, Chenchen Tang, Min Tao, Chun Zhang, Yi Zhou, Qinbo Qin, Kaikun Luo, Chang Wu, Fangzhou Hu, Yude Wang, Qingfeng Liu, Wuhui Li, Jing Wang, Rurong Zhao, Shaojun Liu   +15 more
wiley   +1 more source

Effects of Dietary Oregano (Origanum vulgare) Essential Oil Supplementation in Hybrid Red Tilapia (Oreochromis spp.) Diet on Growth Performance, Survival, Intestinal Health, Reproductive and Serum Biochemical Indices

Aquaculture Research, Volume 2025, Issue 1, 2025.
Feed additives are fundamental components of aquaculture, modulating growth performance, nutrient utilisation and physiological responses in cultured fish. Phytogenic compounds, particularly plant‐derived essential oils (EOs), are increasingly explored for their functional benefits in fish.
Fredrick Juma Syanya, Zachariy Oreko Winam, A. R. Nikhila Khanna, Harikrishnan Mahadevan, Megha Lovejan, Paul Mumina   +5 more
wiley   +1 more source