Results 51 to 60 of about 27,661 (173)

Methylation pattern polymorphism of cyp19a in Nile tilapia and hybrids

Open Life Sciences, 2018
Skewed sex development is prevalent in fish hybrids. However, the histological observation and molecular mechanisms remain elusive. In this study, we showed that the interspecific hybrids of the two fish species, Oreochromis niloticus and Oreochromis ...
Chen Xiaowu, Zhao Yonghua, He Yudong, Zhao Jinliang   +3 more
doaj   +1 more source

The Disease Burden in Fish Farm Management: An Integrative View and a Specific Vision in Europe

Reviews in Aquaculture, Volume 17, Issue 4, September 2025.
ABSTRACT In aquaculture, the interactions and balance—or imbalance—between the fish, the rearing environment, pathogens, and farm management determine the occurrence and impact of clinical diseases. The global assessment of the factors related to disease impact is commonly referred to as disease burden.
Francesc Padros, Hamish Rodger, Maria Constenla, Ana Herrero, Maurice Glucksman, Alberto Allepuz, Carlos Zarza   +6 more
wiley   +1 more source

Beyond the Binary: Controlling Natural Sex‐Change in Hermaphroditic Fishes

Reviews in Aquaculture, Volume 17, Issue 4, September 2025.
ABSTRACT Sex‐change in hermaphroditic fishes is a complex but natural biological phenomenon that has significant implications for aquaculture fingerling production, selective breeding, and grow‐out. Understanding the physiological, endocrinological, and molecular pathways underlying hermaphroditism in fishes offers unique opportunities to manipulate ...
Roni Chandra Mondal, Jarrod L. Guppy, Maria A. Villacis‐Escobar, Dean R. Jerry   +3 more
wiley   +1 more source

Level of Heavy Metals in Fish and Associated Human Health Risk From the Omo Delta in Southern Ethiopia: A First-Hand Report

Environmental Health Insights
This study was the first to investigate the levels of heavy metals in commercially important fish species ( Lates niloticus and Oreochromis niloticus ) and the human health risk in Southern Ethiopia.
Abiy Andemo kotacho, Girma Tilahun Yimer, Solomon Sorsa Sota, Yohannes Seifu Berego   +3 more
doaj   +1 more source

Importance of proteins and mitochondrial changes as freshness indicators in fish muscle post‐mortem

Journal of the Science of Food and Agriculture, Volume 105, Issue 10, Page 5163-5172, 15 August 2025.
Abstract Evaluating protein and mitochondrial alterations post‐mortem can contribute to determining correlations between fish‐processing parameters and ultimate fish muscle quality. The myofibrillar protein alteration during rigor mortis directly affects the texture of fish muscle.
Nima Hematyar, Tomas Policar, Turid Rustad   +2 more
wiley   +1 more source

Nutrient Film Technique (NFT) Aquaponics Enhances the Productivity of Fish and Crops: Trials on Nile Tilapia, African Catfish, Lettuce, Spinach and Basil

Aquaculture, Fish and Fisheries, Volume 5, Issue 4, August 2025.
ABSTRACT This study investigated the efficiency of nutrient film technique (NFT) aquaponic systems in enhancing the productivity of Nile tilapia (Oreochromis niloticus), African catfish (Clarias gariepinus), and leafy vegetables (lettuce, spinach and basil) under aquaponic conditions.
Nicholas Outa, Erick Ogello, George K'Otuto   +2 more
wiley   +1 more source

Bacterial Quality and Molecular Detection of Food Poisoning Virulence Genes Isolated from Nasser Lake Fish, Aswan, Egypt

International Journal of Food Science
The microbial analysis of fish is critical for ensuring overall health. Uncooked fish can serve as a conduit for transmitting several types of microbes; the current investigation sought to assess the bacterial levels in various kinds of fish from Nasser ...
Nady Khairy Elbarbary, Mohamed K. Dandrawy, Ghada Hadad, Maha Abdelhaseib, Amna A. A. Osman, Rawaf Alenazy, Ibrahim Elbagory, Neveen M. Abdelmotilib, Fagelnour Elnoamany, Ghada A. Ibrahim, Reda A. Gomaa   +10 more
doaj   +1 more source

Nile Tilapia (Oreochromis niloticus L.) Cage Aquaculture in Africa: Potential Threats to Congeneric Fish Species and Advances to Detect Escapes

Aquaculture, Fish and Fisheries, Volume 5, Issue 4, August 2025.
ABSTRACT Cage fish farming, a recent development in aquaculture, has enhanced fisheries production due to its higher stocking densities than traditional pond and open‐water systems. Although it can enhance production, the system can pose biodiversity threats when there is an unintentional or intentional release of stocked fish into the wild.
Gerald Kwikiriza, Mavindu Muthoka, Timothy Omara, Ivan Abaho, Papius Dias Tibihika, Manuel Curto, Mary A. Opiyo, Jonathan Munguti, Jacob Abwao, Paul Orina, Harald Meimberg   +10 more
wiley   +1 more source

Unbundling Fish Kills Associated Losses and Compliance Aspects in Lacustrine Cage Aquaculture Farms

Aquaculture, Fish and Fisheries, Volume 5, Issue 4, August 2025.
ABSTRACT Cage fish farming has emerged as a key component of aquaculture in Lake Victoria, Kenya, providing critical contributions to food security, employment and local livelihoods. Despite its growth, the sector faces recurring challenges—including inadequate regulatory compliance, poor environmental management and frequent mass fish kills that ...
Christopher Mulanda Aura, Hezron Awandu, Venny Mziri, Fonda Jane Awuor, Chrispine S. Nyamweya, Safina Musa, Melckzedeck Osore   +6 more
wiley   +1 more source

Improving Whole Biodiversity Monitoring and Discovery With Environmental DNA Metagenomics

Molecular Ecology Resources, Volume 25, Issue 6, August 2025.
ABSTRACT Environmental DNA (eDNA) metagenomics sequences all DNA molecules present in environmental samples and has the potential of identifying virtually any organism from which they are derived. However, due to unacceptable levels of false positives and negatives, this approach is underexplored as a tool for biodiversity monitoring across the tree of
Manuel Curto, Ana Veríssimo, Giulia Riccioni, Carlos D. Santos, Filipe Ribeiro, Sissel Jentoft, Maria Judite Alves, Hugo F. Gante   +7 more
wiley   +1 more source