Results 51 to 60 of about 10,911 (158)

Detection of Unauthorized Tilapia Species Circulating in Cage Farms on Lake Volta

Aquaculture, Fish and Fisheries
The Akosombo strain of Nile tilapia is the only approved tilapia strain for culture in Ghana. In this study, exotic red tilapia suspected to be cultured in fish farms within the Lower Volta River Basin of the Lake Volta were collected for species ...
Samuel Duodu, Angela N. A. Ayiku, Patrick Appenteng, Obed Danso Acheampong, Gifty Anane‐Taabeah Attu, Kofitsyo S. Cudjoe   +5 more
doaj   +1 more source

Gonadal Development–Related Genes and a Male‐Specific Genetic Marker Identified in the Endangered Sichuan Taimen (Hucho bleekeri)

Integrative Zoology, EarlyView.
Integrated transcriptomic and proteomic analyses were used to validate gonadal development–related genes and to identify a sex‐specific molecular marker in Hucho bleekeri. ABSTRACT Sex determination and differentiation represent fundamental topics in reproductive biology. Sichuan taimen (Hucho bleekeri), a first‐class national protected fish species in
Qinyao Wei, Hua Li, Yeyu Chen, Huanchao Yang, Jun Du, Zhaobin Song   +5 more
wiley   +1 more source

Recovery from Hypersaline-Stress-Induced Immunity Damage and Intestinal-Microbiota Changes through Dietary β-glucan Supplementation in Nile tilapia (Oreochromis niloticus)

Animals, 2020
Long-term exposure to hyperosmotic environments can induce severe immune damage and increase risk in tilapia breeding. As an effective immunoregulator, β-glucan has attracted extensive attention in nutritional research and given rise to high expectations
Chang Xu, Yantong Suo, Xiaodan Wang, Jian G Qin, Liqiao Chen, Erchao Li   +5 more
doaj   +1 more source

Expression of corticoid‐regulatory genes in the gills of Atlantic salmon (Salmo salar) parr and smolt and during salinity acclimation

Journal of Fish Biology, EarlyView.
Abstract In teleost fishes, cortisol is the major corticoid and has both glucocorticoid and mineralocorticoid actions. However, how fish tissues discriminate between these distinct corticosteroid actions is unclear. In mammals, the major factors responsible for intracellular corticosteroid regulation are glucocorticoid receptors (grs) and the ...
Makoto Kusakabe, Takashi Yada, Graham Young, Amy M. Regish, Stephen D. McCormick   +4 more
wiley   +1 more source

Metabolic cost of acute and chronic salinity response of hybrid red tilapia Oreochromis sp. larvae

Aquaculture Reports, 2020
Saline-tolerant hybrid red tilapia Oreochromis sp. has shown benefits in the aquaculture industry, hence understanding the adaptability to salinity changes is crucial towards developing optimum culture practices. The present study investigates the growth
Sharifah Rahmah, Hon Jung Liew, Nazronha Napi, Siti Aishah Rahmat   +3 more
doaj   +1 more source

A wild‐caught rosy barb Pethia conchonius in a British urban pond underscores the need to prevent aquarium releases

Journal of Fish Biology, EarlyView.
Abstract A specimen of rosy barb Pethia conchonius of 51 mm standard length, encountered in an urban pond in London, is reported. This small cyprinid is native to lakes and streams in subtropical regions of southern Asia and is commonly sold as an ornamental fish.
Peter J. Barry, Phil I. Davison, Luke Pearson, Gordon H. Copp   +3 more
wiley   +1 more source

Reproductive and Phenotypic Performance of Hybrid Crosses Between GIFT and Red Tilapia Strains

UMYU Scientifica Journal
The reproductive and hybrid potentials of hybrids derived from a partial diallel cross between GIFT (Genetically Improved Farmed Tilapia) and Red Tilapia strains were evaluated.
Jerimoth Kesena Ekelemu, Oster Francis Nwachi   +1 more
doaj   +1 more source

Bony fish genomes: Status and gaps

Journal of Fish Biology, EarlyView.
Abstract Bony fish constitute an exceptionally species‐rich group of aquatic vertebrates, comprising more than 95% of all living fish. The adaptive processes on the diversity of environments they inhabit make them a highly diverse group from taxonomic, morphological and evolutionary standpoints.
Noelia Pérez‐Pereira, Carmen Bouza, Paulino Martínez, Diego Robledo   +3 more
wiley   +1 more source

Chronic thermal stress affects growth, liver morphology and molecular responses but allows recovery at optimal temperature in juvenile zebrafish (Danio rerio)

Journal of Fish Biology, EarlyView.
Abstract Climate‐driven aquatic heatwaves pose an increasing threat to fish populations by inducing prolonged thermal stress. However, the resilience of teleosts to chronic heat exposure and their capacity for recovery remains poorly understood. This study investigated the effects of chronic high‐temperature exposure on juvenile zebrafish (Danio rerio).
Monique Adzijovski, Aaron G. Schultz, Jemma Bergfeld, Luis O. B. Afonso   +3 more
wiley   +1 more source

Take my breath away: Defining the oxygen saturation threshold for fish cortisol stress response

Journal of Fish Biology, EarlyView.
Abstract Human activities are affecting the number, size and severity of hypoxic zones in aquatic ecosystems. As oxygen is one of the most important abiotic factors affecting fish biology, exposure to low levels of dissolved oxygen may lead to a reduction in fitness.
Sébastien Alfonso, Benjamin Geffroy, Pierluigi Carbonara, Lola Toomey, Eduardo Bessa   +4 more
wiley   +1 more source