Results 81 to 90 of about 122,184 (321)

Commercial mariculture of Oreochromis niloticus using net cages [PDF]

, 1987
The culture of tilapia has a long history in Africa. Fossil remains of members of the genus have been found which are about 18 million years old (Fryer and Iles, 1972).
Fineman-Kalio, A.S.
core  

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

Determination of heavy metal genotoxicity and their accumulation pattern in different fish organs of selected fish species collected from the Asa River, Ilorin, Kwara State, Nigeria

Journal of Applied Sciences and Environmental Management, 2016
This study investigated bioaccumulation of heavy metals and cytogenotoxic effects that could result from exposure of fish to heavy metals in the Asa River, Ilorin, Nigeria.
Okoro Hussein Kehinde, Iyiola Oluyinka Ajibola, Simon Isaac, Oladipo O. Segun   +3 more
doaj   +1 more source

Comparison of some traits of economic importance in tilapias (Orechromis niloticus and Sarotherodon galilaeus) with particular reference to their culture in Ghana [PDF]

, 2005
This study was conducted to determine which of the two major tilapia species in freshwater capture fisheries in Ghana, Oreochromis niloticus or Sarotherodon galilaeus, is more suitable for breed improvement and pond culture.
Attipoe, F.Y.K., Owusu-Frimpong, M., Padi, J.N.   +2 more
core  

The key mechanisms associated with the survival of Gulf toadfish, Opsanus beta, when in severe hypoxia

Journal of Fish Biology, EarlyView.
Abstract Florida's shallow seagrass beds experience daily diurnal fluctuations in environmental oxygen, leading to hypoxic episodes (PO2 < 2 mg L−1, ~6 kPa) that have increased in frequency and intensity in recent decades. The native Gulf toadfish (Opsanus beta) have been shown to employ a suite of adaptive cardiovascular, ventilatory and metabolic ...
Anastasiya Plotnikova, Isabelle R. Nelson, Shara Y. Sookhoo, Jacob M. Belkin, Vanessa P. Lima, Ross D. Bronfman Bunch, Athena M. Santomero, Sophia A. Santomero, Emily C. Rodriguez, Jayda K. Rodriguez, Kathleen M. Davis, Amanda J. Kaplan, Lucy M. Schwartz, Vivienne S. Clarke, Henry W. Sage, Ana I. Ruiz Criado, Kennedy T. Diamond, M. Danielle McDonald   +17 more
wiley   +1 more source

Morphometric Characterization of Oreochromis Species Habitating in Jipe Lake, Kenya

Aquaculture, Fish and Fisheries
Lake Jipe, a shared resource at the Kenya‐Tanzania border, has experienced significant fish introductions impacting its fish diversity. Despite these changes, the variations in morphometric characters of fish in the lake have not been documented ...
Elizabeth Nyauchi, Gerald Kwikiriza, Harald Meimberg, Geoffrey Ong'ondo   +3 more
doaj   +1 more source

Sex Reversal of Red Tilapia (Oreochromis sp.) by Larval Immersion using Aromatase Inhibitor

Jurnal Akuakultur Indonesia, 2007
This study was performed to verify the effect of red Nile tilapia (Oreochromis sp.) larval immersion using aromatase inhibitor (1,3-Diaza-2,4-Cyclopentadience) on percentage of male fish.
M. Agus Sudrajat, I.D. Astutik, H. Arfah
doaj   +1 more source

Effects of a saponin fraction extracted from Trigonella foenum-graecum L. and two commercially available saponins on sex ratio and gonad histology of Nile tilapa fry, Oreochromis niloticus (L.) [PDF]

, 2013
Over three million tonnes (t) of tilapia, mostly Nile tilapia (Oreochromis niloticus, L.), are produced annually making it the second most abundantly produced freshwater fish (FAO, 2010).
Abu-Lafi, S., Becker, K., Dweik, H., Focken, U., Francis, G., Kerem, Z., Levavi-Sivan, B., Qutob, M., Stadtlander, T.   +8 more
core  

The Pathology and Blood Biochemistry of Juvenile Lates calcarifer on Diets Contaminated With Mycotoxins, Histamines and Rancid Fats—A Case Study

Journal of Fish Diseases, EarlyView.
ABSTRACT Mycotoxins, originating from contaminated raw materials or suboptimal feed storage, are a growing concern in tropical aquaculture. Common fungi such as Aspergillus spp. and Fusarium spp. produce mycotoxins including aflatoxin, fumonisin, deoxynivalenol and zearalenone. High doses or prolonged exposure (weeks) to low doses of these mycotoxins (<
Aidan Kwok, Jose A. Domingos, Joseph Oh, Piero Chan, Joyce J. L. Ong, Leo Nankervis, Jeffrey Ling, Robert Nichol, Susan Gibson‐Kueh   +8 more
wiley   +1 more source

Caracterización de tilapia roja (Oreochromis sp.) con marcadores moleculares RAPD

Acta Agronómica, 2010
Se utilizó la técnica RAPD (amplificación al azar de ADN polimórfico) para el estudio de la diversidad genética de Oreochromis sp. (tilapia roja) en cinco piscícolas del Valle del Cauca (Colombia) y en la determinación del nivel de introgresión de las ...
Julieta Torres Jaramillo, Jaime Eduardo Muñoz, Heiber Cárdenas, Luz ángela álvarez, Juan Diego Palacio   +4 more
doaj   +2 more sources