scholarly journals Effects of Water Temperature on Sex Differentiation and Growth Parameters of the Mozambique Tilapia (Oreochromis mossambicus, Peters, 1852)

2019 ◽  
Vol 34 (1) ◽  
pp. 22-28
Author(s):  
Karl Christofer Kingueleoua Koyakomanda ◽  
Muamer Kürşat Fırat ◽  
Cüneyt Süzer ◽  
Serhat Engin ◽  
Müge Hekimoğlu ◽  
...  
Keyword(s):  
Water Temperature ◽  
Growth Parameters ◽  
Sex Differentiation ◽  
Oreochromis Mossambicus ◽  
Mozambique Tilapia

scholarly journals Effects of 17ß-estradiol Hormone on Growth and Sex Differentiation in the Mozambique Tilapia (Oreochromis mossambicus, Peters, 1852)

2019 ◽  
Vol 34 (1) ◽  
pp. 14-21
Author(s):  
Karl Christofer Kingueleoua Koyakomanda ◽  
Muamer Kürşat Fırat ◽  
Cüneyt Süzer ◽  
Serhat Engin ◽  
Müge Hekimoğlu ◽  
...  
Keyword(s):  
Sex Differentiation ◽  
Oreochromis Mossambicus ◽  
Mozambique Tilapia

The effect of water temperature on growth parameters of intensively reared juvenile peled Coregonus peled

2016 ◽  
Vol 48 (4) ◽  
pp. 1877-1884 ◽  
Author(s):  
Jan Matousek ◽  
Vlastimil Stejskal ◽  
Marketa Prokesova ◽  
Jan Kouril
Keyword(s):  
Water Temperature ◽  
Growth Parameters ◽  
Effect Of Water

scholarly journals clc-2c is regulated by salinity, prolactin and extracellular osmolality in tilapia gill

2017 ◽  
Vol 59 (4) ◽  
pp. 391-402 ◽  
Author(s):  
Jason P Breves ◽  
Paige L K Keith ◽  
Bethany L Hunt ◽  
K Keano Pavlosky ◽  
Mayu Inokuchi ◽  
...  
Keyword(s):  
Danio Rerio ◽  
External Environment ◽  
Oreochromis Mossambicus ◽  
Local Effect ◽  
Intrinsic Factors ◽  
Mozambique Tilapia ◽  
Regulatory Link ◽  
Gill Filaments ◽  
Ovine Prolactin ◽  
First Time

Teleosts inhabiting fresh water (FW) depend upon ion-absorptive ionocytes to counteract diffusive ion losses to the external environment. A Clc Cl−channel family member, Clc-2c, was identified as a conduit for basolateral Cl−transport by Na+/Cl−cotransporter 2 (Ncc2)-expressing ionocytes in stenohaline zebrafish (Danio rerio). It is unresolved whether Clc-2c/clc-2cis expressed in euryhaline species and how extrinsic and/or intrinsic factors modulate branchialclc-2cmRNA. Here, we investigated whether environmental salinity, prolactin (Prl) and osmotic conditions modulateclc-2cexpression in euryhaline Mozambique tilapia (Oreochromis mossambicus). Branchialclc-2candncc2mRNAs were enhanced in tilapia transferred from seawater (SW) to FW, whereas both mRNAs were attenuated upon transfer from FW to SW. Next, we injected hypophysectomized tilapia with ovine prolactin (oPrl) and observed a marked increase inclc-2cfrom saline-injected controls. To determine whether Prl regulatesclc-2cin a gill-autonomous fashion, we incubated gill filaments in the presence of homologous tilapia Prls (tPrl177and tPrl188). By 24 h, tPrl188stimulatedclc-2cexpression ~5-fold from controls. Finally, filaments incubated in media ranging from 280 to 450 mosmol/kg for 3 and 6 h revealed that extracellular osmolality exerts a local effect onclc-2cexpression;clc-2cwas diminished by hyperosmotic conditions (450 mosmol/kg) compared with isosmotic controls (330 mosmol/kg). Our collective results suggest that hormonal and osmotic control of branchialclc-2ccontributes to the FW adaptability of Mozambique tilapia. Moreover, we identify for the first time a regulatory link between Prl and a Clc Cl−channel in a vertebrate.

scholarly journals Ambient Salinity Modulates the Expression of Sodium Pumps in Branchial Mitochondria-Rich Cells of Mozambique Tilapia, Oreochromis mossambicus

2003 ◽  
Vol 20 (1) ◽  
pp. 29-36 ◽  
Author(s):  
Tsung-Han Lee ◽  
Shin-Huey Feng ◽  
Chia-Hao Lin ◽  
Yu-Hwa Hwang ◽  
Chao-Lu Huang ◽  
...  
Keyword(s):  
Oreochromis Mossambicus ◽  
Sodium Pumps ◽  
Mozambique Tilapia ◽  
Ambient Salinity
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