Gonadal Maturation, Calcium Metabolism, Osmoregulatory Ability, and Plasma Hormones during Spawning Migration of Atlantic Salmon

1998 ◽  
Vol 839 (1 TRENDS IN COM) ◽  
pp. 440-441 ◽  
Author(s):  
PETRA PERSSON ◽  
KRISTINA SUNDELL ◽  
BJORN THRANDUR BJORNSSON ◽  
HANS LUNDQVIST
Keyword(s):  
Atlantic Salmon ◽  
Calcium Metabolism ◽  
Spawning Migration ◽  
Gonadal Maturation ◽  
Plasma Hormones ◽  
Osmoregulatory Ability

scholarly journals Descaling Injury Impairs the Osmoregulatory Ability of Atlantic Salmon Smolts Entering Seawater

2010 ◽  
Vol 139 (1) ◽  
pp. 129-136 ◽  
Author(s):  
Joseph Zydlewski ◽  
Gayle Zydlewski ◽  
G. Russell Danner
Keyword(s):  
Atlantic Salmon ◽  
Osmoregulatory Ability

Effects of feed, feeding regime and growth rate on flesh quality, connective tissue and plasma hormones in farmed Atlantic salmon (Salmo salar L.)

Aquaculture ◽  
2011 ◽  
Vol 318 (3-4) ◽  
pp. 343-354 ◽  
Author(s):  
Chris André Johnsen ◽  
Ørjan Hagen ◽  
Michael Adler ◽  
Elisabeth Jönsson ◽  
Peter Kling ◽  
...  
Keyword(s):  
Growth Rate ◽  
Connective Tissue ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Flesh Quality ◽  
Feeding Regime ◽  
Atlantic Salmon Salmo Salar ◽  
Plasma Hormones ◽  
Farmed Atlantic Salmon

Effects of Photoperiod, Temperature, and Diet on the Reconditioning Response, Blood Chemistry, and Gonad Maturation of Atlantic Salmon Kelts (Salmo salar) Held in Freshwater

1987 ◽  
Vol 44 (4) ◽  
pp. 702-711 ◽  
Author(s):  
C. E. Johnston ◽  
R. W. Gray ◽  
A. McLennan ◽  
A. Paterson
Keyword(s):  
Alkaline Phosphatase ◽  
Atlantic Salmon ◽  
Feeding Behavior ◽  
Salmo Salar ◽  
Egg Production ◽  
Blood Chemistry ◽  
Gonadal Development ◽  
Gonad Maturation ◽  
Gonadal Maturation ◽  
Natural Photoperiod

Changes in feeding behavior, rate of reconditioning, gonadal development, and maturation were investigated together with changes in plasma electrolytes, triglycerides, cholesterol, protein, and alkaline phosphatase in female Atlantic salmon kelts (Salmo salar) exposed to advanced and simulated natural photoperiods and warmer and natural water temperatures. Natural photoperiod cycles at natural and 12 °C temperatures were most stimulatory for feeding behavior, reconditioning, gonadal development, and maturation. Advancing photoperiod only slightly stimulated gametogenesis at 12 °C whereas at low temperature, vitellogenesis did not proceed and oocyte maturation did not occur. In all regimes, early reconditioning was associated with gonadal maturation. The levels of calcium, triglycerides, and alkaline phosphatase were markedly elevated in spawners and were coincident with temperature and photoperiod manipulation. No similar change occurred in nonspawners. Ovulation occurred earliest in the advanced photoperiod and 12 °C temperature regime, suggesting an effect of both temperature and photoperiod on the rate of gonadal maturation. The factors influencing egg production and maturation in Atlantic salmon kelts are also discussed.

Sign in / Sign up

Export Citation Format

Share Document