Physiological energetics of developing embryos and yolk-sac larvae of Atlantic cod (Gadus morhua). II. Lipid metabolism and enthalpy balance

1995 ◽  
Vol 124 (3) ◽  
pp. 371-379 ◽  
Author(s):  
R. N. Finn ◽  
J. R. Henderson ◽  
H. J. Fyhn
Keyword(s):  
Lipid Metabolism ◽  
Gadus Morhua ◽  
Atlantic Cod ◽  
Yolk Sac ◽  
Enthalpy Balance ◽  
Physiological Energetics

scholarly journals Proteomics and lipidomics analyses reveal modulation of lipid metabolism by perfluoroalkyl substances in liver of Atlantic cod (Gadus morhua)

2020 ◽  
Vol 227 ◽  
pp. 105590 ◽  
Author(s):  
Karina Dale ◽  
Fekadu Yadetie ◽  
Mette Bjørge Müller ◽  
Daniela M. Pampanin ◽  
Alejandra Gilabert ◽  
...  
Keyword(s):  
Lipid Metabolism ◽  
Gadus Morhua ◽  
Atlantic Cod ◽  
Perfluoroalkyl Substances

The risk of running on empty: the influence of age on starvation and gut fullness in larval Atlantic cod (Gadus morhua)

2003 ◽  
Vol 60 (10) ◽  
pp. 1289-1298 ◽  
Author(s):  
Adrian Jordaan ◽  
Joseph A Brown
Keyword(s):  
Gadus Morhua ◽  
Atlantic Cod ◽  
Day Treatment ◽  
Yolk Sac ◽  
Activity Levels ◽  
Activity Data ◽  
First Feeding ◽  
Age Dependent ◽  
Gut Fullness ◽  
Set Up

Two experiments were set up to evaluate whether the response of Atlantic cod (Gadus morhua) larvae to no-prey conditions changes with age. The first experiment was designed to test for age-specific starvation with starvation trials at 0, 5, 15, 30, and 45 days after hatching. Mortality, length, and swimming activity data were collected. A second experiment was conducted to determine the effect of non-feeding conditions on the residency of prey in the gut at 5, 15, 30, and 45 days after hatching. The results of experiment 1 indicated that mortality occurred most rapidly at 15 and 30 days and was delayed during the yolk-sac period (day 0). Larvae in non-fed treatments showed significantly lower activity levels, except in the 45-day treatment, and the reduction in activity occurred before the onset of mortality. In experiment 2, gut residencies displayed an age-dependent response, with 5- and 45-day-old larvae having significantly shorter residency times. We conclude that beyond the yolk-sac period, cod larvae exhibit an age-dependent trade-off between growth and starvation risk. Larval age also influences patterns of gut fullness over time, with the fastest rates of gut clearance found at first-feeding and metamorphosis.

Effects of temperature on life history set the sensitivity to fishing in Atlantic cod Gadus morhua

2014 ◽  
Vol 514 ◽  
pp. 217-229 ◽  
Author(s):  
HY Wang ◽  
LW Botsford ◽  
JW White ◽  
MJ Fogarty ◽  
F Juanes ◽  
...  
Keyword(s):  
Life History ◽  
Gadus Morhua ◽  
Atlantic Cod ◽  
Effects Of Temperature

Responses of Atlantic cod Gadus morhua head kidney leukocytes to phytase produced by gastrointestinal-derived bacteria

2009 ◽  
Vol 36 (4) ◽  
pp. 883-891 ◽  
Author(s):  
Carlo C. Lazado ◽  
Christopher Marlowe A. Caipang ◽  
Sanchala Gallage ◽  
Monica F. Brinchmann ◽  
Viswanath Kiron
Keyword(s):  
Gadus Morhua ◽  
Atlantic Cod ◽  
Head Kidney

Some recent data on sperm morphology and motility kinetics in Atlantic cod (Gadus morhua L.)

2021 ◽  
Author(s):  
Sayyed Mohammad Hadi Alavi ◽  
Azadeh Hatef ◽  
Ian A.E. Butts ◽  
Olga Bondarenko ◽  
Jacky Cosson ◽  
...  
Keyword(s):  
Gadus Morhua ◽  
Sperm Morphology ◽  
Atlantic Cod

Natural mortality from poor condition in Atlantic cod (Gadus morhua)

2000 ◽  
Vol 57 (4) ◽  
pp. 826-836 ◽  
Author(s):  
Jean-Denis Dutil ◽  
Yvan Lambert
Keyword(s):  
Gadus Morhua ◽  
Atlantic Cod ◽  
Negative Impact ◽  
Fish Muscle ◽  
Early Summer ◽  
Wild Fish ◽  
Natural Mortality ◽  
Muscle Lactate ◽  
Lactate Dehydrogenase Activity ◽  
Poor Condition

The extent of energy depletion was assessed in Atlantic cod (Gadus morhua) in spring and early summer (1993-1995) to assess relationships between poor condition and natural mortality. Several indices of condition were compared in wild fish in the northern Gulf of St. Lawrence and in fish exposed to a prolonged period of starvation in laboratory experiments. Discriminant analyses classified only a small fraction of the wild fish as similar to cod that did not survive and a much larger fraction as similar to cod that survived starvation. This percentage increased from April to May and peaked in June 1993 and 1994. Condition factor and muscle somatic index allowed a clear distinction between live and dead fish. Muscle lactate dehydrogenase activity suggested that cod had experienced a period of negative growth early in 1993, 1994, and 1995. Fish classified as similar to starved individuals were characterized by a higher gonad to liver mass ratio than others. Reproduction may have a negative impact on survival not only in spring but also later into summer, as some individuals were found not to have recovered by late summer. This study shows that natural mortality from poor condition contributed to lower production in the early 1990s.

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