scholarly journals Changes in Tissue Biochemical Composition and Energy Reserves Associated With Sexual Maturation in the Ommastrephid SquidsIllex coindetiiandTodaropsis eblanae

2005 ◽  
Vol 208 (2) ◽  
pp. 100-113 ◽  
Author(s):  
R. Rosa ◽  
P. R. Costa ◽  
N. Bandarra ◽  
M. L. Nunes
Keyword(s):  
Sexual Maturation ◽  
Biochemical Composition ◽  
Energy Reserves

scholarly journals Changes in Biochemical Composition and Energy Reserves Associated With Sexual Maturation of Octopus maya

2020 ◽  
Vol 11 ◽  
Author(s):  
Cristina Pascual ◽  
Honorio Cruz-Lopez ◽  
Maite Mascaró ◽  
Pedro Gallardo ◽  
Ariadna Sánchez ◽  
...  
Keyword(s):  
Sexual Maturation ◽  
Biochemical Composition ◽  
Energy Reserves ◽  
Octopus Maya

Biochemical composition and energy reserves in Crassostrea gigas exposed to different levels of nutrition

Aquaculture ◽  
1990 ◽  
Vol 90 (2) ◽  
pp. 157-172 ◽  
Author(s):  
J.N.C. Whyte ◽  
J.R. Englar ◽  
B.L. Carswell
Keyword(s):  
Crassostrea Gigas ◽  
Biochemical Composition ◽  
Energy Reserves ◽  
Different Levels

Effect of different diets in the biochemical composition, lipid peroxidation and reproductive traits of Hyalella pleoacuta and Hyalella curvispina

2011 ◽  
Vol 61 (4) ◽  
pp. 349-368
Author(s):  
Bibiana K. Dutra ◽  
Alessandra A.P. Bueno ◽  
Renata B. Santos ◽  
Guendalina T. Oliveira
Keyword(s):  
Lipid Peroxidation ◽  
Survival Rate ◽  
Coastal Plain ◽  
Biochemical Composition ◽  
Reproductive Traits ◽  
Energy Reserves ◽  
Southern Brazil ◽  
Hyalella Curvispina ◽  
Ad Libitum ◽  
Caloric Requirements

AbstractWe compared the effect of different diets biochemical composition, levels of lipid peroxidation, survival rate, and reproductive aspects of Hyalella pleoacuta and H. curvispina. These crustaceans live in limnetic environments of the plateau and coastal plain, respectively, in southern Brazil. In the laboratory, the animals were kept in aquariums under controlled conditions and fed ad libitum, for 30 days with different diets. Macrophyte only (MO) mimicked a caloric restriction in both species and sexes, because they showed depletion of glycogen and proteins, this fact was reinforced by the decrease in the levels of lipoperoxidation. These responses were probably a result of the low caloric input. In the animals that received macrophyte plus commercial food (MCF) these responses were reversed when the energy reserves were maintained and the levels of lipoperoxidation were higher than those of animal that received MO. Animals fed on MCF showed more activity, higher numbers of couples, ovigerous females and eggs for females, however, the rate of survival was similar in both diets. The caloric requirements of both species were probable supplied with MCF, which provided more carbohydrates, proteins and lipids, and this diet provided valuable information concerning adequate maintenance of the animals for toxicology experiments, and principally increases the knowledge about the physiology of this genus.

Effects of Starvation on Structure and Function in the Digestive Gland of the Mussel (Mytilus Edulis L.)

1974 ◽  
Vol 54 (3) ◽  
pp. 699-712 ◽  
Author(s):  
R. J. Thompson ◽  
N. A. Ratcliffe ◽  
B. L. Bayne
Keyword(s):  
Mytilus Edulis ◽  
Digestive Gland ◽  
Temperature Stress ◽  
Seasonal Changes ◽  
Biochemical Composition ◽  
Structure And Function ◽  
Energy Reserves ◽  
Storage Function ◽  
Energy Store ◽  
And Function

During recent years attention has been focused on the morphology of the bivalve digestive gland (Sumner, 1966a, b; Owen, 1970; Pal, 1971,1972) but there is little information concerning its role in the storage of energy reserves. Reid (1969) has suggested that in the horse clam, Tresus capax, digestive gland lipid may serve as an energy store which is depleted when food is scarce. Sastry (1966) and Sastry and Blake (1971) have shown that material stored in the digestive tissue of Aequipecten irradians is transferred to the gonad during gametogenesis and Vassallo (1973) has confirmed the transfer of lipid in Chlamys hericia. The digestive gland of My tilus edulis may also have a storage function and may therefore be involved in the utilisation of reserves during starvation. The present paper deals with seasonal changes in the biochemical composition of the digestive gland of M. edulis, and with changes induced by starvation and temperature stress.

Biochemical composition and energy reserves in the larvae and adults of the four british periwinkles Littorina littorea, L. littoralis, L. saxatilis and L. neritoides

1975 ◽  
Vol 33 (3) ◽  
pp. 235-239 ◽  
Author(s):  
D. L. Holland ◽  
R. Tantanasiriwong ◽  
P. J. Hannant
Keyword(s):  
Biochemical Composition ◽  
Littorina Littorea ◽  
Energy Reserves

Influence of algal diets on biochemical composition and energy reserves in Patinopecten yessoensis (Jay) larvae

Aquaculture ◽  
1989 ◽  
Vol 78 (3-4) ◽  
pp. 333-347 ◽  
Author(s):  
J.N.C. Whyte ◽  
N. Bourne ◽  
C.A. Hodgson
Keyword(s):  
Biochemical Composition ◽  
Energy Reserves ◽  
Patinopecten Yessoensis ◽  
Algal Diets

Assessment of biochemical composition and energy reserves in larvae of the scallop Patinopecten yessoensis

1987 ◽  
Vol 113 (2) ◽  
pp. 113-124 ◽  
Author(s):  
J.N.C. Whyte ◽  
N. Bourne ◽  
C.A. Hodgson
Keyword(s):  
Biochemical Composition ◽  
Energy Reserves ◽  
Patinopecten Yessoensis

scholarly journals Sexual maturation and embryonic development in octopus: use of energy and antioxidant defence mechanisms using Octopus mimus as a model

2018 ◽  
Author(s):  
Alberto Olivares ◽  
Gabriela Rodríguez-Fuentes ◽  
Maite Mascaró ◽  
Ariadna Sánchez ◽  
Karen Ortega ◽  
...  
Keyword(s):  
Sexual Maturation ◽  
Biochemical Composition ◽  
Digestive Enzymes ◽  
Redox System ◽  
Defence Mechanisms ◽  
Radical Oxygen Species ◽  
Antioxidant Defence ◽  
Physiological Processes ◽  
The Status ◽  
A Site

AbstractSexual maturation and reproduction influence the status of a number of physiological processes and consequently the ecology and behaviour of cephalopods. Using Octopus mimus as model species, the present study examined the changes in biochemical composition that take place during gonadal maturation of octopus females and its consequences in embryo and hatchlings characteristics, including energetic metabolites, digestive enzymes and antioxidant defence mechanisms. A total of 32 Octopus mimus adult females were sampled during ovarian maturation; biochemical composition (metabolites and digestive enzymes) of digestive gland (DG) and ovaries (only metabolites) were followed during physiological and functional maturation. Levels of protein (Prot), triacyl glycerol (TG), cholesterol (Chol), glucose (Glu) and glycogen (Gly) were evaluated. The activity of alkaline and acidic enzymes also was measured in DG. Simultaneously, groups of eggs coming from mature females were sampled along development, and metabolites (Prot, TG, Glu, Gly, TG, Chol), digestive enzymes activity (Lipases, alkaline and acidic), antioxidant defence mechanisms and radical oxygen species (ROS) were evaluated. This study shows that ovarium is a site for reserve of some nutrients for reproduction. Presumably, TG where stored at the beginning of the maturation processes followed by Chol, both at the same time were energetically supported by Glu, derived from Gly following gluconeogenic pathways. Nutrients and enzymes (metabolic, digestive and REDOX system) where maintained without significant changes and in a low activity during organogenesis. Our findings suggest that activity was not energetically costly; in contrast, during the embryo growth there was mobilization of nutrients and activation of the metabolic and digestive enzymes. Increments in consumption of yolk and glycogen, and reduction in molecules associated with oxidative stress allowed paralarvae to hatch with the antioxidant defence mechanisms ready to support ROS production.

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