Red muscle proportions and enzyme activities in deep-sea demersal fishes

2013 ◽  
Vol 83 (6) ◽  
pp. 1592-1612 ◽  
Author(s):  
J. C. Drazen ◽  
B. Dugan ◽  
J. R. Friedman
Keyword(s):  
Deep Sea ◽  
Enzyme Activities ◽  
Red Muscle ◽  
Demersal Fishes

Day and Nighttime Changes in Species Composition of Deep-Sea Demersal Fishes

2005 ◽  
Vol 61 (2) ◽  
pp. 187-196 ◽  
Author(s):  
Kishiko Suetsugu ◽  
Suguru Ohta
Keyword(s):  
Species Composition ◽  
Deep Sea ◽  
Demersal Fishes

EFFECTS OF FEEDING AND FOOD DEPRIVATION ON OXYGEN CONSUMPTION, MUSCLE PROTEIN CONCENTRATION AND ACTIVITIES OF ENERGY METABOLISM ENZYMES IN MUSCLE AND BRAIN OF SHALLOW-LIVING (SCORPAENA GUTTATA) AND DEEP-LIVING (SEBASTOLOBUS ALASCANUS) SCORPAENID FISHES

1993 ◽  
Vol 181 (1) ◽  
pp. 213-232 ◽  
Author(s):  
T. H. Yang ◽  
G. N. Somero
Keyword(s):  
Skeletal Muscle ◽  
Metabolic Rate ◽  
Food Deprivation ◽  
Enzyme Activities ◽  
Protein Concentration ◽  
White Muscle ◽  
Muscle Protein ◽  
Metabolism Enzymes ◽  
Red Muscle ◽  
Ad Libitum

The effects of feeding and fasting were examined on the deep-living short-spine thornyhead (Sebastolobus alascanus) and the confamilial shallow-living spotted scorpionfish (Scorpaena guttata) to determine whether the low metabolic rate of the deeper-living species was in part a consequence of food deprivation in its habitat. Laboratory acclimation for periods of 90–115 days under either ad libitum feeding or complete fasting did not lead to similar rates of respiration in individuals of the two species held under identical conditions. Respiration of fish fed ad libitum was 52 % (S. guttata) or 68 % (S. alascanus) higher than for fasted fish of the same species. Furthermore, the metabolic rates of freshly collected specimens of S. alascanus resembled those of laboratory-fasted fish. In white skeletal muscle, both total protein concentration and the activities of four enzymes of ATP metabolism, lactate dehydrogenase (LDH) and pyruvate kinase (PK) of glycolysis, malate dehydrogenase (MDH) and citrate synthase (CS, a citric acid cycle indicator), were lower in S. alascanus than in S. guttata. Within a species, protein concentration and activities of the four enzymes in white muscle, but not in brain, were higher in fed than in starved fish, although these differences were greater in S. alascanus than in S. guttata. During fasting, LDH and PK activity in white muscle of S. alascanus decreased much more than MDH and CS activity; decreases in enzyme activities in red muscle were smaller than those in white muscle. Activities of enzymes in white skeletal muscle of field-collected S. alascanus generally resembled those of the fasted specimens. In contrast, red muscle of field- collected S. alascanus, compared with that of either fed or starved laboratory-held specimens, had a highly glycolytic poise (high LDH and PK activities relative to MDH and CS activities), which may suggest that muscle enzyme activities in the field-collected fish reflect adaptation to the low oxygen level in its adult habitat, the oxygen minimum layer. The strong correlations found between tissue biochemical properties and respiration rate allow us to develop a predictive index for metabolic rate from simple biochemical analyses, e.g. white muscle protein content or CS activity. We conclude that the low metabolic rate of S. alascanus is due to at least four depth-related factors: reduced abundance of food, low temperature, low ambient oxygen concentration and darkness, which may select for reduced locomotory activity.

Enzyme activities of demersal fishes from the shelf to the abyssal plain

2015 ◽  
Vol 100 ◽  
pp. 117-126 ◽  
Author(s):  
Jeffrey C. Drazen ◽  
Jason R. Friedman ◽  
Nicole E. Condon ◽  
Erica J. Aus ◽  
Mackenzie E. Gerringer ◽  
...  
Keyword(s):  
Enzyme Activities ◽  
Abyssal Plain ◽  
Demersal Fishes

Production/Biomass Ratios, Size Frequencies and Biomass Spectra in Deep-Sea Demersal Fishes

1992 ◽  
pp. 157-182 ◽  
Author(s):  
Richard L. Haedrich ◽  
Nigel R. Merrett
Keyword(s):  
Deep Sea ◽  
Biomass Spectra ◽  
Demersal Fishes

scholarly journals Gill surface area and metabolic enzyme activities of demersal fishes associated with the oxygen minimum zone off California

2012 ◽  
Vol 57 (6) ◽  
pp. 1701-1710 ◽  
Author(s):  
Jason R. Friedman ◽  
Nicole E. Condon ◽  
Jeffrey C. Drazen
Keyword(s):  
Surface Area ◽  
Enzyme Activities ◽  
Oxygen Minimum Zone ◽  
Metabolic Enzyme ◽  
Minimum Zone ◽  
Gill Surface Area ◽  
Oxygen Minimum ◽  
Demersal Fishes

scholarly journals Baited camera survey of deep-sea demersal fishes of the West African oil provinces off Angola: 1200–2500m depth, East Atlantic Ocean

2017 ◽  
Vol 129 ◽  
pp. 347-364 ◽  
Author(s):  
Alan J. Jamieson ◽  
Thomas D. Linley ◽  
Jessica Craig
Keyword(s):  
Atlantic Ocean ◽  
Deep Sea ◽  
West African ◽  
East Atlantic ◽  
The West ◽  
Demersal Fishes

scholarly journals Microbial hydrolytic enzyme activities in deep-sea sediments

1995 ◽  
Vol 49 (1-4) ◽  
pp. 177-187 ◽  
Author(s):  
A. Boetius
Keyword(s):  
Deep Sea ◽  
Enzyme Activities ◽  
Hydrolytic Enzyme ◽  
Deep Sea Sediments

Direct measurement of active dispersal of food-falls by deep-sea demersal fishes

Nature ◽  
1991 ◽  
Vol 351 (6328) ◽  
pp. 647-649 ◽  
Author(s):  
I. G. Priede ◽  
P. M. Bagley ◽  
J. D. Armstrong ◽  
K. L. Smith ◽  
N. R. Merrett
Keyword(s):  
Direct Measurement ◽  
Deep Sea ◽  
Active Dispersal ◽  
Food Falls ◽  
Demersal Fishes
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