BIOCHEMICAL STUDIES ON SOCKEYE SALMON DURING SPAWNING MIGRATION: IV. THE NON-PROTEIN NITROGENOUS CONSTITUENTS OF THE MUSCLE

1958 ◽  
Vol 36 (8) ◽  
pp. 833-838 ◽  
Author(s):  
J. D. Wood
Keyword(s):  
Sockeye Salmon ◽  
The Other ◽  
Spawning Migration ◽  
Female Fish ◽  
Male And Female ◽  
Low Level ◽  
Early Stages ◽  
Biochemical Studies

The non-protein nitrogenous constituents of muscle of migrating sockeye salmon were investigated. These constituents were found to be the same in both male and female fish and were present in approximately the same amounts in both sexes. The histidine content of the muscle in all fish decreased to one fifth of the original value during the early stages of the migratory journey and remained at the low level thereafter. Some of the other constituents changed to a smaller extent, usually increasing in the later stages of the migration. This was especially noticeable in female fish. However, the increase in the concentration of these constituents in the muscle was due to a decrease in the amount of muscle in the fish rather than to an increase in the amounts of the compounds themselves.

BIOCHEMICAL STUDIES ON SOCKEYE SALMON DURING SPAWNING MIGRATION: IV. THE NON-PROTEIN NITROGENOUS CONSTITUENTS OF THE MUSCLE

1958 ◽  
Vol 36 (1) ◽  
pp. 833-838 ◽  
Author(s):  
J. D. Wood
Keyword(s):  
Sockeye Salmon ◽  
The Other ◽  
Spawning Migration ◽  
Female Fish ◽  
Male And Female ◽  
Low Level ◽  
Early Stages ◽  
Biochemical Studies

The non-protein nitrogenous constituents of muscle of migrating sockeye salmon were investigated. These constituents were found to be the same in both male and female fish and were present in approximately the same amounts in both sexes. The histidine content of the muscle in all fish decreased to one fifth of the original value during the early stages of the migratory journey and remained at the low level thereafter. Some of the other constituents changed to a smaller extent, usually increasing in the later stages of the migration. This was especially noticeable in female fish. However, the increase in the concentration of these constituents in the muscle was due to a decrease in the amount of muscle in the fish rather than to an increase in the amounts of the compounds themselves.

Biochemical Studies on Sockeye Salmon During Spawning Migration: XI. The Free Histidine Content of the Tissues

1960 ◽  
Vol 17 (3) ◽  
pp. 347-351 ◽  
Author(s):  
J. D. Wood ◽  
D. W. Duncan ◽  
M. Jackson
Keyword(s):  
Amino Acid ◽  
Sockeye Salmon ◽  
Alimentary Tract ◽  
Oncorhynchus Nerka ◽  
The Other ◽  
Spawning Migration ◽  
Fraser River ◽  
Initial Value ◽  
Spawning Grounds ◽  
Biochemical Studies

During the first 250 miles (400 km) of spawning migration of Fraser River sockeye salmon (Oncorhynchus nerka) the free histidine content of the muscle, alimentary tract, and head+skin+bones+tail decreased to a small fraction of the initial value. A further decrease occurred in the levels of this amino acid in the alimentary tract during the subsequent 415-mile (657-km) migration to the spawning grounds, no change being observed with the other tissues. Comparatively small changes in free histidine were found with heart, spleen, liver, kidney and gonads during migration.

Biochemical Studies on Sockeye Salmon During Spawning Migration. V. Cholesterol, Fat, Protein and Water in the Body of the Standard Fish

1959 ◽  
Vol 16 (2) ◽  
pp. 235-241 ◽  
Author(s):  
D. R. Idler ◽  
I. Bitners
Keyword(s):  
Sockeye Salmon ◽  
Oncorhynchus Nerka ◽  
The Body ◽  
Spawning Migration ◽  
Sampling Station ◽  
Entire Body ◽  
Fraser River ◽  
Spawning Grounds ◽  
Male And Female ◽  
Biochemical Studies

The absolute changes in fat, protein, water and free and esterified cholesterol for the entire body of standard male and female sockeye salmon (Oncorhynchus nerka) during the Fraser River spawning migration are discussed.The data were obtained for twelve groups of males and twelve groups of females, totalling 216 fish. The fish were caught at three locations: before entering the river, 250 miles up the river, and at one of the spawning grounds 715 miles from the first sampling station.

BIOCHEMICAL STUDIES ON SOCKEYE SALMON DURING SPAWNING MIGRATION: II. CHOLESTEROL, FAT, PROTEIN, AND WATER IN THE FLESH OF STANDARD FISH

1958 ◽  
Vol 36 (1) ◽  
pp. 793-798 ◽  
Author(s):  
D. R. Idler ◽  
I. Bitners
Keyword(s):  
Sockeye Salmon ◽  
Spawning Migration ◽  
Sampling Station ◽  
Spawning Grounds ◽  
Male And Female ◽  
Biochemical Studies ◽  
The Absolute

The absolute changes in free and esterified cholesterol, fat, protein, and water are discussed for the flesh of standard male and female salmon during the spawning migration. The data were obtained for 12 groups of male and 12 groups of female sockeye representing 216 fish. Fish were caught at three locations: below the entrance to the river, 250 miles up the river, and at the spawning grounds, which were 715 miles from the first sampling station.

BIOCHEMICAL STUDIES ON SOCKEYE SALMON DURING SPAWNING MIGRATION: III. CHANGES IN THE PROTEIN AND NON-PROTEIN NITROGEN FRACTIONS IN MUSCLES OF MIGRATING SOCKEYE SALMON

1958 ◽  
Vol 36 (8) ◽  
pp. 799-803 ◽  
Author(s):  
D. W. Duncan ◽  
H. L. A. Tarr
Keyword(s):  
Nitrogen Content ◽  
Sockeye Salmon ◽  
Protein Fractions ◽  
Spawning Migration ◽  
Female Fish ◽  
Protein Nitrogen ◽  
Nitrogen Fractions ◽  
Biochemical Studies ◽  
Migratory Route ◽  
Total Muscle

The nitrogen content of three protein fractions and one non-protein nitrogen fraction of muscles of migrating sockeye salmon was determined at three points on the migratory route. The results have been expressed as milligrams of nitrogen per 100 g. of muscle, as per cent of the total muscle nitrogen, and as grams of nitrogen per average (standard) male or female fish.

BIOCHEMICAL STUDIES ON SOCKEYE SALMON DURING SPAWNING MIGRATION: II. CHOLESTEROL, FAT, PROTEIN, AND WATER IN THE FLESH OF STANDARD FISH

1958 ◽  
Vol 36 (8) ◽  
pp. 793-798 ◽  
Author(s):  
D. R. Idler ◽  
I. Bitners
Keyword(s):  
Sockeye Salmon ◽  
Spawning Migration ◽  
Sampling Station ◽  
Spawning Grounds ◽  
Male And Female ◽  
Biochemical Studies ◽  
The Absolute

The absolute changes in free and esterified cholesterol, fat, protein, and water are discussed for the flesh of standard male and female salmon during the spawning migration. The data were obtained for 12 groups of male and 12 groups of female sockeye representing 216 fish. Fish were caught at three locations: below the entrance to the river, 250 miles up the river, and at the spawning grounds, which were 715 miles from the first sampling station.

Biochemical Studies on Sockeye Salmon During Spawning Migration.: IX. Fat, Protein and Water in the Major Internal Organs and Cholesterol in the Liver and Gonads of the Standard Fish

1960 ◽  
Vol 17 (1) ◽  
pp. 113-122 ◽  
Author(s):  
D. R. Idler ◽  
I. Bitners
Keyword(s):  
Sockeye Salmon ◽  
Alimentary Tract ◽  
Oncorhynchus Nerka ◽  
The Body ◽  
Spawning Migration ◽  
Fraser River ◽  
Internal Organs ◽  
Male And Female ◽  
Biochemical Studies ◽  
River Migration

Absolute changes in fat, protein and water of all major internal organs and free and esterified cholesterol of the liver and gonads of standard male and female sockeye salmon (Oncorhynchus nerka) during the 1957 Fraser River spawning migration to Stuart Lake are discussed. The alimentary tract is the major source of fat and protein from the internal organs and the greater part of this reserve is expended in the first 250 miles (403 km) of the river migration. The testes consumed only 0.5% of the energy expended from the body of the standard male while the ovaries consumed 8% of the energy expended from the body of the standard female.

BIOCHEMICAL STUDIES ON SOCKEYE SALMON DURING SPAWNING MIGRATION: III. CHANGES IN THE PROTEIN AND NON-PROTEIN NITROGEN FRACTIONS IN MUSCLES OF MIGRATING SOCKEYE SALMON

1958 ◽  
Vol 36 (1) ◽  
pp. 799-803 ◽  
Author(s):  
D. W. Duncan ◽  
H. L. A. Tarr
Keyword(s):  
Nitrogen Content ◽  
Sockeye Salmon ◽  
Protein Fractions ◽  
Spawning Migration ◽  
Female Fish ◽  
Protein Nitrogen ◽  
Nitrogen Fractions ◽  
Biochemical Studies ◽  
Migratory Route ◽  
Total Muscle

The nitrogen content of three protein fractions and one non-protein nitrogen fraction of muscles of migrating sockeye salmon was determined at three points on the migratory route. The results have been expressed as milligrams of nitrogen per 100 g. of muscle, as per cent of the total muscle nitrogen, and as grams of nitrogen per average (standard) male or female fish.

BIOCHEMICAL STUDIES ON SOCKEYE SALMON DURING SPAWNING MIGRATION: XII. LIVER GLYCOGEN

1960 ◽  
Vol 38 (1) ◽  
pp. 553-558 ◽  
Author(s):  
Violet M. Chang ◽  
D. R. Idler
Keyword(s):  
Sex Differences ◽  
Sockeye Salmon ◽  
Glycogen Content ◽  
Steroid Hormone ◽  
Liver Glycogen ◽  
Spawning Migration ◽  
Energy Expenditures ◽  
Liver Glycogen Content ◽  
Biochemical Studies ◽  
River Migration

Liver glycogen levels were determined for a pure stock of sockeye salmon (Oncorhynchus nerka) taken at three locations during spawning migration. The liver glycogen content of the male was found to be consistently greater than that of the female throughout the entire river migration. In both sexes liver glycogen decreased during the earlier phase of migration, but increased during the later stage so that the levels at the spawning grounds were approximately twice those at the mouth of the river. The changes which occur are discussed in relation to sex differences, energy expenditures, and plasma steroid hormone levels.

Biochemical Studies on Sockeye Salmon During Spawning Migration: VI. Ribonucleic Acid and Deoxyribonucleic Acid

1959 ◽  
Vol 16 (4) ◽  
pp. 421-428 ◽  
Author(s):  
Vera M. Creelman ◽  
Neil Tomlinson
Keyword(s):  
Ribonucleic Acid ◽  
Sockeye Salmon ◽  
Alimentary Tract ◽  
Deoxyribonucleic Acid ◽  
Spawning Migration ◽  
Biochemical Studies

The quantity of ribonucleic acid phosphorus (RNA-P) and deoxyribonucleic acid phosphorus (DNA-P) in various tissues of the sockeye salmon has been determined at three points in its spawning migration. During migration a net decrease in RNA-P and a net increase in DNA-P occurred in the whole fish of both sexes. Major losses in RNA-P occurred in the flesh, alimentary tract and milt, while major gains in DNA-P occurred in the milt and roe. In the combined head, skin, bones and tail large gains in both RNA-P and DNA-P took place.

Sign in / Sign up

Export Citation Format

Share Document