Metabolism of fatty acids in the southern elephant seal Mirounga leonina (L.)

1969 ◽  
Vol 47 (8) ◽  
pp. 757-760 ◽  
Author(s):  
M. M. Bryden ◽  
G. B. Stokes
Keyword(s):  
Fatty Acids ◽  
Liquid Chromatography ◽  
Marine Mammals ◽  
Elephant Seal ◽  
Southern Elephant Seal ◽  
Gas Liquid Chromatography ◽  
Mirounga Leonina ◽  
Polyunsaturated Acids ◽  
Long Chain

In general, the composition of the blubber of the southern elephant seal, determined by gas–liquid chromatography, is similar to that of other marine mammals. In this regard, the present work disagrees with an earlier study made on an individual of this species. The marked disappearance of the long-chain polyunsaturated acids in both the nursing cow and fasting pup suggests catabolism of these acids during nonfeeding periods. Support is given here for the contention that some fatty acids are transferred intact from the depot fat of the seal cow to her pup via the milk.

THE INFLUENCE OF DIETARY FAT ON THE FATTY ACID COMPOSITION OF LIVER, CARCASS, AND MILK OF RATS

1961 ◽  
Vol 39 (12) ◽  
pp. 1855-1863 ◽  
Author(s):  
Joyce L. Beare
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Liquid Chromatography ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Dietary Fat ◽  
Rapeseed Oil ◽  
Corn Oil ◽  
Gas Liquid Chromatography ◽  
Long Chain

Fatty acids of liver, carcass, and milk of rats fed corn oil, rapeseed oil, partially hydrogenated herring oil, or margarine were examined by gas–liquid chromatography. Appreciable quantities of linoleic acid were maintained in the tissues and milk, even when the hydrogenated herring oil with a low level of linoleic acid was fed. The proportion of C20and C22acids deposited or secreted was related to that of the diet, and was highest with rapeseed oil. In the livers of rats fed each diet, long-chain, polyunsaturated acids were observed. The fatty acids of milk more closely reflected the dietary pattern than did those of the tissues.

Analysis of Long-Chain Fatty Acids by Gas-Liquid Chromatography

1959 ◽  
Vol 31 (2) ◽  
pp. 307-308 ◽  
Author(s):  
Wilhelm. Stoffel ◽  
Florence. Chu ◽  
E. H. Ahrens
Keyword(s):  
Fatty Acids ◽  
Liquid Chromatography ◽  
Gas Liquid Chromatography ◽  
Long Chain Fatty Acids ◽  
Long Chain ◽  
Chain Fatty Acids

Indications of contagious behaviours in the southern elephant seal: an observational study

Behaviour ◽  
2019 ◽  
Vol 156 (1) ◽  
pp. 59-77 ◽  
Author(s):  
K. Wojczulanis-Jakubas ◽  
J. Plenzler ◽  
D. Jakubas
Keyword(s):  
Observational Study ◽  
Social Life ◽  
Marine Mammals ◽  
Social Groups ◽  
Group Living ◽  
Elephant Seal ◽  
Southern Elephant Seal ◽  
Mirounga Leonina ◽  
The Social ◽  
Southern Elephant Seals

Abstract Behavioural contagion is a curious phenomenon of human social life which is believed to facilitate group living. It has also been demonstrated in animals that some behaviours may be contagious: how widespread this phenomenon is remains unclear, as only a few species have been tested. In this context, we examined whether three behaviours commonly exhibited by moulting southern elephant seals (Mirounga leonina): “sneezing”, scratching and yawning could be contagious. Using the randomization approach, we found this to be the case in general for all the behaviours, although the pattern was not that obvious or present at all for all the social groups. This indicates there is a potential for social contagion but the issue is complex. Despite limitations associated with observational study on small-size social groups, this is the first report of contagious behaviours in marine mammals and is to encourage further investigation.

scholarly journals Detection and Characterization of aCryptosporidiumIsolate from a Southern Elephant Seal (Mirounga leonina) from the Antarctic Peninsula

2010 ◽  
Vol 77 (4) ◽  
pp. 1524-1527 ◽  
Author(s):  
C. Rengifo-Herrera ◽  
L. M. Ortega-Mora ◽  
M. Gómez-Bautista ◽  
F. T. García-Moreno ◽  
D. García-Párraga ◽  
...  
Keyword(s):  
Antarctic Peninsula ◽  
Marine Mammals ◽  
Immunofluorescence Microscopy ◽  
Elephant Seal ◽  
Southern Elephant Seal ◽  
Mirounga Leonina ◽  
Fecal Samples ◽  
Antarctic Marine ◽  
The Antarctic

ABSTRACTThe presence ofCryptosporidiumandGiardiain 221 fecal samples from different species of Antarctic pinnipeds was investigated by immunofluorescence microscopy and PCR.Cryptosporidium, a skunk-like genotype, was detected only in a southern elephant seal.Giardiawas not detected. This is the first report of aCryptosporidiumsp. in Antarctic marine mammals.

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