scholarly journals Seasonal variations in the lipid and fatty acid composition of the euphausiid Meganyctiphanes norvegica from the Ligurian Sea

1999 ◽  
Vol 186 ◽  
pp. 199-210 ◽  
Author(s):  
P Mayzaud ◽  
P Virtue ◽  
E Albessard
2000 ◽  
Vol 57 (S3) ◽  
pp. 91-103 ◽  
Author(s):  
P Mayzaud ◽  
E Albessard ◽  
P Virtue ◽  
M Boutoute

Antarctic (Euphausia superba) and northern krill (Meganyctiphanes norvegica) are characterised by large-scale spatial distributions. Euphausia superba is limited to the Southern Ocean, while M. norvegica is present from the Arctic Ocean to the Mediterranean Sea. Euphausia superba structural lipids showed little mesoscale variability. Specific differences between phosphatidylcholine and phosphatidylethanolamine fatty acid composition exceeded variability related to sampling stations. On a larger scale (Southern Ocean), fatty acid composition of both total polar lipids and phosphatidylcholine confirmed the reduced level of regional variability. Similar comparisons between female M. norvegica collected at two extreme sites in terms of temperature regime (Kattegat and Ligurian Sea) during two seasons (spring-summer and fall-winter) suggested a more complex picture. Levels of phosphatidylethanolamine, lysophosphatidylcholine, and diphosphatidylglycerol showed significant differences between sites. During spring- summer, a lower content of phosphatidylethanolamine and lysophosphatidylcholine was observed for the Ligurian Sea population. Fatty acid composition of total polar lipids was significantly different at both sites. Comparisons between spring-summer populations at both sites showed higher percentages of 22:6n-3 and a lower content in saturated and monoenoic acids for the Ligurian Sea, suggesting some degree of adaptation to temperature regime.


1973 ◽  
Vol 40 (2) ◽  
pp. 207-214 ◽  
Author(s):  
I. K. Gray

SummaryThe fatty-acid composition of 17 samples of New Zealand milk fat obtained throughout one dairy season is reported.The weight percentage of butyric (C4:0) acid was significantly correlated with that of caproic (C6:0) acid and that of caprylic (C8:0) acid. Percentages of C6:0and C8:0showed a highly significant correlation with each other and with weight percentages of capric (C10:0) and lauric (C12:0) acids.There was a highly significant negative correlation between palmitic (C16:0) and stearic (C18:0) acids and between C4:0and C16:0acids. Oleic (C18:1) acid showed significant negative correlations with C8:0, C10:0, C12:0, myristic (C14:0) and C16:0acids.


2008 ◽  
Vol 78 (1-3) ◽  
pp. 56-65 ◽  
Author(s):  
B. Meľuchová ◽  
J. Blaško ◽  
R. Kubinec ◽  
R. Górová ◽  
J. Dubravská ◽  
...  

2011 ◽  
Vol 20 (2) ◽  
pp. 233-246 ◽  
Author(s):  
Mohamed Kacem ◽  
Mohamed Sellami ◽  
Wassim Kammoun ◽  
Fakher Frikha ◽  
Nabil Miled ◽  
...  

Meat Science ◽  
2017 ◽  
Vol 134 ◽  
pp. 158-162 ◽  
Author(s):  
G. Papadomichelakis ◽  
E. Zoidis ◽  
A.C. Pappas ◽  
I. Hadjigeorgiou

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