Foraging ecology of ice seals in Kotzebue Sound, Alaska: Insights from fatty acid markers

2015 ◽  
Vol 32 (2) ◽  
pp. 765-776 ◽  
Author(s):  
Shiway W. Wang ◽  
Kathryn J. Frost ◽  
Alex V. Whiting
Keyword(s):  
Fatty Acid ◽  
Foraging Ecology ◽  
Kotzebue Sound ◽  
Fatty Acid Markers

scholarly journals Stable isotope and fatty acid markers in plankton assemblages of a saline lake: seasonal trends and future scenario

2015 ◽  
Vol 37 (3) ◽  
pp. 584-595 ◽  
Author(s):  
Germán A. Kopprio ◽  
Rubén J. Lara ◽  
Ana Martínez ◽  
Anna Fricke ◽  
Martin Graeve ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Stable Isotope ◽  
Saline Lake ◽  
Future Scenario ◽  
Seasonal Trends ◽  
Fatty Acid Markers

Fatty Acid—Markers as Foodweb Tracers in Inland Waters

2021 ◽  
Author(s):  
Olesia N. Makhutova ◽  
Nadezhda N. Sushchik ◽  
Michail I. Gladyshev
Keyword(s):  
Fatty Acid ◽  
Inland Waters ◽  
Fatty Acid Markers

scholarly journals Rapid UPLC-MS/MS method for routine analysis of plasma pristanic, phytanic, and very long chain fatty acid markers of peroxisomal disorders

2008 ◽  
Vol 49 (8) ◽  
pp. 1855-1862 ◽  
Author(s):  
Osama Y. Al-Dirbashi ◽  
Tomofumi Santa ◽  
Mohamed S. Rashed ◽  
Zuhair Al-Hassnan ◽  
Nobuyuki Shimozawa ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Chain Fatty Acid ◽  
Routine Analysis ◽  
Peroxisomal Disorders ◽  
Long Chain Fatty Acid ◽  
Long Chain ◽  
Fatty Acid Markers

Fatty acid signatures and classification trees: new tools for investigating the foraging ecology of seals

1997 ◽  
Vol 54 (6) ◽  
pp. 1377-1386 ◽  
Author(s):  
Stephen J Smith ◽  
Sara J Iverson ◽  
W D Bowen
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Marine Mammals ◽  
Foraging Ecology ◽  
A Priori ◽  
Classification Trees ◽  
Multivariate Statistical ◽  
Lactation Stage

Analysis of the fatty acid composition of milk lipids in marine mammals offers a potential means of determining changes in diet and lactation stage. However, the large number of fatty acids routinely identified (over 60) relative to the number of animals usually sampled can limit the usefulness of standard multivariate statistical models for characterizing these patterns. Classification trees or tree-based models, which are not limited by the number of variables, were used here to study the fatty acid patterns in the milk of female harbour seals (Phoca vitulina) at parturition and during lactation. Tree analyses correctly classified 44 of 51 seals based on milk fatty acid composition to four stages of lactation, which corresponded to states of fasting versus increasingly intensive feeding. The fatty acid 16:2n-6 was quite effective in differentiating between seals at parturition and those 4 days or more later. Seals were grouped into early and late lactation by fatty acid 24:1n-9. A comparison between classification rules derived from classification trees and discriminant analysis showed that each gave similar rates of misclassification but that the latter required a method for the a priori choice of which fatty acids to analyze.

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