Distinguishing between Different Populations of Harp Seal (Phoca groenlandica) by Chemometry of the Fatty Acid Profiles in the Jaw Bone

1993 ◽  
Vol 50 (7) ◽  
pp. 1400-1404 ◽  
Author(s):  
Otto Grahl-Nielsen ◽  
Olav Mjaavatten ◽  
Einar Tvedt
Keyword(s):  
Fatty Acid ◽  
Barents Sea ◽  
Principal Component ◽  
Eye Lens ◽  
Fatty Acid Profiles ◽  
Phoca Groenlandica ◽  
The Barents Sea ◽  
Different Populations ◽  
The Difference ◽  
Two Populations

The relative amounts of various fatty acids of jawbone and eye lens were determined in harp seals (Phoca groenlandica) caught in the Greenland Sea and in the Barents Sea. The two tissues had distinctly different profiles. The fatty acid profile in the lens tissue changed with age. Principal component analysis of the data showed that the profiles in the jawbone were different in seals from the two populations, while the difference was much less prominent in the case of the eye lens. Using the jawbone profiles from the western and eastern seals as reference, it was shown that seven seals, caught in west coast seine nets during the large invasion of harp seals along the Norwegian coast in the winter of 1986–87, had come from the eastern population.

scholarly journals Chemometric Approach to Fatty Acid Profiles in Soybean Cultivars by Principal Component Analysis (PCA)

2012 ◽  
Vol 17 (3) ◽  
pp. 184-191 ◽  
Author(s):  
Eui-Cheol Shin ◽  
Chung-Eun Hwang ◽  
Byong-Won Lee ◽  
Hyun-Tae Kim ◽  
Jong-Min Ko ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Fatty Acid ◽  
Principal Component ◽  
Component Analysis ◽  
Fatty Acid Profiles ◽  
Soybean Cultivars ◽  
Chemometric Approach

scholarly journals Comparison of shortest sailing distance through random and regular sampling points

2004 ◽  
Vol 61 (1) ◽  
pp. 140-147 ◽  
Author(s):  
Alf Harbitz ◽  
Michael Pennington
Keyword(s):  
Random Sampling ◽  
Minimum Distance ◽  
Barents Sea ◽  
Pandalus Borealis ◽  
The Barents Sea ◽  
Theoretical Sampling ◽  
Sampling Points ◽  
Regular Sampling ◽  
The Mean ◽  
The Difference

Abstract The shortest sailing distance through n sampling points is calculated for simple theoretical sampling domains (square and circle) as well as for a rather irregular and concavely shaped real sampling domain in the Barents Sea. The sampling sites are either located at the nodes of a square grid (regular sampling) or they are randomly distributed. For n less than ten, the exact shortest sailing distance is derived. For larger n, a traveling salesman algorithm (simulated annealing) was applied, and its bias (distance from true minimum) was estimated based on a case where the true minimum distance was known. In general, the average minimum sailing distance based on random sampling was considerably shorter than for regular sampling, and the difference increased with sample size until an asymptotic value was reached at about n=60 for a square domain. For the sampling domain in the Barents Sea used for shrimp (Pandalus borealis) abundance surveys (n=118 stations), the cruise-track lengths based on random sampling were approximately normally distributed. The mean sailing distance was 18% shorter than the cruise track for regular sampling and the standard deviation equalled 2.6%.

scholarly journals Polymorphic effects of FABP4 and SCD genes on intramuscular fatty acid profiles in longissimus muscle from two cattle breeds

2015 ◽  
Vol 84 (4) ◽  
pp. 327-336 ◽  
Author(s):  
Radka Dujková ◽  
Yuvaraj Ranganathan ◽  
Aleš Dufek ◽  
Jan Macák ◽  
Jiří Bezdíček
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Principal Component ◽  
Potential Candidate ◽  
Longissimus Muscle ◽  
Fatty Acid Profiles ◽  
Total N ◽  
Fatty Acid Binding ◽  
Cattle Breeds

The aim of this study was to evaluate the polymorphic effects of two single nucleotide polymorphisms (SNPs) of fatty acid binding protein (FABP4) and stearoyl-CoA desaturase (SCD) genes on intramuscular fatty acid profiles in the longissimus muscle in two cattle breeds. Two previously reported SNPs of bovine FABP4 (7516G>C) and SCD (878C>T) were in turn assessed for their associations with intramuscular fatty acid profiles from the upper sirloin cuts of Aberdeen Angus and Blonde d’Aquitaine cattle. In total, 33 animals were genotyped using PCR-RFLP. Intramuscular fatty acid composition was evaluated using two complementary statistical approaches: a classical univariate regression model and a multivariate approach using a combination of Principal Component Analysis and Random Forests. Significant effect of FABP4 SNP genotypes was found for several fatty acids including C15:0, C17:0, C18:0, C14:1, C17:1, C18:2n6, C20:4n6, C20:5n3, C22:5n3, total n-3, n-6 and total SFA (P < 0.05). These results suggest that FABP4 is a potential candidate gene affecting fatty acid composition in beef cattle.

scholarly journals Seasonal distribution of harp seals (Phoca groenlandica) in the Barents Sea

1994 ◽  
Vol 13 (2) ◽  
pp. 163-172 ◽  
Author(s):  
Tore Haug ◽  
Kjell Tormod Nilssen ◽  
Nils Øien ◽  
Vladimir Potelov
Keyword(s):  
Barents Sea ◽  
Seasonal Distribution ◽  
Phoca Groenlandica ◽  
The Barents Sea

scholarly journals Indication Géographique De L’huile De Palme De “Man’’ (District Des Montagnes-Côte d’Ivoire) : Une Analyse Comparative Des Propriétés PhysicoChimiques Et Profils En Acides Gras De Quelques Huiles De Palme Rouge Artisanales Ivoiriennes

2017 ◽  
Vol 13 (18) ◽  
pp. 373
Author(s):  
N’Goran David Vincent Kouakou ◽  
Kouakou Amos Kouassi ◽  
Cho Euphrasie Monique Angbo-Kouakou ◽  
Diane Yéléhi Ahongo ◽  
Pohé Jean ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Principal Component ◽  
Geographical Indication ◽  
Fatty Acid Profiles ◽  
High Iodine ◽  
Know How ◽  
Local Product ◽  
International Reputation ◽  
Analyse Comparative ◽  
De Man

Artisanal crude palm oil (ACPO) of “Man’’ (District des Montagnes, Ivory Coast) enjoys a national and international reputation for quality among consumers. In order to record this local product as a geographical indication product, a study aimed to compare the physicochemical parameters and fatty acid profiles of some ACPO samples from the “Dura” variety collected in the districts of Lagunes, Sassandra-Marahoué, Bas-Sassandra and Montagnes, was conducted. It shows that the samples collected in the District des Montagnes have a low density (0.949±0.018 g/ml), a high iodine value (63.9±0.5 g of iodine/100 g of fat) and a low peroxide value (1.2±0.2 meqO 2 / kg of fat), a slightly high pH (3.1±0.3) than those in other districts. Furthermore, these samples exhibit the lowest levels of saturated fatty acid (34.8%). The principal component analysis performed on all parameters studied, shows that the samples are of ACPO from "Man" have a more uniform profile, a symbol of a common ancestral know-how and that its deserves a Geographical Indication

Sign in / Sign up

Export Citation Format

Share Document