Discrimination of Striped Bass Stocks: A New Method Based on Chemometry of the Fatty Acid Profile in Heart Tissue

Grahl‐Nielsen, Otto; Mjaavatten, Olav

doi:10.1577/1548-8659(1992)121<0307:dosbsa>2.3.co;2

Cited by 23 publications

(8 citation statements)

References 19 publications

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“…However, the problem is to identify the biochemical components liable to vary according to the prevailing environmental conditions. Fatty acid profiles have been successfully used to discriminate among: (1) fish eggs of different age and species (Ulvund & Grahl-Nielsen 1988); (2) fish stocks (Grahl-Nielsen & Mjvaatten 1992); and (3) larvae with different diets (Navarro et al 1995).…”

Section: Introductionmentioning

confidence: 99%

Egg and larval amino acid composition as indicators of niche resource partitioning in pelagic fish species

Riveiro¹,

Guisande²,

Franco³

et al. 2003

Mar. Ecol. Prog. Ser.

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We analysed the amino acid composition (AA) of eggs and larvae of the pelagic fish species Sardina pilchardus (sardine), Scomber scombrus (mackerel), Trachurus trachurus (horse mackerel) and Micromesistius poutasou (blue whiting) collected along the west Atlantic coast of Spain and from the Cantabrian Sea during March to April 2000. A discriminant analysis showed that it was possible to distinguish each fish species according to the egg and larval AA. Moreover, egg and larval AA varied among different areas within each fish species. From the data of larval abundance obtained from 5 cruises carried out along the northern Spanish coast from 1995 to 2000 (Mph-1995, Sefos-1995, Careva-1998, Jureva-1998 and Seamar-2000, the temporal and spatial overlap among fish species was estimated. There was a significant relationship between larval AA similarity and larval spatial-temporal overlap among fish species, which means that those larval species that had greater spatial and temporal overlap, had a similar larval AA. On this basis, the differences in egg and larval AA within each fish species among different areas seem to be due to differences in habitat conditions; mainly temperature, salinity, and food quality and quantity. We concluded that egg and larval AA could be used as indicators of niche resource partitioning (food resources and spatial allocation) among pelagic fish species.KEY WORDS: Fish · Egg · Larvae · Amino acid · Niche · PopulationResale or republication not permitted without written consent of the publisher

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Section: Introductionmentioning

confidence: 99%

Egg and larval amino acid composition as indicators of niche resource partitioning in pelagic fish species

Riveiro¹,

Guisande²,

Franco³

et al. 2003

Mar. Ecol. Prog. Ser.

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“…this analysis was performed with only five of the six fatty acids that showed significant differences among areas in the univariate tests (i.e., F > 6.9, df = 2, 22). The discriminant analysis used here is more straightforward than the complex manipulations of principal component analysis employed for a similar purpose by Grahl-Nielsen and Ulvund (1992) and Grahl-Nielsen and Mjaavatten (1992), though the final result should be little different.…”

Section: Statistical Analysesmentioning

confidence: 98%

“…Other unusual fatty acids, not synthesized by most fish or crustaceans, occur in marine lipids as unique and distinctive food web markers (Paadis and Ackman 1976Ackman , 1977Ratnayake et al 1989). A new approach to analyses of such data was used by GrahlNielsen and LTlvund (1992) and Grahl-Nielsen and Mjaavatten (1992) to distinguish among different stocks of herring (Clupea harengus) and striped bass (Morone saxafili~) by their fatty acid composition. Although the differences between individual means for any one fatty acid were not significant among the stocks of each fish because of the relatively large standard deviations, they were able to determine significantly different profiles of 13 selected fatty acids using multivariate analyses.…”

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confidence: 99%

The potential identification of the geographic origin of lobster eggs from various wild stocks based on fatty acid composition

Castell¹,

Boston²,

Miller³

et al. 1995

Can. J. Fish. Aquat. Sci.

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The fatty acids of lipids from eggs of five lobsters (Hosnarus americaneas) collected at Brown's Bank (offshore), Lobster Bay (near shore), and Hunt's Point (near shore) were analyzed to determine whether compositional patterns might be used to distinguish offshore from nearshore lobsters. Offshore samples had a higher content of monoenoic fatty acids, lower levels of 269:5n-3 and higher levels of 22:6n-3 than near-shore samples. All Hunt's Point samples contained about twice as much 20:4n-6 (4.81 +-1.48%) as samples from other locations (2.85 & 0.53% and 2.85 + 49.75% for Lobster Bay and Brown's Bank, respectively). Similarly, the total percentages sf 82-6 fatty acids of Hunt's Point lobster eggs were significantly higher than samples from the other two locations (8.13 + 1.31% vs. 4.28 & 0.49% and 5.11 + 1.08%). The content of 18: 182-9, 20: l n -5, 28:2n-6, 20:4n -6 and 2 1 :5n -3 differed significantly among subsamples from different geographic locations. Only with 21:5n--3 was there no overlap in the percentage content between Lobster Bay lobsters and lobsters from the other two locations. Although no fatty acid was specific enough to distinguish eggs from any one location, discriminant analysis of fatty acids proved effective in identifying offshore from near-shore lobsters.

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“…In addition to the nutritional and biological importance of certain FAs, the FA profiles of fish tissues have been used as an alternative method of species and stock identification through chemometric techniques (Grahl-Nielsen and Mjaavatten 1992). The total lipid compositions and FA profiles of fish can vary according to several factors, such as the fishing season, geographical location, size and sex of the fish and period of the reproductive cycle (Luzia et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Chemometric identification and nutritional evaluation of three species of Lutjanidae (Perciformes) from the Amazonian Atlantic Coast based on fatty acid profiles

Almeida

Silva

2016

Acta Amaz.

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The fatty acid (FA) profiles of fish species with a similar genetic or geographic origin are important quality parameters that attract bioecological interest because they are influenced by the nutritional habits of the species. The aim of this study was to determine the proximate compositions and FA profiles of heart, brain and muscle tissues from three fish species (Lutjanus purpureus, Lutjanus synagris and Ocyurus chrysurus) captured from the Amazonian Atlantic Coast. In addition to performing nutritional analysis of the FA profiles, principal components analysis (PCA) was performed as a chemometric tool to discriminate among the species. Lutjanus synagris had the highest protein content (18.23%), while O. chrysurus possessed the highest lipid content (4.25%). All of the nutritional quality parameters (the n-6/n-3 and Σ polyunsaturated FA/Σ saturated FA ratios and dietary indices of atherogenicity and thrombogenicity) of the FA profiles of the three species are of interest to consumers. In general, the predominant FA in the tissues of all species analyzed was palmitic acid, followed by stearic acid. Oleic acid was predominant among the monounsaturated FAs, while docosahexaenoic acid was the most prevalent polyunsaturated FA. Chemometric analysis was an effective tool for fish identification. PCA showed that the FA profiles of the brain tissues were optimal for discriminating among the species, with O. chrysurus showing the most different FA profile from the others. The muscle FA profile was the most useful for identifying L. purpureus. KEYWORDS: Multivariate analysis, Gas chromatography, Lutjanus purpureus, Lutjanus synagris, Ocyurus chrysurusIdentificação quimiométrica e avaliação nutricional de três espécies de Lutjanidae (Perciformes) da Costa Atlântica Amazônica com base no perfil de ácidos graxos RESUMO Perfis de ácidos graxos (AGs) de espécies de peixes com uma origem genética ou geográfica semelhante são importantes parâmetros de qualidade e apresentam interesse bioecológico, uma vez que são influenciados pelos hábitos nutricionais das espécies. O objetivo deste estudo foi determinar a composição centesimal e os perfis de AGs do coração, cérebro e músculo de três espécies de peixes (Lutjanus purpureus, Lutjanus synagris e Ocyurus chrysurus) capturados na Costa Atlântica Amazônica. Além de fornecer uma análise nutricional dos perfis de AGs, uma análise de componentes principais (ACP) foi realizada como uma ferramenta quimiométrica para discriminar entre as espécies. Lutjanus synagris teve o maior teor de proteína (18,23%), enquanto O. chrysurus apresentou a maior concentração de lipídios (4,25%). Todos os parâmetros de qualidade nutricional (as proporções de n-6/n-3 e ΣPUFAs/ΣSFAs, e os índices dietéticos de aterogenicidade e trombogenicidade) dos perfis de AGs nas três espécies se mostraram de interesse para os consumidores. Em geral, o AGs predominante nos tecidos de todas as espécies analisadas foi o ácido palmítico, seguido pelo ácido esteárico. O ácido oléico foi predominante entre os AGs mo...

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Discrimination of Striped Bass Stocks: A New Method Based on Chemometry of the Fatty Acid Profile in Heart Tissue

Cited by 23 publications

References 19 publications

Egg and larval amino acid composition as indicators of niche resource partitioning in pelagic fish species

Egg and larval amino acid composition as indicators of niche resource partitioning in pelagic fish species

The potential identification of the geographic origin of lobster eggs from various wild stocks based on fatty acid composition

Chemometric identification and nutritional evaluation of three species of Lutjanidae (Perciformes) from the Amazonian Atlantic Coast based on fatty acid profiles

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