Incorporation of dietary carotenoids into the fins of yellow- and red-finned Eurasian perch Perca fluviatilis

Eckmann, Reiner; Krammel, Romy; Spiteller, Dieter

Incorporation of dietary carotenoids into the fins of yellow- and red-finned Eurasian perch Perca fluviatilis

Dateien

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Datum

2017

Autor:innen

Eckmann, Reiner

Krammel, Romy

Spiteller, Dieter

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Biologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Limnologica. 2017, 63, pp. 31-35. ISSN 0075-9511. eISSN 1873-5851. Available under: doi: 10.1016/j.limno.2016.12.001

Zusammenfassung

The colour of the ventral, anal and caudal fins of Eurasian perch can range from pale yellow to intensered. Within spatially separated populations, however, individuals are usually very uniform in colour.We fed astaxanthin- and canthaxanthin-enriched dry feed to juvenile perch from a yellow-finned and ared-finned population to compare the influence of dietary carotenoids on fin colour between these twopopulations. In this way we wanted to test whether fin colour in perch is predominantly a phenotypicallyplastic trait or whether differently coloured individuals represent colour morphs. The ventral fins of perchfrom the red-finned population always exhibited significantly more intense redness when their feed wassupplemented with either one or both carotenoid additives. Perch from both populations deposited morecanthaxanthin in their ventral fins than astaxanthin, red-finned perch in particular. Yellow-finned perchprobably converted canthaxanthin into -carotene, which was the dominant carotenoid in their ventralfins, whereas the fins of red-finned perch contained only trace amounts of -carotene. We conclude thatthese two populations represent colour morphs that differ fundamentally in their ability to metaboliseand deposit dietary carotenoids into their ventral fins. Considering the multiple physiological functionsof carotenoids, these fundamental differences in carotenoid metabolism between perch colour morphsmay have far-reaching consequences for the performance of different populations, for example in theirresponse to parasite infections.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

Astaxanthin, Canthaxanthin, Fin colour, HPLC analysis, Redness intensity

Zitieren

ISO 690

ECKMANN, Reiner, Romy KRAMMEL, Dieter SPITELLER, 2017. Incorporation of dietary carotenoids into the fins of yellow- and red-finned Eurasian perch Perca fluviatilis. In: Limnologica. 2017, 63, pp. 31-35. ISSN 0075-9511. eISSN 1873-5851. Available under: doi: 10.1016/j.limno.2016.12.001

BibTex

@article{Eckmann2017Incor-37293,
  year={2017},
  doi={10.1016/j.limno.2016.12.001},
  title={Incorporation of dietary carotenoids into the fins of yellow- and red-finned Eurasian perch Perca fluviatilis},
  volume={63},
  issn={0075-9511},
  journal={Limnologica},
  pages={31--35},
  author={Eckmann, Reiner and Krammel, Romy and Spiteller, Dieter}
}

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    <dcterms:abstract xml:lang="eng">The colour of the ventral, anal and caudal fins of Eurasian perch can range from pale yellow to intensered. Within spatially separated populations, however, individuals are usually very uniform in colour.We fed astaxanthin- and canthaxanthin-enriched dry feed to juvenile perch from a yellow-finned and ared-finned population to compare the influence of dietary carotenoids on fin colour between these twopopulations. In this way we wanted to test whether fin colour in perch is predominantly a phenotypicallyplastic trait or whether differently coloured individuals represent colour morphs. The ventral fins of perchfrom the red-finned population always exhibited significantly more intense redness when their feed wassupplemented with either one or both carotenoid additives. Perch from both populations deposited morecanthaxanthin in their ventral fins than astaxanthin, red-finned perch in particular. Yellow-finned perchprobably converted canthaxanthin into  -carotene, which was the dominant carotenoid in their ventralfins, whereas the fins of red-finned perch contained only trace amounts of  -carotene. We conclude thatthese two populations represent colour morphs that differ fundamentally in their ability to metaboliseand deposit dietary carotenoids into their ventral fins. Considering the multiple physiological functionsof carotenoids, these fundamental differences in carotenoid metabolism between perch colour morphsmay have far-reaching consequences for the performance of different populations, for example in theirresponse to parasite infections.</dcterms:abstract>
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