What are the most effective biotic and abiotic factors affecting fatty acid composition of Garra rufa (Heckel, 1843)?

N. Şen Özdemir

doi:10.3989/gya.0224221

Autores/as

N. Şen Özdemir Department of Veterinary Medicine, Vocational School of Food, Agriculture and Livestock, Bingöl University https://orcid.org/0000-0001-6656-822X

DOI:

https://doi.org/10.3989/gya.0224221

Palabras clave:

Ácidos grasos dietéticos, DHA, EPA, Garra rufa, 18:1ω9

Resumen

Se recolectaron especímenes de Garra rufa (pez doctor) de un río cálido y un arroyo frío en la provincia de Bingöl, Turquía, mensualmente durante un año. Se investigaron los efectos del mes, la estación, el género y la ubicación en la composición de ácidos grasos musculares y el contenido de lípidos y se utilizaron los ácidos grasos como marcadores dietéticos para obtener preferencias dietéticas en diferentes lugares (Ilıcalar, Garip) y períodos. El cambio total de lípidos fue estacionalmente significativo (ANOSIM-R=0,49) en ambos lugares y 18:1ω9, 20:5ω3 y 20:6ω3 fueron los ácidos grasos dietéticos más abundantes. Aunque G. rufa son predominantemente herbívoros, también pueden alimentarse de forma omnívora con dietas mixtas según la presencia o ausencia de la dieta principal. El efecto de las estaciones fue significativo en la composición de ácidos grasos independientemente de las localizaciones (P_perm=0.001). Los cambios estacionales significativos en todas las composiciones de ácidos grasos podrían atribuirse a los cambios en la abundancia y diversidad de las fuentes dietéticas en el medio ambiente debido al efecto de la temperatura.

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