The short-term effects of farmed fish food consumed by wild fish congregating outside the farms.

Autor: Gonzalez-Silvera D; Department of Physiology, Faculty of Biology, Campus Regional de Excelencia Internacional 'Campus Mare Nostrum', University of Murcia, 30100 Murcia, Spain. Electronic address: danielgs@um.es., Guardiola FA; Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional 'Campus Mare Nostrum', University of Murcia, 30100 Murcia, Spain., Cordero H; Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional 'Campus Mare Nostrum', University of Murcia, 30100 Murcia, Spain., Cuesta A; Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional 'Campus Mare Nostrum', University of Murcia, 30100 Murcia, Spain., Esteban MA; Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional 'Campus Mare Nostrum', University of Murcia, 30100 Murcia, Spain., Martínez-López FJ; Department of Physiology, Faculty of Biology, Campus Regional de Excelencia Internacional 'Campus Mare Nostrum', University of Murcia, 30100 Murcia, Spain., López-Jiménez JA; Department of Physiology, Faculty of Biology, Campus Regional de Excelencia Internacional 'Campus Mare Nostrum', University of Murcia, 30100 Murcia, Spain.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2017 Jan 30; Vol. 114 (2), pp. 689-698. Date of Electronic Publication: 2016 Oct 27.
DOI: 10.1016/j.marpolbul.2016.10.055
Abstrakt: We simulated in the laboratory the possible effects on fatty acids and immune status of wild fish arriving for the first time in the vicinity of a sea-cage fish farm, shifting their natural diet to commercial feed consumption, rich in fatty acids of vegetable origin. The flesh fatty acid profile of golden mullet specimens was altered after 2weeks of commercial feed consumption, showing an increase in fatty acids of vegetable origin. The serum peroxidase and bactericidal activities, and head-kidney leucocyte phagocytic capacity, increased after eight weeks of the new diet, while the respiratory burst activity decreased. The extent of these changes cannot be considered large enough to regard them as compromising the health status of fish. More research is needed in order to elucidate whether the rapid assimilation of the dietary fatty acids could harm the immune status of fish when feeding for longer periods than two months.
(Copyright © 2016 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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