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The aim of this study was to determine the impact of sex on the content of β-carotene, lutein, astaxanthin, canthaxanthin, zeaxanthin, and total carotenoids in the skin, muscles, and livers of whitefish (Coregonus lavaretus lavaretus (L.)). Fish samples for assays were collected from Lake Łebsko. There is a whitefish conservation program in Lake Łebsko. The results show that males are more carotenoid...
The study was carried out in the winter of 1999/2000 at the fishing base of the Olsztyn Fishing Farm. The base was comprised of 48 fish cages (15 m³ each) suspended in a post-cooling water canal of the Ostrołęka thermal-electric power station. During the 190 days of observations (31 October 1999 - 15 May 2000), the following factors were analysed: bacteriological contamination of skin, muscle and...
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