Evaluating the Bioremediation Capacity of the Polychaete Perinereis gualpensis (Jeldes, 1963) for Atlantic Salmon Aquaculture Sludge

The potential of polychaetes for the bioremediation aquaculture sludge gained more attention in recent years. These organisms can reduce organic matter and nutrients contained several species, improving sustainability these activities. aim this study was to evaluate removal performance Perinereis gualpensis (Jeldes, 1963) being fed with produced by a recirculating system cultivating Atlantic salmon. experiment involved adding different amounts (10% 20% respect total substrate) at density 300 m−2 during 30 days. A treatment without served as control, using natural substrate. highest rate (TOM) (23.95 ± 13.19 g day−1) achieved P. addition, reduction about 36% compared amount added beginning trials. presented higher nitrogen (8–9%) carbon (40–43%) contents, maximum assimilation 32% relation content sludge. high survival (88–95%) positive growth rates (0.28% indicated that species be sustained salmon only source food. results indicate is promising candidate removing from effluents. Moreover, protein contents (52–58%) meet dietary requirements species. Further research needed determine capacity lipid fatty acid profiles its application feed.