Co-culture of Ulva sp. and Dicentrarchus labrax in Recirculating Aquaculture System: effects on growth, retention of nutrients and fatty acid profile

Special Issue - Ecological intensification: A new paragon for sustainable aquaculture

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Table 7

Proximate composition (% w.w.), gross energy (kJ g⁻¹), N, P (% w.w.), N/P and chlorophyll (µg g⁻¹) of wild and bi-weekly cultivated Ulva.

	Wild (n=5)	Cultivated (n=5)
Water	75.52 ± 1.25	76.88 ± 1.28	NS
Ash	6.82 ± 0.53	6.85 ± 0.35	NS
Crude lipid	0.25 ± 0.03	0.20 ± 0.02	NS
Crude protein	2.33 ± 0.10	3.72 ± 0.16	^*
Carbohydrate†	15.08 ± 0.77	12.3 ± 0.81	^*
Gross energy	3.28 + 0.01	3.13 + 0.01	^*
N	0.37 ± 0.02	0.60 ± 0.02	^*
P	0.02 ± 0.00	0.13 ± 0.02	^*
N/P	17.78 + 0.34	4.66 ± 0.14	^*
Chlorophyll α	11.35 ± 0.88	22.84 ± 3.14	^*
Chlorophyll b	8.05 ± 0.59	18.16 ± 1.57	^*

Means (±SE) and P values for the significance of differences between wild and cultivated Ulva, are presented.

Mean values at the same line with different letter in superscript are significantly different.

*p < 0.05, **p < 0.01, ***p < 0.001, NS: non-significant. † total carbohydrate.

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