This study aimed to evaluate appropriate water sources to improve Solea aegyptiaca aquaculture from larval to the juvenile stage using two water sources (Eastern Harbour (EH) and MaxWell (MW)). Firstly, four microalgae's nutritional value (Nannochloropsis salina, N. oculata, Chlorella salina and Tetraselmis chuii) was assessed in both water sources. MW of high nitrate content enhanced the algal biomass and biochemical composition of all species compared to EH. MW‐N. salina showed the highest growth and biochemical contents among the investigated species and yielded Artemia franciscana with a considerable amount of arachidonic acid (ARA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) compared to EH. Secondly, Artemia enriched MW‐N salina was used to improve S. aegyptiaca quality in both water sources from 10–48 days posthatch at a density of 15 larvae L⁻¹. The MW‐S. aegyptiaca exhibited a significant increase in morphometric parameters, albino percentages and recorded the highest ARA, EPA and DHA content (35.9, 6.1 and 15.9 µg g⁻¹, respectively) compared to that reared on EH. The study reports evidence of albinism of MW‐S. aegyptiaca due to high dietary and ARA content. Overall, the seawater source has a significant impact on the whole food chain quality from microalgae to S. aegyptiaca.

中文翻译：

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四种不同水质微藻种对埃及紫苏幼虫生长，存活和色素沉着的比较研究

这项研究旨在评估适当的水源，以使用两种水源（东港（EH）和麦克斯威尔（MW））将Solea aegyptiaca水产养殖从幼体发展到幼年期。首先，四种微藻的营养价值（微拟球藻，微拟球藻，小球藻藻和四爿chuii）的混合物在二者水源评估。与EH相比，高硝酸盐含量的MW增强了所有物种的藻类生物量和生化组成。MW〜N.藻表明所调查物种中最高的增长及生化内容，并取得了卤虫与EH相比，含有大量的花生四烯酸（ARA），二十碳五烯酸（EPA）和二十二碳六烯酸（DHA）。其次，在孵化后10–48天，以15个幼虫L ^-1的密度，使用富含卤虫病的MW‐ N盐碱来改善两种水源中埃及沙棘的质量。在MW- S. aegyptiaca表现出形态参数的显著增加，白化百分比和记录的最高ARA，EPA和DHA含量（35.9，6.1和15.9微克克^-1相比，饲养在EH分别）。这项研究报告了MW- S.aegyptiaca白化病的证据由于高饮食和ARA含量。总体而言，海水源对从微藻到埃及沙门氏菌的整个食物链质量都有重要影响。