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The underexplored potential of green macroalgae in aquaculture
Reviews in Aquaculture ( IF 10.4 ) Pub Date : 2021-06-20 , DOI: 10.1111/raq.12580
Anthony Moreira 1 , Sónia Cruz 1 , Rúben Marques 1 , Paulo Cartaxana 1
Affiliation  

Green macroalgae (Chlorophyta) currently represent a residual fraction (<1%) of global seaweed biomass production landings. In turn, red (Rhodophyta) and brown (Ochrophyta) macroalgae dominate the remaining percentage of aquaculture production, exceeding 32 million tonnes per annum. However, the industry relies on a relatively low number of species, in which as few as seven macroalgal genera collectively represent the bulk of global production metrics. At present, innovation and increased sustainability of the industry calls for diversification of macroalgal species/strains in aquaculture to counteract potential adverse effects ensuing from genetic impoverishment, decreased resilience to disease and climate change. Despite the dominance of red and brown seaweed regarding production figures, aquaculture of green macroalgae has witnessed an increasing trend in productivity and diversification over the last decades, particularly in Asia, where green seaweed taxa often occupy specific market niches in the food sector. Furthermore, growing interest in green seaweeds in aquaculture has been highlighted for different applications in emerging western markets (eg IMTA, biorefineries, food delicacies), owing to a unique diversity of cytomorphologies, ecophysiological traits, propagation capacities and bioactive compounds featured by this group of macroalgae. Cultivation technologies are relatively well developed, but sustainability assessments are scarce and required to unlock the potential of green seaweeds. Although it is likely that green macroalgae will remain occupying specialised market niches, in which high-value products are favoured, we argue that aquaculture of chlorophytan taxa presents itself as a compelling option under the current quest for commercial diversification of products and expansion of the sector.

中文翻译:

绿色大型藻类在水产养殖中的未开发潜力

绿色大型藻类(绿藻门)目前代表全球海藻生物质生产着陆的剩余部分(<1%)。反过来,红色(Rhodophyta)和棕色(Ochrophyta)大型藻类在水产养殖产量的剩余百分比中占主导地位,每年超过 3200 万吨。然而,该行业依赖的物种数量相对较少,其中只有七个大型藻类共同代表了全球生产指标的大部分。目前,该行业的创新和更高的可持续性要求水产养殖中的大型藻类/菌株多样化,以抵消因遗传贫困、对疾病和气候变化的抵抗力下降而产生的潜在不利影响。尽管在产量数据上红色和棕色海藻占主导地位,过去几十年,绿色大型藻类的水产养殖在生产力和多样化方面呈现增长趋势,特别是在亚洲,绿色海藻类群通常在食品部门占据特定的市场利基。此外,由于这组海藻在细胞形态学、生态生理学特征、繁殖能力和生物活性化合物方面具有独特的多样性,因此在新兴的西方市场(例如 IMTA、生物精炼厂、美食)的不同应用中,人们对水产养殖中的绿色海藻越来越感兴趣。大型藻类。养殖技术相对发达,但可持续性评估很少,需要释放绿色海藻的潜力。尽管绿色大型藻类很可能仍将占据专门的市场利基,在这些利基市场中青睐高价值产品,
更新日期:2021-06-20
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