We investigated the growth and bioremediation potential of five local seaweed species (Codium fragile, Ulva pertusa, Ecklonia stolonifera, Saccharina japonica and Gracilariopsis chorda), using an integrated fish‐seaweed culture system as a biofilter for effluents from black rockfish (Sebastes schlegelii) tanks. The specific growth rate, biomass and net yield values of green algae were higher than those of brown algae. The tissue N and P levels of all species increased at the end of the experiment, but N:P ratios varied among seaweed species. The uptake rate and efficiency of total ammonia nitrogen uptake were the highest in U. pertusa and lowest in S. japonica. The phosphate uptake efficiency among all species ranged from 43% for S. japonica to 30% for G. chorda. These results suggest that all species can efficiently remove enriched nitrogen and phosphorus from fish tank effluents and are suitable for integrated aquaculture and bioremediation. However, inter‐specific differences were observed among seaweeds with regard to the biofiltration performance for different forms of nitrogen. The highest total oxidized nitrogen (ToxN) uptake efficiency was observed in E. stolonifera and S. japonica, while the lowest was observed in U. pertusa. ToxN uptake rates of E. stolonifera and S. japonica was 1.8 times higher than that of U. pertusa. Thus, a seaweed polyculture that included species with varying nitrogen source‐specific biofiltration activities might allow us to remove nutrients from effluents more effectively. These results provide valuable information regarding the selection of optimal seaweed species in fish‐seaweed integrated systems.

中文翻译：

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鱼类-海藻综合水产养殖系统中五个海藻物种的生物修复潜力比较：对多种海藻养殖的影响

我们调查的五名当地海藻种类的增长和生物修复潜力（刺松藻，孔石莼，Ecklonia颖，海带和Gracilariopsis索），使用集成的鱼海藻培养体系作为从黑石斑鱼废水生物滤池（平鲉属许氏）坦克。绿藻的比生长速率，生物量和净产量值均高于棕藻。在实验结束时，所有物种的组织氮和磷水平均增加，但海藻物种之间的N：P比有所不同。吸收速率和总氨氮吸收效率均在最高ü。 百日草在S中最低。 粳稻。在所有物种中，磷的吸收效率为S的43％。 粳稻（G. chorda）的比例为30％。这些结果表明，所有物种都可以有效地去除鱼缸废水中富集的氮和磷，适合进行综合水产养殖和生物修复。然而，在不同形式的氮的生物过滤性能方面，海藻之间存在种间差异。在E中观察到最高的总氧化氮（ToxN）吸收效率。 颖和小号。 粳稻，而最低的是ü。 莼。E的ToxN吸收率。 颖和小号。 粳稻比高出1.8倍ü。 莼。因此，包括具有不同氮源特定生物过滤活动的物种的海藻混养可能使我们能够更有效地从废水中去除营养。这些结果提供了有关在鱼类-海藻综合系统中选择最佳海藻种类的有价值的信息。