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首页> 外文期刊>Journal of oceanography >Contribution of benthic microalgae to the whole water algal biomass and primary production in Suo Nada, the Seto Inland Sea, Japan
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Contribution of benthic microalgae to the whole water algal biomass and primary production in Suo Nada, the Seto Inland Sea, Japan

机译:日本濑户内海索那达底栖微藻对整个水藻生物量和初级生产的贡献

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Biomass and primary productivity of benthic microalgae (BMA) and planktonic algae in Suo Nada, the western part of the Seto Inland Sea, Japan were compared in terms of unit area with regard to their seasonal and spatial distribution in 2002. Judging from light compensation depth and water depth, the southwestern part of Suo Nada was considered to be a potential habitat for BMA. Whereas the contribution of sedimented planktonic algae was high in biomass at the sediment surface, BMA was obviously significant both in biomass and primary production in the shallow southwestern part. However, the contribution of BMA to the total biomass in the entire water column was 7% in winter and 2% in summer. The primary production of BMA varied between 4.0 and 74.0 mg C m?2 d?1 in the southwestern part, accounting for 2–12% of the whole water column primary production. The ecological roles of BMA in the Suo Nada ecosystem are discussed, such as reduction of benthic nutrient flux, oxidation of surface sediments and feed for higher animals.
机译:就2002年日本濑户内海西部的索那达市底栖微藻(BMA)和浮游藻的生物量和初级生产力进行了单位面积方面的季节性和空间分布方面的比较。2002年,根据光补偿深度和水深,索纳达西南部被认为是BMA的潜在栖息地。沉积的浮游藻类在沉积物表面的生物量贡献很大,而西南浅水区的生物量和初级生产中,BMA均显着。但是,BMA对整个水柱中总生物量的贡献在冬季为7%,夏季为2%。在西南部,BMA的初级产量在4.0至74.0 mg C m?2 d?1之间变化,占整个水柱初级产量的2–12%。讨论了BMA在Suo Nada生态系统中的生态作用,例如减少底栖营养通量,氧化表层沉积物和为高等动物提供饲料。

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