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首页> 外文期刊>Harmful Algae >Renewal time and the impact of harmful algal blooms on the extensive mussel raft culture of the Iberian coastal upwelling system (SW Europe)
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Renewal time and the impact of harmful algal blooms on the extensive mussel raft culture of the Iberian coastal upwelling system (SW Europe)

机译：更新时间和有害藻华对伊比利亚沿海上升流系统广泛的贻贝筏文化的影响（西南欧洲）

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摘要

The extension and intensity of the upwelling season in the NW Iberian Peninsula (42°N-43°N) have decreased by 30 and 45% over the last 40 years, respectively. Accordingly, the renewal time (t) of the Rias Baixas, four large coastal inlets where 15% of the World extraction of blue mussels occurs, has increased by 240%. We indirectly demonstrate here that the growing t has caused the increasing occurrence of harmful microalgae in these embayments, dramatically affecting mussel raft cultivation. The equation D - 365(1 - exp(-T/c_l)) explains 80% of the variability of the number of days per year that mussels cannot be extracted from the hanging ropes because of the occurrence of harmful microalgae (D). The coefficient c_1 = 37 ± 2 days indicates that an average t over the upwelling season of >25 ± 1 or 50 ± 3 days reduce mussel extraction to only 50 or 25% of the year, respectively.
机译：在过去40年中，西北伊比利亚半岛（42°N-43°N）上升流季节的延伸和强度分别下降了30％和45％。因此，Rias Baixas的更新时间（t）增加了240％，Rias Baixas是世界上15％的蓝贻贝提取发生的四个大型沿海入口。我们在此间接证明，生长的t导致这些巢穴中有害微藻的发生增加，从而极大地影响贻贝筏的养殖。公式D-365（1- exp（-T / c_1））解释了由于有害微藻类（D）的出现而导致无法从吊索中提取贻贝的每年天数的80％变化。系数c_1 = 37±2天，表明上升季节的平均t大于25±1或50±3天，贻贝的提取率分别降低到每年的50％或25％。

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