red tides

同根派生

These red tides can also cause fish kills.
這些赤潮也可能造成魚(yú)類(lèi)死亡。
But Red Tide isn't the only problem.
但問(wèn)題不衹是赤潮。
Red Tide is usually caused by agricultural pesticides, detergents or conditions, which increase nutrients in the water.
赤潮通常是由於辳業(yè)殺蟲(chóng)劑、清潔劑引起的，或是因爲(wèi)營(yíng)養(yǎng)增大的水域狀況。
But with this type of Red Tide in Ago Bay, we unfortunately still don't know the cause.
但對(duì)於AGOBAY的赤潮類(lèi)型，我們還沒(méi)有找到原因。
The result showed most of red tides in prawn ponds were polyphase.
研究結(jié)果表明:發(fā)生在該縣蝦池中的絕大多數(shù)赤潮爲(wèi)多相型赤潮。