Marine biologists in Namibia suspect the deaths were caused by a neurotoxin called domoic acid, which is produced by algae blooms like red tide.

纳米比亚的海洋生物学家怀疑这些死亡是由一种叫做软骨藻酸的神经毒素引起的，这种毒素是由赤潮等藻类大量繁殖产生的。

This algae is harmless to the fish who eat it, but for the sea lions which ingest those fish, the algae's domoic acid can trigger seizures and brain damage.

这种藻类对吃它的鱼无害，但对于以这些鱼为食的海狮来说，藻类的软骨藻酸会引发癫痫和脑损伤。