Photo de stock - Drake Mackerel Mayfly, Ephemera vulgata. Newly emerged transparent mayfly. Mayflies are particularly sensitive to acidification, but may be tolerant to heavy-metal contamination. They are generally bio indicator of water purity for their sensitivity to water pollution. Modest pollution levels in rivers are sufficient to kill 80% of mayfly larvae and eggs.

Photo de stock: Drake Mackerel Mayfly, Ephemera vulgata. Newly emerged transparent mayfly. Mayflies are particularly sensitive to acidification.

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