teisipäev, 17. märts 2020

Korallrahu kangelane


Ma juhtusin lugema, et torukäsn (inglise keeles barrel sponge) on korallrahu kangelane. Nad avaldavad suurt positiivset mõju korallrahudele kuna filtreerivad veest palju kasulikke toitaineid teistele rahul elavatele organismidele.

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Keila, Harjumaa, Estonia

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