Français : Gemmules de l'éponge d'eau douce Spongilla lacustris = amoebocyte entourées d’une couche dense de spicules entrelacées = forme de résistante et de dormance métabolique apparaissant en automne et permettant à l'éponge de passer l'hiver (ici dans le nord de la France)
English: Gemmules of the freshwater sponge Spongilla lacustris (here in northern France) = resistant form of metabolic dormancy and appear in autumn.
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