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Feeding mechanisms in the gastropod Crepidula fecunda

机译:腹足类第二爬行动物的饲养机制

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The gastropod Crepidula fecunda feeds in 2 distinct ways: grazing of the substrate and suspension feeding. The taenioglossan plays a role in both processes. In the former, the radula rasps the surface, and the material is immediately ingested. This means of food acquisition is mainly used by motile individuals, i.e. juveniles and adult males. Adult females are sessile, and are only able to rasp the area beneath the head region, severely limiting the amount of food acquired. Females brooding egg capsules are even more restricted, since the area normally grazed is occupied by the capsule mass.
机译:腹足纲的食足蟹(Cropidula fecunda)以两种不同的方式进食:底物的放牧和悬浮液进食。 taenioglossan在这两个过程中都起作用。在前者中,锯齿状锉将表面弄磨,然后立即摄取材料。这种获取食物的方式主要由运动个体,即少年和成年男性使用。成年雌性无动于衷,只能打碎头部下方的区域,严重限制了获得的食物数量。雌性对卵囊的孵化甚至受到更大的限制,因为正常放牧的区域被卵囊团占据。

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