Water movement activating fragmentation: a new dispersal strategy for hydractiniid hydroids

被引：21

作者：

Bavestrello, G

Puce, S

Cerrano, C

Castellano, L

Arillo, A

机构：

[1] Univ Ancona, Ist Sci Mare, I-60131 Ancona, Italy

[2] Acquario Genova, I-16100 Genoa, Italy

[3] Univ Genoa, Dipartimento Studio Terr & Risorse, I-16126 Genoa, Italy

来源：

JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM | 2000年 / 80卷 / 02期

关键词：

D O I：

10.1017/S0025315499001964

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

The fragmentation process in Hydractinia pruvoti (Motz-Kossovska, 1905) which live on shells inhabited by hermit crabs is activated by the intensity of water movement that induces a rapid and abundant production of propagules by transversal fission. Being produced by all kinds of polyps in the polymorphic colony, fragments are very different from each other both in shape and size. After their liberation fragments first settle on the bottom, then dedifferentiate and produce a network of hydrorhizae from which new polyps arise.

引用

页码：361 / 362

页数：2

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