THE LIFE-CYCLE OF LAODICEA-INDICA (LAODICEIDAE, LEPTOMEDUSAE, CNIDARIA)

被引：14

作者：

BOUILLON, J

BOERO, F

FRASCHETTI, S

机构：

[1] UNIV LECCE,DIPARTMENTO BIOL,I-73100 LECCE,ITALY

[2] UNIV GENOA,IST SCI AMBIENTALI MARINE,I-16132 SANTA MARGERITA,ITALY

来源：

HYDROBIOLOGIA | 1991年 / 216卷

关键词：

HYDROZOA; LIFE CYCLES; LAODICEA;

D O I：

10.1007/BF00026456

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

The life cycle of Laodicea indica is described. In the Bismarck Sea this species shows a normal alternation of generations in the wet season; but in the dry season the cycle is contracted, and planulae give rise to gonothecae without formation of a hydroid colony. Medusae are liberated about 3 d after planula settlement. This life cycle pattern is previously unreported in hydromedusae. The possible adaptive value of such a life cycle and the evolution of polyp reduction in hydromedusan life cycles are discussed.

引用

页码：151 / 157

页数：7