COMPARATIVE LIFE-CYCLE, BIOMASS AND SECONDARY PRODUCTION OF 3 SYMPATRIC FRESH-WATER GASTROPOD SPECIES

被引：11

作者：

CAQUET, T

机构：

来源：

JOURNAL OF MOLLUSCAN STUDIES | 1993年 / 59卷

关键词：

D O I：

10.1093/mollus/59.1.43

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

The life cycles, biomass and secondary production of three sympatric freshwater basommatophoran snails, Lymnaea palustris (Muller), Physa fontinalis Linnaeus and Anisus rotundatus (Poiret) were studied during two years in a freshwater ditch. L. palustris exhibited an iteroparous life-cycle whereas the two other species presented a semelparous life-cycle, adults died just after oviposition. L. palustris secondary production (dry weight) value was higher (P = 11 298.4 mg 0.1 m-1 yr-1) than those of P. fontinalis (P = 846.3 mg 0.1 m-2 yr-1) and A. rotundatus (P = 1192 mg 0.1 m-2 yr-1).

引用

页码：43 / 50

页数：8

共 42 条

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