Responses of the planktonic diatom Asterionella formosa Hassall to abiotic environmental factors in a reservoir complex (south-eastern France)

被引：19

作者：

Bertrand, C ^{[1
]}

Fayolle, S ^{[1
]}

Franquet, E ^{[1
]}

Cazaubon, A ^{[1
]}

机构：

[1] Fac Sci & Tech St Jerome, CNRS, UMR 6116, IMEP Lab Ecol Eaux Continentales Mediterraneennes, F-13397 Marseille 20, France

来源：

HYDROBIOLOGIA | 2003年 / 501卷 / 1-3期

关键词：

Mediterranean reservoirs; Asterionella formosa; population dynamics; abiotic interactions;

D O I：

10.1023/A:1026251101534

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

The River Durance and its main tributary, the Verdon, are both highly regulated rivers flowing in south-eastern France. The course of both rivers is interrupted by a series of reservoirs with quite different geographical, morphometric, climatic, hydrodynamic and chemical characteristics. The planktonic diatom Asterionella formosa Hassall, which has undesirable cyclic effects from the water management point of view, was studied in this complex of reservoirs located in the Mediterranean region. The results indicate that only the monomictic calcareous reservoirs show a bimodal pattern of Asterionella formosa abundance. The population dynamics of this algal species was found to depend on both the morphometric features and the hydraulic mode of management ( retention time) used at each reservoir, as well as on the physical ( temperature, suspended matter) and chemical ( nitrogen, silica, calcium) characteristics of the water.

引用

页码：45 / 58

页数：14