MACROALGAE AND PHYTOPLANKTON COMPETITION IN THE CENTRAL VENICE LAGOON

被引：74

作者：

SFRISO, A

PAVONI, B

机构：

[1] University of Venice, Department of Environmental Sciences, Venice, 30123

来源：

ENVIRONMENTAL TECHNOLOGY | 1994年 / 15卷 / 01期

关键词：

MACROALGAE; PHYTOPLANKTON; NUTRIENTS; NET PRIMARY PRODUCTION; GRAZING PRESSURE;

D O I：

10.1080/09593339409385399

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The presence-absence of macroalgae and/or phytoplankton in some areas of the Venice lagoon and the factors controlling the prevailing of one over the other were tested by monitoring two critical sites over March-December 1990. One, Sacca Sessola [B1], was the lagoon area more densely populated by macroalgae, vice versa the other, namely Fusina [D] displayed only phytoplankton blooms. For this purpose macroalgae and phytoplankton biomass variations were studied directly in field. In addition, macroalgal biomass growth was studied by resuspending pre-determined biomass amounts into net cages placed at different depths. These semi-natural methods were not able to reproduce the real algal growth, however allowed to identify the main causes of phytoplankton blooms and macroalgal absence at Fusina.

引用

页码：1 / 14

页数：14

共 18 条

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[2]

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