Copepod growth and diatoms: insensitivity of Acartia tonsa to the composition of semi-natural plankton mixtures manipulated by silicon:nitrogen ratios in mesocosms

Title

Copepod growth and diatoms: insensitivity of Acartia tonsa to the composition of semi-natural plankton mixtures manipulated by silicon:nitrogen ratios in mesocosms

Publication Type

Journal Article

Year of Publication

2009

Authors

Sommer U

Journal

Oecologia

Volume

159

Pagination

207-215

ISBN Number

0029-8549

Keywords

mesocosm, Kiel, 1.4 m3, Copepod diet, nutrient addition, Germany

Abstract

The feeding selectivity and the growth and reproductive success of the copepod Acartia tonsa have been studied in mesocosms fertilized at different Si:N ratios (0-1.75:1) and, therefore, at different compositions of the phytoplankton communities. Phytoplankton composition showed a strong response to nutrient ratios, with diatoms comprising > 90% at Si:N ratios > 1:1 of total biomass as opposed to

URL

Date of Published

Feb

Accession Number

ISI:000262576700019

Type of Article

Alternate Journal