Title

Response Of Zooplankton To The Reduction And Elimination Of Submerged Vegetation By Grass Carp And Herbicide In 4 Florida Lakes

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Hydrobiologia

Keywords

Marine & Freshwater Biology

Abstract

Zooplankton populations were monitored monthly for a three year period in four Florida lakes. Each lake received an aquatic vegetation control program using grass carp (Ctenopharyngodon idella Val.) and herbicide, either alone or in combination. All aquatic vegetation was eliminated in the three lakes with grass carp; it was severely reduced and exhibited qualitative shifts in the lake treated with herbicide alone. Total number of recorded zooplankton species was reduced in each subsequent year as vegetation was eliminated, but mean density l−1 increased greatly. The overall trend in all lakes was toward increasing numbers of small filter-feeding herbivores, with a shift from copepod and copepod-cladoceran dominated to rotifer and small cladoceran dominated systems. It is suggested that these changes reflect primary plankton response to fluctuations in habitat, food base, and planktivore pressure resulting from gradual macrophyte alteration. Changes observed indicate apparent increases in eutrophy.

Journal Title

Hydrobiologia

Volume

123

Issue/Number

2

Publication Date

1-1-1985

Document Type

Article

Language

English

First Page

97

Last Page

108

WOS Identifier

WOS:A1985AHD8100001

ISSN

0018-8158

Share

COinS