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Understanding zebra mussel (Dreissen...

Knoll, Lesley Beth.

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Understanding zebra mussel (Dreissena polymorpha) impacts on autotrophic and heterotrophic plankton of inland lake ecosystems (Microcystis aeruginosa).

Record Type:	Electronic resources : Monograph/item
Title/Author:	Understanding zebra mussel (Dreissena polymorpha) impacts on autotrophic and heterotrophic plankton of inland lake ecosystems (Microcystis aeruginosa)./
Author:	Knoll, Lesley Beth.
Description:	59 p.
Notes:	Source: Masters Abstracts International, Volume: 42-06, page: 2094.
Contained By:	Masters Abstracts International42-06.
Subject:	Biology, Ecology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1419974
ISBN:	0496247263

Understanding zebra mussel (Dreissena polymorpha) impacts on autotrophic and heterotrophic plankton of inland lake ecosystems (Microcystis aeruginosa).
Knoll, Lesley Beth.

Understanding zebra mussel (Dreissena polymorpha) impacts on autotrophic and heterotrophic plankton of inland lake ecosystems (Microcystis aeruginosa). - 59 p.

Source: Masters Abstracts International, Volume: 42-06, page: 2094.

Thesis (M.S.)--Michigan State University, 2004.

Zebra mussels (Dreissena polymorpha) invaded the Great Lakes of N. America in the mid-1980's, and have rapidly spread into inland lakes, particularly in Michigan. Most research on the impact of Dreissena invasion has been conducted in well-mixed aquatic ecosystems, while little is known about such impacts in thermally-stratified inland lakes. Dreissena invasion has recently been associated with an increase in the toxic cyanobacterium (bluegreen), Microcystis aeruginosa, in low-nutrient lakes but here again, there is little compelling survey data from inland lakes indicating significantly elevated M. aeruginosa biomass in invaded habitats. In addition, no studies have examined whether bluegreen toxins are elevated in Dreissena-invaded lakes.

ISBN: 0496247263Subjects--Topical Terms:

1017726
Biology, Ecology.

Understanding zebra mussel (Dreissena polymorpha) impacts on autotrophic and heterotrophic plankton of inland lake ecosystems (Microcystis aeruginosa).
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035 $a (UnM)AAI1419974
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100 1 $a Knoll, Lesley Beth. $3 1933860
245 1 0 $a Understanding zebra mussel (Dreissena polymorpha) impacts on autotrophic and heterotrophic plankton of inland lake ecosystems (Microcystis aeruginosa).
300 $a 59 p.
500 $a Source: Masters Abstracts International, Volume: 42-06, page: 2094.
500 $a Adviser: Orlando Sarnelle.
502 $a Thesis (M.S.)--Michigan State University, 2004.
520 $a Zebra mussels (Dreissena polymorpha) invaded the Great Lakes of N. America in the mid-1980's, and have rapidly spread into inland lakes, particularly in Michigan. Most research on the impact of Dreissena invasion has been conducted in well-mixed aquatic ecosystems, while little is known about such impacts in thermally-stratified inland lakes. Dreissena invasion has recently been associated with an increase in the toxic cyanobacterium (bluegreen), Microcystis aeruginosa, in low-nutrient lakes but here again, there is little compelling survey data from inland lakes indicating significantly elevated M. aeruginosa biomass in invaded habitats. In addition, no studies have examined whether bluegreen toxins are elevated in Dreissena-invaded lakes.
520 $a To address these needs, I conducted a large-scale survey of inland lakes in Michigan that contain or lack D. polymorpha. The surveyed lakes were otherwise similar in nutrients, morphometry, and location. Microcystis aeruginosa biomass was 3.6 times higher and total particulate toxin concentration was 3.3 times higher in invaded lakes. Ciliate biomass was 45% lower and rotifer biomass was 44% lower in invaded lakes. Rotifer richness and diversity were also lower in lakes with D. polymorpha . In addition, a shift in the size distribution of ciliates was found between lake categories indicating that zebra mussels may be reducing larger, algivorous ciliates in favor of smaller bacterivorous ciliates. In general, zebra mussel impacts on microzooplankton biomass in the stratified lakes I sampled were weaker than those reported from well-mixed systems.
590 $a School code: 0128.
650 4 $a Biology, Ecology. $3 1017726
650 4 $a Biology, Limnology. $3 1018638
690 $a 0329
690 $a 0793
710 2 0 $a Michigan State University. $3 676168
773 0 $t Masters Abstracts International $g 42-06.
790 1 0 $a Sarnelle, Orlando, $e advisor
790 $a 0128
791 $a M.S.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1419974