HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Steinman, A. D. Articles by Ogdahl, M. Search for Related Content PubMed PubMed Citation Articles by Steinman, A. D. Articles by Ogdahl, M. Agricola Articles by Steinman, A. D. Articles by Ogdahl, M. Related Collections Ecosystem Restoration Surface Water Quality

Ecological Effects after an Alum Treatment in Spring Lake, Michigan

Annis Water Resources Inst., Grand Valley State Univ., 740 West Shoreline Drive, Muskegon, MI 49441

View larger version (15K): [in this window] [in a new window]   Fig. 1. Site map of Spring Lake, showing location of four sampling sites. Inset: Outline of Michigan's lower peninsula, with encircled dot showing location of Spring Lake.

View larger version (23K): [in this window] [in a new window]   Fig. 2. Selected limnological characteristics (temperature, dissolved oxygen, and chlorophyll a) at Sites 1 through 4 in July 2006 post-alum treatment.

View larger version (16K): [in this window] [in a new window]   Fig. 3. Mean + 1 SE invertebrate densities (organisms m–2) of major groups in Spring Lake in 2004 and 2006.

View larger version (10K): [in this window] [in a new window]   Fig. 4. Total invertebrate density (mean + 1 SE) (organisms m–2) in Spring Lake in 2004 and 2006.

View larger version (17K): [in this window] [in a new window]   Fig. 5. Total phosphorus (TP) concentrations measured in water column above sediment cores taken from Sites 1 through 4 exposed to two different redox conditions. Data are means ± 1 SD (n = 3).

View larger version (19K): [in this window] [in a new window]   Fig. 6. Total phosphorus (TP) concentration in dry sediment (mg kg–1) from summer 2006 sediment cores analyzed before and at the end of the laboratory incubations.

View larger version (21K): [in this window] [in a new window]   Fig. 7. (A) Soluble reactive phosphorus (SRP) concentrations in sediment porewater of cores at the end of the incubation period. (B) Sodium hydroxide– and HCl-extractable SRP concentrations in core sediment at the end of the incubation period.