Seasonal effects of the zebra mussel (<i>Dreissena polymorpha</i>) on sediment denitrification rates in Pool 8 of the Upper Mississippi River

Bruesewitz, Denise A.; Tank, Jennifer L.; Bernot, Melody J.; Richardson, William B.; Strauss, Eric A.

doi:10.1139/f06-002

Cited by 33 publications

(40 citation statements)

References 61 publications

(48 reference statements)

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“…Our previous work on the influence of zebra mussels on denitrification rates in a large Mid-western river found seasonality to be important (Bruesewitz et al, 2006). Our previous work on the influence of zebra mussels on denitrification rates in a large Mid-western river found seasonality to be important (Bruesewitz et al, 2006).…”

Section: Introductionmentioning

confidence: 91%

“…Although lower winter temperatures might be expected to reduce the metabolic activity of zebra mussels, our previous work in the Mississippi River showed feeding activity during the winter (Bruesewitz et al, 2006), which provided the impetus to conduct this year-round study in Gull Lake. For example, lentic systems are strongly influenced by seasonal patterns of thermal stratification that limit nutrient availability in surface waters, followed by periods of whole-lake mixing of nutrient-rich hypolimnetic water.…”

Section: Introductionmentioning

confidence: 99%

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Seasonal effects of zebra mussels on littoral nitrogen transformation rates in Gull Lake, Michigan, U.S.A.

2009

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Summary Zebra mussels (Dreissena polymorpha) are successful colonisers of lake littoral habitats and they interact strongly with littoral benthos. Previous research suggests that localised areas colonised by zebra mussels may be hotspots of nitrogen (N) cycling. The effects of zebra mussels on nitrification and denitrification rates were examined approximately every other month for 1 year in Gull Lake, Michigan, U.S.A. Littoral sediment was collected from an area free of zebra mussels and distributed into shallow trays; rocks colonised with zebra mussels were placed in half of the trays, while uncolonised rocks were placed in the remaining trays. After an incubation period of 6–8 weeks in the lake, sediment and zebra mussels were collected from the trays, replaced with new sediment and zebra mussels, and placed in the lake for the next interval. In the laboratory, sediment nitrification and denitrification rates were measured for each tray. Sediment nitrification rates did not increase in the presence of zebra mussels; instead nitrification rates were sensitive to changes in water temperature and increased with increasing exchangeable sediment ammonium. In contrast, denitrification rates increased in sediment trays with zebra mussels in the winter when nitrate (NO3−) availability was high and when Chara did not grow in the trays. Sediment denitrification was NO3−‐limited in all seasons, regardless of zebra mussel treatment. However, sediment in the presence of zebra mussels responded less to NO3− addition, suggesting that NO3− limitation of denitrification can be reduced by zebra mussel activity. Zebra mussels have a seasonally variable impact on sediment denitrification rates, and this may translate into altered seasonal patterns of N cycling in localised areas of lakes where they are particularly abundant.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Seasonal effects of zebra mussels on littoral nitrogen transformation rates in Gull Lake, Michigan, U.S.A.

2009

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“…Deposition of dreissenid shells on soft sediments affects nutrient and gas exchange at the sediment-water interface, which ultimately affects sediment and porewater chemistry (Bruesewitz et al 2006, Turner 2010. Sediments under dreissenid beds and shell deposits are O 2 -deficient relative to sediments without dreissenids (Turner 2010, Zaiko et al 2010.…”

Section: ] Decadal Changes In Benthic Biomass 743mentioning

confidence: 99%

Decadal changes in benthic invertebrate biomass and community structure in Lake Simcoe

Rennie

Evans

2012

Freshwater Science

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Total benthic invertebrate biomass in shallow offshore waters (depths 10-15 m) increased 17-fold on average following the invasion of dreissenid mussels and implementation of P controls in Lake Simcoe, Ontario, despite a 50% overall decrease in total invertebrate density during the same time period. The increase in total invertebrate biomass at 10-and 15-m depths was primarily dreissenid biomass. Patterns of biomass with depth and dreissenid invasion for individual taxa were typically similar to those for density. Biomass of chironomid and nondreissenid bivalves declined at shallow (10-15 m) sites but increased at the deepest (20-30 m) sites, whereas biomass of oligochaetes declined at all sites. Density and biomass of Amphipoda, Isopoda, and Gastropoda increased at depths §10 m, and these taxa were found more frequently in deeper sites after dreissenid invasion than before. Increased habitation of deeper sites by these taxa may be mediated by increased habitat complexity caused by deposition of dreissenid shells, nutrient enrichment of substrate occupied by dreissenids, and improvements in hypolimnetic dissolved O 2 and water clarity observed during dreissenid invasion. Increased length and biomass of profundal chironomids after dreissenid invasion may be the result of taxonomic changes in the chironomid community, which in turn appear to be closely associated with improvements in deep-water O 2 concentrations. Changes in the benthic community described here probably have important consequences for the degree of coupling between nearshore and offshore habitats in Lake Simcoe.

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“…There are two exceptions to the general pattern of low ambient denitrification and denitrification potential in channels. Macrophyte beds along channel borders and beds of the invasive zebra mussel (Dreissena polymorpha) can be hotspots for denitrification because abundant organic material and anoxic sediments are present in these areas Bruesewitz et al, 2006).…”

Section: Denitrificationmentioning

confidence: 99%

“…For example, zebra mussel beds are hot spots for denitrification Bruesewitz et al, 2006). Furthermore, zebra mussels filter P-rich particles from the water column and excrete dissolved N and P in a low N:P ratio (James et al, 2000).…”

Section: Macroinvertebrate Fauna and Nutrient Cyclingmentioning

confidence: 99%

Nitrogen and phosphorus in the Upper Mississippi River: transport, processing, and effects on the river ecosystem

2010

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Existing research on nutrients (nitrogen and phosphorus) in the Upper Mississippi River (UMR) can be organized into the following categories: (1) Long-term changes in nutrient concentrations and export, and their causes; (2) Nutrient cycling within the river; (3) Spatial and temporal patterns of river nutrient concentrations; (4) Effects of elevated nutrient concentrations on the river; and (5) Actions to reduce river nutrient concentrations and flux. Nutrient concentration and flux in the Mississippi River have increased substantially over the last century because of changes in land use, climate, hydrology, and river management and engineering. As in other large floodplain rivers, rates of processes that cycle nitrogen and phosphorus in the UMR exhibit pronounced spatial and temporal heterogeneity because of the complex morphology of the river. This spatial variability in nutrient processing creates clear spatial patterns in nutrient concentrations. For example, nitrate concentrations generally are much lower in off-channel areas than in the main channel. The specifics of in-river nutrient cycling and the effects of high rates of nutrient input on UMR have been less studied than the factors affecting nutrient input to the river and transport to the Gulf of Mexico, and important questions concerning nutrient cycling in the UMR remain. Eutrophication and resulting changes in river productivity have only recently been investigated the UMR. These recent studies indicate that the high nutrient concentrations in the river may affect community composition of aquatic vegetation (e.g., the abundance of filamentous algae and duckweeds), dissolved oxygen concentrations in offchannel areas, and the abundance of cyanobacteria. Actions to reduce nutrient input to the river include changes in land-use practices, wetland restoration, and hydrological modifications to the river. Evidence suggests that most of the above methods can contribute to reducing nutrient concentration in, and transport by, the UMR, but the impacts of mitigation efforts will likely be only slowly realized.

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Seasonal effects of the zebra mussel (Dreissena polymorpha) on sediment denitrification rates in Pool 8 of the Upper Mississippi River

Cited by 33 publications

References 61 publications

Seasonal effects of zebra mussels on littoral nitrogen transformation rates in Gull Lake, Michigan, U.S.A.

Seasonal effects of zebra mussels on littoral nitrogen transformation rates in Gull Lake, Michigan, U.S.A.

Decadal changes in benthic invertebrate biomass and community structure in Lake Simcoe

Nitrogen and phosphorus in the Upper Mississippi River: transport, processing, and effects on the river ecosystem

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