Do zebra mussels (Dreissena polymorpha) alter lake water chemistry in a way that favours Microcystis growth?

Bykova, O.; Laursen, Andrew E.; Bostan, Vadim; Bautista, Joseph; McCarthy, Lynda H.

doi:10.1016/j.scitotenv.2006.08.022

Cited by 56 publications

(29 citation statements)

References 29 publications

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“…Both modify not only the abundance, but also the structure of the phytoplanktonic community (Bykova et al, 2006). Our experimental results show these two forcing mechanisms, suggesting that the negative impact of grazing outweights the positive impact of enhanced availability of some nutrients.…”

Section: Discussionmentioning

confidence: 57%

“…This effect has been described in association with the colonization of North American freshwater bodies by D. polymorpha. Several authors noticed that consumption of phytoplankton by dreissenid mussels and excreting soluble waste products at low nitrogen to phosphorus ratios favors growth of cyanobacteria (Conroy & Culver, 2005;Bykova et al, 2006;Fishman et al, 2009). Our measurements indicate that L. fortunei has a similar effect on these nutrients since the N:P ratio was much higher at the start of our experiment (between 14.7 and 20.1, in all enclosures), than at the end of it (1.7-4.4, in the mesocosms with mussels).…”

Section: Changes In the Availability Of Nutrientsmentioning

confidence: 99%

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The introduced bivalve Limnoperna fortunei boosts Microcystis growth in Salto Grande reservoir (Argentina): evidence from mesocosm experiments

et al. 2011

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In order to assess the effects of the introduced bivalve Limnoperna fortunei on watercolumn properties of Salto Grande reservoir, experiments were conducted using six 400 L mesocosms: 2 with 100 mussels, 2 with 300 mussels, and 2 controls (without mussels). At 0, 1, 2, 3, 7, 14, 21, 28, and 35 days we measured nutrient and chlorophyll a concentrations, counted and identified the phytoplankton, and estimated the density, size, and number of cells of the colonies of Microcystis spp. Cumulative periphyton growth and total accumulated sediments were assessed in all enclosures at the end of the experiment. Throughout the experiment, in the controls ammonia and phosphates dropped to near zero, whereas in the mesocosms with L. fortunei they increased two-to tenfold. Nitrates decreased in all mesocosms. In the presence of the mussel, chlorophyll a and algal cells dropped until day 3 increasing thereafter, whereas in the controls they increased from day 0. Periphyton growth and sediment accumulation were significantly higher in the mesocosms with mussels that in the controls. Cell density, proportion of colonial cells and colony size of Microcystis spp. increased in all enclosures, but these increases were dramatically (and very significantly) higher in enclosures with 100 and, especially, with 300 mussels, than in the controls. Our results indicate that L. fortunei modifies nutrient concentrations and proportions, and promotes aggregation of solitary Microcystis spp. cells into colonies; both these effects can favor blooms of this often noxious cyanobacteria.

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Section: Discussionmentioning

confidence: 57%

Section: Changes In the Availability Of Nutrientsmentioning

confidence: 99%

The introduced bivalve Limnoperna fortunei boosts Microcystis growth in Salto Grande reservoir (Argentina): evidence from mesocosm experiments

et al. 2011

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“…The filtering activities of zebra Characteristics of lake dissolved organic matter mussels have been shown to have a large ecosystem-level influence on nitrogen cycling [49][50][51] and organic nitrogen concentrations decrease in water columns in microcosms with live zebra mussels. [52] It is therefore possible that the filtering activities of Zebra mussels result in recycling of larger organic nitrogen compounds such as phenylalanine. The presence of formate in both samples suggests a pathway of organic carbon degradation mainly reported for anoxic marine sediments [53] and indicates that anoxic breakdown by various microorganisms takes place in the lake.…”

Section: Dom Variabilitymentioning

confidence: 99%

Composition of dissolved organic matter within a lacustrine environment

McCaul¹,

Sutton²,

Simpson³

et al. 2011

Environ. Chem.

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Environmental context. Freshwater dissolved organic matter is a complex chemical mixture central to many environmental processes, including carbon and nitrogen cycling. Questions remain, however, as to its chemical characteristics, sources and transformation mechanisms. We studied the nature of dissolved organic matter in a lake system and found that it is influenced by anthropogenic activities. Human activities can therefore influence the huge amounts of carbon sequestered in lakes as dissolved organic matter.Abstract. Freshwater dissolved organic matter (DOM) is a complex mixture of chemical components that are central to many environmental processes, including carbon and nitrogen cycling. However, questions remain as to its chemical characteristics, sources and transformation mechanisms. Here, we employ 1-and 2-D nuclear magnetic resonance (NMR) spectroscopy to investigate the structural components of lacustrine DOM from Ireland, and how it varies within a lake system, as well as to assess potential sources. Major components found, such as carboxyl-rich alicyclic molecules (CRAM) are consistent with those recently identified in marine and freshwater DOM. Lignin-type markers and protein/peptides were identified and vary spatially. Phenylalanine was detected in lake areas influenced by agriculture, whereas it is not detectable where zebra mussels are prominent. The presence of peptidoglycan, lipoproteins, large polymeric carbohydrates and proteinaceous material supports the substantial contribution of material derived from microorganisms. Evidence is provided that peptidoglycan and silicate species may in part originate from soil microbes.

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“…However, studies concerning zebra mussel -M. aeruginosa interactions do not clearly confirm the positive influence of D. polymorpha on M. aeruginosa abundance (e.g., RAIKOW et al, 2004). In some cases, results indicate that zebra mussels promoted cyanobacteria blooms, mostly by preferential feeding, excretion at a low N : P ratio, which is favourable for M. aeruginosa (BYKOVA et al, 2006) and rejection of living Microcystis cells in pseudofaeces (VANDERPLOEG et al, 2001). Nevertheless, zebra mussels may have opposite effects in different habitats, which points to their complex impact on cyanobacteria dynamics (SARNELLE et al, 2005).…”

Section: Discussionmentioning

confidence: 95%

Competitive Influence of Zebra Mussel (Dreissena polymorpha) on Daphnia longispina Population Dynamics in the Presence of Cyanobacteria

Wojtal-Frankiewicz¹,

Sieczko²,

Izydorczyk³

et al. 2010

International Review of Hydrobiology

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The demographic response of Daphnia longispina to the presence of the competitive filter-feeder zebra mussel (Dreissena polymorpha) was examined in a ten-day laboratory experiment. The experiment was carried out in five replicates of four treatments corresponding to zooplankton and zebra mussels presence/absence combinations. Our experiment revealed a negative influence of zebra mussels on D. longispina population growth, suggesting low recruitment caused by high mortality at juvenile stages. We observed a smaller loss of phytoplankton biomass in mussel treatments than in the zooplankton treatment. Additionally, the concentration of microcystins was from 3.5 to 4.3 times higher in mussel treatments than in the zooplankton treatment. We also observed that Daphnia excreted significantly more ammonia than zebra mussels but less phosphate. The high amount of phosphate excreted by zebra mussels might have facilitated M. aeruginosa development and resulted in a greater cyanobacteria biomass in the mussel treatments. These results suggest a negative impact of invasive zebra mussels on a keystone filter-feeding Daphnia spp. and a favourable effect of mussels on M. aeruginosa, by returning them back as pseudoceces, which may be important factors for the management of eutrophic freshwater ecosystems with cyanobacteria blooms.

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Do zebra mussels (Dreissena polymorpha) alter lake water chemistry in a way that favours Microcystis growth?

Cited by 56 publications

References 29 publications

The introduced bivalve Limnoperna fortunei boosts Microcystis growth in Salto Grande reservoir (Argentina): evidence from mesocosm experiments

The introduced bivalve Limnoperna fortunei boosts Microcystis growth in Salto Grande reservoir (Argentina): evidence from mesocosm experiments

Composition of dissolved organic matter within a lacustrine environment

Competitive Influence of Zebra Mussel (Dreissena polymorpha) on Daphnia longispina Population Dynamics in the Presence of Cyanobacteria

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