Decline and regional extirpation of freshwater mussels (Unionidae) in a small river system invaded by &lt;i&gt;Dreissena polymorpha&lt;/i&gt;: the Rideau River, 1993–2000

Martel, André L.; Pathy, Diane A.; Madill, Jacqueline B.; Renaud, Claude B.; Dean, Stuart L.; Kerr, Steven

doi:10.1139/cjz-79-12-2181

Cited by 14 publications

(4 citation statements)

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“…This study in concert with other studies on the Rideau River shows that all the primary stressors (physical, chemical and biological) individually, or in combination, play a role in determining abundance, biomass and community structure of phytoplankton Pick, 1995, 1997;Hamilton et al, 1997Hamilton et al, , 2011Yang et al, 1997;Martel et al, 2001;Vidal et al, 2004). On an annual scale, total standing stock, irrespective of the metric used and sampling location, was affected by weather and anthropogenically controlled discharge.…”

Section: Physical Chemical and Biological Factorssupporting

confidence: 64%

“…Phytoplankton standing stock expressed as biomass, living unit densities, and chl-a showed a consistent yearly response to the effect of zebra mussel within the impact zone. Under optimum growing conditions, Martel et al (2001) reported densities of zebra mussels reaching 1.3 × 10 5 individuals m −2 in the years 1998-2000, whereas upstream outside the impact zone densities were <47 individuals m −2 . The negative response to the introduction of dreissenid mussels on freshwater phytoplankton communities in North America has been documented and modelled (Padilla et al, 1996;Caraco et al, 1997).…”

Section: Physical Chemical and Biological Factorsmentioning

confidence: 99%

“…Richard, and one mollusk, the zebra mussel Dreissena polymorpha (Pallas). This latter species was most likely introduced midway along the waterway during the early 1990s and, by end of the decade, was well established throughout the downstream reaches of the river (Martel, 1995;Martel et al, 2001;Vidal et al, 2004).…”

Section: Study Areamentioning

confidence: 99%

“…The Ottawa River, immediately downstream of the Rideau River, has three to four times lower phytoplankton biomass, which Hudon (2000) reports to be correlated with temperature and water transparency. Changing nutrient levels and reduced algal biomass since the introduction of Eurasian milfoil in the 1960s combined with the more recent introduction of zebra mussels has modified the biological status of the Rideau River (Fleming, 1992;Martel et al, 2001;Vidal et al, 2004). These specific anthropogenic alterations in the Rideau are not evident in the phytoplankton community of the larger downstream Ottawa River.…”

Section: Phytoplankton Standing Stockmentioning

confidence: 99%

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Spatial, Seasonal and Inter‐annual Variability in Environmental Characteristics and Phytoplankton Standing Stock of the Temperate, Lowland Rideau River, Ontario, Canada

Hamilton

Lavoie

Poulin

2011

River Research & Apps

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Chlorophyll‐a, biomass and living unit concentrations were monitored across the Rideau River over a three‐year period. The results show that a continuum of changing physical, biological and chemical conditions altered the phytoplankton standing stock of the Rideau River. From year to year, weather conditions and anthropogenic impacts like discharge control had a clear effect on the phytoplankton community. The year 2000, with poorer growing conditions and higher flow regime, had a significantly lower phytoplankton standing stock across all the stations. Based on hydrological characteristics, the Rideau River was divided into four distinct reaches, and ANOVAs show a clear reach effect on phytoplankton standing stock. The invasive zebra mussel consistently reduced the phytoplankton standing stock downstream from the main invasion zone over the three years, although there were differences between years. The non‐native zebra mussel further altered the phosphorus–phytoplankton standing stock relationship. Nutrients, ions and metals were not clearly correlated to standing stock in this three‐year study, although the significant effect of the four reaches suggested that environmental characteristics other than hydrological conditions may have an influence. Phytoplankton development downstream followed a polynomial model. However, unlike the stages of development characterizing many river continuum models, the pattern observed in the present study was affected by zebra mussels followed by anthropogenic impacts of discharge control and eutrophication. This and other studies on the Rideau River highlight the significance of scale (spatial and temporal) and metrics selected when evaluating environmental impacts and developing watershed models. Copyright © 2011 John Wiley & Sons, Ltd.

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Section: Physical Chemical and Biological Factorssupporting

confidence: 64%

Section: Physical Chemical and Biological Factorsmentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Phytoplankton Standing Stockmentioning

confidence: 99%

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Spatial, Seasonal and Inter‐annual Variability in Environmental Characteristics and Phytoplankton Standing Stock of the Temperate, Lowland Rideau River, Ontario, Canada

Hamilton

Lavoie

Poulin

2011

River Research & Apps

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Validation of environmental DNA (eDNA) as a detection tool for at‐risk freshwater pearly mussel species (Bivalvia: Unionidae)

Currier

Morris

Wilson

et al. 2018

Aquatic Conservation

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1. Documenting the occurrence and habitat occupancy of rare aquatic species is an ongoing challenge for conservation. Characterization of environmental DNA (eDNA) from bulk water samples has emerged as a powerful tool to infer species presence or absence without the need to observe or handle organisms.2. Previous eDNA studies have yet to develop species-specific markers that target taxa with many potentially sympatric confamilials. Forty-one freshwater pearly mussel species (Unionidae) are found in southern Ontario, Canada, with many of these listed as threatened, endangered, or of conservation concern; however, locating populations for protection can be challenging owing to morphological crypsis and species scarcity.3. Species-specific eDNA markers were developed to target four unionid species. Following in silico and in vitro validation, markers were validated in the field by comparing eDNA results from water samples to detections based on quadrat sampling. 4. Target species were detected by eDNA sampling at all sites where they had previously been located by quadrat sampling. 5. The paired sampling design showed that species-specific markers can be designed even within speciose families, and that eDNA detection of mussels is at least as sensitive as quadrat sampling. Furthermore, detection probabilities were not affected by sampling depth, and eDNA concentrations were positively correlated with mussel densities. 6. These findings confirm that eDNA assays are a valuable complement to traditional methods for locating and managing imperilled unionid populations.

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Long‐term population dynamics of dreissenid mussels (Dreissena polymorpha and D. rostriformis): a cross‐system analysis

et al. 2019

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Dreissenid mussels (including the zebra mussel Dreissena polymorpha and the quagga mussel D. rostriformis) are among the world's most notorious invasive species, with large and widespread ecological and economic effects. However, their long‐term population dynamics are poorly known, even though these dynamics are critical to determining impacts and effective management. We gathered and analyzed 67 long‐term (>10 yr) data sets on dreissenid populations from lakes and rivers across Europe and North America. We addressed five questions: (1) How do Dreissena populations change through time? (2) Specifically, do Dreissena populations decline substantially after an initial outbreak phase? (3) Do different measures of population performance (biomass or density of settled animals, veliger density, recruitment of young) follow the same patterns through time? (4) How do the numbers or biomass of zebra mussels or of both species combined change after the quagga mussel arrives? (5) How does body size change over time? We also considered whether current data on long‐term dynamics of Dreissena populations are adequate for science and management. Individual Dreissena populations showed a wide range of temporal dynamics, but we could detect only two general patterns that applied across many populations: (1) Populations of both species increased rapidly in the first 1–2 yr after appearance, and (2) quagga mussels appeared later than zebra mussels and usually quickly caused large declines in zebra mussel populations. We found little evidence that combined Dreissena populations declined over the long term. Different measures of population performance were not congruent; the temporal dynamics of one life stage or population attribute cannot generally be accurately inferred from the dynamics of another. We found no consistent patterns in the long‐term dynamics of body size. The long‐term dynamics of Dreissena populations probably are driven by the ecological characteristics (e.g., predation, nutrient inputs, water temperature) and their temporal changes at individual sites rather than following a generalized time course that applies across many sites. Existing long‐term data sets on dreissenid populations, although clearly valuable, are inadequate to meet research and management needs. Data sets could be improved by standardizing sampling designs and methods, routinely collecting more variables, and increasing support.

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Decline and regional extirpation of freshwater mussels (Unionidae) in a small river system invaded by <i>Dreissena polymorpha</i>: the Rideau River, 1993–2000

Cited by 14 publications

References 0 publications

Spatial, Seasonal and Inter‐annual Variability in Environmental Characteristics and Phytoplankton Standing Stock of the Temperate, Lowland Rideau River, Ontario, Canada

Spatial, Seasonal and Inter‐annual Variability in Environmental Characteristics and Phytoplankton Standing Stock of the Temperate, Lowland Rideau River, Ontario, Canada

Validation of environmental DNA (eDNA) as a detection tool for at‐risk freshwater pearly mussel species (Bivalvia: Unionidae)

Long‐term population dynamics of dreissenid mussels (Dreissena polymorpha and D. rostriformis): a cross‐system analysis

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