Predation and physical environment structure the density and population size structure of zebra mussels

Naddafi, Rahmat; Pettersson, Kurt; Eklöv, Peter

doi:10.1899/09-071.1

Cited by 26 publications

(18 citation statements)

References 49 publications

(68 reference statements)

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“…We assumed that surface area was more important than lake volume for zebra mussels' density due to its effect on Dreissena infestation rate (Kraft & Johnson, 2000) and population dynamics (Ramcharan et al, 1992b). We retained mean depth instead of Secchi depth because water depth is one of the most important variables affecting local zebra mussel density (Naddafi et al, 2010). Mean depth was highly collinear with maximum depth, so we excluded maximum depth.…”

Section: Methodsmentioning

confidence: 99%

Physical and chemical properties determine zebra mussel invasion success in lakes

et al. 2011

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To address the question whether the abundance of an invasive species can be explained by physical and chemical properties of the invaded ecosystems, we gathered density data of invasive zebra mussels and the physical and chemical data of ecosystems they invaded. We assembled published data from 55 European and 13 North American lakes and developed a model for zebra mussel density using a generalized additive model (GAM) approach. Our model revealed that the joint effect of surface area, total phosphorus and calcium concentrations explained 62% of the variation in Dreissena density. Our study indicates that large and less productive North American lakes can support larger local populations of zebra mussels. Our results suggest that the proliferation of an exotic species in an area can partially be explained by physical and chemical properties of the recipient environment.

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Section: Methodsmentioning

confidence: 99%

Physical and chemical properties determine zebra mussel invasion success in lakes

et al. 2011

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“…In the field, zebra mussels are considerably affected by a number of predators (Molloy et al 1997), roach being one of the most important species, capable of strongly influencing mussel population structure and density (Naddafi et al 2010). However, predator pressure upon zebra mussel populations varies widely among particular water bodies, as indicated by differences in their age at mortality observed by Czarnołęski et al (2006).…”

Section: Discussionmentioning

confidence: 99%

“…One of the most efficient molluscivores feeding on this species is roach Rutilus rutilus (Prejs et al 1990;Molloy et al 1997), able to considerably affect mussel density in the field (Naddafi et al 2010). In the presence of roach, zebra mussels are more strongly attached to the substratum, more often form aggregations (Kobak and Kakareko 2009;Kobak et al 2010) and reduce their filtration rate (Naddafi et al 2007).…”

Section: Introductionmentioning

confidence: 99%

The effectiveness of the induced anti-predator behaviour of zebra mussel Dreissena polymorpha in the presence of molluscivorous roach Rutilus rutilus

Kobak

Kakareko

2011

Aquat Ecol

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We checked whether the induced antipredator defences of zebra mussels are able to affect the predation success of roach, being one of the most efficient zebra mussel predators in Europe. Previously, several anti-predator defences of mussels have been observed in the presence of roach, including stronger attachment, aggregation forming and inhibition of upward movement. However, the actual efficiency of these responses to reduce the mussel vulnerability to predation was unknown. To check the effectiveness of attachment strength, we exposed mussels for 6 (strong attachment), 1 (weak attachment) or 0 (unattached) days in ceramic trays and then presented the trays to fish in an experimental tank. To test the effectiveness of aggregation, we glued mussels to the trays in groups of three (touching one another) or singly using denture glue and exposed them to fish. To check the effect of the vertical position, we glued mussels with denture glue to the bottom and 10, 20 and 30 cm above the bottom of the tank with fish. After 1-h exposure, we determined the percentages of consumed mussels. Roach predation rate was lowest on strongly attached mussels, intermediate on weakly attached mussels and highest on unattached mussels. Aggregated mussels were less frequently consumed than singletons. Conversely, the vertical position of mussels did not affect the roach predation success. Our study demonstrates that the behavioural defences exhibited by zebra mussels can increase their survival in the presence of predators and thus emphasizes the importance of the anti-predator behaviour of this species.

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“…The literature on Dreissena ecology has identified many potential controls on their populations, including predation (Carlsson, Bustamante, Strayer, & Pace, 2011;Naddafi, Pettersson, & Eklov, 2010;Petrie & Knapton, 1999), regular or catastrophic physical or chemical disturbance (e.g. The literature on Dreissena ecology has identified many potential controls on their populations, including predation (Carlsson, Bustamante, Strayer, & Pace, 2011;Naddafi, Pettersson, & Eklov, 2010;Petrie & Knapton, 1999), regular or catastrophic physical or chemical disturbance (e.g.…”

Section: Introductionmentioning

confidence: 99%

Long‐term variability and density dependence in Hudson River Dreissena populations

et al. 2019

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We used a 27-year record of Dreissena populations in the freshwater tidal HudsonRiver to describe interannual variation in population density, body size, and body condition; estimate long-term variation in recruitment, survivorship, and shell growth; and assess possible controls on the populations. 2.Dreissena populations in the Hudson have been highly variable, with interannual ranges of c. 100-fold in abundance and biomass, and 7-fold in mean body mass. This large interannual variation arises from both long-term trends and 2-5-year cycles.3. Long-term trends include the 2008 appearance of the quagga mussel (Dreissena rostriformis), which still forms a small part (<10%) of the dreissenid community, and a decline in zebra mussel body size. The decline in body size was caused by a longterm decline in adult survivorship rather than a decline in rates of shell growth. We could detect no long-term trends in adult abundance or spread of Dreissena onto soft sediments in the Hudson. 4. We observed persistent, strong cycles in adult abundance and body size. These were driven by the appearance and decay of eight dominant year classes over the 27 years of our study, and were a result of temporal variation in recruitment rather than temporal variation in survivorship. The observed strongly irregular recruitment appears to arise from strong adult-larval interactions, and is consistent with previous simulation model results showing that interactions between adults and larvae can drive persistent cycling. 5. We found evidence that negative density dependence affects recruitment, somatic growth, and body condition of Dreissena in the Hudson. Warm summers may also cause high adult mortality. 6. We put our results into the context of a conceptual model of Dreissena population dynamics, and argue that neither the dynamics nor the controls of populations of these important invaders is known satisfactorily. K E Y W O R D Sbiological invasions, cycling, invasive species, population dynamics, zebra mussel | 475 STRAYER ET Al.

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Predation and physical environment structure the density and population size structure of zebra mussels

Cited by 26 publications

References 49 publications

Physical and chemical properties determine zebra mussel invasion success in lakes

Physical and chemical properties determine zebra mussel invasion success in lakes

The effectiveness of the induced anti-predator behaviour of zebra mussel Dreissena polymorpha in the presence of molluscivorous roach Rutilus rutilus

Long‐term variability and density dependence in Hudson River Dreissena populations

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