Grazing effects of blue mussel Mytilus edulis on the pelagic food web under different turbulence conditions

Maar, Marie; Nielsen, Torkel Gissel; Bolding, Karsten; Burchard, Hans; Visser, André W.

doi:10.3354/meps339199

Cited by 48 publications

(29 citation statements)

References 37 publications

(63 reference statements)

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“…For example, oysters and ascidians pump 5 to 10 L h −1 g −1 dry weight (32,33). However, these ciliary feeding currents generate much higher deformation rates (34,35) and are primarily used for grazing on plankton incapable of swimming out of the feeding current, e.g., phytoplankton. In contrast, the strategy of M. leidyi to generate a hydrodynamically silent feeding current allows it to forage on motile prey as a stealth predator.…”

Section: Discussionmentioning

confidence: 99%

Stealth predation and the predatory success of the invasive ctenophore Mnemiopsis leidyi

Colin

Costello

Hansson

et al. 2010

Proc. Natl. Acad. Sci. U.S.A.

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In contrast to higher metazoans such as copepods and fish, ctenophores are a basal metazoan lineage possessing a relatively narrow set of sensory-motor capabilities. Yet lobate ctenophores can capture prey at rates comparable to sophisticated predatory copepods and fish, and they are capable of altering the composition of coastal planktonic communities. Here, we demonstrate that the predatory success of the lobate ctenophore Mnemiopsis leidyi lies in its use of cilia to generate a feeding current that continuously entrains large volumes of fluid, yet is virtually undetectable to its prey. This form of stealth predation enables M. leidyi to feed as a generalist predator capturing prey, including microplankton (approximately 50 μm), copepods (approximately 1 mm), and fish larvae (>3 mm). The efficacy and versatility of this stealth feeding mechanism has enabled M. leidyi to be notoriously destructive as a predator and successful as an invasive species.feeding current | flow | predator | prey | biological invasions T he planktonic predator, Mnemiopsis leidyi (Fig.

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Section: Discussionmentioning

confidence: 99%

Stealth predation and the predatory success of the invasive ctenophore Mnemiopsis leidyi

Colin

Costello

Hansson

et al. 2010

Proc. Natl. Acad. Sci. U.S.A.

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“…In such cases, phytoplankton depletion has a direct negative effect on shellfish performance (Smaal et al 2013). Dense populations of bivalves have the filtration capacity to effectively reduce suspended seston concentrations (Dame 1996;Strohmeier et al 2005;Guyondet et al 2013) and impose a strong control on phytoplankton populations (Dame 1996;Prins et al 1998;Newell 2004;Maar et al 2007;Cranford et al 2009;Strohmeier et al 2012;Filgueira et al 2014b). Food availability, however, is not only a function of particle concentration, but also particle size characteristics and the suspension feeder's capacity to retain these particles (Strohmeier et al 2012).…”

Section: Introductionmentioning

confidence: 97%

Picophytoplankton contribution to Mytilus edulis growth in an intensive culture environment

et al. 2016

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“…These beds have the capacity to filtrate the water column several times a day and may significantly reduce the density of microalgae and smaller mesozooplankton organisms (Fréchette and Bourget 1985;Dolmer 2000a, b;Nielsen and Maar 2007;Maar et al 2007). Stomach analyses of M. edulis have shown that these filter feeders actually may cause an important pre-settling mortality on conspecific mussel larvae (Davenport et al 2000;Lehane and Davenport 2004).…”

Section: Introductionmentioning

confidence: 99%

The impact of the adult blue mussel (Mytilus edulis) population on settling of conspecific larvae

Dolmer

Stenalt

2009

Aquacult Int

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The choice of a mussel bed as a settling locality by conspecific mussel larvae is a trade-off between reduced fitness due to an increased risk of larval predation and post-settling food competition with the filtering adults and the benefit from a reduced post-settling mortality. This reduced post-settling mortality may be due to a reduced benthic predation in habitats with high complexity. In a field experiment, the larval settling of blue mussels, Mytilus edulis, was recorded on an artificial substrate 0.25, 1 and 2 m above the bottom during six periods in spring 1999. The experiment was conducted at four stations with dense mussel beds located at two of these stations. Two of the four stations, one with mussel beds and one without, were located in a wind-exposed area and the two other stations in a sheltered area. It was demonstrated that the larval settling was reduced up to 1 m above the mussel beds. A size analysis of the settled mussels indicated that the reduction in settling intensity close to mussel beds was due to a pre-settling process: the larvae were predated by the filtering adult mussels. Settling was significantly affected by wind stress. During periods with a high mean wind velocity and a turbulent water column, the larvae showed a reduced settlement 1 m above a mussel bed relative to 2 m above, whereas the same patterns not could be observed outside a mussel bed. The importance of the filtration activity of the adult mussels and the behaviour of the larvae is discussed. The recruitment of blue mussels into a mussel bed was investigated. Here, significant positive correlations were observed between the density of recruits and density of adult mussels and weights of empty shells. This indicates that the filtering mussels not only increase the mortality of larvae, but also serve as an important substrate reducing post-settling predation from benthic predators.

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Grazing effects of blue mussel Mytilus edulis on the pelagic food web under different turbulence conditions

Cited by 48 publications

References 37 publications

Stealth predation and the predatory success of the invasive ctenophore Mnemiopsis leidyi

Stealth predation and the predatory success of the invasive ctenophore Mnemiopsis leidyi

Picophytoplankton contribution to Mytilus edulis growth in an intensive culture environment

The impact of the adult blue mussel (Mytilus edulis) population on settling of conspecific larvae

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