Variations in the pallial organ sizes of the invasive oyster, Crassostrea gigas, along an extreme turbidity gradient

Dutertre, Mickaël; Barillé, Laurent; Beninger, Peter G.; Rosa, Philippe; Gruet, Yves

doi:10.1016/j.ecss.2009.09.007

Cited by 27 publications

(23 citation statements)

References 52 publications

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“…4). Our results support a general tendency established in previous studies: bivalve suspension feeders, such as D. polymorpha and C. gigas, have smaller gill surfaces in turbid habitats as an adaptive mechanism for optimizing food intake and avoiding gill damage associated with elevated mineral turbidity (Payne et al 1995;Schneider et al 1998;Dutertre et al 2009). Although other factors, such as low dissolved oxygen concentration and high contamination levels, may also play an important role (as can be observed on the significantly lower gill area of mussels found downstream from a petrochemical complex in QU) our analyses suggest that both total gill area and R LS of L. fortunei were strongly influenced by the amount of TSS (Fig.…”

Section: Discussionsupporting

confidence: 91%

“…We observed significant variation among populations with respect to gill proportions and shell morphometry (including width : length and width : height ratios). Similar findings have been reported in other bivalve species (Drent et al 2004), including the invasive bivalves C. fluminea, Crassostrea gigas, D. polymorpha, and D. rostriformis bugensis (Payne et al 1995;Dutertre et al 2009;Peyer et al 2010). Morphometric variation thus appears to allow invasive molluscs to successfully colonize, become established in, and spread from novel environments, including those exhibiting substantial environmental gradients.…”

Section: Discussionsupporting

confidence: 78%

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Morphological and genetic variability in an alien invasive mussel across an environmental gradient in South America

Paolucci

Sardiña

Sylvester

et al. 2014

Limnology & Oceanography

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Adaptation is an essential step in the establishment and spread of alien species in new environments, with phenotypic plasticity or genetic variability often contributing to this success. The golden mussel Limnoperna fortunei is a biofouling mollusc native to Southeast Asia that was introduced to South America near the Río de la Plata estuary, Argentina, though the species has subsequently spread more than 2000 km upstream. We analyzed morphological and genetic variation in 24 introduced populations of L. fortunei across its South American range. Relative gill area and shell morphology differed significantly, even among geographically proximate populations. Differences in relative gill area were especially marked across the species' range and were negatively correlated with total suspended solids. Whereas mean gill cilia length, filament width, and interfilamental ciliary junction distance did not differ significantly among populations, mean gill cilia density was significantly lower in populations from areas with high suspended solids. Conversely, morphological differences were not related to the number of haplotypes, haplotype diversity, or nucleotide diversity, based upon analyses of the mitochondrial cytochrome c oxidase subunit 1 gene. Our results indicate that introduced populations of golden mussels in South America exhibit pronounced morphological variation in shell and gill metrics that appear to result from developmental plasticity in relation to total suspended sediments, as has been observed in other mussel species. These adaptations may have facilitated spread of this species to a wide range of habitats.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 78%

Morphological and genetic variability in an alien invasive mussel across an environmental gradient in South America

Paolucci

Sardiña

Sylvester

et al. 2014

Limnology & Oceanography

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“…Morphological differences in the feeding organs of other conspecific suspension-feeders from different environments have previously been reported, mostly in bivalves (e.g., Franz 1993;Payne et al 1995;Honkoop et al 2003;Drent et al 2004;Dutertre et al 2007Dutertre et al , 2009Yoshino et al 2013). For example, Franz (1993) showed that Geukensia demissa mussels from Jamaica Bay, New York, living high in the intertidal zone had relatively larger gills than those living in the low intertidal.…”

Section: Resultsmentioning

confidence: 99%

Differences in feeding adaptations in intertidal and subtidal suspension-feeding gastropods: studies on Crepidula fornicata and Crepipatella peruviana

et al. 2015

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“…If this were the case then E. dilatata from the Grand River would be expected to remove Chlorella in our flow chamber at higher rates than its conspecific, given sufficient differences in gill morphology. Gill structure, siphon positioning and gill to palp size ratios have been found to vary among marine mussels from differing hydrodynamic habitats (Riisgård, ; Dutertre et al ., ; Troost et al ., ). Our collection permits required that we return mussels to their collection sites so we could not use microscopy to examine gill structure to address this hypothesis, nor were we able to determine whether there were differences in the tissue mass among individuals.…”

Section: Discussionmentioning

confidence: 99%

Hydrodynamic habitat influences suspension feeding by unionid mussels in freshwater ecosystems

Byllaardt

Ackerman

2014

Freshwater Biology

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Summary Benthic suspension feeders play significant roles in aquatic ecosystems, but the influences of abiotic, especially hydrodynamic, factors on many of their activities remain largely unknown. This is especially true for freshwater unionid mussels, which are important inhabitants of rivers and lakes, often forming multispecies assemblages in the former. Our goal is to determine whether and how seston flux affects the suspension feeding of freshwater unionid mussels from different hydrodynamic habitats (i.e. lentic and lotic). Fluorometric measurements of algal depletion in a recirculating flow chamber were used to determine the clearance rate (CR) of four freshwater mussel species: Elliptio complanata, Elliptio dilatata, Fusconaia flava and Strophitus undulatus. Clearance rate varied with algal flux (J = UC, where U is velocity and C is algal concentration) for all species examined, resulting in a 41‐fold increase in CR for some species, compared with no‐flux controls. Importantly, the results from the no‐flux controls were consistent with published CR values obtained under static conditions. Elliptio dilatata from the fastest flowing lotic system (Grand River, Ontario) cleared up to four times more algae than any other species, including its conspecifics from a slower flowing river (Ausable River, Ontario) and the species from the lentic habitat (E. complanata; Lake Opeongo, Ontario). Differences in CRs were also found among E. dilatata, F. flava and S. undulatus from the same lotic habitat at the highest algal flux examined, indicating that species may specialise to different hydrodynamic conditions. The impact of suspension feeding by unionid mussels has probably been underestimated, especially under lotic conditions with high seston flux. Mussels may have ecotypic responses to their hydrodynamic habitats, which affect their CR. Moreover, specialisation within a single habitat type is indicative of resource partitioning that could reduce competition in multispecies assemblages.

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Variations in the pallial organ sizes of the invasive oyster, Crassostrea gigas, along an extreme turbidity gradient

Cited by 27 publications

References 52 publications

Morphological and genetic variability in an alien invasive mussel across an environmental gradient in South America

Morphological and genetic variability in an alien invasive mussel across an environmental gradient in South America

Differences in feeding adaptations in intertidal and subtidal suspension-feeding gastropods: studies on Crepidula fornicata and Crepipatella peruviana

Hydrodynamic habitat influences suspension feeding by unionid mussels in freshwater ecosystems

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