Respiratory adjustment of dreissenid mussels (Dreissena polymorpha and Dreissena bugensis) in response to chronic turbidity

1996 ◽  
Vol 53 (7) ◽  
pp. 1626-1631 ◽  
Author(s):  
R Brent Summers ◽  
James H Thorp ◽  
James E Alexander, Jr. ◽  
Ronald D Fell
Keyword(s):  
Dreissena Polymorpha ◽  
Dreissena Bugensis ◽  
Dreissenid Mussels

Effect of velocity on the filter feeding of dreissenid mussels (Dreissena polymorpha and Dreissena bugensis): implications for trophic dynamics

1999 ◽  
Vol 56 (9) ◽  
pp. 1551-1561 ◽  
Author(s):  
Josef Daniel Ackerman
Keyword(s):  
Dreissena Polymorpha ◽  
Fluid Dynamic ◽  
Flow Chamber ◽  
Freshwater Ecosystems ◽  
Trophic Dynamics ◽  
Clearance Rates ◽  
Dreissena Bugensis ◽  
Dreissenid Mussels ◽  
Marine Bivalves ◽  
Dynamic Forces

Fluid dynamic forces were found to significantly affect the ability of freshwater dreissenid mussels (Dreissena polymorpha and Dreissena bugensis) to clear plankton. Tests conducted in a flow chamber at <1 cm·s-1 were consistent with published clearance rates from standard tests involving unstirred containers (i.e., 60-70 mL· mussel-1·h-1 for 11-mm-long mussels). Increasing ambient velocity up to ~10 cm·s-1 led to clearance rates at least twice those of standard testing methods. Higher velocities (~20 cm·s-1) were inhibitory and resulted in reduced clearance rates. There were no detectable differences in the clearance rates of D. polymorpha and D. bugensis of equal size tested at ~10 cm·s-1, but large mussels had greater clearance rates than small ones. These results were found to be consistent with observations from marine bivalves and indicate that fluid dynamic issues are of importance in freshwater ecosystems, especially those that are shallow and (or) flowing. The trophic dynamics of these ecosystems will be better understood when the effects of fluid dynamics on the organism's ability to filter feed and the local delivery of seston through turbulent mixing are considered.

Occurrence of chironomid larvae (Paratanytarsus sp.) as commensals of dreissenid mussels (Dreissena polymorpha and D. bugensis)

1994 ◽  
Vol 72 (6) ◽  
pp. 1159-1162 ◽  
Author(s):  
Anthony Ricciardi
Keyword(s):  
Dreissena Polymorpha ◽  
Large Scale ◽  
Mantle Cavity ◽  
Dreissena Bugensis ◽  
Chironomid Larvae ◽  
Quagga Mussels ◽  
Elliptio Complanata ◽  
Dreissenid Mussels ◽  
First Case ◽  
St Lawrence River

Up to 38% of zebra mussels (Dreissena polymorpha) and 10% of quagga mussels (Dreissena bugensis) collected from the upper St. Lawrence River in July 1993 were invaded by larvae of the tanytarsine chironomid Paratanytarsus sp. Third- and fourth-instar larvae were found living in the mantle cavity around the gills, gonads, and siphonal tissues. The larvae were never observed feeding on these tissues, and no tissue damage was detected. Most frequently, a single Paratanytarsus sp. larva occurred in a mussel; otherwise, two to six larvae were found. Invaded mussels were significantly larger than co-occurring non-invaded mussels. No chironomid larvae were found in young-of-the-year dreissenids. This is the first case of a large-scale endosymbiotic association, apparently a form of inquiline commensalism, between chironomid larvae and dreissenid mussels. Paratanytarsus sp. larvae also occurred in unionid bivalves (Elliptio complanata, Lampsilis radiata, Anodonta cataracta), but at relatively lower frequencies.

scholarly journals The impact of dreissenid mussels on growth of the fragile papershell (Leptodea fragilis), the most abundant unionid species in Lake Erie

2015 ◽  
Vol 93 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Robert A. Krebs ◽  
Elizabeth M. Barkett ◽  
Matthew T. Begley
Keyword(s):  
Dreissena Polymorpha ◽  
Lake Erie ◽  
Freshwater Mussel ◽  
Species Competition ◽  
Western Basin ◽  
Dreissena Bugensis ◽  
Byssal Thread ◽  
Quagga Mussels ◽  
Dreissenid Mussels ◽  
The Impact

The arrival of zebra mussels (Dreissena polymorpha (Pallas, 1771)) and subsequently quagga mussels (Dreissena bugensis Andrusov, 1897) (Dreissenidae) in the Great Lakes in the 1980s induced many changes, most notably the devastation of native freshwater mussel species. Recently, empty shells of the fragile papershell (Leptodea fragilis (Rafinesque, 1820)) have become common, particularly in the western basin of Lake Erie, suggesting that this fast-growing species may be increasing in numbers in the lake. To examine continued competition with dreissenids, shell age and length of L. fragilis were used to contrast lifespan and growth rate, estimated as the slope of age on shell length, for shells from two beach localities where byssal threads were present on most shells and two sites where dreissenids were rare or absent. Few recent shells from Lake Erie beaches exceeded 5 years of age, and byssal thread counts were more numerous on older shells. Growth and lifespan were estimated to be significantly lower where dreissenid mussels remained numerous than when measured either from historic collections along Lake Erie or from protected populations. Therefore, even for this early-reproducing species, competition from dreissenids may continue to interfere with growth and shorten lifespan, which are effects few other unionid species can likely tolerate sufficiently to sustain population growth.

Deepwater population structure and reproductive state of quagga mussels (Dreissena bugensis) in Lake Erie

1997 ◽  
Vol 54 (10) ◽  
pp. 2428-2433 ◽  
Author(s):  
S L Roe ◽  
H J MacIsaac
Keyword(s):  
Population Structure ◽  
Dreissena Polymorpha ◽  
Lake Erie ◽  
Soft Tissues ◽  
Gonadal Development ◽  
Zebra Mussels ◽  
Reproductive State ◽  
Dreissena Bugensis ◽  
Frequency Distributions ◽  
Quagga Mussels

Quagga mussel (Dreissena bugensis) population structure and reproductive status were assessed at deepwater (37 and 55 m) sites in eastern Lake Erie during July 1996. Mussels occupied ~70% of soft substrates at 37-m sites and between 63 and 90% at 55-m sites. Shell length and dry mass frequency distributions were similar at both sites, although recruits <<= 5 mm comprised a larger proportion of the population at the deeper site. The population surveyed here allocated disproportionately less mass to shell and more to soft tissues relative to zebra mussels (Dreissena polymorpha) from shallow-water sites in eastern Lake Erie and from Lake St. Clair. The population at 55 m was slightly skewed toward male mussels (58%). Female mussels that were examined for reproductive state contained mature oocytes (80%) or had spent gonads (20%). Because water temperature at the site was only 4.8°C, this survey provides the first evidence of gonadal development and spawning by quagga mussels at low temperature. These findings contrast with most reports of spawning by congeneric zebra mussels at temperatures >=>12°C but are consistent with distributions of the species in different basins of the lake.

Predicting the intensity and impact of Dreissena infestation on native unionid bivalves from Dreissena field density

1995 ◽  
Vol 52 (7) ◽  
pp. 1449-1461 ◽  
Author(s):  
A. Ricciardi ◽  
J. B. Rasmussen ◽  
F. G. Whoriskey
Keyword(s):  
Dreissena Polymorpha ◽  
Habitat Degradation ◽  
Poisson Model ◽  
Saturation Curve ◽  
Linear Regression Models ◽  
Dreissena Bugensis ◽  
Field Density ◽  
Infestation Intensity ◽  
The Mean ◽  
Large Clusters

Introduced dreissenid mussels (Dreissena polymorpha and Dreissena bugensis) foul native unionid bivalves by attaching to their shells in large clusters and may critically impair many North American unionids that are already threatened by habitat degradation. Using literature and new field data, we examined patterns of Dreissena infestation on unionids, and the relationships between Dreissena field density, infestation intensity, and unionid mortality. Linear regression models showed that Dreissena field density strongly predicts (i) the proportion of unionids colonized by dreissenids (r2 = 0.90, p < 0.0001) and (ii) the mean number of dreissenids attached to unionids (r2 = 0.81, p < 0.0001). We fitted a compound Poisson model that accounts for dreissenid clustering and predicts both the proportion of colonized unionids and the mean infestation intensity as effectively as our empirically derived models. The proportion of unionids colonized by Dreissena follows a saturation curve, increasing rapidly with Dreissena densities up to 200/m2, and reaching a plateau at 70–80% colonization. Unionid mortality (reflected by the proportion of dead unionids) is strongly correlated with Dreissena field density (r2 = 0.82, p < 0.002) at densities above 1000/m2. Our models predict that severe unionid mortality (>90%) occurs when Dreissena density and mean infestation intensity reach 6000/m2 and 100 dreissenids/unionid.

Chaetogaster limnaei (Annelida: Oligochaeta) as a parasite of the zebra mussel Dreissena polymorpha, and the quagga mussel Dreissena bugensis (Mollusca: Bivalvia)

1996 ◽  
Vol 82 (1) ◽  
pp. 1-7 ◽  
Author(s):  
David Bruce Conn ◽  
Anthony Ricciardi ◽  
Mohan N. Babapulle ◽  
Kristine A. Klein ◽  
David A. Rosen
Keyword(s):  
Zebra Mussel ◽  
Dreissena Polymorpha ◽  
Quagga Mussel ◽  
Dreissena Bugensis
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