Declining populations of the fingernail clamMusculium transversum in the upper Mississippi River

Wilson, Donna M.; Naimo, Teresa J.; Wiener, James G.; Anderson, R. V.; Sandheinrich, Mark B.; Sparks, Richard E.

doi:10.1007/bf02329315

Cited by 26 publications

(29 citation statements)

References 31 publications

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“…Pool 9 densities reached more than 1,000 m -2 in the fall ) were found in Pool 13 in 1993 and then collapsed to 87 m -2 in 1997. Wilson et al (1995) Fingernail clam populations were abundant in the Illinois River before the 1950s (Mills et al 1966). Paloumpis and Starrett (1960) found fingernail clams extremely abundant in Lake Matanzas (La Grange Pool; 212 m -2 ) in 1952.…”

Section: Discussionmentioning

confidence: 99%

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Multispatial-scale variation in benthic and snag-surface macroinvertebrate assemblages in mid-continent US great rivers

Angradi

Bolgrien

Jicha

et al. 2009

Journal of the North American Benthological Society

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Section: Discussionmentioning

confidence: 99%

“…Some studies suggest that mayfly and fingernail clam densities have been declining (Eckblad 1991;Wilson et al 1995). The results from the stratified random sampling of the LTRMP over the past 10 years suggest that relatively low densities throughout the UMRS could be the rule rather than the exception.…”

Section: Discussionmentioning

confidence: 99%

Multispatial-scale variation in benthic and snag-surface macroinvertebrate assemblages in mid-continent US great rivers

Angradi

Bolgrien

Jicha

et al. 2009

Journal of the North American Benthological Society

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“…Of the 14 clams found at MRM 364.5, only one sample was homozygous for Gpi-2 74 , whereas the remaining 13 were homozygous for the pollution-tolerant Gpi-2 100 . Two explanations for the near fixation of Gpi-2 100 may lie in the recent population crash at this locality (Wilson et al 1995). As the population recovered, M. transversum with the Gpi-2 100 apparently experienced a selective advantage over fingernail clams possessing Gpi-2 74 .…”

Section: Resultsmentioning

confidence: 99%

Pollution-Tolerant Allele in Fingernail Clams ( Musculium transversum )

Sloss

Romano

Anderson

1998

Archives of Environmental Contamination and Toxicology

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For nearly 50 years, the fingernail clam (Musculium transversum) was believed to be virtually eliminated from the Illinois River. In 1991, workers began finding substantial populations of M. transversum in the Illinois River including several beds in and around the highly polluted Chicago Sanitary District. In order to determine if populations of M. transversum from polluted sites exhibited any genetic response to the high levels of toxins and to examine the genetic structure of several populations of M. transversum for any changes due to the population crash, starch-gel electrophoresis was performed on M. transversum from three Illinois River localities and four Mississippi River basin locations. The sampled populations produced an inbreeding coefficient (FIS) of 0.929, indicating that the populations were highly inbred. The results of a suspected founder effect due to a bottleneck was suggested by an FST = 0.442. The isozyme Glucose-6-phosphate isomerase-2 (Gpi-2) produced allelic frequency patterns that were consistent with expected patterns of a pollution-tolerant allele. Polluted sites exhibited elevated frequencies of Gpi-2(100) whereas nonpolluted sites exhibited elevated frequencies of Gpi-2(74). This frequency pattern suggested that natural selection was occurring in populations under severe toxic pressures, leading to an increase in the frequency of the allele Gpi-2(100). Therefore, Gpi-2(100) is a possible pollution-tolerant mutation in M. transversum.

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Section: Introductionmentioning

confidence: 99%

“…They are consequently exposed to contaminants that have been dissolved in water, associated with suspended particles, and deposited in bottom sediments (Newton 2003). Unfortunately, most toxicity data for freshwater mussels are from water-only exposures, despite reports that sediment-associated contaminants contributed to declines of mollusks in several large rivers (Sparks & Sandusky 1981, Wilson et al 1995.As described in the United States Fish and Wildlife Service (hereafter 'Service') freshwater mussel recovery plan (USFWS 2003), the fat threeridge Amblema neislerii, shinyrayed pocketbook Lampsilis subangulata, Gulf moccasinshell Medionidus penicillatus, Ochlockonee moccasinshell Medionidus simpsonianus, oval pigtoe Pleurobema pyriforme, Chipola slabshell Elliptio chipolaensis, and purple bankclimber Elliptoideus sloatianus freshwater mussel species have suffered population declines. According to the Service's recovery plan, these species of the eastern Gulf Slope rivers were known to have rich populations.…”

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confidence: 99%

Water and sediment quality survey of threatened and endangered freshwater mussel habitat in the Chipola River Basin, Florida

Hemming¹,

Winger²,

Rauschenberger³

et al. 2008

Endang. Species Res.

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Reduced habitat quality may be contributing to the decline of freshwater mussels in southeastern rivers. As part of an ongoing evaluation of the quality of freshwater mussel habitat in Gulf of Mexico coastal rivers, the Chipola River was assessed during 2006 and 2007. Sediment samples were collected at 8 sites along the Chipola River on May 2 and 3, 2006, and analyzed for contaminants and tested in the laboratory for toxicity to Hyalella azteca using 29 d exposures to solidphase sediment and 96 h exposures to sediment porewater. In addition, benthic macroinvertebrate populations were sampled at each site. Using the sediment quality triad approach (chemistry, toxicity and in situ benthic assemblages) to assess habitat quality, 3 sites (1, 4 and 8) were shown to be impaired, with Site 4 being the most impaired site. H. azteca survival in porewater exposures was reduced, and trace elements were elevated in sediments at these sites; however, concentrations were not considered exceedingly high. Water quality samples collected did not violate the State of Florida's water quality standards. The lack of concordance among the test metrics (in situ benthic assemblages were not impaired) at these sites suggests marginal habitat impairment.KEY WORDS: Water quality · Sediment quality · Macroinvertebrates · Chipola River · Freshwater mussels 6: 95-107, 2008 dence of causal mechanisms . Although causation has not been established, exposure to contaminants may have contributed to significant mussel losses (Newton 2003). Descriptions of localized mortality have been provided for chemical spills and other discrete point source discharges; however, range-wide decreases in mussel density and diversity may have resulted from the more insidious effects of chronic, low-level contamination (Naimo 1995, Newton 2003. As stated by Augspurger and others (2003), freshwater mussel experts often report chemical contaminants as factors that are limiting to unionids (Richter et al. 1997). They also noted the differential sensitivity of freshwater mussels that results in tolerances to some organic solvents and pesticides (Keller 1993, Keller & Ruessler 1997, but also high sensitivity of early life stages to contaminants such as chlorine (Goudreau et al. 1993), metals (Keller & Zam 1991, Jacobson et al. 1993, and ammonia (Horne & McIntosh 1979, Goudreau et al. 1993). Resale or republication not permitted without written consent of the publisher OPEN PEN ACCESS CCESSEndang Species ResThere has recently been much progress in the area of mussel ecotoxicology ). There has been particular focus on the development and use of glochidia and juvenile mussel-specific toxicity tests (ASTM 2007, Wang et al. 2007a).Although not yet available when the present evaluation was designed and proposed, these mussel-specific tests have shown under which circumstances traditional surrogates are less sensitive to certain toxic exposures than some mussel life stages (Bringolf et al. 2007a,b,c, Newton & Bartsch 2007, Wang et al. 2007b,c, Gillis et al. 2008...

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Declining populations of the fingernail clamMusculium transversum in the upper Mississippi River

Abstract: We examined recent temporal trends in the abundance of fingernail clams Musculium transversum (formerly Sphaerium transversum) in the upper Mississippi River.

Cited by 26 publications

References 31 publications

Multispatial-scale variation in benthic and snag-surface macroinvertebrate assemblages in mid-continent US great rivers

Multispatial-scale variation in benthic and snag-surface macroinvertebrate assemblages in mid-continent US great rivers

Pollution-Tolerant Allele in Fingernail Clams ( Musculium transversum )

Water and sediment quality survey of threatened and endangered freshwater mussel habitat in the Chipola River Basin, Florida

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