Biological and physical factors affecting the body burden of organic contaminants in freshwater mussels

Muncaster, B. W.; Hebert, Paul D. N.; Lazăr, Rodica

doi:10.1007/bf01059809

Cited by 62 publications

(31 citation statements)

References 30 publications

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“…15, 1996 1603 expected, given the current knowledge of changes in bioavailability due to POC and DOC sorption. The reason for this is that, even though suspension-feeding mussels have the capacity to assimilate particle-bound PCBs [10], increases in algae enrichment will probably reduce the total bioavailability of the PCBs due to a lower bioavailability of algae [33,34] and DOCassociated [8] PCBs. Consequently, if change in bioavailability was the sole mechanism involved, a reduced PCB accumulation would be expected due to increases in the amount of POC and DOC in the water, as has been observed for other aquatic organisms [5,7,8].…”

Section: Algae Enrichment Effects: Possible Mechanismsmentioning

confidence: 96%

“…In suspension-feeding bivalves this line of reasoning is complicated by the fact that these organisms may assimilate organic contaminants from the food via gastrointestinal uptake [10]. It is likely, however, that the bioavailability of the particle-associated fraction of a contaminant is lower than that of the truly dissolved fraction to these organisms [10,33,34]. Hence, bioavailability differences may generate the above described parabolic relationship between log CF (calculated against total water concentrations) and log K ow in suspensionfeeding bivalves, as observed in this study (Fig.…”

Section: Bioaccumulation Factors Versus K Owmentioning

confidence: 98%

“…4). An increase in algae enrichment will reduce the bioavailability of the PCBs [8,33,34] by increasing the fractions associated with POC and DOC. This reduction in bioavailability is predicted to be larger the higher the log K ow of the PCB congener (Fig.…”

Section: Algae Enrichment Effects: Possible Mechanismsmentioning

confidence: 99%

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Enhanced accumulation of PCB congeners by baltic sea blue mussels, Mytilus edulis, with increased algae enrichment

Gilek¹,

Björk²,

Broman³

et al. 1996

Enviro Toxic and Chemistry

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Abstract-The objective of this study was to examine if natural variations in the quantity of phytoplankton-derived particulate and dissolved organic carbon influences the accumulation of polychlorinated biphenyls (PCBs) in the tissues of Baltic Sea blue mussels (Mytilus edulis L.). In a laboratory flow-through experiment we exposed M. edulis to the technical PCB mixture Aroclor 1248 for 21 d at three different enrichments of the unicellular green algae Chlamydomonas sp., 0.10, 0.16, and 0.32 mg particulate organic carbon (POC)/L. Tissue and water concentrations were determined for seven PCB congeners (International Union of Pure and Applied Chemistry [IUPAC] 52, 101, 105, 118, 138, 153, and 180), and 21-d bioaccumulation factors were calculated against total water concentrations. Contrary to what would be expected, an increase in algae enrichment from 0.10 to 0.32 mg POC/L resulted in an enhanced PCB accumulation by a factor of approx. 2. This increase in PCB accumulation was more pronounced for PCB congeners with lower hydrophobicity. These observations have implications for the design of laboratory accumulation studies and potentially for PCB accumulation and cycling in field populations of suspension-feeding mussels in response to changes in eutrophication status.

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Section: Algae Enrichment Effects: Possible Mechanismsmentioning

confidence: 96%

Section: Bioaccumulation Factors Versus K Owmentioning

confidence: 98%

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Enhanced accumulation of PCB congeners by baltic sea blue mussels, Mytilus edulis, with increased algae enrichment

Gilek¹,

Björk²,

Broman³

et al. 1996

Enviro Toxic and Chemistry

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“…Health assessment of freshwater bivalves traditionally involves lethal tissue collection from animals for histology (Chittick et al 2001), contaminant (Muncaster et al 1990, Cope et al 1999, enzymatic (Doran et al 2001, McMahon & Bogan 2001 or energy analysis (Baker & Hornbach 2000, McMahon & Bogan 2001. These techniques have successfully identified unionid populations suffering the impacts of dramatic localized habitat degradation (Foe & Knight 1987) or major infestations of invasive species (Baker & Hornbach 2000).…”

Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 99%

Evaluation of a nonlethal technique for hemolymph collection in Elliptio complanata, a freshwater bivalve (Mollusca: Unionidae)

Gustafson

Stoskopf²,

Bogan³

et al. 2005

Dis. Aquat. Org.

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Hemolymph, the circulatory fluid of bivalves, transports nutrients, respiratory gases, enzymes, metabolic wastes, and toxicants throughout the body. Hemolymph can provide information pertinent to health assessment of animals or populations, but is not commonly used in freshwater bivalves partly because of the lack of tested, practical techniques for its nonlethal collection. The objective of this study was to evaluate the effect of hemolymph collection on the growth and survival of Elliptio complanata, a freshwater bivalve (Unionidae). We describe a simple technique for the collection of hemolymph from the anterior adductor muscle sinus of E. complanata. To evaluate the effect of hemolymph sampling on mussel survival and growth, 30 mussels sampled using the technique and 30 unsampled controls were followed for 3 mo post collection. Nine animals were sampled 3 times over 7 mo to monitor effects of repeated sampling. No negative impacts on survival or growth were observed in either the singly or repeatedly sampled animals. We also compared the composition of hemolymph collected from the adductor muscle sinus with that collected from the ventricle of the heart. Calcium levels and cell count of hemolymph obtained from the adductor sinus and ventricle were significantly different. There was no significant difference between collection sites for magnesium, phosphorus, ammonia, protein, sodium, potassium, or chloride. We conclude that collection of hemolymph from the adductor sinus is safe for sampled E. complanata and should be explored as a relatively non-invasive, and potentially useful, approach to the evaluation of freshwater mussel health.KEY WORDS: Unionidae · Freshwater mussels · Hemolymph · Nonlethal sampling Resale or republication not permitted without written consent of the publisherDis Aquat Org 65: [159][160][161][162][163][164][165] 2005 water mussels play roles in water filtration, bioturbation, and nutrient cycling and retention (Hauer & Lamberti 1996). They are also food sources for many riparian and aquatic animals (McMahon & Bogan 2001).Health assessment of freshwater bivalves traditionally involves lethal tissue collection from animals for histology (Chittick et al. 2001), contaminant (Muncaster et al. 1990, Cope et al. 1999, enzymatic (Doran et al. 2001, McMahon & Bogan 2001 or energy analysis (Baker & Hornbach 2000, McMahon & Bogan 2001. These techniques have successfully identified unionid populations suffering the impacts of dramatic localized habitat degradation (Foe & Knight 1987) or major infestations of invasive species (Baker & Hornbach 2000). In these situations, because a large proportion of a localized population is affected, only a relatively small number of animals need be sampled to identify the health effect.However, many devastating environmental threats are more insidious, with diffuse impacts. Health effects may be subtle and initially present a picture of low prevalence. Sampling restrictions on endangered or threatened populations limit access to these animals for ...

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“…Freshwater mussels are sometimes used to monitor environmental contaminants because of their ability to accumulate toxic compounds (Muncaster et al 1990) and heavy metals (Duxbury et al 2005) at concentrations much greater than those in water or sediments. Molluscs can also concentrate radionuclides in their shells and tissues (e.g., Van der Borght 1963;Jeffree 1985).…”

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confidence: 99%

Radium‐226 accumulation in Florida freshwater mussels

Brenner

Smoak

Leeper

et al. 2007

Limnology & Oceanography

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Selected lakes in Hillsborough County, Florida have been hydrologically augmented with groundwater to offset stage declines caused by excessive pumping of the Floridan Aquifer. Augmentation water can be relatively rich in 226 Ra (.5 decays per minute [dpm] L 21 ). We measured 226 Ra activities in shells and soft tissues of adult bivalve molluscs (Elliptio cf. buckleyi) from groundwater-augmented and nonaugmented lakes to assess bioaccumulation of 226 Ra by mussels. Mussels from augmented lakes displayed higher 226 Ra in both shells and tissues than did mussels from nonaugmented lakes. Within a sample, 226 Ra activity in Elliptio tissues was higher than the value measured in shells. Highest activities were found in a composite mussel sample (n 5 6) from an augmented lake; soft tissue activity was 619 6 33 dpm g 21 dry weight and shell activity was 147 6 7 dpm g 21 g dry weight. Large mussels displayed greater activities in soft tissues and shells than did small mussels. We transplanted animals from a nonaugmented lake into a groundwater-augmented water body. 226 Ra activity in dry tissue rose from 32 6 1 to 196 6 2 dpm g 21 within 2 months. When 226 Ra-rich mussels (232 6 2 dpm g 21 ) from the augmented lake were transferred to the nonaugmented lake, they showed no significant 226 Ra loss over the 69-d experiment. Large Elliptio mussels concentrated 226 Ra in their soft tissues to levels about 1,000 to 25,000 times concentrations in lake water. Pumping of groundwater in Florida for residential, agricultural, and industrial use contributes dissolved 226 Ra to some surface water bodies, where it can be bioaccumulated by bivalve molluscs.

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Biological and physical factors affecting the body burden of organic contaminants in freshwater mussels

Cited by 62 publications

References 30 publications

Enhanced accumulation of PCB congeners by baltic sea blue mussels, Mytilus edulis, with increased algae enrichment

Enhanced accumulation of PCB congeners by baltic sea blue mussels, Mytilus edulis, with increased algae enrichment

Evaluation of a nonlethal technique for hemolymph collection in Elliptio complanata, a freshwater bivalve (Mollusca: Unionidae)

Radium‐226 accumulation in Florida freshwater mussels

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