Histological and ultrastructural studies of larval and juvenile Lampsilis (Bivalvia) from the Upper Mississippi River

Lasee, Becky A.

doi:10.31274/rtd-180813-11698

Cited by 19 publications

(45 citation statements)

References 81 publications

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“…Given that L. cardium is widespread and common throughout the Midwest and L. higginsii is a federally endangered species, we were interested in the potential for L. cardium to serve as a surrogate test species for L. higginsii. The necessity to pedal feed is also supported by scanning microscopy evidence that suggests that young juvenile mussels lack well-defined gills [13]. They are generally suspension feeders on phytoplankton [2] but may also deposit feed [11].…”

Section: Introductionmentioning

confidence: 89%

Lethal and sublethal effects of ammonia to juvenile Lampsilis mussels (unionidae) in sediment and water‐only exposures

Newton

Bartsch

2007

Enviro Toxic and Chemistry

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We compared the sensitivity of two juvenile unionid mussels (Lampsilis cardium and Lampsilis higginsii) to ammonia in 96-h water-only and sediment tests by use of mortality and growth measurements. Twenty mussels were placed in chambers buried 2.5 cm into reference sediments to approximate pore-water exposure (sediment tests) or elevated above the bottom of the experimental units (water-only tests). In the sediment tests, a pH gradient existed between the overlying water (mean 8.0), sediment- water interface (mean 7.7), and 2.5 cm depth (mean 7.4). We assumed that mussels were exposed to ammonia in pore water and report effect concentrations in pore water, but if they were exposed to the higher pH water, more of the ammonia would be in the toxic un-ionized (NH(3)) form. The only differences in toxicity and growth between mussel species occurred in some of the water-only tests. In sediment tests, median lethal concentrations (LC50s) ranged from 124 to 125 microg NH(3)-N/L. In water-only tests, LC50s ranged from 157 to 372 microg NH(3)-N/L. In sediment tests, median effective concentrations (EC50s based on growth) ranged from 30 to 32 microg NH(3)-N/L. Juvenile mussels in the water-only tests grew poorly and did not exhibit a dose-response relation. These data demonstrate that growth is a sensitive and valuable endpoint for studies on ammonia toxicity with juvenile freshwater mussels and that growth should be measured via sediment tests.

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Section: Introductionmentioning

confidence: 89%

Lethal and sublethal effects of ammonia to juvenile Lampsilis mussels (unionidae) in sediment and water‐only exposures

Newton

Bartsch

2007

Enviro Toxic and Chemistry

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“…Although adult mussels are often used in acute lethality tests (Rodgers et al 1980, Harrison et al 1984, their ability to close their valves to reduce exposure hinders their usefulness in acute lethality tests (Naimo et al 1992a). Acute lethality tests suggest that juvenile freshwater mussels are more sensitive to Cd than the larval or adult stages (Lasee 1991) and more sensitive to Cu than adults (Jacobson et al 1993). Conversely, larvae in marine systems are frequently more sensitive than juveniles (Ringwood 1990).…”

Section: Acute Responsesmentioning

confidence: 99%

“…Sublethal end-points in mussel toxicity studies include changes in foot immobilization (Millington andWalker 1983, Doherty andCherry 1988), filtering activity (Rodgers et al 1980, Doherty andCherry 1988), oxygen consumption (Naimo et al 1992a), blood osmotic pressure (Doherty and Cherry 1988), bioelectric activity (Morgan et al 1989), ciliary activity (Lasee 1991) and valve activity (Rodgers et al 1980, Millington and Walker 1983, Doherty et al 1987, Jacobson et al 1993. Lasee (1991) determined both lethal (LCs0) and sublethal (ECs0 -effective concentration affecting 50% of the organisms) end-points in acute toxicity tests with juvenile Lampsilis cardium.…”

Section: Toxicity End-pointsmentioning

confidence: 99%

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A review of the effects of heavy metals on freshwater mussels

1995

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: The widespread recent decline in the species diversity and population density of freshwater mussels in North America may be partly related to chronic, low-level exposure to toxic metals. As benthic filter-feeding organisms, freshwater mussels are exposed to metals that are dissolved in water, associated with suspended particles and deposited in bottom sediments. Thus, freshwater mussels can bioaccumulate certain metals to concentrations that greatly exceed those dissolved in water. In adult mussels, the most common site of metal uptake is the gill, followed by the mantle and the kidney. The toxic effects of metals on freshwater mussels have been examined in a few acute toxicity tests, but the sublethal effects of long-term exposure to low environmental concentrations are little understood. Sublethal exposure to metals can alter growth, filtration efficiency, enzyme activity and behaviour. Sublethal effects are frequently observed at concentrations that are only half the lethal concentrations. However, few toxicity tests have used environmentally realistic exposure concentrations. Total concentrations of Cd, Cu, Hg and Zn in many oxic surface waters are in the ngl(-1) range, yet many toxicity studies have exposed mussels to concentrations in the μgl(-1) or even the mgl(-1) range. An understanding of the processes by which metals affect freshwater mussels would provide insights on the ecotoxicological significance of metal contamination to natural mussel populations and aid in the development of water-quality criteria that adequately protect mussels.

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“…1). Growth rates of 5.9 m/d [29] and 6.6 m/d [30] have been reported for juvenile Lampsilis cardium in the control treatments of their respective studies. Mean growth of controls in the six chronic tests ranged from 1.9 to 3.7 m/d and was similar to growth in previous tests with juvenile L. siliquoidea [10,18] in which growth of controls ranged from 2.7 to 5.0 m/d.…”

Section: Chronic 21-d Juvenile Toxicity Testsmentioning

confidence: 88%

Acute and Chronic Toxicity of Pesticide Formulations (Atrazine, Chlorpyrifos, Permethrin) to Glochidia and Juveniles of Lampsilis siliquoidea

Bringolf¹,

Cope²,

Barnhart³

et al. 2007

Environ Toxicol Chem

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Freshwater mussels are among the most imperiled faunal groups in North America; approximately 67% of the nearly 300 native freshwater mussel species (family Unionidae) are listed as endangered, threatened, or of special concern. Despite evidence that glochidia and juvenile life stages are highly sensitive to some chemical contaminants, the effects of pesticides on early life stages of unionid mussels are largely unknown. In the United States, pesticide registration is based on toxicity data of the active ingredient, not formulations as they are sold and applied. Some pesticide formulations, however, are more toxic than their active ingredient (technical‐grade pesticide) alone because of the presence of surfactants, adjuvants, or other ingredients in the formulation. The objective of the present study was to compare the toxicity of active ingredients of several current‐use pesticides (atrazine, chlorpyrifos, and permethrin) to the toxicity of pesticide formulations to glochidia and juvenile life stages of a freshwater mussel (Lampsilis siliquoidea). The atrazine formulation (Aatrex) was more toxic than technical‐grade atrazine in chronic tests with juvenile L. siliquoidea. For other pesticides, acute and chronic toxicity of technical‐grade pesticides were similar to the toxicity of pesticide formulations. Median effective concentrations for chlorpyrifos were 0.43 mg/L for glochidia at 48 h, 0.25 mg/L for juveniles at 96 h, and 0.06 mg/L for juveniles at 21 d. Atrazine and permethrin as well as their formulations did not cause significant acute toxicity in glochidia or juveniles at exposure concentrations approaching water‐solubility limits. Additional research is needed on other pesticides with different modes of action, on the role of different routes of exposure, and with other species of unionid mussels to evaluate similarities of toxic response.

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Histological and ultrastructural studies of larval and juvenile Lampsilis (Bivalvia) from the Upper Mississippi River

Cited by 19 publications

References 81 publications

Lethal and sublethal effects of ammonia to juvenile Lampsilis mussels (unionidae) in sediment and water‐only exposures

Lethal and sublethal effects of ammonia to juvenile Lampsilis mussels (unionidae) in sediment and water‐only exposures

A review of the effects of heavy metals on freshwater mussels

Acute and Chronic Toxicity of Pesticide Formulations (Atrazine, Chlorpyrifos, Permethrin) to Glochidia and Juveniles of Lampsilis siliquoidea

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