Assimilation and retention of selenium and other trace elements from crustacean food by juvenile striped bass (<i>Morone saxatilis</i>)

Baines, Stephen B.; Fisher, Nicholas S.; Stewart, Aubrey

doi:10.4319/lo.2002.47.3.0646

Cited by 67 publications

(77 citation statements)

References 31 publications

(42 reference statements)

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“…Of all of the metals examined, Cd shows the greatest variability in literature values. Our study concluded that 81 to 97% of Cd remains associated with the viscera, which is similar to values calculated in another killifish study (85% associated with the intestine; Dutton & Fisher 2011) Baines et al 2002), and killifish (50%; Mathews & Fisher 2008). This range of values indicates that some fish are better protected against the gastrointes ti nal uptake of Cd than others.…”

Section: Tissue Distribution Of Metalssupporting

confidence: 77%

Bioavailability of sediment-bound and algal metals to killifish Fundulus heteroclitus

Dutton¹,

Fisher²

2012

Aquat. Biol.

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We used a radiotracer technique to experimentally assess whether As(V), Cd, Cr(III), Hg(II), and methylmercury (MeHg) bound to sediment from 3 contaminated field sites (Baltimore Harbor, Elizabeth River, and Mare Island) and the green alga Dunaliella tertiolecta are bioavailable to killifish Fundulus hetero clitus. Algae are a component of the killifish diet in salt marshes, and although killifish do not actively consume sediment, some is accidentally ingested due to attachment to benthic prey. For both sediment and algae, the assimilation efficiencies (AE) of ingested metals were highest for MeHg, followed by Hg(II), As, and Cd, and lowest for Cr. Following sediment intubations, AE values ranged from 0.01−0.03% (Cr) to 10−14% (MeHg), and ranged from 0.7% (Cr) to 82% (MeHg) following algal intubation. Following sediment intubations, loss rate constants (k ef ) were similar for As, Cd, and Hg(II) and lowest for MeHg, whereas following algal intubation, the k ef values were highest for As, followed by Cr, Hg(II), and Cd, and lowest for MeHg. At the end of depuration, tissue distribution data showed that Cd and Hg(II) remained primarily associated with the viscera, whereas As and MeHg were distributed throughout the body. Calculated trophic transfer factors (TTF) showed that only MeHg bound to algae, and Elizabeth River sediment is expected to biomagnify at this trophic step (TTF > 1). Metals can accumulate to high concentrations in sediment in industrialized coastal areas, but the present study indicates that the risk of exposure for killifish from ingesting contaminated sediment is minimal.

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Section: Tissue Distribution Of Metalssupporting

confidence: 77%

Bioavailability of sediment-bound and algal metals to killifish Fundulus heteroclitus

Dutton¹,

Fisher²

2012

Aquat. Biol.

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“…Once the kinetic parameters are quantified, model predictions of metal concentrations in animal tissue can be made on a site-specific basis. When this has been done for marine and freshwater invertebrates and for fishes, model predictions have closely matched independent field measurements , Roditi et al 2000, Baines et al 2002, Griscom & Fisher 2002, suggesting that (1) we can account for the key processes governing metal concentrations in biota, and (2) the experimentally determined kinetic parameters are generally applicable to field conditions. It is not known to what extent the extensive data on aqueous metal uptake and retention by Mytilus edulis can be applied to polar regions.…”

Section: Introductionmentioning

confidence: 80%

Effects of temperature on uptake of aqueous metals by blue mussels Mytilus edulis from Arctic and temperate waters

Baines¹,

Fisher²,

Kinney³

2006

Mar. Ecol. Prog. Ser.

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Arctic waters are contaminated with metals and radionuclides from diverse sources. Here we present experimental results evaluating the bioaccumulation of dissolved metals by the mussel Mytilus edulis, widely used as a food source and also as a bioindicator of coastal contamination. We used radioisotopes to determine the uptake and excretion of Ag, Am, Cd, Co and Zn by M. edulis collected from both Arctic and temperate waters at 2 and 12°C. For both mussel populations, uptake rates (k u ) of Cd, Co and Zn were 50 to 60% slower at 2°C than at 12°C, mainly attributable to differences in mussel filtration rates at these temperatures, whereas uptake of Ag and Am was not affected by temperature. For both populations, the first-order loss constant for all metals from the slowest exchanging pool (k e ) was 20 to 50% smaller at 2°C than at 12°C. As well, the loss of Cd and Zn was significantly slower in the temperate mussels than in Arctic mussels. Because temperature had similar effects on uptake and efflux, the concentration factor for all metals from water (CF w = k u /k e ) did not vary significantly between temperatures, but CF w values for Cd and Zn in temperate mussels were 15-fold and 2.6-fold higher, respectively, than in Arctic mussels. Thus, while temperature does not exert a major influence on net bioaccumulation of aqueous metal by M. edulis, Arctic mussels may accumulate dissolved Cd and Zn to a lesser degree than temperate mussels. KEY WORDS: Contaminants · Kinetic modeling · Radionuclides · Bioaccumulation · Concentration factorsResale or republication not permitted without written consent of the publisher

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“…Among the many elements studied so far, the AE of MeHg and radiocesium in fishes are the highest (Ni et al 2000, Zhao et al 2001, Baines et al 2002. For example, the AE of radiocesium range between 78 and 95% in the marine mangrove snappers Lutjanus argentimaculatus (Zhao et al 2001).…”

Section: Discussionmentioning

confidence: 99%

Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 99%

“…Within the framework of the kinetic model, however, some important parameters need to be quantified, including the assimilation efficiency from the ingested prey, the uptake-rate constant from the aqueous phase, and the elimination-rate constant, as well as some physiological and geochemical parameters such as the feeding rate of the animals and the concentrations of metals in the water and in the dietary sources. Although the biokinetic parameters of metals have been extensively quantified in several species of marine animals, many of these parameters are not yet available for marine fishes (Baines et al 2002.The relative importance of Hg(II) and MeHg in the overall Hg bioaccumulation in fishes has been little studied. Whereas numerous studies have demonstrated that MeHg is the predominant Hg form (Bowles et al 2001, Kannan et al 1998 in fish muscle, it is not known whether it is directly accumulated from the ambient environment (including both aqueous and dietary sources) or is methylated within the fish body.…”

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confidence: 99%

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Bioaccumulation kinetics and exposure pathways of inorganic mercury and methylmercury in a marine fish, the sweetlips Plectorhinchus gibbosus

Wang¹,

Wong²

2003

Mar. Ecol. Prog. Ser.

142

111

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We experimentally determined the assimilation efficiency (AE) of ingested prey, the uptake-rate constant from the aqueous phase, and elimination-rate constant of both inorganic Hg (Hg [II]) and methylmercury (MeHg) in a marine predatory fish, the sweetlips Plectorhinchus gibbosus, using radiotracer techniques. The AE of Hg(II) and MeHg ranged between 10 and 27% and between 56 and 95%, respectively, for 3 different prey (copepods, silverside, and brine shrimp). The ingestion rate of the fish did not significantly affect the AE of Hg(II). Uptake of both species of Hg proceeded in a linear pattern, and the calculated uptake-rate constant was 0.195 and 4.515 l g -1 d -1 for Hg(II) and MeHg, respectively. Most of the accumulated Hg(II) was distributed in muscle tissues, whereas the accumulated MeHg was distributed evenly between gills and muscle tissues. The calculated elimination-rate constants for MeHg were 0.0103 and 0.0129 d -1 following dietary and aqueous uptake, respectively, whereas the elimination-rate constant of Hg(II) following dietary uptake (0.0547 d -1 ) was 1.9 times higher than the elimination following aqueous uptake (0.0287 d -1 ). These experimentally determined values were incorporated into a kinetic model to predict the exposure pathways and the relative contribution of Hg(II) and MeHg to the sweetlips. At the high end of the bioconcentration factor for both species of Hg in the prey, dietary ingestion is likely to be the main channel for their accumulation in the fish. The relative contribution of Hg(II) vs MeHg to the overall Hg bioaccumulation is largely controlled by the relative concentration of MeHg dissolved in seawater. Similar to the results of numerous field studies, the kinetic model predicted a potential trophic transfer factor of < 0.6 for Hg(II) and >1 for MeHg under conditions likely to be experienced by the fish in its natural environment. KEY WORDS: Mercury · Methylmercury · Exposure · Fish · Kinetic modeling Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 261: [257][258][259][260][261][262][263][264][265][266][267][268] 2003 bioavailability of these Hg species in marine fishes are less well studied (Pentreath 1976a,b, Honda et al. 1978, Barkay et al. 1997, Rouleau et al. 1998.Most previous studies measured the concentration of different Hg species in different tissues of fishes (Leah et al. 1991, Monteiro et al. 1996, Joiris et al. 2000. The routes of Hg accumulation, including the relative importance of different Hg species (inorganic and organic) and exposure pathways (aqueous vs dietary),are not yet well understood. Whereas it has generally been assumed that fishes accumulate MeHg mainly from dietary sources through very efficient assimilation of this compound (Mason 2002), it is quite possible that, because of its highly efficient absorption properties, they accumulate it from the aqueous phase also. Experimental studies on the routes of methylmercury exposure in fishes are indeed rather controversial (Honda et...

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Assimilation and retention of selenium and other trace elements from crustacean food by juvenile striped bass (Morone saxatilis)

Cited by 67 publications

References 31 publications

Bioavailability of sediment-bound and algal metals to killifish Fundulus heteroclitus

Bioavailability of sediment-bound and algal metals to killifish Fundulus heteroclitus

Effects of temperature on uptake of aqueous metals by blue mussels Mytilus edulis from Arctic and temperate waters

Bioaccumulation kinetics and exposure pathways of inorganic mercury and methylmercury in a marine fish, the sweetlips Plectorhinchus gibbosus

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