Variable tolerance to Copper in two species from San Francisco bay

Luoma, Samuel N.; Cain, Daniel J.; Ho, Kay T.; Hutchinson, Anne

doi:10.1016/0141-1136(83)90002-8

Cited by 34 publications

(12 citation statements)

References 12 publications

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“…This dual role of reproduction as a focus for the phenotypic expression of metal toxicity and metal resistance and its association with growth rate variations was indicated by increased egg production, partly compensating the delayed maturity imposed by reduced growth rate in the F2 generation exposed to Cu and Pb (Bengtsson, Gunnarsson & Rundgren. The adaptive response of 0. armatus from the Gusum area is at least partly induced by Cu, which is known to cause resistance reactions in a number of organisms (Ashida, Higashi & Kikuchi 1963;Brown 1976;Bryan & Gibbs 1983;Luoma et al 1983;Macnair 1987). The adaptive response of 0. armatus from the Gusum area is at least partly induced by Cu, which is known to cause resistance reactions in a number of organisms (Ashida, Higashi & Kikuchi 1963;Brown 1976;Bryan & Gibbs 1983;Luoma et al 1983;Macnair 1987).…”

Section: Discussionmentioning

confidence: 99%

Relative Abundance and Resistance Traits of Two Collembola Species Under Metal Stress

Tranvik¹,

Bengtsson²,

Rundgren³

1993

The Journal of Applied Ecology

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. British Ecological Society is collaborating with JSTOR to digitize, preserve and extend access to Journal of Applied Ecology. Summary 1. Population differentiation was studied in Onychiurus armatus (Tullb.) and Isotoma notabilis Schaffer from a reference site and two highly polluted (Cu, Zn) sites (long-term and short-term exposed, respectively) in the Gusum area, SE Sweden. 2. Growth, survival and reproduction were followed in a F1 generation of 0. armatus reared on a diet of the fungus Verticillium bulbillosum (W. Gams and Malla) grown on a series of Cu + Zn amended agar plates. Survival and reproduction were observed in a P generation of L notabilis incubated in soils with enhanced concentrations of Cu and Zn. 3. Metals affected growth rate but not mean maximum length of 0. armatus. The growth rates of both populations decreased significantly with increasing metal concentrations. Animals from the polluted site were less affected by metals and attained reproductive size earlier than those from the reference site. 4. Survival decreased with increasing metal exposure in both species, but there was no significant difference in survival between populations within the species. 5. Reproduction in terms of egg production (0. armatus) and number of juveniles (L notabilis) was significantly reduced by metals. 6. Higher overall reproduction rates were recorded for 0. armatus and I. notabilis from polluted sites compared with the reference sites. The difference between populations of both species reached a maximum in the most polluted treatments. 7. The rareness of I. notabilis in comparison with 0. armatus in the polluted soil could not be explained from a weaker phenotypic response to metals. In neither of the species was the population from the polluted site inferior to the reference population. 8. Selection for metal resistance in 0. armatus is suggested to operate on the body growth rate and for both species on the reproductive rate.

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Section: Discussionmentioning

confidence: 99%

Relative Abundance and Resistance Traits of Two Collembola Species Under Metal Stress

Tranvik¹,

Bengtsson²,

Rundgren³

1993

The Journal of Applied Ecology

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“…Even in Percuil Creek the levels of copper are generally still an order of magnitude higher than those found in genuineIy unpolluted sites (Bryan & Gibbs 1983). Luoma et al (1983) showed that tolerance to Cu in populations of Macoma balthica and the copepod Acartia clausivaried as much as 10-fold over short distances. Rygg (1985) suggested that a Cu concentration of 200 pg g -' represented a threshold concentration for polychaete communities.…”

Section: Discussionmentioning

confidence: 99%

Soft sediment meiofaunal community structure in relation to a long-term heavy metal gradient in the Fal estuary system

Somerfield¹,

Gee²,

Warwick³

1994

Mar. Ecol. Prog. Ser.

150

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The Fa1 estuary system, southwest England, is an ideal site for a natural experiment on the effects of long-term contamination by heavy metals on intertidal mudflat meiofauna communities. Five creeks were chosen in which sediment concentrations of heavy metals differed by orders of magnitude, namely Restronguet (mean Cu concentration 2532 pg g -' ) , Mylqr (1272 pg g-'), Pill (697 pg g -l ) , St Just in Roseland (332 pg g-l) and Percuil (165 pg g-l). Univariate and multivariate analyses of the meiofauna1 community structure in these creeks suggest that nematodes are more responsive to sediment heavy metal concentrations than copepods, as indices of diversity and changes in nematode community structure as revealed by multivariate analyses were closely correlated with metal levels For copepods differences could only be detected in Restronguet creek, where endobenthic species were absent. Analyses suggest that some nematode species may have developed different tolerance mechanisms for survival in areas with high heavy metal concentrations.

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“…Metal-tolerant populations of aquatic invertebrates have been identified in a number of instances in metal contaminated habitats (early examples include Bryan & Hummerstone 1971, 1973, Bryan & Gibbs 1983, Luoma et al 1983, Grant et al 1989). But there is little consistency in the literature about the processes involved in the manifestation of the tolerance.…”

Section: Introductionmentioning

confidence: 99%

Differences in trace metal bioaccumulation kinetics among populations of the polychaete Nereis diversicolor from metal-contaminated estuaries

Rainbow¹,

Smith²,

Luoma³

2009

Mar. Ecol. Prog. Ser.

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Aquatic organisms exposed to atypically high local bioavailabilities of a toxic metal may come under selection for changes in one or more physiological processes, including the rate of metal uptake from an available source of the metal, the rate of efflux and the rate of detoxification of accumulated metal into a relatively metabolically inert form. We investigated parameters of the bioaccumulation kinetics of the toxic metals Ag, Cd and Zn in populations of the estuarine polychaete worm Nereis diversicolor from differentially metal-contaminated sediments of 5 metal-rich estuaries in SW England and a relatively non-contaminated control estuary in SE England. One population (from Restronguet Creek, Cornwall) is known to be tolerant to raised availabilities of Zn and Cu. We compared uptake rate constants from solution (K u ) and assimilation efficiencies (AE) from sediment, and subsequent efflux rate constants (K e ) after uptake (from either water or ingested sediment) for each of the 3 metals among all populations. There was some limited interpopulation variation in the biodynamic parameters controlling bioaccumulation (and potential ecotoxicity) of trace metals between populations. There did not, however, appear to be consistent patterns to such variation. The basis of Zn tolerance in the Restronguet Creek population is not due to a reduction of Zn uptake from either solution or ingested sediment, or increased efflux of Zn accumulated after uptake from either route. The most likely mechanism is, therefore, an increased capacity for storage detoxification of Zn accumulated after regulation of Zn body concentration has broken down. KEY WORDS: Trace metals · Bioaccumulation · Biodynamics · Tolerance · Uptake assimilation · EffluxResale or republication not permitted without written consent of the publisher

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Variable tolerance to Copper in two species from San Francisco bay

Cited by 34 publications

References 12 publications

Relative Abundance and Resistance Traits of Two Collembola Species Under Metal Stress

Relative Abundance and Resistance Traits of Two Collembola Species Under Metal Stress

Soft sediment meiofaunal community structure in relation to a long-term heavy metal gradient in the Fal estuary system

Differences in trace metal bioaccumulation kinetics among populations of the polychaete Nereis diversicolor from metal-contaminated estuaries

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