Accumulation of Copper, Zinc, Cadmium, and Their Combinations by Three Freshwater Microalgae

Guanzon, Nicholas G.; Nakahara, Hiroyuki; Nishimura, K.

doi:10.2331/fishsci.61.149

Cited by 8 publications

(1 citation statement)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Diatoms are usually the most represented autotrophic group in aquatic biofilms (e.g., [95,96,[121][122][123], which makes them good biological indicators of water quality (e.g., [97,98,[124][125][126]). Diatom communities are likely to accumulate significant quantities of metals (e.g., [127][128][129][130]). Numerous works have described the toxicity mechanisms of metals in diatoms.…”

Section: Effects Of Arsenic Toxicity In Microorganisms and In Trophicmentioning

confidence: 99%

Biotic and Abiotic Factors Influencing Arsenic Biogeochemistry and Toxicity in Fluvial Ecosystems: A Review

Barral-Fraga

Barral

MacNeill

et al. 2020

IJERPH

View full text Add to dashboard Cite

This review is focused on the biogeochemistry of arsenic in freshwaters and, especially, on the key role that benthic microalgae and prokaryotic communities from biofilms play together in through speciation, distribution, and cycling. These microorganisms incorporate the dominant iAs (inorganic arsenic) form and may transform it to other arsenic forms through metabolic or detoxifying processes. These transformations have a big impact on the environmental behavior of arsenic because different chemical forms exhibit differences in mobility and toxicity. Moreover, exposure to toxicants may alter the physiology and structure of biofilms, leading to changes in ecosystem function and trophic relations. In this review we also explain how microorganisms (i.e., biofilms) can influence the effects of arsenic exposure on other key constituents of aquatic ecosystems such as fish. At the end, we present two real cases of fluvial systems with different origins of arsenic exposure (natural vs. anthropogenic) that have improved our comprehension of arsenic biogeochemistry and toxicity in freshwaters, the Pampean streams (Argentina) and the Anllóns River (Galicia, Spain). We finish with a briefly discussion of what we consider as future research needs on this topic. This work especially contributes to the general understanding of biofilms influencing arsenic biogeochemistry and highlights the strong impact of nutrient availability on arsenic toxicity for freshwater (micro) organisms.

show abstract

Section: Effects Of Arsenic Toxicity In Microorganisms and In Trophicmentioning

confidence: 99%

Biotic and Abiotic Factors Influencing Arsenic Biogeochemistry and Toxicity in Fluvial Ecosystems: A Review

Barral-Fraga

Barral

MacNeill

et al. 2020

IJERPH

View full text Add to dashboard Cite

show abstract

Field transplantation of the freshwater bivalve Corbicula fluminea along a polymetallic contamination gradient (river Lot, France): I. Geochemical characteristics of the sampling sites and cadmium and zinc bioaccumulation kinetics

Andrès

Baudrimont

Lapaquellerie

et al. 1999

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

Specimens of the Asiatic clam Corbicula fluminea were transplanted from a clean lacustrine site to four stations along a polymetallic gradient in the river Lot (France), downstream from an old Zn ore treatment facility. The bivalves were held in benthic cages for a 5-month exposure period, April to September 1996; mollusk growth and metal bioaccumulation kinetics (Cd, Zn) were followed by subsampling the cages at t ϭ 0, 21, 49, 85, 120, and 150 d. Rates of Cd bioaccumulation in the whole soft bodies and in individual organs were greater at the upstream stations located close to the pollution source, but there was no direct proportionality between Cd in the bivalves and in the unfiltered or filtered river water samples. Unlike the case for Cd, rates of Zn bioaccumulation did not reflect the contamination gradient. Marked growth differences were measured among the four stations, reflecting both nutritional differences and changes in the degree of metal contamination; these growth differences produced markedly different trends when metal bioaccumulation was expressed in terms of burdens rather than concentrations.

show abstract

Consistency in Diatom Response to Metal-Contaminated Environments

Morin

Cordonier²,

Lavoie

et al. 2012

The Handbook of Environmental Chemistry

View full text Add to dashboard Cite

Accumulation of Copper, Zinc, Cadmium, and Their Combinations by Three Freshwater Microalgae

Cited by 8 publications

References 12 publications

Biotic and Abiotic Factors Influencing Arsenic Biogeochemistry and Toxicity in Fluvial Ecosystems: A Review

Biotic and Abiotic Factors Influencing Arsenic Biogeochemistry and Toxicity in Fluvial Ecosystems: A Review

Field transplantation of the freshwater bivalve Corbicula fluminea along a polymetallic contamination gradient (river Lot, France): I. Geochemical characteristics of the sampling sites and cadmium and zinc bioaccumulation kinetics

Consistency in Diatom Response to Metal-Contaminated Environments

Contact Info

Product

Resources

About