Ecological responses to contamination: A meta-analysis of experimental marine studies

O’Brien, Allyson L.; Keough, Michael J.

doi:10.1016/j.envpol.2014.09.005

Cited by 27 publications

(19 citation statements)

References 35 publications

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“…Recent meta-analysis studies have assessed the effect of contaminants on different biological levels, including species. For example, O’Brien and Keough (2014) suggest that we may expect substantial variation in life history response responses to a range of contaminants, driven by identity of contaminant, the identity of organism (taxa), and the scale of biological organization at which assessment is made (individuals, population, and community). A meta-analysis using 216 studies on the effect of toxic pollutants on marine communities also detected a strong reduction in species richness (Johnston and Roberts 2009).…”

Section: Discussionmentioning

confidence: 99%

The Chronic Effects of Copper and Cadmium on Life History Traits Across Cladocera Species: A Meta-analysis

Sadeq

Beckerman

2018

Arch Environ Contam Toxicol

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The effect of sublethal concentrations of heavy metals on cladoceran growth and reproduction is a cornerstone of modern ecotoxicology. However, the literature contains assays across numerous concentrations, on numerous species and genotypes, and conditions are far from consistent. We undertook a systematic review of the sublethal effects of copper and cadmium concentrations on Cladocera spp. life history (reproduction, maturation age, and somatic growth rate). Using meta-analysis, we tested the hypothesis that the effects of increasing Cu and Cd concentrations on traits may vary by species. We also evaluated where possible whether the effect of metal concentrations on traits vary by water hardness, exposure duration, or whether the metals were delivered in aqueous solution or via food. We surveyed > 200 papers, resulting in a set of 32 experimental studies representing 446 trials where the results were presented compared with Daphnia magna-the most commonly assayed species. We found qualitatively similar effects of Cu and Cd on life history traits that included reduction in reproduction and somatic growth rate and delay of maturation. Cladocera species showed marked variations in their susceptibility to metals, and D. magna was found to be the least sensitive species to sublethal changes in reproduction. The effects were largely consistent for aqueous vs. dietary food. Water hardness, where data were available, had no detectable effect. Available data indicate that exposure duration had no effect on the toxicity of Cu but did for D. magna reproductive response to Cd. Our study highlights the importance of including species identity when considering toxicological testing and regulation development.

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Section: Discussionmentioning

confidence: 99%

The Chronic Effects of Copper and Cadmium on Life History Traits Across Cladocera Species: A Meta-analysis

Sadeq

Beckerman

2018

Arch Environ Contam Toxicol

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“…However, the roles of Pb 2+ in the enzymes of ocean invertebrates have not been well elucidated. For this reason, it is interesting to study the roles of Pb 2+ on enzymes in aquatic organisms in accordance with ocean pollution [23]. In the case of creatine kinase (ATP: creatine kinase N-phosphotransferase, EC 2.7.3.2), which catalyzes the analogous reaction, Pb 2+ directly induces the loss of creatine kinase activity accompanied by structural unfolding and hydrophobic exposure [24].…”

Section: Introductionmentioning

confidence: 99%

Molecular dynamics simulations integrating kinetics for Pb2+-induced arginine kinase inactivation and aggregation

Lee

Cai

et al. 2015

Process Biochemistry

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“…These responses are often used as indicators of broader‐scale impacts (Picado et al . ; O'Brien & Keough ). For management, it is important to establish if these responses reflect changes at other levels of biological organization and relate to higher‐order biological effects in populations or communities (Kefford et al .…”

Section: Introductionmentioning

confidence: 99%

“…Sediment toxicity is most often measured at the individual level (dry weight, survival), and sometimes at the subindividual (through gene, metabolite or proteins) or population levels (reproduction, first-generation responses) (Burton 1991;Forbes & Forbes 1994;Chapman 1995). These responses are often used as indicators of broaderscale impacts (Picado et al 2007;O'Brien & Keough 2014). For management, it is important to establish if these responses reflect changes at other levels of biological organization and relate to higher-order biological effects in populations or communities (Kefford et al 2004;Forbes, Palmqvist & Bach 2006;O'Brien & Keough 2014).…”

Section: Introductionmentioning

confidence: 99%

“…These responses are often used as indicators of broaderscale impacts (Picado et al 2007;O'Brien & Keough 2014). For management, it is important to establish if these responses reflect changes at other levels of biological organization and relate to higher-order biological effects in populations or communities (Kefford et al 2004;Forbes, Palmqvist & Bach 2006;O'Brien & Keough 2014). Individual and subindividual responses provide important causal links to exposure, but links with higher-order changes is required to establish environmental relevance (Beketov & Liess 2012;Rasmussen et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Detecting copper toxicity in sediments: from the subindividual level to the population level

Jeppe

Yang

Long

et al. 2016

Journal of Applied Ecology

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Summary Sediments accumulate chemicals that can be toxic to biota and often contribute to aquatic ecosystem decline. Measuring mortality in laboratory‐bred organisms is a common way to assess sediment toxicity. However, mortality‐based responses of resilient laboratory organisms may not reflect indigenous macroinvertebrate responses, which can be relatively more sensitive to sediment toxicants. A possible solution is to also measure responses at the subindividual level. Several organism responses to sediment copper toxicity were assessed in a field‐based microcosm. Responses of laboratory‐bred chironomids and snails deployed in microcosms were compared at subindividual (metabolomic and gene expression), individual (survival and dry weight) and population (reproduction) levels, and contrasted to the abundance of colonizing macroinvertebrates in the microcosms. Colonizing macroinvertebrate abundance showed a range of sensitivities based on EC50 (effect dose 50% change). Chironomidae made up 94·5% of the microcosm macroinvertebrates, with Paratanytarsus the most sensitive genus (EC50: 89 mg kg−1 copper) and Procladius the least sensitive (EC50: 681 mg kg−1). Survival of laboratory‐bred organisms was the least sensitive response, comparable to decreased abundance of the least sensitive macroinvertebrate. Juvenile production in the snail, Potamopyrgus antipodarum, was the most sensitive population‐level response (EC50: 121 mg kg−1), in contrast the snail Physella acuta was relatively more tolerant (EC50: 298 mg kg−1). Changes in subindividual responses (gene expression and metabolite abundance) in laboratory‐bred chironomid, Chironomus tepperi, were evident at 60 mg kg−1. These changes likely reflect the direct effects of copper exposure and represent metal‐specific responses. Synthesis and applications. We showed that copper toxicity in sediments could be readily detected through changes in gene expression and metabolites in laboratory‐bred chironomids exposed in field‐based microcosms. These responses were more sensitive than mortality, and detected copper levels that caused microcosm chironomid populations to decline. These novel approaches will provide managers with new tools to better assess sediment toxicity.

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Ecological responses to contamination: A meta-analysis of experimental marine studies

Cited by 27 publications

References 35 publications

The Chronic Effects of Copper and Cadmium on Life History Traits Across Cladocera Species: A Meta-analysis

The Chronic Effects of Copper and Cadmium on Life History Traits Across Cladocera Species: A Meta-analysis

Molecular dynamics simulations integrating kinetics for Pb2+-induced arginine kinase inactivation and aggregation

Detecting copper toxicity in sediments: from the subindividual level to the population level

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