Low levels of copper reduce the reproductive success of a mobile invertebrate predator

Lee, C. K. M.; Johnston, Emma L.

doi:10.1016/j.marenvres.2007.02.004

Cited by 9 publications

(7 citation statements)

References 26 publications

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“…This suggests that the DOC concentration would be relatively low because ocean DOC concentrations are typically <1 mg C/L (Hansell et al ), which is less than the DOC concentration of 3.5 mg C/L that would be required for the BLM‐based Cu ECL to equal the threshold of <13 μg Cu/L. Further, Lee and Johnston () used a 0.2‐μm filter to minimize the reaction of Cu ions with organic particles, which potentially reduced the operationally defined DOC concentration by removing the 0.2‐ to 0.45‐μm colloidal fraction. These lines of evidence indicate that the BLM‐based ECL probably would have been protective against effects on barnacle feeding rate in the present study.…”

Section: Resultsmentioning

confidence: 99%

“…Barnacle. The second test in which the Cu toxicity threshold was less than its corresponding BLM-based ECL was conducted with a barnacle (B. variegatus; Lee and Johnston 2007). Test organisms were exposed to nominal Cu concentrations of 10 and 25 mg Cu/L in filtered natural seawater for 10 d and in the absence or presence of a predatory flatworm (Stylochus pygmaeus).…”

Section: Tests With Cu Toxicity Thresholds Less Than the Eclmentioning

confidence: 99%

“…Although uncertain, it appears likely that the filtered seawater used in the tests was low in DOC because Lee and Johnston (2007) cited Piola and Johnston (2006) in stating that the site is well flushed with oceanic water. This suggests that the DOC concentration would be relatively low because ocean DOC concentrations are typically <1 mg C/L (Hansell et al 2009), which is less than the DOC concentration of 3.5 mg C/L that would be required for the BLM-based Cu ECL to equal the threshold of <13 mg Cu/L.…”

Section: Tests With Cu Toxicity Thresholds Less Than the Eclmentioning

confidence: 99%

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Effects of copper on olfactory, behavioral, and other sublethal responses of saltwater organisms: Are estimated chronic limits using the biotic ligand model protective?

DeForest

Gensemer

Gorsuch³

et al. 2018

Enviro Toxic and Chemistry

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There is concern over whether regulatory criteria for copper (Cu) are protective against chemosensory and behavioral impairment in aquatic organisms. We compiled Cu toxicity data for these and other sublethal endpoints in 35 tests with saltwater organisms and compared the Cu toxicity thresholds with biotic ligand model (BLM)-based estimated chronic limits (ECL values, which are 20% effect concentrations [EC20s] for the embryo-larval life stage of the blue mussel [Mytilus edulis], a saltwater species sensitive to Cu that has historically been used to derive saltwater Cu criteria). Only 8 of the 35 tests had sufficient toxicity and chemistry data to support unequivocal conclusions (i.e., a Cu EC20 or no-observed-effect concentration could be derived, and Cu and dissolved organic carbon [DOC] concentrations were measured [or DOC concentrations could be inferred from the test-water source]). The BLM-based ECL values would have been protective (i.e., the ECL was lower than the toxicity threshold) in 7 of those 8 tests. In the remaining 27 tests, this meta-analysis was limited by several factors, including 1) the Cu toxicity threshold was a "less than" value in 19 tests because only a lowest-observed-effect concentration could be calculated and 2) Cu and/or DOC concentrations often were not measured. In 2 of those 27 tests, the ECL would not have been protective if based only on a conservatively high upper-bound DOC estimate. To facilitate future evaluations of the protectiveness of aquatic life criteria for metals, we urge researchers to measure and report exposure-water chemistry and test-metal concentrations that bracket regulatory criteria. Environ Toxicol Chem 2018;37:1515-1522. © 2018 SETAC.

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Section: Resultsmentioning

confidence: 99%

Section: Tests With Cu Toxicity Thresholds Less Than the Eclmentioning

confidence: 99%

Section: Tests With Cu Toxicity Thresholds Less Than the Eclmentioning

confidence: 99%

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Effects of copper on olfactory, behavioral, and other sublethal responses of saltwater organisms: Are estimated chronic limits using the biotic ligand model protective?

DeForest

Gensemer

Gorsuch³

et al. 2018

Enviro Toxic and Chemistry

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“…The use of successful asexual reproduction of juveniles as a toxicological endpoint essentially assesses effects of contaminants on two generations. Toxicity tests where offspring are produced during contaminant exposure have a high ecological relevance (Lee and Johnston 2007), and there is evidence that multigenerational contaminant exposure may result in a heightened sensitivity of a population (Kwok et al 2008). This highlights the potential for toxicological assessment of full development of exposed A. pulchella juveniles to and adult life-stage and their asexual reproductive output.…”

Section: Discussionmentioning

confidence: 99%

“…Stauber et al 2000;Correa et al 1999). A. pulchella asexual reproduction was affected by similar copper concentrations as fecundity in the marine polycheate Stylochus pygmaeus (Lee and Johnston 2007), and by lower concentrations than inhibited early development in a range of echinoderms (see review; King and Riddle 2001). In the copepod Tigropus japonicus, the time to first reproduction and offspring development were significantly delayed by exposure to 10 lg/L copper (Kwok et al 2008), reiterating the sensitivity of reproductive endpoints and the need for assessment of chronic sub-lethal toxicity.…”

Section: Relative Sensitivity Of Test Endpointmentioning

confidence: 95%

Effects of Cd, Co, Cu, Ni and Zn on asexual reproduction and early development of the tropical sea anemone Aiptasia pulchella

2014

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Currently few studies present sub-lethal toxicity data for tropical marine species, and there are no routine toxicity tests using marine cnidarians. The symbiotic sea anemone Aiptasia pulchella has been identified as a useful species for ecotoxicological risk assessment, and would provide a tropical marine cnidarian representative. Chronic sub-lethal toxicity tests assessing the effects of 28-day trace metal exposure on asexual reproduction in A. pulchella were investigated, and concentration-dependant reductions in the number of offspring that were produced were evident for all metal exposures. Metal concentration estimates causing 50% reductions in the numbers of asexually-reproduced juveniles after 28-day exposures (28-day effect concentrations 50%: EC50s) were 14 µg/L for copper, 63 µg/L for zinc, 107 µg/L for cobalt, 145 µg/L for cadmium, and 369 µg/L for nickel. Slightly higher 28-day EC50s of 16 µg/L for copper, 192 µg/L for zinc, 172 µg/L for cobalt, 185 µg/L for cadmium, and 404 µg/L for nickel exposures and were estimated based on reductions in the total number of live developed and undeveloped offspring. These sensitive and chronic sub-lethal toxicity estimates help fill the knowledge gap related to metal effects on cnidarians over longer exposure periods, and this newly-developed bioassay may provide a much needed tool for ecotoxicological risk assessment relevant to tropical marine environments.

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Crustaceans

Eisler¹

2010

Compendium of Trace Metals and Marine Biota

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Low levels of copper reduce the reproductive success of a mobile invertebrate predator

Cited by 9 publications

References 26 publications

Effects of copper on olfactory, behavioral, and other sublethal responses of saltwater organisms: Are estimated chronic limits using the biotic ligand model protective?

Effects of copper on olfactory, behavioral, and other sublethal responses of saltwater organisms: Are estimated chronic limits using the biotic ligand model protective?

Effects of Cd, Co, Cu, Ni and Zn on asexual reproduction and early development of the tropical sea anemone Aiptasia pulchella

Crustaceans

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