Comparison of tropical and temperate freshwater animal species' acute sensitivities to chemicals: Implications for deriving safe extrapolation factors

Kwok, Kevin Wh; Leung, Kenneth M.Y.; Lui, Gilbert S G; Chu, Vincent Kh; Lam, Patrick T.I.; Morritt, David; Maltby, Lorraine; Brock, T.C.M.; Brink, Paul J. Van den; Warne, Michael St. J.; Crane, Mark

doi:10.1002/ieam.5630030105

Cited by 182 publications

(150 citation statements)

References 47 publications

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“…The results of these studies have been inconsistent. Hobbs et al (2004) and Kwok et al (2007) both found species from different regions had higher, equal and lower sensitivities with no apparent reason for the differences. While Chapman et al (2006) did not find any consistent trend in sensitivity across three climatic zones (temperate, tropical and polar), they nonetheless concluded that "toxicity data from one geographic region will not be universally protective of other regions.…”

Section: Regional Specificitymentioning

confidence: 97%

Revisions to the derivation of the Australian and New Zealand guidelines for toxicants in fresh and marine waters

Warne

Batley

Braga³

et al. 2013

Environ Sci Pollut Res

127

280

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The Australian and New Zealand Guidelines for Fresh and Marine Water Quality are a key document in the Australian National Water Quality Management Strategy. These guidelines released in 2000 are currently being reviewed and updated. The revision is being co-ordinated by the Australian Department of Sustainability, Environment, Water, Population and Communities, while technical matters are dealt with by a series of Working Groups. The revision will be evolutionary in nature reflecting the latest scientific developments and a range of stakeholder desires. Key changes will be: changing the guidelines to an electronic format; increasing the types and sources of data that can be used; working collaboratively with industry to permit the use of commercial-in-confidence data; increasing the minimum data requirements; including a measure of the uncertainty of the trigger value; improving the software used to calculate trigger values; increasing the rigour of site-specific trigger values; improving the method for assessing the reliability of the trigger values; providing guidance of measures of toxicity and toxicological endpoints that may, in the near future, be appropriate for trigger value derivation. These changes will markedly improve the number and quality of the trigger values that can be derived and will increase end-users' ability to understand and implement the Guidelines in a scientifically rigorous manner.

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Section: Regional Specificitymentioning

confidence: 97%

Revisions to the derivation of the Australian and New Zealand guidelines for toxicants in fresh and marine waters

Warne

Batley

Braga³

et al. 2013

Environ Sci Pollut Res

127

280

View full text Add to dashboard Cite

show abstract

“…Like in many other tropical countries, few studies into the fate and environmental side effects of pesticides have been conducted in Thailand (Bourdeau et al 1989;Ecobichon 2001;Racke 2003;Kwok et al 2007). The Thai ecotoxicologic literature consists almost entirely of determinations of LC 50 values for various freshwater species using laboratory tests (Campbell and Parnrong 2001).…”

mentioning

confidence: 99%

Direct and Indirect Effects of the Fungicide Carbendazim in Tropical Freshwater Microcosms

Daam

Satapornvanit

Brink

et al. 2009

Arch Environ Contam Toxicol

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Direct and indirect effects of the fungicide carbendazim on ecosystem structure and functioning were studied B8 weeks after application (nominal concentrations: 0, 3.3, 33, 100, and 1000 lg/L) to outdoor microcosms in Thailand. Direct effects on macroinvertebrates are discussed in detail in a separate article. The present article presents the effects on other end points and discusses the hypothesized ecologic effect chain. Negative treatment effects on the zooplankton community were only recorded for the highest carbendazim treatment (NOEC community = 100 lg/L). The rotifer Keratella tropica, cladocerans (Moina micrura, Ceriodaphnia cornuta, and Diaphanosoma sp.), and cyclopoid copepods were decreased or even eliminated at this treatment level. The decrease in zooplankton and macroinvertebrate abundances was accompanied by an increase in numbers of several tolerant invertebrates, presumably caused by a release from competition and predation. The death of sensitive invertebrates probably also led to an overall decreased grazing pressure because increased levels of chlorophyll-a and bloom of the floating macrophyte Wolffia sp. were noted. The increase in primary producers is discussed to be the probable cause of changes in physicochemical water conditions, eventually resulting in an anoxic water layer during the last 3 weeks of the experiment. This is likely to have resulted in decreased invertebrate abundances noted in that period. Furthermore, the decreased decomposition of Musa (banana) leaves observed 8 weeks after application is considered to be the indirect effect of a decreased microbial activity resulting from these anoxic water conditions, rather than a direct toxic effect of carbendazim.

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“…It is commonly thought that different ecosystems contain different biological constituents, and a concentration threshold that would be harmless in one ecosystem may lead to irreversible toxic effects on others. The potential use of toxicity data for nonnative species to derive WQC is controversial, due to the fact that it is sometimes questioned whether criteria based on species from one geographical region provide appropriate protection for species in a different region (Maltby et al 2005;Kwok et al 2007). However, this uncertainty could not be resolved previously in large part due to the paucity of toxicity data applicable for local species.…”

Section: Representative Speciesmentioning

confidence: 99%

Development of aquatic life criteria in China: viewpoint on the challenge

Jin

Wang

Giesy

et al. 2013

Environ Sci Pollut Res

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While more developed countries have a wellestablished systems to develop water quality criteria (WQC), little research has been done on the adequacy of the current WQC to protect endemic species of China. In order to maintain the health of aquatic ecosystems in China, a series of projects to establish national WQC based on regional characteristics has recently been initiated. However, the establishment of a completely novel methodology would be costly and time consuming. Also, due to the similarities in physiologies and natural histories of classes of aquatic organisms, there is no reason to believe that WQC would not be sufficient to protect unique species in China. This review was undertaken to identify key outstanding issues regarding establishment of aquatic life criteria (ALC) to be applied in China, including prioritization of chemicals, test species, mode of action, field/semi-field data, and methods of aggregating the information and calculating the ALC. This was used to identify the principle issues that need to be addressed in order to better understand the methods for development of criteria for the protection of aquatic life and provide a reference to China and other developing countries committed to the establishment of their own WQC system.

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Comparison of tropical and temperate freshwater animal species' acute sensitivities to chemicals: Implications for deriving safe extrapolation factors

Cited by 182 publications

References 47 publications

Revisions to the derivation of the Australian and New Zealand guidelines for toxicants in fresh and marine waters

Revisions to the derivation of the Australian and New Zealand guidelines for toxicants in fresh and marine waters

Direct and Indirect Effects of the Fungicide Carbendazim in Tropical Freshwater Microcosms

Development of aquatic life criteria in China: viewpoint on the challenge

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