Acartia tonsa Dana 1849 as a Model Organism: Considerations on Acclimation in Ecotoxicological Assays

Lopes, Laís Fernanda de Palma; Agostini, Vanessa Ochi; Moreira, Raquel Aparecida; Muxagata, Erik

doi:10.1007/s00128-021-03175-x

Cited by 8 publications

(7 citation statements)

References 25 publications

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“…Coastal regions have been shown to react quickly to environmental changes, and zooplankton, in particular copepods, could be considered effective bioindicators for marine and estuarine ecosystems (Charry et al, 2019; Hussain et al, 2020; Kwok et al, 2015; Lopes et al, 2021; Tlili et al, 2016). Copepods are found in almost all aquatic habitats, making them globally relevant for ecotoxicity studies while retaining the capacity to investigate localized responses to anthropogenic contaminants (Kulkarni et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Investigating the Ecotoxicity of Select Emerging Organic Contaminants Toward the Marine Copepod Gladioferens pectinatus

Barrick

Champeau

Butler

et al. 2022

Enviro Toxic and Chemistry

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Estuarine ecosystems are recipients of anthropogenic stressors released from land‐based activities. The aim of the present study was to investigate the ecotoxicological hazards of organic contaminants toward the estuarine copepod Gladioferens pectinatus using acute and chronic testing. Most chemicals demonstrated acute toxicity and influenced development of the copepods. Further research should be conducted to investigate these chemicals and their mixtures using long‐term, multigenerational testing to characterize mechanisms of toxicity. Environ Toxicol Chem 2022;41:792–799. © 2022 SETAC

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Section: Discussionmentioning

confidence: 99%

Investigating the Ecotoxicity of Select Emerging Organic Contaminants Toward the Marine Copepod Gladioferens pectinatus

Barrick

Champeau

Butler

et al. 2022

Enviro Toxic and Chemistry

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“…Copepods are the most numerically abundant multicellular zooplankton in the water column, an important link in marine food webs, 42,43 and an established model organism used to assess aquatic toxicities. 44 Note that the toxicity of oil photoproducts discussed here is different from the photoenhanced (or photosensitized) toxicity that can be observed when aquatic organisms are exposed to UV light after they have accumulated PAHs. 21,45−47 Photoenhanced toxicity is based on cell damage resulting from photochemically produced reactive species that are formed in the organisms.…”

Section: ■ Introductionmentioning

confidence: 88%

“…For the toxicity assays, we chose three copepod species (Acartia tonsa, Temora longicornis, and Calanus finmarchicus) that range from coastal to offshore animals. Copepods are the most numerically abundant multicellular zooplankton in the water column, an important link in marine food webs, , and an established model organism used to assess aquatic toxicities …”

Section: Introductionmentioning

confidence: 99%

Changes in Chemical Composition and Copepod Toxicity during Petroleum Photo-oxidation

Katz

Chen

Fields

et al. 2022

Environ. Sci. Technol.

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Photoproducts can be formed rapidly in the initial phase of a marine oil spill. However, their toxicity is not well understood. In this study, oil was irradiated, chemically characterized, and tested for toxicity in three copepod species (Acartia tonsa, Temora longicornis, and Calanus finmarchicus). Irradiation led to a depletion of polycyclic aromatic hydrocarbons (PAHs) and n-alkanes in oil residues, along with an enrichment in aromatic and aliphatic oil photoproducts. Target lipid model-based calculations of PAH toxicity units predicted that PAH toxicities were lower in water-accommodated fractions (WAFs) of irradiated oil residues (“irradiated WAFs”) than in WAFs of dark-control samples (“dark WAFs”). In contrast, biomimetic extraction (BE) measurements showed increased bioaccumulation potential of dissolved constituents of irradiated WAFs compared to dark WAFs, mainly driven by photoproducts present in irradiated oil. In line with the BE results, copepod mortality increased in irradiated WAFs compared to dark WAFs. However, low copepod toxicities were observed for WAFs produced with photo-oxidized oil slicks collected during the Deepwater Horizon oil spill. The results of this study suggest that while oil photoproducts have the potential to be a significant source of copepod toxicity, dilution and dispersion of these higher solubility products appear to help mitigate their toxicity at sea.

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“…Experiments use marine copepods acclimatized in the laboratory for long periods (ISO 14669, 1999) or kept in the laboratory for a relatively short time after collection (Finiguerra et al, 2013;Sun et al, 2015). Both methods can influence the results of experiments since the long-term maintenance of organisms in the laboratory can decrease genetic variability over time (Lopes et al, 2021), and freshly collected individuals need to be acclimatized.…”

Section: Aims and Backgroundmentioning

confidence: 99%

Culture Techniques for Acartia clausi from the Romanian Black Sea coastal waters

Harcotă¹,

Bișinicu²,

Timofte³

et al. 2022

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As copepods are an important food source for most fish larvae, there is a continuing interest in developing techniques for culturing marine copepods as live food in aquaculture. Studies have shown that several species of calanoid copepods can be used successfully in aquaculture, acclimatized and grown in the laboratory over several generations and serve as testing organisms in acute toxicity tests. However, significant difficulties in cultivating calanoid copepods in high quantities were reported. They are related to their low tolerance to changes in water quality and reduced production capacity compared to other taxonomic groups. Therefore, working methods for obtaining viable cultures of calanoid copepods are dependent highly on the local environmental context. Until now, such a method has not been implemented for calanoid species from the Romanian Black Sea coast. This paper details the methodology we adapted and used for achieving a viable Acartia (Acartiura) clausi (Giesbrecht, 1889) culture using specimens collected along the Romania Black Sea coast Reproduction and egg hatching occurred under laboratory-controlled conditions, and viable individuals of A. clausi were obtained. Our results open the possibility of integrating this species in toxicity tests and food production for the marine aquaculture industry.

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Acartia tonsa Dana 1849 as a Model Organism: Considerations on Acclimation in Ecotoxicological Assays

Cited by 8 publications

References 25 publications

Investigating the Ecotoxicity of Select Emerging Organic Contaminants Toward the Marine Copepod Gladioferens pectinatus

Investigating the Ecotoxicity of Select Emerging Organic Contaminants Toward the Marine Copepod Gladioferens pectinatus

Changes in Chemical Composition and Copepod Toxicity during Petroleum Photo-oxidation

Culture Techniques for Acartia clausi from the Romanian Black Sea coastal waters

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