Zebrafish Models in Neural and Behavioral Toxicology across the Life Stages
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ID: 109970
2020
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Abstract
The industry is increasingly relying on fish for toxicity assessment. However, current guidelines for toxicity assessment focus on teratogenicity and mortality. From an ecotoxicological point of view, however, these endpoints may not reflect the “full picture” of possible deleterious effects that can nonetheless result in decreased fitness and/or inability to adapt to a changing environment, affecting whole populations. Therefore, assessing sublethal effects add relevant data covering different aspects of toxicity at different levels of analysis. The impacts of toxicants on neurobehavioral function have the potential to affect many different life-history traits, and are easier to assess in the laboratory than in the wild. We propose that carefully-controlled laboratory experiments on different behavioral domains—including anxiety, aggression, and exploration—can increase our understanding of the ecotoxicological impacts of contaminants, since these domains are related to traits such as defense, sociality, and reproduction, directly impacting life-history traits. The effects of selected contaminants on these tests are reviewed, focusing on larval and adult zebrafish, showing that these behavioral domains are highly sensitive to small concentrations of these substances. These strategies suggest a way forward on ecotoxicological research using fish.
| Reference Key |
costa2020fisheszebrafish
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| Authors | Bruna Patricia Dutra Costa;Layana Aquino Moura;Sabrina Alana Gomes Pinto;Monica Lima-Maximino;Caio Maximino;Dutra Costa, Bruna Patricia;Aquino Moura, Layana;Gomes Pinto, Sabrina Alana;Lima-Maximino, Monica;Maximino, Caio; |
| Journal | fishes |
| Year | 2020 |
| DOI |
10.3390/fishes5030023
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| URL | |
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