Superoxide Production by the Red Tide-Producing Chattonella marina Complex (Raphidophyceae) Correlates with Toxicity to Aquacultured Fishes
Rattachement africain : jp. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
The marine raphidophyte Chattonella marina complex forms red tides, causing heavy mortalities of aquacultured fishes in temperate coastal waters worldwide. The mechanism for Chattonella fish mortality remains unresolved. Although several toxic chemicals have been proposed as responsible for fish mortality, the cause is still unclear. In this study, we performed toxicity bioassays with red sea bream and yellowtail. We also measured biological parameters potentially related to ichthyotoxicity, such as cell size, superoxide (O2•−) production, and compositions of fatty acids and sugars, in up to eight Chattonella strains to investigate possible correlations with toxicity. There were significant differences in moribundity rates of fish and in all biological parameters among strains. One strain displayed no ichthyotoxicity even at high cell densities. Strains were categorized into three groups based on cell length, but this classification did not significantly correlate with ichthyotoxicity. O2•− production differed by a factor of more than 13 between strains at the late exponential growth phase. O2•− production was significantly correlated with ichthyotoxicity. Differences in fatty acid and sugar contents were not related to ichthyotoxicity. Our study supports the hypothesis that superoxide can directly or indirectly play an important role in the Chattonella-related mortality of aquacultured fishes.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Superoxide Production by the Red Tide-Producing Chattonella marina Complex (Raphidophyceae) Correlates with Toxicity to Aquacultured Fishes
- Date Crossref
- 17/10/2021
- Éditeur
- MDPI AG
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Japan Fisheries Research and Education Agency pays non établi dans la noticeOrganisme public
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Saitama University pays non établi dans la noticeUniversité ou école supérieure
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University of Miyazaki pays non établi dans la noticeUniversité ou école supérieure
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National Fisheries University Department of Applied Aquabiology pays non établi dans la noticeUniversité ou école supérieure
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Fisheries Technology Institute pays non établi dans la noticeStructure de recherche
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Graduate School of Science and Engineering Department of Biochemistry and Molecular Biology pays non établi dans la noticeUniversité ou école supérieure
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Faculty of Agriculture Department of Marine Biology and Environmental Sciences pays non établi dans la noticeUniversité ou école supérieure
Japan Fisheries Research and Education Agency, Saitama University et University of Miyazaki, avec 4 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.