Academic Journal
Detection of Toxoplasma gondii in wild bivalves from the Kerguelen and Galapagos archipelagos: influence of proximity to cat populations, exposure to marine currents and kelp density
| العنوان: | Detection of Toxoplasma gondii in wild bivalves from the Kerguelen and Galapagos archipelagos: influence of proximity to cat populations, exposure to marine currents and kelp density |
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| المؤلفون: | Mosquera, Juan D., Escotte-Binet, Sandie, Poulle, Marie-Lazarine, Betoulle, Stéphane, St-Pierre, Yves, Caza, France, Saucède, Thomas, Zapata, Sonia, de los Angeles Bayas, Rosa, Ramirez-Villacis, Dario X., Villena, Isabelle, Bigot-Clivot, Aurélie |
| المساهمون: | Universidad San Francisco de Quito (USFQ), Epidémiosurveillance de protozooses à transmission alimentaire et vectorielle (ESCAPE), Université de Reims Champagne-Ardenne (URCA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), Stress Environnementaux et BIOsurveillance des milieux aquatiques (SEBIO), Institut National de l'Environnement Industriel et des Risques (INERIS)-Université de Reims Champagne-Ardenne (URCA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Normandie Université (NU)-SFR Condorcet, Université de Reims Champagne-Ardenne (URCA)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Centre National de la Recherche Scientifique (CNRS), Armand-Frappier Santé Biotechnologie Research Centre (INRS-AFSB), Institut National de la Recherche Scientifique Québec (INRS)-Pasteur Network (Réseau International des Instituts Pasteur), Biogéosciences UMR 6282 (BGS), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), French Polar Institute (IPEV programs n°1044 PROTEKER and n°409 IMMUNOTOXKER) and from the French Southern and Antarctic Territories administration.Federative Research Structure Cap-Santé (SFR Cap-Santé, France) with the PROTOKER project. |
| المصدر: | ISSN: 0020-7519 ; International Journal for Parasitology ; https://hal.science/hal-04724423 ; International Journal for Parasitology, 2024, 54 (12), pp.607-615. ⟨10.1016/j.ijpara.2024.06.001⟩ ; https://www.sciencedirect.com/science/article/pii/S0020751924001334?via%3Dihub. |
| بيانات النشر: | CCSD Elsevier |
| سنة النشر: | 2024 |
| المجموعة: | Université de Bourgogne (UB): HAL |
| مصطلحات موضوعية: | Oysters, Mussels, Oocysts, Protozoan, Mytilus edulis platensis, Saccostrea palmula, qPCR, [SDE]Environmental Sciences |
| الوصف: | International audience ; Oocysts of the protozoan Toxoplasma gondii are found in felid feces and can be washed into coastal waters, where they persist for months, attaching to algae and accumulating in invertebrates. We used wild bivalves to assess contamination of coastal waters of the Kerguelen and Galapagos archipelagos by this zoonotic parasite. Additionally, we leveraged the contrasting situations of these archipelagos to identify some potential drivers of contamination. In the Galapagos, with a cat density reaching 142 per km2, 15.38% of the sampled oysters (Saccostrea palmula) tested positive for T. gondii by quantitative real-time PCR (qPCR) (n = 260), and positive samples were found in all eight sampling sites. In Kerguelen, with 1-3 cats per km2, 40.83% of 120 tested mussels (Mytilus edulis platensis) were positive, and positive samples were found in four out of the five sampling sites. These findings provide evidence of T. gondii contamination in the coastal waters of these archipelagos. Furthermore, T. gondii-positive bivalves were found on islands located 20 km away (Galapagos) and 5 km away (Kerguelen) from the nearest cat population, indicating that T. gondii oocysts can disperse through waterborne mechanisms over several kilometers from their initial deposition site. In the Galapagos, where runoff is infrequent and all sites are exposed to currents, the prevalence of qPCR-positive bivalves did not show significant variations between sites (p = 0.107). In Kerguelen where runoff is frequent and site exposure variable, the prevalence varied significantly (p < 0.001). The detection of T. gondii in Kerguelen mussels was significantly correlated with the site exposure to currents (odds ratio (OR) 60.2, p < 0.001) and the on-site density of giant kelp forests (OR 2.624, p < 0.001). This suggests that bivalves can be contaminated not only by oocysts transported by currents but also by consuming marine aggregates containing oocysts that tend to form in kelp forests. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/pmid/38885873; PUBMED: 38885873 |
| DOI: | 10.1016/j.ijpara.2024.06.001 |
| الاتاحة: | https://hal.science/hal-04724423 https://hal.science/hal-04724423v1/document https://hal.science/hal-04724423v1/file/1-s2.0-S0020751924001334-main.pdf https://doi.org/10.1016/j.ijpara.2024.06.001 |
| Rights: | http://creativecommons.org/licenses/by/ ; info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.1CBBD7F5 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.ijpara.2024.06.001 |
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