Invasive alien species (IAS) represent one of the major threats to biodiversity, ecosystems, and public health worldwide. Among them, Trachemys scripta spp. is listed among the one hundred worst invasive species globally. Introduced into Europe and Italy primarily through the pet trade and subsequent intentional or accidental releases, the species has established itself across much of the territory, colonizing different aquatic habitats. Regulation (EU) No. 1143/2014 and Legislative Decree No. 230/2017 provide the regulatory framework of reference. Following these provisions, custody centers were established, including the Custody Center for Non-native Turtles within the Po Delta Regional Park, which receives numerous specimens of non-native freshwater turtles collected from across the provinces of Veneto. Living specimens admitted to the center were sampled for microbiological investigations. The main focus was placed on the detection of Salmonella, a zoonotic pathogen of major relevance to public health, in compliance with the obligation for non-native turtle custody centers to monitor and arrange the culling of positive specimens, as these species are capable of effectively harboring and transmitting the pathogen to humans and other animal species. In addition, the microbial flora introduced into the center with the admitted specimens was characterized through oropharyngeal and cloacal swabs, examined using standard bacteriological methods and the MALDI-TOF system. Carcasses recovered from the field, as well as specimens that died during their permanence in the custody center, were subjected to necropsy. In many cases, however, the state of decomposition represented a limiting factor, reducing the number of organs that could be examined and compromising the possibility of further diagnostic investigations. The results obtained allowed for the evaluation of the health risks posed by the presence of Trachemys scripta and other non-native turtles in the Italian territory, identifying a potential health threat from these species to both public and veterinary health. Consequently, measures to be included in a health protocol applicable to a custody center are discussed, aimed at safeguarding the animals, the personnel involved, and the population.
Le specie aliene invasive (IAS) rappresentano una delle principali minacce alla biodiversità, agli ecosistemi e alla salute pubblica a livello globale. Tra queste, Trachemys scripta spp. è considerata tra le cento peggiori specie invasive del mondo. Introdotta in Europa e in Italia principalmente attraverso il commercio di animali da compagnia e successivi rilasci intenzionali o accidentali, la specie si è stabilita in gran parte del territorio, colonizzando differenti ambienti acquatici. Il Regolamento (UE) n. 1143/2014 e il Decreto Legislativo n. 230 del 2017 costituiscono il quadro normativo di riferimento. A seguito di tali disposizioni sono stati istituiti i centri di custodia, tra cui il Centro di custodia tartarughe alloctone del Parco Regionale del Delta del Po, presso il quale vengono accolti numerosi esemplari di tartarughe palustri alloctone prelevate dal territorio di tutte le province del Veneto. In vita, gli esemplari accolti sono stati sottoposti a campionamento per indagini microbiologiche. Il principale interesse è stato rivolto verso la ricerca di Salmonella, in quanto patogeno zoonotico ad elevata rilevanza per la salute pubblica, e in ottemperanza all’obbligo per i centri di custodia di tartarughe alloctone di monitorare e predisporre l’abbattimento degli esemplari positivi ad essa, essendo specie in grado di veicolare e trasmettere efficacemente il patogeno ad esseri umani ed altre specie animali. In aggiunta è stata anche caratterizzata la flora microbica introdotta nel centro assieme agli esemplari accolti, indagata tramite tamponi orofaringei e cloacali, esaminati con metodiche batteriologiche standard e sistema MALDI-TOF. Le carcasse recuperate dal territorio, così come gli esemplari deceduti nel corso della loro permanenza presso il centro di custodia, sono stati sottoposti ad esame necroscopico. In numerosi casi, tuttavia, lo stato di decomposizione ha rappresentato un limite, che ha ridotto il numero di organi che è stato possibile indagare e ha pregiudicato la possibilità di proseguire con ulteriori approfondimenti diagnostici. I risultati ottenuti hanno permesso di valutare i rischi sanitari posti in essere dalla presenza di Trachemys scripta ed altre tartarughe alloctone sul territorio italiano, identificando una potenziale minaccia sanitaria di queste specie, sia per la sanità pubblica che veterinaria. Vengono quindi discusse le azioni da inserire in un protocollo sanitario applicabile ad un centro di custodia, a tutela degli animali, del personale coinvolto e della popolazione.
SPECIE ALIENE INVASIVE (Trachemys scripta): GESTIONE PRESSO IL CENTRO DI CUSTODIA TARTARUGHE ALLOCTONE NEL PARCO REGIONALE DELTA DEL PO
FACCHETTI, CRISTIAN
2024/2025
Abstract
Invasive alien species (IAS) represent one of the major threats to biodiversity, ecosystems, and public health worldwide. Among them, Trachemys scripta spp. is listed among the one hundred worst invasive species globally. Introduced into Europe and Italy primarily through the pet trade and subsequent intentional or accidental releases, the species has established itself across much of the territory, colonizing different aquatic habitats. Regulation (EU) No. 1143/2014 and Legislative Decree No. 230/2017 provide the regulatory framework of reference. Following these provisions, custody centers were established, including the Custody Center for Non-native Turtles within the Po Delta Regional Park, which receives numerous specimens of non-native freshwater turtles collected from across the provinces of Veneto. Living specimens admitted to the center were sampled for microbiological investigations. The main focus was placed on the detection of Salmonella, a zoonotic pathogen of major relevance to public health, in compliance with the obligation for non-native turtle custody centers to monitor and arrange the culling of positive specimens, as these species are capable of effectively harboring and transmitting the pathogen to humans and other animal species. In addition, the microbial flora introduced into the center with the admitted specimens was characterized through oropharyngeal and cloacal swabs, examined using standard bacteriological methods and the MALDI-TOF system. Carcasses recovered from the field, as well as specimens that died during their permanence in the custody center, were subjected to necropsy. In many cases, however, the state of decomposition represented a limiting factor, reducing the number of organs that could be examined and compromising the possibility of further diagnostic investigations. The results obtained allowed for the evaluation of the health risks posed by the presence of Trachemys scripta and other non-native turtles in the Italian territory, identifying a potential health threat from these species to both public and veterinary health. Consequently, measures to be included in a health protocol applicable to a custody center are discussed, aimed at safeguarding the animals, the personnel involved, and the population.| File | Dimensione | Formato | |
|---|---|---|---|
|
Cristian Facchetti.pdf
embargo fino al 19/10/2028
Dimensione
3.09 MB
Formato
Adobe PDF
|
3.09 MB | Adobe PDF |
The text of this website © Università degli studi di Padova. Full Text are published under a non-exclusive license. Metadata are under a CC0 License
https://hdl.handle.net/20.500.12608/94584