Sea Turtle Parasites

Santoro, Mario; Mattiucci, Simonetta

doi:10.1007/978-1-4020-8278-8_48

Cited by 12 publications

(10 citation statements)

References 46 publications

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“…The turtle in this study had ingested mainly algae that is unusual for this species and would indicate inability to forage effectively in its environment. It might explain the rich helminth fauna here found since sea turtles with vegetarian diet would ingest accidentally and more easily great amount of mollusk intermediate hosts whose live on marine pasture with respect to turtles with mainly spongivorous or carnivorous habits (Pérez Ponce de León et al, 1996;Santoro et al, 2006Santoro et al, , 2010Santoro & Mattiucci, 2009). Infection by spirorchiid flukes represents the main parasitological health problem of sea turtles.…”

Section: Discussionmentioning

confidence: 87%

“…Tissue samples from all examined organs were fixed in 10 % neutral buffered formalin, embedded in paraffin, sectioned at 6 µm, and stained with haematoxylin and eosin. Finally, since most of helminths of sea turtles are transmitted through the trophic chain (Santoro & Mattiucci, 2009;Greiner, 2013), stomach contents were classified by stereomicroscope observation (Casale et al, 2008).…”

Section: Methodsmentioning

confidence: 99%

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Helminths of hawksbill turtle (Eretmochelys imbricata) from the Pacific coast of Costa Rica

et al. 2015

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SummaryParasitological examination of a stranded hawksbill turtle (Eretmochelys imbricata) from Pacific coast of Costa Rica revealed the presence of a rich digenean fauna including Carettacola stunkardi (Spirorchiidae), Enodiotrema reductum (Plagiorchiidae), Cricocephalus albus, Adenogaster serialis, Epibathra crassa, Pleurogonius lobatus, P. trigonocephalus, P. linearis, and Pyelosomum posterorchis (Pronocephalidae). All helminths except C. albus and P. lobatus represent new geographical records for Costa Rica. Carettacola stunkardi is reported for first time in an Eastern Pacific hawksbill turtle and its pathological changes are here described. Histologically, nodular lesions on the serosal surface of intestine revealed a mixed infiltrate of heterophils, lymphocytes, and histiocytes within necrotic debris. Granulomas with spirorchiid eggs were observed in the mucosa, sub-mucosa and muscular layers of stomach and intestine, gallbladder and liver.

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Section: Discussionmentioning

confidence: 87%

Section: Methodsmentioning

confidence: 99%

Helminths of hawksbill turtle (Eretmochelys imbricata) from the Pacific coast of Costa Rica

et al. 2015

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“…La riqueza de especies de parásitos está ligada al uso de hábitat y hábitos alimenticios de los quelonios en las diferentes áreas geográficas donde se distribuyen . El género Chelonia es considerado herbívoro (Santoro & Mattiucci 2009), sin embargo la tortuga verde consume una variedad de presas en la costa peruana, por lo que es considerada omnívora. Este hecho ha sido comprobado en las principales zonas de alimentación de Perú como la Bahía de Paracas y la Bahía de Sechura, donde se encuentra el Estuario Virrilá (Paredes 2015, IMARPE 2016.…”

Section: Discussionunclassified

“…Es por esta razón que es más frecuente hallar estos parásitos en especies de tortugas marinas herbívoras. Incluso alguno digeneos se encuentran en la vegetación marina una vez que abandonan a los moluscos (Santoro & Mattiucci 2009). En el caso de nuestra costa, los parásitos podrían ser adquirirlos de las algas y moluscos de los que se alimenta (IMARPE 2016).…”

Section: Discussionunclassified

Primer reporte de Cricocephalus albus (Digenea: Pronocephalidae) en el Perú, parásito de la tortuga verde del Pacífico Este (Chelonia mydas agassizii)

et al. 2017

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Información sobre los autores:LAG-P: realizó el analisis, la identificaciones y escribio el manuscrito; LAG-P, MVB, JQ, SQ, DT, JM: realizaron las colectas de campo, revisaron y aprobaron el manuscrito.Los autores no incurren en conflictos de intereses. Presentado:16/01/2017 Aceptado:13/06/2017 Publicado online: 20/07/2017 ResumenSe registra por primera vez para Perú a Cricocephalus albus (Digenea: Pronocephalidae) en la tortuga verde del Pacífico oriental (Chelonia mydas agassizii). Los parásitos fueron colectados durante la necropsia de una tortuga verde varada en el estuario de Virrilá localizado en la provincia de Sechura, Departamento de Piura, Perú. El presente trabajo realiza una breve descripción de C. albus, así como la discusión de sus hospederos y distribución geográfica.Palabras clave: Trematoda; Plagiorchiida; Cricocephalus albus; quelonio; Chelonia mydas agassizii; Virrilá. AbstractCricocephalus albus (Digenea: Pronocephalidae) is registered for first time in Peru in the East Pacific green turtle (Chelonia mydas agassizii). The parasites were collected during a necropsy carried out in a stranded sea turtle in the Virrilá estuary, located in the Sechura province of Piura, Peru. The specimens were studied morphologically and identified as C. albus. The current work describes C. albus, as well as the discussion of its hosts and geographic distribution.

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“…Different factors influence the extent of damage a parasite may cause, such as the species of 386 parasite and the general fitness of the host, habitat and availability of intermediate host (53,54).…”

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confidence: 99%

Disease Risk Analysis in sea turtles: A baseline study to inform conservation efforts

Mashkour

Jones

Hipolito

et al. 2020

Preprint

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49The impact of a range of different threats has resulted in the listing of six out of seven sea turtle 50 species on the IUCN Red List of endangered species. Disease risk analysis (DRA) tools are designed to 51 provide objective, repeatable and documented assessment of the disease risks for a population and 52 measures to reduce these risks through management options. To the best of our knowledge, DRAs 53 have not previously been published for sea turtles, although disease is reported to contribute to sea 54 turtle population decline. Here, a comprehensive list of health hazards is provided for all seven 55 species of sea turtles. The possible risk these hazards pose to the health of sea turtles were assessed 56 and "One Health" aspects of interacting with sea turtles were also investigated. The risk assessment 57 was undertaken in collaboration with more than 30 experts in the field including veterinarians, 58 microbiologists, social scientists, epidemiologists and stakeholders, in the form of two international 59 workshops and one local workshop. The general finding of the DRA was the distinct lack of 60 knowledge regarding a link between the presence of pathogens and diseases manifestation in sea 61 turtles. A higher rate of disease in immunocompromised individuals was repeatedly reported and a 62 possible link between immunosuppression and environmental contaminants as a result of 63 anthropogenic influences was suggested. Society based conservation initiatives and as a result the 64 cultural and social aspect of interacting with sea turtles appeared to need more attention and 65 research. A risk management workshop was carried out to acquire the insights of local policy makers 66 about management options for the risks relevant to Queensland and the options were evaluated 67 considering their feasibility and effectiveness. The sea turtle DRA presented here, is a structured 68 guide for future risk assessments to be used in specific scenarios such as translocation and head-69 starting programs. 70 71 72 73 3 74 101 Species Survival Commission in 2014. The manual addresses different scenarios for endangered 102 species and translocating them for conservation purposes and enables the pros and cons of these 103actions to be thoroughly investigated (11). In order to accommodate the unique biology of sea 104 turtles, the DRA process as described in this manual requires certain modifications to realistically 105 articulate with situations such as translocating animals or investigating the risks of disease for a 106 population in its normal habitat. A 2015 study describes a systematic approach to investigate 107 disease-related population decline without confining the assessment to a particular scenario or 108 location (6). This method is a modified version of a DRA based on epidemiological principles (6) for 109 any declining wildlife population. A successful DRA considers the study population in the context of 110 the environment. 111In the 1960's, Calvin Schwabe coined the term "One Medicine" which then extended ...

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Sea Turtle Parasites

Cited by 12 publications

References 46 publications

Helminths of hawksbill turtle (Eretmochelys imbricata) from the Pacific coast of Costa Rica

Helminths of hawksbill turtle (Eretmochelys imbricata) from the Pacific coast of Costa Rica

Primer reporte de Cricocephalus albus (Digenea: Pronocephalidae) en el Perú, parásito de la tortuga verde del Pacífico Este (Chelonia mydas agassizii)

Disease Risk Analysis in sea turtles: A baseline study to inform conservation efforts

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