Pollutants and the health of green sea turtles resident to an urbanized estuary in San Diego, CA

Komoroske, Lisa M.; Lewison, Rebecca L.; Seminoff, Jeffrey A.; Deheyn, Dimitri D.; Dutton, Peter H.

doi:10.1016/j.chemosphere.2011.04.023

Cited by 102 publications

(96 citation statements)

References 34 publications

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“…Conversely, no consistent pattern of organic contaminant levels was observed to explain the difference between healthy and tumor-affected C. mydas in Brazil (SANCHEZ-SARMIENTO et al, 2017). The knowledge of those concentrations is still needed to obtain a better understanding of the cause-and-effect relationships of environmental contamination and C. mydas health parameters (KOMOROSKE et al, 2011).…”

Section: Mortality and Morbidity Of Chelonia Mydas Associated With Humentioning

confidence: 99%

The green turtle Chelonia mydas as a marine and coastal environmental sentinels: anthropogenic activities and diseases

Domiciano

Domit

Bracarense

2017

SCA

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The green turtle Chelonia mydas as a marine and coastal environmental sentinels: anthropogenic activities and diseases Tartaruga-verde, Chelonia mydas, como sentinela do ambiente marinho e costeiro: atividades antrópicas e enfermidades AbstractThe green turtle Chelonia mydas is a widely distributed, slowly maturing species with a complex life cycle, using both oceanic and coastal environments. The species is exposed to different threats and is considered an environmental sentinel that indicates variation among, and the severity of hazards to marine ecosystems. This study aimed to describe both anthropogenic impacts, and infectious and parasitic diseases in C. mydas -including cases along the Brazilian coast -and implications for conservation. Bycatch is reported as the main threat to the conservation of this species, followed by debris ingestion, collisions with boats, dredging, and chronic environmental contamination. All of these impacts may directly or indirectly cause death, by facilitating contact with pathological agents and by increasing vulnerability to secondary diseases. The pathological agents associated with lesions include viruses, bacteria, fungi, protozoa, and helminths. Fibropapillomatosis is an example of a chronic disease characterized by cutaneous and visceral tumors that affects mostly juvenile C. mydas worldwide and is associated with the Chelonid herpesvirus 5. The bacterias Vibrio alginolyticus, Aeromonas hydrophila, and Pseudomonas fluorescens are found in the aquatic environment and among C. mydas lesions in various organs. Trematode adults and eggs of the family Spirorchiidae are also frequent in systemic cardiovascular diseases of C. mydas. The direct impacts of anthropogenic activities and diseases are synergistic and may affect the specie's health and conservation. Therefore, the monitoring and systematic diagnosing of diseases and causes of death -including necropsy, histopathology, and molecular exams -are necessary to assess a population's health, to support appropriate decisions of coastal management and to target future research topics that optimize C. mydas conservation. Key words: Bycatch. Conservation. Debris ingestion. Morbidity. Pathogenic agents. Sea turtle. ResumoA tartaruga-verde, Chelonia mydas, possui ampla distribuição geográfica, reprodução tardia e complexo ciclo de vida, habitando áreas costeiras e oceânicas. Devido a essas características, a espécie está exposta a diferentes tipos de ameaças e pode sinalizar sobre variações e a gravidade desses impactos ao longo do tempo no ecossistema, sendo considerada sentinela ambiental. Este trabalho teve por objetivo discorrer sobre relatos de atividades antrópicas impactantes e doenças infecciosas e parasitárias em C. mydas, com ênfase nas ocorrências no litoral brasileiro. A captura acidental em petrechos de pesca é uma das principais ameaças à conservação desses animais, assim como a ingestão de resíduos sólidos, colisão com embarcações, dragagens e bioacumulação de contaminantes químicos, os quais podem atuar diretament...

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Section: Mortality and Morbidity Of Chelonia Mydas Associated With Humentioning

confidence: 99%

The green turtle Chelonia mydas as a marine and coastal environmental sentinels: anthropogenic activities and diseases

Domiciano

Domit

Bracarense

2017

SCA

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“…Among these, a myriad of chemical pollutants have the potential to impact turtles' health which renders them less capable of coping with environmental stressors. Previous research mainly focused on the adverse effect of a few priority chemical groups or other target chemicals out of a broad spectrum that turtles can realistically be exposed to (Hermanussen et al, 2008;van de Merwe et al, 2010;Komoroske et al, 2011;Gaus et al, 2012;Keller et al, 2014;Villa et al, 2015). Lack of time-and cost-effective tools has principally limited our capability of assessing the entire mixture of bioaccumulative chemicals as an entity, leaving the overall toxicological implications of these mixtures largely unknown.…”

Section: Introductionmentioning

confidence: 98%

Coupling passive sampling with in vitro bioassays and chemical analysis to understand combined effects of bioaccumulative chemicals in blood of marine turtles

et al. 2015

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“…In reptiles, including sea turtles, Hg exposure has been related to physiological and behavioral changes, immunosuppression and reduced reproductive success (Day et al, 2007;Komoroske et al, 2011;Perrault et al, 2011;Schneider et al, 2013). Foraging habit and feeding preferences has been linked to Hg biomagnification in a variety of marine organisms (Bezerra et al, 2012;Di Beneditto et al, 2012Pereira et al, 2010).…”

Section: Introductionmentioning

confidence: 95%

Food preferences and Hg distribution in Chelonia mydas assessed by stable isotopes

Bezerra

Lacerda

Rezende

et al. 2015

Environmental Pollution

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Pollutants and the health of green sea turtles resident to an urbanized estuary in San Diego, CA

Cited by 102 publications

References 34 publications

The green turtle Chelonia mydas as a marine and coastal environmental sentinels: anthropogenic activities and diseases

The green turtle Chelonia mydas as a marine and coastal environmental sentinels: anthropogenic activities and diseases

Coupling passive sampling with in vitro bioassays and chemical analysis to understand combined effects of bioaccumulative chemicals in blood of marine turtles

Food preferences and Hg distribution in Chelonia mydas assessed by stable isotopes

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