Sources and movements of marine turtles in the Gulf of Venezuela: Regional and local assessments

Barrios-Garrido, Héctor; Becker, P.; Bjorndal, Karen A.; Bolten, Alan B.; Díez, Carlos Estepa; Espinoza-Rodríguez, Nínive; Fastigi, M.; Harrison, Emma; Hart, Kristen; Meylan, Anne B.; Meylan, Peter A.; Montiel-Villalobos, María G.; Morales, Félix; Nava, Mabel; Palmar, Jordano; Petit-Rodríguez, María J.; Richardson, Peter B.; Rodríguez-Clark, Kathryn M.; Rojas-Cañizales, Daniela; Sandoval, M.G.; Valverde, Roldán A.; Dam, Robert Van; Walker, James T.; Wildermann, Natalie; Hamann, Mark

doi:10.1016/j.rsma.2020.101318

Cited by 5 publications

(3 citation statements)

References 43 publications

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“…Morover, these movements might be associated to local food occurrence and distribution (Fossette et al 2008). Barrios-Garrido et al (2020) reported an adult leatherback turtle that was tagged in French Guyana and found later in the Upper Guajira, therefore suggesting that leatherback turtles use the foraging area after reproductive seasons. It is necessary to study the connections between the Gulf of Venezuela and the nesting areas in the Caribbean and Atlantic to identify hot spots for the species and create management plans.…”

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confidence: 99%

Leatherback turtles (Dermochelys coriacea) in the Gulf of Venezuela: An update stranding assessment 2001-2014

et al. 2021

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Leatherback turtle (Dermochelys coriacea) is highly impacted by fisheries’ bycatch worldwide. This study updates and estimates the leatherback turtle stranding records from 2001 to 2014 in the Gulf of Venezuela. Eighty-six stranded leatherback turtles were documented in the coast of the Gulf of Venezuela. Immature leatherback turtles were the most affected (85.1%) and the highest number of strandings were recorded during the dry season (55.8%). Our findings represent the minimum estimate of stranding events for the Gulf of Venezuela, especially considering the current lack of fisheries regulations. This is the latest update for the leatherback turtle strandings in the Gulf of Venezuela and could help to create new management solutions in the area aiming to minimize the impact on leatherback turtle populations in the Caribbean.

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confidence: 99%

Leatherback turtles (Dermochelys coriacea) in the Gulf of Venezuela: An update stranding assessment 2001-2014

et al. 2021

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“…Direct transmission may also be occurring between co-habiting turtles via interactions such as mating and aggression [20,22]. The GV is known to be a recruiting and development area for MT, specifically, the GT population in the GV includes individuals from many rookeries throughout the Caribbean (such as Florida, México, Colombia, Costa Rica, Nicaragua, Isla de Aves [Venezuela], among others) [6] with a large number of immature individuals, hence resulting the most affected size category.…”

Section: Resultsmentioning

confidence: 99%

Fibropapillomatosis in immature Green Turtles (Chelonia mydas) from the Gulf of Venezuela

Espinoza-Rodríguez

Barrios-Garrido

2021

RC FCV-LUZ

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Fibropapillomatosis (FP) is affecting multiple marine turtle (MT) species worldwide. In Venezuela, the understanding about this neoplastic condition is still in early stage. Hence, this paper aims to assess the occurrence and frequency of FP in green turtles (GT) in the Gulf of Venezuela (GV). Herein, it was compiled and analyzed the reports in the database of the NGO ‘Grupo de Trabajo en Tortugas Marinas del Golfo de Venezuela’, which includes all records of stranded MT in the GV from 2000 to 2011. Between 2000 and 2006, in the GV only 2 cases of FP in MT had been reported (1.71 % of total records). Subsequently, between 2008 and 2011, encounters of FP were more frequent; resulting in a total of 7 immature GT (2.93 % of the records) documented showing large masses or skin tumors in various parts of the body. The most affected area of the MT’s body was neck and venous sinus (37.50 %), followed by the anterior flippers (18.75 %), plastron (18.75 %), posterior region (cloaca 18.75 %) and lastly, the eyes (6.25 %). All individuals presented two or more body areas with FP. Although a correlation between the presence of FP and environmental factors observed in the study area was not assessed, the turtles evaluated came from coastal waters with high levels of eutrophication, habitat degradation, and pollution. It is necessary to monitor the occurrence of this disease and the environmental factors that may negatively affect the survival of MT populations in the GV.

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“…One record of a postbreeding olive ridley turtle was documented based on a flipper tag recapture identified from a nesting turtle tagged at Eilanti beach (Suriname) while laying eggs and later recaptured in the Guajira Peninsula (Zulia state) with no further information but the tag code (Barrios-Garrido et al 2020a). Hence, adult female olive ridleys in Venezuelan waters are likely using French Guyana and Suriname beaches as nesting habitats (Chambault et al 2016;Barrios-Garrido et al 2020a). Further research is needed to verify the connection between Venezuela and neighboring countries with the presence of L. olivacea and to elucidate if individuals from Brazilian nesting beaches are also reaching Venezuela's shelf during their postreproductive periods.…”

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confidence: 99%

Records of Olive Ridley Marine Turtles (Lepidochelys olivacea Eschscholtz 1829) in Venezuelan Waters: A Review of Historical Data Sets and Threats

Barrios-Garrido

Arias-Ortiz

Balladares³

et al. 2022

Chelonian Conservation and Biology

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Sources and movements of marine turtles in the Gulf of Venezuela: Regional and local assessments

Cited by 5 publications

References 43 publications

Leatherback turtles (Dermochelys coriacea) in the Gulf of Venezuela: An update stranding assessment 2001-2014

Leatherback turtles (Dermochelys coriacea) in the Gulf of Venezuela: An update stranding assessment 2001-2014

Fibropapillomatosis in immature Green Turtles (Chelonia mydas) from the Gulf of Venezuela

Records of Olive Ridley Marine Turtles (Lepidochelys olivacea Eschscholtz 1829) in Venezuelan Waters: A Review of Historical Data Sets and Threats

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