Article 17 web tool

Scientific name used in original MS report if different than recommended: "Chelonia mydas"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: N/A ||
->HabInfo: N/A ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

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Scientific name used in original MS report if different than recommended: "Chelonia mydas"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: Seule une fraction de la population de tortues vertes, exclusivement des individus juvéniles, est observée sur cette aire de répartition et aucun site de nidification n'y a été constaté. L'évaluation de l'aire de répartition est donc à prendre avec précaution pour évaluer l'état de conservation de cette espèce. ||
->Population: La population de Chelonia mydas signalée dans les trois sous-régions marines concernées ne représente qu'une très faible fraction de la population à l'échelle de l'Atlantique Nord, exclusivement des individus juvéniles et aucune site de nidification n'a été signalé pour cette espèce. Ces éléments considérés, l'évaluation globale de l'état de la population à l'échelle de la zone concernée n'est pas représentative. Toutefois, il est à noter que les individus juvéniles qui parviendraient jusqu'à la zone considérée sont soumis à de nombreuses menaces anthropiques qui peuvent engager leur survie dans nos eaux. ||
->HabInfo: Seule une fraction de la population de tortues vertes, composée exclusivement d'individus juvéniles, est observée dans cette zone d'étude (cette espèce est migratrice, elle réalise son cycle de vie à l'échelle de l'Atlantique Nord et aucun site de nidification n'a été signalé sur la zone considérée par l'évaluation). Notons toutefois que même si la zone concernée dispose de ressources alimentaires disponibles pour cette espèce, la dégradation du milieu marin, notamment au regard des débris marins, a un impact négatif sur cette fraction de la population de tortues vertes.
Si en terme de superficie, l'habitat peut être qualifié de favorable, puisqu'il correspond à l'aire de répartition, l'évaluation de l'habitat au regard des ressources nécessaires à toutes les étapes du cycle de vie de la tortue verte n'est pas réalisable. ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Chelonia mydas"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: Data on this species’ occurrence have improved mainly due to two studies undertaken recently, both involving fieldwork as well as data gathering (bibliography, surveys).
Green turtles seem to exhibit site fidelity to several neritic foraging grounds used repeatedly for several years. However, this behavior could not be representative of the entire population of green turtles using Canary Islands’ waters but be conditioned by leisure activities involving feeding turtles (diving, recreational fishing, etc) ||
->Population: N/A ||
->HabInfo: Decreasing trends in the overall state of Cymodocea nodosa, along with other coastal habitats also used by green turtles, in the Canary Islands.
Fabri, F., et al (2015) Trends of the seagrass Cymodocea nodosa (Magnoliophyta) in the Canary Islands: population changes in the last two decades. Scientia Marina 79 (1): 7 ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

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Scientific name used in original MS report if different than recommended: "Chelonia mydas"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: The species' distribution was calculated from the records of nests, using the 1x1km grid. Range was calculated using scientific literature and expert opinion. ||
->Population: The number of individuals (i) was calculated by the number of breeding females under the assumption that the male/female ratio is 1:1. Since there is no pair-bonding in turtles, this assumption is not necessarily valid and may lead to population overestimation. Therefore, a value closer to the minimum number of individuals reported is probably more reliable. The number of breeding females (bfemales) is a reliable population unit for the species and it was calculated on the average number of nests made in the preceding six years, knowing that the species nests every three years, laying 3 clutches of eggs (i.e. 3 nest) in that year. Genuine change (increase) in the population size is manly due to te long-term (40 years) nest protection meausres. ||
->HabInfo: N/A ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Chelonia mydas"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: Records are very scattered in time and space ||
->HabInfo: N/A ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Chelonia mydas"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: N/A ||
->HabInfo: N/A ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Chelonia mydas"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: It is not possible to estimate the population size nationwide from the number of turtles reported dead or injured. ||
->HabInfo: The habitat surface area is estimated to be 57407,8 km2, equal to the range, and its quality is unknown. ||
->Future: N/A ||
->Conclusion: According to expert judgement, the trend of the Overall CS is Deteriorating, however not enough quantitative data are available in order to support this. ||
->JustificationThreshold: N/A ||
->Other: The Green turtle (Chelonia mydas) in the Mediterranean reproduces regularly in the Levantine basin, mainly in Turkey, Cyprus and Syria. Only one nest (Rethymno, Crete, in 2007) has been verified in Greece (Margaritoulis & Panagopoulou 2010). A small number of Green turtles (mostly small sized sudadults) are regularly reported dead or injured along the Greek coasts. From 226 injured turtles admitted to ARCHELON Rescue Centre, about 3.5% were identified as Chelonia mydas (Panagopoulos et al. 2003). However, a remarkable concentration of Green turtles occurs in Laconicos Bay (southern Peloponnese) where about 40% of locally stranded turtles were Chelonia mydas of a specific size class providing evidence that Laconikos Bay is a developmental habitat of the species (Margaritoulis et al. 2003). Chelonia mydas individuals in Greece suffer the same pressures at sea as those of Caretta caretta including pressures occurring outside the EU boundaries, among them consumption in some northern African countries.

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