scholarly journals Descrição Anatômica Esquelética da tartaruga verde (Chelonia Mydas) proveniente de encalhe nas unidades de Conservação do Mosaico Jureia-Itatins, Estação Ecológica Tupiniquins e APACIP – Área de Proteção Ambiental Cananeia-Iguape-Peruíbe-SP / Anatomical Skeletal Description of the Green Turtle (Chelonia Mydas) from stranded in the Jureia-Itatins Mosaic Conservation Units, Tupiniquins Ecological Station and Apacip – Cananeia-Iguape-Peruíbe-SP Environmental Protection zone

2021 ◽  
Vol 4 (4) ◽  
pp. 5441-5456
Author(s):  
Edris Queiroz Lopes ◽  
Tatiane Gonçalves De Lima ◽  
Eduardo Forzan Braz ◽  
Nathia Nathaly Rigoglio
Keyword(s):  
Environmental Protection ◽  
Green Turtle ◽  
Chelonia Mydas ◽  
Conservation Units ◽  
Protection Zone

A tartaruga verde (Chelonia mydas) pertencente à família Cheloniidae é uma das espécies marinhas que habita todos os mares, apresentando comportamento altamente migratório com movimentos sazonais em busca de alimentos, além de alternar seu ciclo de vida em diferentes habitats. Embora sua origem seja terrestre, local onde são lentas e vulneráveis e onde fazem oviposição; estas evoluíram e se adaptaram ao ambiente marinho, local no qual se deslocam com rapidez e agilidade. Sua morfologia pode auxiliar na identificação das diferentes espécies de tartarugas marinhas, como por exemplo, número de placas na cabeça, formato das mandíbulas, entre outros. O dimorfismo sexual fica evidente na vida adulta, quando os machos passam a apresentar cauda mais longa e garra das nadadeiras anteriores curvada. Por ser a espécie mais comum no litoral brasileiro e por estar incluída na lista de espécies ameaçadas de extinção em escala mundial, este trabalho teve como objetivo descrever sua morfologia e anatomia esquelética a fim de difundir conhecimento básicos que visam a conservação desta espécie de tartaruga marinha.

scholarly journals Fine-scale thermal adaptation in a green turtle nesting population

2011 ◽  
Vol 279 (1731) ◽  
pp. 1077-1084 ◽  
Author(s):  
Sam B. Weber ◽  
Annette C. Broderick ◽  
Ton G. G. Groothuis ◽  
Jacqui Ellick ◽  
Brendan J. Godley ◽  
...  
Keyword(s):  
Green Turtle ◽  
Spatial Scales ◽  
Thermal Adaptation ◽  
Chelonia Mydas ◽  
Breeding Population ◽  
Thermal Reaction ◽  
Marine Turtle ◽  
Conservation Units ◽  
Sand Beach ◽  
Incubation Temperatures

The effect of climate warming on the reproductive success of ectothermic animals is currently a subject of major conservation concern. However, for many threatened species, we still know surprisingly little about the extent of naturally occurring adaptive variation in heat-tolerance. Here, we show that the thermal tolerances of green turtle ( Chelonia mydas ) embryos in a single, island-breeding population have diverged in response to the contrasting incubation temperatures of nesting beaches just a few kilometres apart. In natural nests and in a common-garden rearing experiment, the offspring of females nesting on a naturally hot (black sand) beach survived better and grew larger at hot incubation temperatures compared with the offspring of females nesting on a cooler (pale sand) beach nearby. These differences were owing to shallower thermal reaction norms in the hot beach population, rather than shifts in thermal optima, and could not be explained by egg-mediated maternal effects. Our results suggest that marine turtle nesting behaviour can drive adaptive differentiation at remarkably fine spatial scales, and have important implications for how we define conservation units for protection. In particular, previous studies may have underestimated the extent of adaptive structuring in marine turtle populations that may significantly affect their capacity to respond to environmental change.

scholarly journals Morphological studies of the composition of the Green Turtle (Chelonia mydas) hyoid bones found in Peruibe, Southern Coast of Brazil, Mosaic of Conservation Units Jureia-Itatins

2019 ◽  
Vol 6 (9) ◽  
pp. 285-290
Author(s):  
Edris Queiroz Lopes ◽  
Luana Félix de Melo ◽  
Milena Joice Bressan ◽  
Tatiane Gonçalves Lima ◽  
Rose Eli Grassi Rici ◽  
...  
Keyword(s):  
Green Turtle ◽  
Chelonia Mydas ◽  
Southern Coast ◽  
Conservation Units ◽  
Morphological Studies

scholarly journals Morphophysiological Analysis of Keratobranchial Bone II located in the Hyoid of the Green Turtle (Chelonias mydas) found in Peruíbe, South Coast of Brazil, Mosaic of Conservation Units-Juréia-Itatins and APACIP

2021 ◽  
Vol 1 (4) ◽  
pp. 120-130
Author(s):  
Edris Queiroz Lopes ◽  
Tatiane Gonçalves De Lima ◽  
Luana Félix De Melo ◽  
Rose Eli Grassi Rici
Keyword(s):  
Green Turtle ◽  
Bone Structure ◽  
Eating Habits ◽  
Coastal Region ◽  
Chelonia Mydas ◽  
Conservation Units ◽  
Green Turtles ◽  
Small Bones ◽  
High Level ◽  
Microscopy Techniques

The green turtle (Chelonia mydas) present in tropical seas, uses as a feeding area the coastal region of Peruíbe, has the skull as a relatively large and solid structure, and a strong jaw formed by the junction of small bones as it has very abrasive feeding. By applying scanning electron microscopy techniques, it was possible to identify the presence of a bone structure located in the hyoid in the ventral region of the skull along with the mandible of juvenile individuals of green turtles, and as there is no related research, it was necessary to perform a CT scan, decalcification and histology of the quelonian hyoid, to discover the morphological composition of this new structure, described only in the species Chelonia mydas. Thus, the morphology of the structures and its confirmation as a real bone, with characteristic of spongy bone, described as certobranchial II, was confirmed, thus helping researchers to seek other ways to understand the feeding processes of these animals that are going through a series of serious environmental problems and therefore perhaps having to change their eating habits to overcome the high level of pollution that we are finding in the oceans.   RESUMO A tartaruga verde (Chelonia mydas) presente nos mares tropicais, utiliza como zona de alimentação a região costeira do Peruíbe, tem o crânio como uma estrutura relativamente grande e sólida, e uma mandíbula forte formada pela junção de pequenos ossos, uma vez que tem uma alimentação muito abrasiva. Aplicando técnicas de microscopia electrónica de varrimento, foi possível identificar a presença de uma estrutura óssea localizada no hióide na região ventral do crânio, juntamente com a mandíbula de indivíduos juvenis de tartarugas verdes, e como não existe investigação relacionada, foi necessário realizar um TAC, descalcificação e histologia do hióide quelónico, para descobrir a composição morfológica desta nova estrutura, descrita apenas na espécie Chelonia mydas. Assim, a morfologia das estruturas e a sua confirmação como um osso real, com característica de osso esponjoso, descrito como certobranchial II, foi confirmada, ajudando assim os investigadores a procurar outras formas de compreender os processos de alimentação destes animais que estão a passar por uma série de graves problemas ambientais e, por conseguinte, talvez tenham de alterar os seus hábitos alimentares para superar o elevado nível de poluição que estamos a encontrar nos oceanos.

scholarly journals Characterization of the feeding behavior of the green turtle (Chelonia mydas) in the Juréia-Itatins Mosaic's Conservation Units, South Coast of the São Paulo state

2020 ◽  
Vol 3 (3) ◽  
pp. 1855-1870
Author(s):  
Milena Joice Bressan ◽  
Tatiane Gonçalves de Lima ◽  
Luana Felix de Melo ◽  
Nathia Nataly Rigoglio ◽  
Edris Queiroz Lopes
Keyword(s):  
Feeding Behavior ◽  
Green Turtle ◽  
Chelonia Mydas ◽  
Sao Paulo ◽  
South Coast ◽  
São Paulo ◽  
Conservation Units ◽  
Paulo State ◽  
São Paulo State

CONDITIONS OF HILLING HABITAT OF CHELONIA MYDAS (GREEN TURTLE) IN PANGUMBAHAN BEACH UJUNG GENTENG, SUKABUMI SELATAN

2019 ◽  
Vol 1 (02) ◽  
pp. 64-67
Author(s):  
Meilisha Putri Pertiwi ◽  
Suci Siti Lathifah
Keyword(s):  
Data Collection ◽  
Surface Temperature ◽  
Green Turtle ◽  
Data Retrieval ◽  
Distribution Patterns ◽  
Chelonia Mydas ◽  
Nesting Habitat ◽  
Beach Width ◽  
The Many ◽  
Pandanus Tectorius

Research on the condition of the nesting habitat of Chelonia mydas (green turtle) in Pangumbahan Beach, Ujung Genteng, South Sukabumi has been carried out. Data retrieval is done 6 times for 2 days, 27-28 November 2017 at 3 observation stations. The abiotic parameters measured include surface temperature and depth of 50 cm, surface humidity and depth of 50 cm, beach width, beach slope, and the size of sand grains. While the biotic parameters measured were density, relative density, the frequency of attendance, and distribution patterns of Pandanus tectorius (sea pandanus) vegetation. Based on the results of data processing, the biophysical conditions in Pangumbahan Beach are still suitable for the Chelonia mydas nesting habitat. It also got clear evidence of the many Chelonia mydas landings during the data collection.

Structural description of sea turtle fibropapilloma

2020 ◽  
Vol 13 (3) ◽  
pp. 585-591
Author(s):  
Luana Melo ◽  
Isabel Velasco ◽  
Julia Aquino ◽  
Rosangela Rodrigues ◽  
Edris Lopes ◽  
...  
Keyword(s):  
Green Turtle ◽  
Chelonia Mydas ◽  
Sea Turtle ◽  
Tumor Formation ◽  
Neoplastic Disease ◽  
Structural Description ◽  
Chemical Carcinogens ◽  
Epidermal Proliferation ◽  
Turtle Population ◽  
Bulky Mass

Fibropapillomatosis is a neoplastic disease that affects sea turtles. It is characterized by multiple papillomas, fibropapillomas and cutaneous and/or visceral fibromas. Although its etiology has not been fully elucidated, it is known that there is a strong involvement of an alpha - herpesvirus, but the influence of other factors such as parasites, genetics, chemical carcinogens, contaminants, immunosuppression and ultraviolet radiation may be important in the disease, being pointed out as one of the main causes of a reduction in the green turtle population. Thus, the objective of this article was to describe the morphology of cutaneous fibropapillomas found in specimens of the green turtle (Chelonia mydas), using light and scanning electron microscopy in order to contribute to the mechanism of tumor formation. Microscopically, it presented hyperplastic stromal proliferation and epidermal proliferation with hyperkeratosis. The bulky mass was coated with keratin, with some keratinocyte invaginations, that allowed the keratin to infiltrate from the epidermis into the dermis, forming large keratinized circular spirals. Another fact that we observed was the influence of the inflammation of the tumors caused by ectoparasites.

Discovery of a Major East Pacific Green Turtle (Chelonia mydas) Nesting Population in Northwest Costa Rica

2018 ◽  
Vol 17 (2) ◽  
pp. 169
Author(s):  
Luis G. Fonseca ◽  
Pilar Santidrián Tomillo ◽  
Wilbert N. Villachica ◽  
Wagner M. Quirós ◽  
Marta Pesquero ◽  
...  
Keyword(s):  
Costa Rica ◽  
Green Turtle ◽  
Chelonia Mydas ◽  
East Pacific

The Effect of Invertebrate Infestation on Green Turtle (Chelonia mydas) Nests on Kazanlı Beach, Mersın, Turkey

2020 ◽  
Vol 27 (5) ◽  
pp. 245-256
Author(s):  
Cemil Aymak ◽  
Aşkın Hasan Uçar ◽  
Yusuf Katılmış ◽  
Eyup Başkale ◽  
Serap Ergene
Keyword(s):  
Green Turtle ◽  
Hatching Success ◽  
Negative Relationship ◽  
Chelonia Mydas ◽  
Sea Turtle ◽  
Faunal Composition ◽  
Independent Variables ◽  
Invertebrate Species ◽  
First Time ◽  
Nesting Season

In this study invertebrate infestation in green turtle (Chelonia mydas) nests were recorded for the first time for Kazanlı beach, Mersin, Turkey. For this aim, in 2006 nesting season, 294 natural intact green turtle nests were sampled to examine their contents and invertebrate infestation was found in 76 (25.85% of the total sampling green turtle nests). These infested nests were examined in terms of the invertebrate faunal composition. The specimens found in the green sea turtle nests were identified to order, family or genus levels and they were represented in 5 orders. These invertebrate groups are Elater sp. larvae (Elateridae; Coleoptera), Pimelia sp. larvae (Tenebrionidae; Coleoptera), Enchytraeidae (Oligochaeta), Cyrptostigmata (Acari), Oniscidae (Isopoda), Formicidae (Hymenoptera). Elater sp. was the most common invertebrate group in the green turtle nests. According to student t test, we found statistically significant differences between 7 independent variables and invertebrate species presence. Furthermore, logistic regression analysis explained that there is a negative relationship between hatching success rate and invertebrate species presence.

Pulmonary Blood Flow at Rest and during Swimming in the Green Turtle, Chelonia mydas

1992 ◽  
Vol 65 (2) ◽  
pp. 287-310 ◽  
Author(s):  
Nigel H. West ◽  
Patrick J. Butler ◽  
Richard M. Bevan
Keyword(s):  
Blood Flow ◽  
Green Turtle ◽  
Pulmonary Blood Flow ◽  
Chelonia Mydas
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