scholarly journals Comparative osteology and osteometry of the coracoideum, humerus, and femur of the green turtle ( Chelonia mydas ) and the loggerhead turtle ( Caretta caretta )

2019 ◽  
Vol 29 (5) ◽  
pp. 683-695
Author(s):  
Franciscus Johannes Koolstra ◽  
Hans Christian Küchelmann ◽  
Canan Ҫakirlar
1999 ◽  
Vol 37 ◽  
pp. 89-97 ◽  
Author(s):  
JK Lackovich ◽  
DR Brown ◽  
BL Homer ◽  
RL Garber ◽  
DR Mader ◽  
...  

2004 ◽  
Vol 118 (4) ◽  
pp. 579 ◽  
Author(s):  
Michael C. James ◽  
Kathleen Martin ◽  
Peter H. Dutton

The Green Turtle (Chelonia mydas) principally occupies tropical and subtropical waters, although juveniles are known to occur seasonally in temperate coastal waters. Collaboration with commercial fishers in eastern Canada yielded the most northerly records of this species in the northwest Atlantic. Here we report on the first confirmed record of a Green Turtle in eastern Canada and on the occurrence of a rare Green Turtle–Loggerhead Turtle (Caretta caretta) hybrid. Hybridization between the Carettini and Chelonini is extraordinary given that these groups have been genetically distinct for 50 million years or more.


2008 ◽  
Vol 130 (3-4) ◽  
pp. 227-237 ◽  
Author(s):  
Charles A. Manire ◽  
Brian A. Stacy ◽  
Michael J. Kinsel ◽  
Heather T. Daniel ◽  
Eric T. Anderson ◽  
...  

2016 ◽  
Vol 15 (2) ◽  
pp. 238-248 ◽  
Author(s):  
Rebekah Lindborg ◽  
Emily Neidhardt ◽  
Blair Witherington ◽  
J. Rachel Smith ◽  
Anne Savage

2013 ◽  
Vol 93 (7) ◽  
pp. 1991-2002 ◽  
Author(s):  
Maria Corsini-Foka ◽  
Gerasimos Kondylatos ◽  
Elias Santorinios

A total of 209 strandings of sea turtles (152 loggerhead turtles Caretta caretta, 42 green turtles Chelonia mydas, 15 unidentified) were recorded during the period 1984–2011 along the coasts of Rhodes (Aegean Sea, Greece). The proportion of dead to live individuals was different in the two species. Stranded Caretta caretta were larger than Chelonia mydas. The size range of stranded green turtles, usually juveniles, appeared to increase since 2000, including the largest specimens ever observed in Greek waters. For both species, a tendency to strand more frequently on the west coast of the island, along fishing ground areas, was noted. The higher incidence of loggerhead turtle strandings was observed in summer, while more green turtle strandings were documented in winter. Factors involved in the increased trend of stranding records of both species, along with the acceleration of this phenomenon in the last decade, are discussed. Data from Rhodes provide evidence that human activities detrimentally affect mainly larger-sized loggerhead turtles living in shallow waters.


2017 ◽  
Vol 54 (4) ◽  
pp. 363-368 ◽  
Author(s):  
M. R. Werneck ◽  
C. Nunes ◽  
H. Jerdy ◽  
E. C. Q. Carvalho

SummaryThe present note describes the occurrence of Monticellius indicum Mehra, 1939 (Digenea: Spirorchiidae) in an adult loggerhead turtle, Caretta caretta (Linnaeus, 1758), found on the coast of the state of Rio de Janeiro, Brazil. Pathological changes due to spirorchiid eggs (type 1 and 3) were found in gastrointestinal system, endocrine system, and heart. This parasite has previously been described in the green turtle, Chelonia mydas (Linnaeus, 1758), from Pakistan, Brazil and Costa Rica as well as in the hawksbill sea turtle, Eretmochelys imbricata (Linnaeus, 1766), in Brazil. This note reports the loggerhead turtle as a new host for M. indicum.


1998 ◽  
Vol 76 (4) ◽  
pp. 723-729 ◽  
Author(s):  
Y Kaska ◽  
R Downie ◽  
R Tippett ◽  
R W Furness

Temperatures of green turtle (Chelonia mydas) and loggerhead turtle (Caretta caretta) nests on the beaches of northern Cyprus and Turkey were examined. Electronic continuous-temperature recorders programmed by computer were placed at the top, middle, and bottom of the nests. The sex of 3-7 hatchlings from each level was determined from gonadal histology. The maximum temperature increase during the incubation period was 9.6oC for both species. The mean temperature during the middle third of the incubation period is a good indicator of the sex ratio of the clutch. The percentage of female embryos increased with temperature, 50% being female at 29°C. The mean temperature over the entire incubation period is not a good indicator of sex ratio but can be used to predict the duration of incubation period. The temperature differences within the clutch were larger in loggerhead than in green turtle nests. Eggs at the top of the nest experienced generally warmer (up to 1.4°C) conditions than eggs at the bottom of the same nest, and this caused variation in sex ratio within nests. Over all nests, the sex ratio (percent female) of hatchlings was 91% at the top, 83% at the middle, and 69% at the bottom. There was considerable interbeach thermal variation. Marked diel cycles of up to 1.5°C were detected in loggerhead turtle nests but not in the deeper nests of green turtles.


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