- Free-Ranging Sea Turtle Health

2013 ◽  
pp. 398-417
Keyword(s):  
Sea Turtle ◽  
Free Ranging

scholarly journals Behavioural inference from signal processing using animal-borne multi-sensor loggers: a novel solution to extend the knowledge of sea turtle ecology

2020 ◽  
Vol 7 (5) ◽  
pp. 200139 ◽  
Author(s):  
Lorène Jeantet ◽  
Víctor Planas-Bielsa ◽  
Simon Benhamou ◽  
Sebastien Geiger ◽  
Jordan Martin ◽  
...  
Keyword(s):  
Sea Turtles ◽  
Time Budget ◽  
Natural Habitat ◽  
Sea Turtle ◽  
Automatic Identification ◽  
Detailed Knowledge ◽  
Supervised Learning Algorithms ◽  
Conservation Of Endangered Species ◽  
Free Ranging

The identification of sea turtle behaviours is a prerequisite to predicting the activities and time-budget of these animals in their natural habitat over the long term. However, this is hampered by a lack of reliable methods that enable the detection and monitoring of certain key behaviours such as feeding. This study proposes a combined approach that automatically identifies the different behaviours of free-ranging sea turtles through the use of animal-borne multi-sensor recorders (accelerometer, gyroscope and time-depth recorder), validated by animal-borne video-recorder data. We show here that the combination of supervised learning algorithms and multi-signal analysis tools can provide accurate inferences of the behaviours expressed, including feeding and scratching behaviours that are of crucial ecological interest for sea turtles. Our procedure uses multi-sensor miniaturized loggers that can be deployed on free-ranging animals with minimal disturbance. It provides an easily adaptable and replicable approach for the long-term automatic identification of the different activities and determination of time-budgets in sea turtles. This approach should also be applicable to a broad range of other species and could significantly contribute to the conservation of endangered species by providing detailed knowledge of key animal activities such as feeding, travelling and resting.

scholarly journals Propylene Glycol in Free-Ranging Green Sea Turtle Plasma

2018 ◽  
Vol 9 (2) ◽  
pp. 617-623 ◽  
Author(s):  
Jennifer N. Niemuth ◽  
Craig A. Harms ◽  
Jeffrey M. Macdonald ◽  
Michael K. Stoskopf
Keyword(s):  
Propylene Glycol ◽  
Sea Turtles ◽  
Chelonia Mydas ◽  
Sea Turtle ◽  
Proton Nuclear Magnetic Resonance ◽  
Resonance Spectroscopy ◽  
Green Sea Turtles ◽  
Starting Point ◽  
Significant Difference ◽  
Free Ranging

Abstract Metabolomics is the study of metabolites, the small-molecular-weight end products of metabolism. Propylene glycol is a synthetic diol commonly used as antifreeze, as a humectant, and in the production of polyester compounds. In otherwise healthy animals, propylene glycol has generally been considered a contaminant, iatrogenic, or unexplained. We demonstrate the presence of propylene glycol in plasma of free-ranging apparently healthy green sea turtles Chelonia mydas and individuals impacted by cold stun syndrome, without iatrogenic administration or known sample processing contamination, using one- and two-dimensional proton nuclear magnetic resonance spectroscopy techniques. There was not a statistically significant difference in relative propylene glycol concentration between the two cohorts (two-sided random sampling two-sample permutation test, P = 0.842, R = 1,000). The presence of this metabolite raises important questions about sea turtle physiology and potential latent environmental contamination and serves as a starting point for future characterization of lipid metabolism and glycolysis in green sea turtles.

Investigation of duck plague virus in hoar areas of Bangladesh

2020 ◽  
Vol 26 (1-2) ◽  
pp. 73-78
Author(s):  
A Hossen ◽  
MH Rahman ◽  
MZ Ali ◽  
MA Yousuf ◽  
MZ Hassan ◽  
...  
Keyword(s):  
Cytopathic Effect ◽  
Clinical Sample ◽  
Chorioallantoic Membrane ◽  
Clinical Samples ◽  
Isolation And Identification ◽  
Duck Plague Virus ◽  
Pcr Method ◽  
Polymerase Chain ◽  
The Individual ◽  
Free Ranging

Duck plague (DP) is the most important infectious disease of geese, ducks and free-ranging water birds. The present study was conducted to determine the prevalence of duck plague virus followed by isolation and identification. For these purposes, a total of 155 cloacal swabs samples were collected randomly from duck of different haor areas of Bangladesh including 45 (41 surveillance and 4 clinical) samples from Netrokona; 42 (40 surveillance and 2 clinical) samples from Kishoregonj; 30 samples from Brahmanbaria and 38 samples from Sunamganj. The samples were processed and pooled (1:5 ratio) for initial screening of target polymerase gene of duck plague virus by polymerase chain reaction (PCR) method. All the samples of a positive pool were then tested individually for identifying the individual positive samples. The result showed that out of 155 samples, 41 (26.45%) were found positive in which 17 were from Netrokona, where 15 (36.58%) were from surveillance samples and 2 (50%) were from clinical sample; 16 were from Kishoregonj, where 14 (35%) were from surveillance samples and 2 (100%) were from clinical sample; 2 (6.6%) were from Brahmanbaria and 5 (13.15%) were from Sunamganj. These positive samples were inoculated into 9-10 days embryonated duck eggs (EDE) through chorioallantoic membrane (CAM) route for the isolation of virus. The EDE died earlier was also chilled, and in a similar way, the CAMs were collected and again performed PCR for id entification of virus. Out of 41 PCR positive samples, 26 samples were isolated and reconfirmed by PCR. Subsequently, DPV was isolated in primary duck embryo fibroblasts cell culture and confirmed by observing cytopathic effect (CPE). Bang. J. Livs. Res. Vol. 26 (1&2), 2019: P. 73-78

Clinical signs in free-ranging Guiana dolphins Sotalia guianensis during a morbillivirus epidemic: case study in Sepetiba Bay, Brazil

2019 ◽  
Vol 133 (3) ◽  
pp. 175-180 ◽  
Author(s):  
L Flach ◽  
MB Alonso ◽  
T Marinho ◽  
K Van Waerebeek ◽  
MF Van Bressem
Keyword(s):  
Clinical Signs ◽  
Sepetiba Bay ◽  
Sotalia Guianensis ◽  
Free Ranging

Aeromonas induced polyostotic osteomyelitis in a juvenile loggerhead sea turtle Caretta caretta

2018 ◽  
Vol 132 (1) ◽  
pp. 79-84 ◽  
Author(s):  
A Pace ◽  
L Meomartino ◽  
A Affuso ◽  
G Mennonna ◽  
S Hochscheid ◽  
...  
Keyword(s):  
Caretta Caretta ◽  
Sea Turtle ◽  
Loggerhead Sea Turtle

Pulmonary hair embolism in a rescued free-ranging Eurasian otter Lutra lutra in Kinmen, Taiwan

2020 ◽  
Vol 142 ◽  
pp. 55-61
Author(s):  
WT Li ◽  
YL Chiang ◽  
TY Chen ◽  
CL Lai
Keyword(s):  
Foreign Body ◽  
Traumatic Injury ◽  
Lung Parenchyma ◽  
Giant Cells ◽  
Hair Shaft ◽  
Lutra Lutra ◽  
Lung Lobe ◽  
Eurasian Otter ◽  
Foreign Body Giant Cells ◽  
Free Ranging

Eurasian otters Lutra lutra are listed as Near Threatened on the IUCN Red List and are imperiled by habitat loss, water pollution, and poaching. Harassment and attacks by stray animals are also recognized threats to the health of wild Eurasian otters. Pulmonary hair embolism is a possible complication in animals with deep traumatic injury, but to date no cases have been reported in wildlife. A free-ranging, adult male Eurasian otter was rescued due to severe emaciation and multiple bite wounds. The otter died 3 d after rescue and was necropsied. Grossly, a 1.5 × 1.5 × 1.5 cm firm nodule was observed in the left cranial lung lobe. Histologically, a fragment of hair shaft surrounded by multinucleated foreign body giant cells was observed in a medium-sized vein, and extensive eosinophilic infiltration was noted in the adjacent vascular wall and lung parenchyma. Based on the gross and histological findings, the pulmonary lesion was consistent with eosinophilic pneumonia and vasculitis induced by hair embolism. The presence of well-formed multinucleated foreign body giant cells and eosinophils may imply a late stage of foreign body reaction, and thus the presumptive source of hair embolism is an animal bite. This is the first report of pulmonary hair embolism associated with animal bite in a rescued free-ranging Eurasian otter.

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