Source levels and the estimated active space of bottlenose dolphin (Tursiops truncatus) whistles in the Moray Firth, Scotland

2000 ◽  
Vol 186 (7-8) ◽  
pp. 673-680 ◽  
Author(s):  
Vincent M. Janik
Keyword(s):  
Bottlenose Dolphin ◽  
Tursiops Truncatus ◽  
Active Space ◽  
Moray Firth

Presenting vertebral deformities in bottlenose dolphin Tursiops truncatus calves from a protected population in northeast Scotland

2020 ◽  
Vol 140 ◽  
pp. 103-108
Author(s):  
KP Robinson ◽  
GN Haskins ◽  
SM Eisfeld-Pierantonio ◽  
T Sidiropoulos ◽  
CCG Bamford
Keyword(s):  
North Sea ◽  
Bottlenose Dolphin ◽  
Tursiops Truncatus ◽  
Maternal Separation ◽  
Well Being ◽  
Early Age ◽  
Photo Identification ◽  
Causative Factors ◽  
Moray Firth ◽  
Dolphin Population

Photographs collected during a 23 yr photo-identification study in the Moray Firth were examined to assess the prevalence, type and severity of vertebral deformations present in bottlenose dolphin Tursiops truncatus calves. Fifteen cases of presenting spinal anomalies (scoliosis, kyphosis, lordosis and combinations thereof) of variable severity were identified in 7.4% of all known calves from the population. Thirteen of the 15 anomalies were either manifest from birth or acquired from an early age, as ascertained from longitudinal sightings histories of their mothers. Most afflicted calves died during early development or shortly after maternal separation. However, 3 survived to adulthood and persist in the population to date, in addition to 2 dependent infants whose fate remains to be established. At 15+ yr of age, the oldest surviving individual was remarkably one of the most severe cases identified, highlighting the ability of these delphinids for adaptation to such gross structural deformities. The aetiology of the observed conditions could be attributed to a range of causative factors that may have implications for the well-being and health of this North Sea coastal dolphin population, a topic which merits further investigation.

First Leucistic Bottlenose Dolphin (Tursiops truncatus) Sighting Registered in the Gulf of California, Mexico

2019 ◽  
Vol 45 (5) ◽  
pp. 507-512
Author(s):  
Héctor Pérez-Puig ◽  
Gisela Heckel ◽  
Lorayne Meltzer
Keyword(s):  
Bottlenose Dolphin ◽  
Tursiops Truncatus ◽  
Gulf Of California

Anatomical Description of an Infant Bottlenose Dolphin (Tursiops truncatus) Brain from Magnetic Resonance Images

2004 ◽  
Vol 30 (2) ◽  
pp. 315-326 ◽  
Author(s):  
Lori Marino ◽  
Keith Sudheimer ◽  
D. Ann Pabst ◽  
William A. Mclellan ◽  
Saima Arshad ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Bottlenose Dolphin ◽  
Tursiops Truncatus ◽  
Magnetic Resonance Images

Historic foraging ecology of the endangered Lahille's bottlenose dolphin (Tursiops truncatus gephyreus) inferred by stable isotopes

2021 ◽  
pp. 107393
Author(s):  
Andrea Campos-Rangel ◽  
Ricardo Bastida ◽  
Pedro Fruet ◽  
Paula Laporta ◽  
Humberto Luis Cappozzo ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Bottlenose Dolphin ◽  
Tursiops Truncatus ◽  
Foraging Ecology

scholarly journals Evaluation of postmortem changes in tissue structure in the bottlenose dolphin (Tursiops truncatus)

2007 ◽  
Vol 290 (8) ◽  
pp. 1023-1032 ◽  
Author(s):  
Megan F. Mckenna ◽  
Jeremy A. Goldbogen ◽  
Judy St. Leger ◽  
John A. Hildebrand ◽  
Ted W. Cranford
Keyword(s):  
Bottlenose Dolphin ◽  
Tursiops Truncatus ◽  
Tissue Structure ◽  
Postmortem Changes

Involution and Cystic Transformation of the Thymus in the Bottlenose Dolphin, Tursiops truncatus

1994 ◽  
Vol 31 (6) ◽  
pp. 648-653 ◽  
Author(s):  
D. F. Cowan
Keyword(s):  
Body Size ◽  
Bottlenose Dolphin ◽  
Tursiops Truncatus ◽  
Squamous Epithelium ◽  
Gulf Coast ◽  
Bottlenose Dolphins ◽  
Adult Life ◽  
Lymphoid Cells ◽  
Texas Gulf Coast ◽  
Thymic Cysts

The thymus glands of 10 bottlenose dolphins, Tursiops truncatus, collected along the Texas Gulf coast were examined using standard histologic and immunocytochemical methods. The thymus gland of Tursiops persists into adult life, represented by medulla and progressively thinning cortex. A network of epithelial cells, including Hassal bodies, is demonstrable using polyclonal anti-cytokeratin antibody. The network condenses, with loss of lymphoid cells as involution progresses. Cysts arise within the condensed network. These cysts, found in eight of 10 animals, increase in number and size with increasing body size. Body size tends to reflect age. Thymic cysts typically have an irregular shape when small but tend to become spherical as they enlarge. Theey may be lined by squamous epithelium of variable thickness. Eventually, the cysts become macroscopic and filled with a colloidlike material and may largely replace the thymus, which may be identified by noncystic remnants adjacent to the cysts.

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