Skin Lesions and Physical Deformities of Coastal and Offshore Common Bottlenose Dolphins (Tursiops truncatus) in Santa Monica Bay and Adjacent Areas, California

AMBIO ◽  
2009 ◽  
Vol 38 (2) ◽  
pp. 66-71 ◽  
Author(s):  
Maddalena Bearzi ◽  
Shana Rapoport ◽  
Jason Chau ◽  
Charles Saylan
2009 ◽  
Vol 60 (6) ◽  
pp. 584 ◽  
Author(s):  
Maddalena Bearzi ◽  
Charles A. Saylan ◽  
Alice Hwang

Populations of coastal and offshore bottlenose dolphins (Tursiops truncatus) are considered to differ ecologically, with implications for their protection and management. We assessed occurrence, distribution and behaviour of coastal and offshore populations of dolphins during a photo-identification study in Santa Monica Bay and nearby areas (1997–2007). Bottlenose dolphins occurred year-round and were encountered on 44.2% of all surveys (n = 425). We photo-identified 647 individuals; of these, 375 (58.0%) were coastal (<1 km from shore), 241 (37.2%) offshore (1–65 km from shore) and 31 were both (4.8%). Dolphins mostly travel (69.0%) and travel-dive (61.5%), with offshore dolphins socialising more (22.6%) than coastal. There were low re-sighting rates for both coastal and offshore dolphins. Low re-sighting rates of coastal individuals provide little evidence of year-round site fidelity, suggesting their range is greater than the study area. Several individuals were re-sighted between and over 1-year periods, often foraging. This suggests that coastal dolphins: (1) are highly mobile within inshore waters, but spend time foraging in the study area, and (2) range >1 km from shore, contrary to what has been previously reported.


2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Keiichi Ueda ◽  
Ayako Sano ◽  
Jyoji Yamate ◽  
Eiko Itano Nakagawa ◽  
Mitsuru Kuwamura ◽  
...  

Lacaziosis, formerly called lobomycosis, caused byLacazia loboi, is a zoonotic mycosis found in humans and dolphins and is endemic in the countries on the Atlantic Ocean. Although the Japanese coast is not considered an endemic area, photographic records of lacaziosis-like skin lesions were found in bottlenose dolphins (Tursiops truncatus) that were migrating in the Goto Islands (Nagasaki Prefecture, Japan). We diagnosed 2 cases of lacaziosis in bottlenose dolphins captured simultaneously at the same coast within Japanese territory on the basis of clinical characteristics, cytology, histopathology, immunological tests, and detection of partial sequences of a 43 kDa glycoprotein coding gene (gp43) with a nested-PCR system. The granulomatous skin lesions from the present cases were similar to those found in animals from endemic areas, containing multiple budding and chains of round yeast cells and positive in the immune-staining with anti-Paracoccidioides brasiliensisserum which is a fungal species related toL. loboi; however, thegp43gene sequences derived from the present cases showed 94.1% homology toP. brasiliensisand 84.1% toL. loboi. We confirmed that the causative agent at the present cases was different genotype ofL. loboifrom Amazon area.


PLoS ONE ◽  
2012 ◽  
Vol 7 (3) ◽  
pp. e33081 ◽  
Author(s):  
Leslie Burdett Hart ◽  
Dave S. Rotstein ◽  
Randall S. Wells ◽  
Jason Allen ◽  
Aaron Barleycorn ◽  
...  

2004 ◽  
Vol 30 (2) ◽  
pp. 299-310 ◽  
Author(s):  
Carrie W. Hubard ◽  
Kathy Maze-Foley ◽  
Keith D. Mullin ◽  
William W. Schroeder

2018 ◽  
Vol 43 (5) ◽  
pp. 519-528
Author(s):  
Manuela Zadravec ◽  
Zvonimir Kozarić ◽  
Snježana Kužir ◽  
Mario Mitak ◽  
Tomislav Gomerčić ◽  
...  

2018 ◽  
Vol 44 (3) ◽  
pp. 256-266 ◽  
Author(s):  
Don R. Bergfelt ◽  
John Lippolis ◽  
Michel Vandenplas ◽  
Sydney Davis ◽  
Blake A. Miller ◽  
...  

2004 ◽  
Vol 30 (3) ◽  
pp. 357-362 ◽  
Author(s):  
Alejandro Acevedo-Gutiérrez ◽  
Sarah C. Stienessen

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