Background: Cutaneous infections are important diseases in captive and free-ranging pinnipeds and are associated with various causative agents. Some special agents, such as fungi, morbillivirus and mycobacteria, can cause cutaneous specific granulomatous inflammation.
Objectives: To identity the cause of chronic dermatitis in a spotted seal in an aquarium.
Methods: Herein, we analyze the clinical history and cutaneous samples of the spotted seal through differential diagnosis (histopathology, microorganism culture, special histochemical staining methods, PCR), and antibiotic susceptibility test.
Results: This is a rare pyogranulomatous dermatitis case caused by E. faecalis in a captive adult male spotted seal (Phoca largha) in an aquarium.
Conclusions: We provide a meaningful approach to the diagnosis and treatment of bacterial dermatitis in pinnipeds.
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http://dx.doi.org/10.1002/vms3.973 | DOI Listing |
Sci Total Environ
December 2024
North Slope Borough, Department of Wildlife Management, Utqiaġvik, AK 99723, USA; Institute of Arctic Biology, University of Alaska, Fairbanks, AK 99708, USA.
Ringed (Pusa hispida), bearded (Erignathus barbatus), spotted (Phoca largha), and ribbon (Histriophoca fasciata) seals are ice-associated seals that are important subsistence resources for coastal Alaska Native people. These seals are also mid- to upper trophic level Arctic predators and primary prey of polar bears (Ursus maritimus). We analyzed concentrations of 19 trace elements in seal liver, kidney, muscle, and blubber, including arsenic, cadmium, lead, mercury, and vanadium due to their potential toxicity.
View Article and Find Full Text PDFJ Zoo Wildl Med
December 2024
Alaska SeaLife Center, Seward, AK 99664.
Recent unusual mortality events involving skin pathology in bearded (), ringed (), and spotted seals () in Alaska highlight the potential sensitivity of ice-associated species to the complex effects of climate change. The regulation of thyroid hormones, cortisol, and vitamin A have been shown to play essential roles in skin health and seasonal molt in some pinnipeds. Unfortunately, the lack of available reference data for healthy Alaskan ice seals has prevented the adequate evaluation of these factors in cases associated with mortality events.
View Article and Find Full Text PDFMar Pollut Bull
January 2025
Department of Marine Science and Convergence Technology, College of Science and Convergence Technology, Hanyang University, Ansan 15588, Republic of Korea. Electronic address:
Mar Biotechnol (NY)
November 2024
Dalian Key Laboratory of Conservation Biology for Endangered Marine Mammals, Liaoning Ocean and Fisheries Science Research Institute, Dalian, 116023, Liaoning, China.
The spotted seal (Phoca largha) is the sole pinniped species that can reproduce in China and has been classified as the First-Grade State Protection animal. The conventional method for the protection and maintenance of the spotted seal population is the captive maintenance of the species in artificially controlled environments. Nevertheless, the efficacy of the captive strategy remains uncertain, with the potential to impact the health of spotted seals through alterations in gut microbiota.
View Article and Find Full Text PDFInt Microbiol
November 2024
Dalian Key Laboratory of Conservation Biology for Endangered Marine Mammals, Liaoning Ocean and Fisheries Science Research Institute, Dalian, 116023, Liaoning, China.
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