Article
Environmental Sciences
Margaret E. Martinez, Michelle Rivard, Chelsea Sykes, Jaclyn Isbell, Sarah W. Grimes, Robert Poppenga, Padraig J. Duignan
Summary: This study reports the first case series of osteofluorosis in free-ranging marine mammals, documenting baseline bone fluoride concentrations in this population. The cases exhibited osseous proliferations and increased tooth wear, with significantly higher fluoride concentrations in their bones compared to normal individuals. This is the first report of osteofluorosis in free-ranging marine mammals, highlighting the need for understanding the exact source of excessive fluoride levels in this population.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Veterinary Sciences
Sophie T. Whoriskey, Padraig J. Duignan, Abby M. McClain, Mauricio Seguel, Frances M. D. Gulland, Shawn P. Johnson, Cara L. Field
Summary: California sea lions with Sarcocystis-associated polyphasic rhabdomyositis presented with highly variable clinical signs, treatment options are limited, and further diagnostic testing may be necessary to confirm the diagnosis. The prognosis remains guarded despite treatment with antiprotozoal drugs and corticosteroids.
JAVMA-JOURNAL OF THE AMERICAN VETERINARY MEDICAL ASSOCIATION
(2021)
Review
Parasitology
J. P. Dubey, B. M. Rosenthal
Summary: Infections by Sarcocystis in cattle are widespread and there is debate regarding their identity. Accurate diagnosis is important for assessing economic and public health impact. Seven named species and several unnamed species of Sarcocystis have been identified. Two species are zoonotic. Sarcocystis infections have also been linked to bovine eosinophilic myositis, which results in economic losses.
INTERNATIONAL JOURNAL FOR PARASITOLOGY
(2023)
Article
Ecology
Judy St. Leger, Yang Chen, Kristen Sakamaki, Alexandria Mena, Stephen A. Raverty, David Rotstein, Michael E. Grigg
Summary: Fatal hepatic sarcocystosis was diagnosed as the cause of death in four pinnipeds. Through necropsy, histopathology, electron microscopy, and DNA sequencing, a novel Sarcocystis canis-like variant was discovered and found to infect pinnipeds. Further research is needed to identify the life cycle and hosts of this variant.
INTERNATIONAL JOURNAL FOR PARASITOLOGY-PARASITES AND WILDLIFE
(2023)
Article
Environmental Sciences
Jayme Smith, Jacob A. Cram, Malena P. Berndt, Vanessa Hoard, Dana Shultz, Alissa C. Deming
Summary: Domoic acid, a neurotoxin produced by the diatom genus Pseudo-nitzschia, is widespread in coastal environments globally. California sea lions, as an indicator species, can predict domoic acid concentrations through their strandings. Domoic acid concentrations at Stearns Wharf are related to stranding probabilities of sea lions in Orange County.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
T. E. Symon, D. A. Murillo-Cisneros, C. J. Hernandez-Camacho, T. M. O'Hara, R. J. Taylor, C. A. Rosado-Berrios, J. P. Vazquez-Medina, T. Zenteno-Savin
Summary: This study investigated the concentrations of total mercury (THg) and selenium (TSe) in California sea lion lanugo and examined the effects of sex, morphometrics, and year. The results showed that most pups had THg concentrations below the toxicological thresholds, and female sea lions had significantly higher TSe concentrations than males. Furthermore, THg and TSe concentrations were higher in 2022 compared to 2021.
MARINE POLLUTION BULLETIN
(2023)
Article
Agriculture, Dairy & Animal Science
Alissa C. Deming, James F. X. Wellehan, Kathleen M. Colegrove, Ailsa Hall, Jennifer Luff, Linda Lowenstine, Padraig Duignan, Galaxia Cortes-Hinojosa, Frances M. D. Gulland
Summary: Research found a high prevalence of herpesvirus OtHV1 in California sea lions with urogenital carcinoma, with high viral loads and gene expression in tumors. The virus was also detected in sea lions without cancer but in a dormant state, indicating its role in cancer development.
Article
Environmental Sciences
Daphne Wrobel Goldberg, Marina Molinas Alcala, Daniela Farias da Nobrega, Fabio Parra Sellera, Solange Fonseca, Jose Soares Ferreira Neto, Denise Batista Nogueira, Marcos Bryan Heinemann
Summary: A case of disseminated mycobacteriosis caused by M. gordonae in a free-ranging sea turtle was reported in Rio de Janeiro, Brazil. The turtle exhibited granulomas and caseous exudate in multiple organs, and acid-fast bacteria were observed in various tissues. The source of the Mycobacterium remains unknown, but increased surveillance of mycobacterial species in wild sea turtles is crucial to understand their role as causative agents of infections.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Infectious Diseases
Juan Carlos Pereida-Aguilar, Cecilia Barragan-Vargas, Carlos Dominguez-Sanchez, Roberto Carlos Alvarez-Martinez, Karina Acevedo-Whitehouse
Summary: The study investigated the genital bacteriome in California sea lions and found geographic variations in the diversity and abundance of the bacteriome. The bacteriome composition was associated with epithelial status and inflammation, with certain bacterial taxa driving the differences. This study is the first to explore the relationship between bacteriome and epithelial status in a marine species prone to developing cancer.
INFECTION GENETICS AND EVOLUTION
(2023)
Article
Biochemistry & Molecular Biology
Inge van der Knaap, Jan Reubens, Len Thomas, Michael A. Ainslie, Hendrik Winter, Jeroen Hubert, Bruce Martin, Hans Slabbekoorn
Summary: A full-scale seismic survey was found to affect the movement behavior of free-swimming Atlantic cod, with the fish leaving the detection area more quickly in the days and weeks following the survey. During the exposure, the cod decreased their activity, disrupting their diurnal activity cycles and potentially affecting energy budgets at the population level.
Article
Biochemical Research Methods
Peter F. Cook, Vanessa A. Hoard, Sudipto Dolui, Blaise DeB Frederick, Richard Redfern, Sophie E. Dennison, Barbie Halaska, Josh Bloom, Kris T. Kruse-Elliott, Emily R. Whitmer, Emily J. Trumbull, Gregory S. Berns, John A. Detre, Mark D'Esposito, Frances M. D. Gulland, Colleen Reichmuth, Shawn P. Johnson, Cara L. Field, Ben A. Inglis
Summary: The study introduces an MRI protocol for evaluating DOM toxicosis in sea lion brains, focusing on the hippocampal formation. Results broadly align with prior studies, with differences likely due to the 3D approach used. The study also demonstrates the first cerebral blood flow map using MRI in sea lions.
JOURNAL OF NEUROSCIENCE METHODS
(2021)
Article
Multidisciplinary Sciences
Marie Christine M. Obusan, Jamaica Ann A. Caras, Lara Sabrina L. Lumang, Erika Joyce S. Calderon, Ren Mark D. Villanueva, Cristina C. Salibay, Maria Auxilia T. Siringan, Windell L. Rivera, Joseph S. Masangkay, Lemnuel Aragones
Summary: Research on bacterial resistance in stranded cetaceans in the Philippines revealed that these marine mammals are resistant to multiple antibiotics, indicating the extent of antimicrobial resistance in the marine environment.
Article
Infectious Diseases
Tanya J. Kerr, Wynand J. Goosen, Rachiel Gumbo, Lin-Mari de Klerk-Lorist, Oonagh Pretorius, Peter E. Buss, Leanie Kleynhans, Konstantin P. Lyashchenko, Robin M. Warren, Paul D. van Helden, Michele A. Miller
Summary: Bovine tuberculosis negatively affects the wildlife industry, and accurate detection tools for M. bovis infection are crucial for surveillance and management of wildlife populations. This study found evidence of M. bovis infection in hippopotamus from GKPA, suggesting the risk of interspecies transmission and supporting the hypothesis that M. bovis infection may be under recognized in hippos.
TRANSBOUNDARY AND EMERGING DISEASES
(2022)
Article
Veterinary Sciences
Yuki Takami, Miyuu Tanaka, Masahiro Morita, Takaya Maruno, Naohiro Anai, Tsubasa Sudo, Chiho Kezuka, Takeshi Izawa, Jyoji Yamate, Mitsuru Kuwamura
Summary: This study reports the first case of pleural mesothelioma in a California sea lion. The case presented with symptoms of anorexia, lethargy, abnormal protrusion of the skin, and oral respiration. Multiple yellowish-white nodules were found in the thoracic cavity and lungs during necropsy. Histopathological analysis revealed these nodules to be pleural mesothelioma.
JOURNAL OF VETERINARY MEDICAL SCIENCE
(2023)
Article
Veterinary Sciences
Jordan B. Greenfield, Madison V. Anderson, Emily A. Dorey, Elizabeth Redman, John S. Gilleard, Nicole M. Nemeth, Jamie L. Rothenburger
Summary: A free-ranging juvenile male black bear was found dead in Alberta, Canada, with severe nonsuppurative encephalitis and sarcocystosis caused by Sarcocystis canis or a closely related species. This represents a novel presentation of fatal encephalitis associated with this parasite in bears. Sarcocystosis should be considered as a potential differential diagnosis for nonsuppurative encephalitis in bears.
JOURNAL OF VETERINARY DIAGNOSTIC INVESTIGATION
(2022)
Article
Neurosciences
Peter F. Cook, Colleen Reichmuth, Andrew Rouse, Sophie Dennison, Bill Van Bonn, Frances Gulland
NEUROTOXICOLOGY AND TERATOLOGY
(2016)
Article
Fisheries
E. K. Pomaranski, S. R. Reichley, R. Yanong, J. Shelley, D. B. Pouder, J. C. Wolf, K. V. Kenelty, B. Van Bonn, F. Oliaro, B. Byrne, K. A. Clothier, M. J. Griffin, A. C. Camus, E. Soto
JOURNAL OF FISH DISEASES
(2018)
Article
Microbiology
Cesar Cardona, Simon Lax, Peter Larsen, Brent Stephens, Jarrad Hampton-Marcell, Christian F. Edwardson, Chris Henry, Bill Van Bonn, Jack A. Gilbert
Article
Marine & Freshwater Biology
Eric W. Montie, Elizabeth Wheeler, Nicola Pussini, Thomas W. K. Battey, William Van Bonn, Frances Gulland
Article
Veterinary Sciences
William Van Bonn
JOURNAL OF EXOTIC PET MEDICINE
(2009)
Article
Veterinary Sciences
Michelle R. Davis, Jennifer N. Langan, Yvette J. Johnson, Branson W. Ritchie, William Van Bonn
JOURNAL OF ZOO AND WILDLIFE MEDICINE
(2008)
Article
Veterinary Sciences
Elizabeth M. Stringer, William Van Bonn, Sathya K. Chinnadurai, Frances M. D. Gulland
JOURNAL OF ZOO AND WILDLIFE MEDICINE
(2012)
Article
Marine & Freshwater Biology
Sharon R. Melin, Martin Haulena, William Van Bonn, Mathew J. Tennis, Robin F. Brown, Jeffrey D. Harris
MARINE MAMMAL SCIENCE
(2013)
Article
Biochemistry & Molecular Biology
Lizabeth Bowen, A. Keith Miles, Michael Murray, Martin Haulena, Judy Tuttle, William Van Bonn, Lance Adams, James L. Bodkin, Brenda Ballachey, James Estes, Tim Tinker, Robin Keister, Jeffrey L. Stott
MOLECULAR ECOLOGY RESOURCES
(2012)
Article
Microbiology
Hendrik H. Nollens, James F. X. Wellehan, Jeremiah T. Saliki, Shannon L. Caseltine, Eric D. Jensen, William Van Bonn, Stephanie Venn-Watson
VETERINARY MICROBIOLOGY
(2008)
Article
Physiology
William Van Bonn, Sophie Dennison, Peter Cook, Andreas Fahlman
FRONTIERS IN PHYSIOLOGY
(2013)
Article
Biology
Todd R. Robeck, Zhe Fei, Ake T. Lu, Amin Haghani, Eve Jourdain, Joseph A. Zoller, Caesar Z. Li, Karen J. Steinman, Stacy DiRocco, Todd Schmitt, Steve Osborn, Bill Van Bonn, Etsuko Katsumata, June Mergl, Javier Almunia, Magdalena Rodriguez, Martin Haulena, Christopher Dold, Steve Horvath
Summary: Researchers developed an epigenetic clock for odontocetes using DNA methylation profiling, allowing for accurate age estimation and identification of sex in wild individuals. This clock serves as a valuable tool for wildlife conservation efforts.
COMMUNICATIONS BIOLOGY
(2021)
Article
Marine & Freshwater Biology
William Van Bonn, Francis Oliaro, Lee Pinnell
Summary: Highly managed and built environments like zoos and aquaria provide valuable data for environmental monitoring over long periods of time. A study conducted a water change in an artificial sea water system housing marine mammals, and found significant disruption in the water community structure while the host-associated communities remained stable. This research contributes to the understanding of optimizing conditions for resident animals in response to environmental perturbations.
OCEANS-SWITZERLAND
(2022)
Article
Fisheries
Lee J. Pinnell, Francis J. Oliaro, William Van Bonn
Summary: This study investigated the microbiota associated with yellow stingrays from different populations, including wild rays, aquarium-housed rays originally caught in the wild, and aquarium-born rays. The results showed significant differences in microbial communities among these populations, indicating that the transition from wild to managed environments alters the host-microbe relationship in yellow stingrays. The findings lend support towards improving aquarium disinfection strategies and expanding cooperative breeding programs in the zoo and aquarium community.
MARINE AND FRESHWATER RESEARCH
(2021)