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Inohana M, Komine T, Tanaka Y, Kurata O, Wada S. Genital mycobacteriosis caused by Mycobacterium marinum detected in two captive sharks by peptide nucleic acid-fluorescence in situ hybridization. JOURNAL OF FISH DISEASES 2023; 46:47-59. [PMID: 36130072 PMCID: PMC10087912 DOI: 10.1111/jfd.13716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/08/2022] [Accepted: 09/08/2022] [Indexed: 06/15/2023]
Abstract
Mycobacterium marinum is a prevalent nontuberculous mycobacterium (NTM)-infecting teleosts. Conversely, little is known about mycobacteriosis in elasmobranchs, and M. marinum infection has never been reported from the subclass. This study investigated the histopathological characteristics and localization of this mycobacterium through molecular analysis of two captive sharks, a scalloped hammerhead Sphyrna lewini and a Japanese bullhead shark Heterodontus japonicus, exhibited in the same aquarium tank. We detected genital mycobacteriosis caused by M. marinum infection using molecular analyses, including polymerase chain reaction (PCR) and DNA sequencing targeting the 60 kDa heat-shock protein gene (hsp65), and peptide nucleic acid-fluorescence in situ hybridization (PNA-FISH) targeting the 16S rRNA gene. Both sharks showed granulomas in connective tissues of the gonads without central necrosis or surrounding fibrous capsules, which is unlike the typical mycobacterial granulomas seen in teleosts. This study reveals that elasmobranchs can be aquatic hosts of M. marinum. Because M. marinum is a representative waterborne NTM and a potential zoonotic agent, cautious and intensive research is needed to overcome a lack of data on the relationship between NTM and the aquatic environment in association with this subclass of Chondrichthyes.
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Affiliation(s)
- Mari Inohana
- Laboratory of Aquatic Medicine, School of Veterinary Medicine, Faculty of Veterinary Medical ScienceNippon Veterinary and Life Science UniversityMusashinoJapan
| | - Takeshi Komine
- Laboratory of Aquatic Medicine, School of Veterinary Medicine, Faculty of Veterinary Medical ScienceNippon Veterinary and Life Science UniversityMusashinoJapan
| | | | - Osamu Kurata
- Laboratory of Aquatic Medicine, School of Veterinary Medicine, Faculty of Veterinary Medical ScienceNippon Veterinary and Life Science UniversityMusashinoJapan
| | - Shinpei Wada
- Laboratory of Aquatic Medicine, School of Veterinary Medicine, Faculty of Veterinary Medical ScienceNippon Veterinary and Life Science UniversityMusashinoJapan
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Correia Costa I, Amorim de Oliveira M, Wosnick N, Ann Hauser-Davis R, Siciliano S, Nunes JLS. Elasmobranch-associated microbiota: a scientometric literature review. PeerJ 2022; 10:e14255. [PMID: 36345481 PMCID: PMC9636872 DOI: 10.7717/peerj.14255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 09/26/2022] [Indexed: 11/07/2022] Open
Abstract
Elasmobranchs provide greatly relevant ecosystem services for the balance of the environments in which they are inserted. In recent decades, sharp population declines have been reported for many species in different regions worldwide, making this taxonomic group currently one of the most threatened with extinction. This scenario is almost entirely due to excessive fishing pressure, but any contributing factor that may cause additional mortality to populations must be mapped and monitored. In a fast-changing world, emerging marine pollution associated with climate change display the potential to increase the spread of infectious agents. These can, in turn, lead to mortality events, both directly and indirectly, by reducing immune responses and the physical and nutritional condition of affected individuals. In this context, the present study aimed to analyze data concerning elasmobranch-associated microbiota, identifying study trends and knowledge gaps in order to direct future studies on this topic of growing relevance for the health of wild populations, as well as individuals maintained in captivity, considering the zoonotic potential of these microorganisms.
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Affiliation(s)
- Ivana Correia Costa
- Laboratório de Organismos Aquáticos, Universidade Federal do Maranhão, São Luís, Maranhão, Brazil
| | - Mariene Amorim de Oliveira
- Laboratório de Genética e Biologia Molecular, Universidade Federal do Maranhão, São Luís, Maranhão, Brazil
| | - Natascha Wosnick
- Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | - Rachel Ann Hauser-Davis
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Salvatore Siciliano
- Departamento de Ciências Biológicas, Escola Nacional de Saúde Pública/FIOCRUZ, Rio de Janeiro, Brazil
| | - Jorge Luiz Silva Nunes
- Laboratório de Organismos Aquáticos, Universidade Federal do Maranhão, São Luís, Maranhão, Brazil
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Ishii Y, Kawakami H, Mekata T, Sugiyama A. Histopathological Features of Mycobacterium chelonae Infection in Two Farmed Japanese Pufferfish (Takifugu rubripes). J Comp Pathol 2019; 170:86-90. [PMID: 31375164 DOI: 10.1016/j.jcpa.2019.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 06/10/2019] [Accepted: 06/18/2019] [Indexed: 02/07/2023]
Abstract
Granulomatous lesions were observed in the swim bladder, kidney, spleen and gills of two farmed Japanese pufferfish (Takifugu rubripes) infected with Mycobacterium chelonae. Three types of lesions were noted: unencapsulated clusters of epithelioid cells without central necrosis (type 1), encapsulated granulomas without central necrosis (type 2) and encapsulated granulomas with central necrosis (type 3). Type 3 lesions occurred most frequently in the swim bladder, while type 1 and type 2 lesions occurred frequently in the kidney and spleen, and the gills exhibited mostly type 1 lesions. This suggests that the lesions in the swim bladder were more fully developed than those occurring elsewhere and that the swim bladder may be more susceptible to infection with M. chelonae. This is the first report describing the histopathological features of M. chelonae infection in Tetraodontidae.
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Affiliation(s)
- Y Ishii
- Ehime Fisheries Research Center, Ehime Research Institute of Agriculture, Forestry and Fisheries, Ehime, Japan
| | - H Kawakami
- Ehime Fisheries Research Center, Ehime Research Institute of Agriculture, Forestry and Fisheries, Ehime, Japan
| | - T Mekata
- National Research Institute of Aquaculture, Japan Fisheries Research and Education Agency, Mie, Japan
| | - A Sugiyama
- Faculty of Veterinary Medicine, Okayama University of Science, Ehime, Japan.
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Tuxbury KA, Young SA, Bradway DS, Marola JL, Salfinger M, Garner MM. Acute disseminated mycobacteriosis in captive Atlantic guitarfish (Rhinobatos lentiginosus). J Vet Diagn Invest 2017; 29:935-938. [DOI: 10.1177/1040638717721731] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
An adult female captive-born Atlantic guitarfish ( Rhinobatos lentiginosus) was found acutely moribund on exhibit and died soon after presentation. Abnormalities on autopsy were focal cutaneous erythema on the tail, a small liver, many variably sized friable ovarian follicles, and coelomic effusion. Histologic examination revealed systemic bacterial embolization, and yolk coelomitis with minimal associated inflammation and some mineralization. Bacterial culture of blood and coelomic effusion grew a rapidly growing Mycobacterium species that was further identified as Mycobacterium chelonae by PCR amplification and sequencing of the RNA polymerase subunit beta ( rpoB) gene of isolated genomic DNA. Concurrent reproductive disease may have caused immunosuppression, thus predisposing to the mycobacterial infection. At another institution, an adult male wild-caught Atlantic guitarfish was found dead on exhibit with no premonitory signs. Abnormalities on autopsy were a thin body condition, small liver, and coelomic effusion. Histologic examination revealed acute mycobacterial septicemia. M. chelonae was also identified in this fish by PCR amplification and sequencing. Mycobacteriosis has rarely been reported in captive elasmobranchs. Guitarfish may have greater susceptibility to mycobacteriosis than other elasmobranchs, and acute and chronic manifestations of the disease may exist in this species.
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Affiliation(s)
- Kathryn A. Tuxbury
- Animal Health Department, New England Aquarium, Boston, MA (Tuxbury)
- Greensboro Science Center, Greensboro, NC (Young)
- Washington Animal Disease Diagnostic Laboratory, Pullman, WA (Bradway)
- National Jewish Health Advanced Diagnostic Laboratories, Denver, CO (Marola, Salfinger)
- Northwest ZooPath, Monroe, WA (Garner)
| | - Samuel A. Young
- Animal Health Department, New England Aquarium, Boston, MA (Tuxbury)
- Greensboro Science Center, Greensboro, NC (Young)
- Washington Animal Disease Diagnostic Laboratory, Pullman, WA (Bradway)
- National Jewish Health Advanced Diagnostic Laboratories, Denver, CO (Marola, Salfinger)
- Northwest ZooPath, Monroe, WA (Garner)
| | - Daniel S. Bradway
- Animal Health Department, New England Aquarium, Boston, MA (Tuxbury)
- Greensboro Science Center, Greensboro, NC (Young)
- Washington Animal Disease Diagnostic Laboratory, Pullman, WA (Bradway)
- National Jewish Health Advanced Diagnostic Laboratories, Denver, CO (Marola, Salfinger)
- Northwest ZooPath, Monroe, WA (Garner)
| | - Jamie L. Marola
- Animal Health Department, New England Aquarium, Boston, MA (Tuxbury)
- Greensboro Science Center, Greensboro, NC (Young)
- Washington Animal Disease Diagnostic Laboratory, Pullman, WA (Bradway)
- National Jewish Health Advanced Diagnostic Laboratories, Denver, CO (Marola, Salfinger)
- Northwest ZooPath, Monroe, WA (Garner)
| | - Max Salfinger
- Animal Health Department, New England Aquarium, Boston, MA (Tuxbury)
- Greensboro Science Center, Greensboro, NC (Young)
- Washington Animal Disease Diagnostic Laboratory, Pullman, WA (Bradway)
- National Jewish Health Advanced Diagnostic Laboratories, Denver, CO (Marola, Salfinger)
- Northwest ZooPath, Monroe, WA (Garner)
| | - Michael M. Garner
- Animal Health Department, New England Aquarium, Boston, MA (Tuxbury)
- Greensboro Science Center, Greensboro, NC (Young)
- Washington Animal Disease Diagnostic Laboratory, Pullman, WA (Bradway)
- National Jewish Health Advanced Diagnostic Laboratories, Denver, CO (Marola, Salfinger)
- Northwest ZooPath, Monroe, WA (Garner)
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Kearns PJ, Bowen JL, Tlusty MF. The skin microbiome of cow-nose rays (Rhinoptera bonasus) in an aquarium touch-tank exhibit. Zoo Biol 2017; 36:226-230. [PMID: 28544080 DOI: 10.1002/zoo.21362] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 03/09/2017] [Accepted: 04/11/2017] [Indexed: 01/15/2023]
Abstract
Public aquaria offer numerous educational opportunities for visitors while touch-tank exhibits offer guests the ability to directly interact with marine life via physical contact. Despite the popularity of touch-tanks, there is a paucity of research about animal health in these exhibits and, in particular, there is little research on the microbial communities in these highly interactive exhibits. Microbial community structure can have implications for both host health and habitat function. To better understand the microbiome of a touch-tank we used high-throughput sequencing of the 16S rRNA gene to analyze the microbial community on the dorsal and ventral surfaces of cow-nose rays (Rhinoptera bonasus) as well as their environment in a frequently visited touch-tank exhibit at the New England Aquarium. Our analyses revealed a distinct microbial community associated with the skin of the ray that had lower diversity than the surrounding habitat. The ray skin was dominated by three orders: Burkholderiales (∼55%), Flavobacteriales (∼19%), and Pseudomonadales (∼12%), taxonomic groups commonly associated with other fish species. Our results provide a survey of ray-associated bacterial communities in a touch-tank environment, thereby laying the foundation for future studies examining the role of potential challenges to ray microbiota and their associated health.
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Affiliation(s)
- Patrick J Kearns
- Department of Biology, University of Massachusetts Boston, Boston, Massachusetts
| | - Jennifer L Bowen
- Department of Biology, University of Massachusetts Boston, Boston, Massachusetts
| | - Michael F Tlusty
- Anderson Cabot Center for Ocean Life, New England Aquarium, Boston, Massachusetts.,School for the Environment, University of Massachusetts Boston, Boston, Massachusetts
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