Bacteriological and histopathological findings in cetaceans that stranded in the Philippines from 2017 to 2018

The relatively high frequency of marine mammal stranding events in the Philippines provide many research opportunities. A select set of stranders (n = 21) from 2017 to 2018 were sampled for bacteriology and histopathology. Pertinent tissues and bacteria were collected from individuals representing e...

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Autores principales:	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 V. Aragones
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/24f3725a52a14284a30b6198ed1d88f7
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spelling	oai:doaj.org-article:24f3725a52a14284a30b6198ed1d88f72021-11-18T08:14:35ZBacteriological and histopathological findings in cetaceans that stranded in the Philippines from 2017 to 20181932-6203https://doaj.org/article/24f3725a52a14284a30b6198ed1d88f72021-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8584710/?tool=EBIhttps://doaj.org/toc/1932-6203The relatively high frequency of marine mammal stranding events in the Philippines provide many research opportunities. A select set of stranders (n = 21) from 2017 to 2018 were sampled for bacteriology and histopathology. Pertinent tissues and bacteria were collected from individuals representing eight cetacean species (i.e. Feresa attenuata, Kogia breviceps, Globicephala macrorhynchus, Grampus griseus, Lagenodelphis hosei, Peponocephala electra, Stenella attenuata and Stenella longirostris) and were subjected to histopathological examination and antibiotic resistance screening, respectively. The antibiotic resistance profiles of 24 bacteria (belonging to genera Escherichia, Enterobacter, Klebsiella, Proteus, and Shigella) that were isolated from four cetaceans were determined using 18 antibiotics. All 24 isolates were resistant to at least one antibiotic class, and 79.17% were classified as multiple antibiotic resistant (MAR). The MAR index values of isolates ranged from 0.06 to 0.39 with all the isolates resistant to erythromycin (100%; n = 24) and susceptible to imipenem, doripenem, ciprofloxacin, chloramphenicol, and gentamicin (100%; n = 24). The resistance profiles of these bacteria show the extent of antimicrobial resistance in the marine environment, and may inform medical management decisions during rehabilitation of stranded cetaceans. Due to inadequate gross descriptions and limited data gathered by the responders during the stranding events, the significance of histopathological lesions in association with disease diagnosis in each cetacean stranding or mortality remained inconclusive; however, these histopathological findings may be indicative or contributory to the resulting debility and stress during their strandings. The findings of the study demonstrate the challenges faced by cetacean species in the wild, such as but not limited to, biological pollution through land-sea movement of effluents, fisheries interactions, and anthropogenic activities.Marie Christine M. ObusanJamaica Ann A. CarasLara Sabrina L. LumangErika Joyce S. CalderonRen Mark D. VillanuevaCristina C. SalibayMaria Auxilia T. SiringanWindell L. RiveraJoseph S. MasangkayLemnuel V. AragonesPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q 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 V. Aragones Bacteriological and histopathological findings in cetaceans that stranded in the Philippines from 2017 to 2018
description	The relatively high frequency of marine mammal stranding events in the Philippines provide many research opportunities. A select set of stranders (n = 21) from 2017 to 2018 were sampled for bacteriology and histopathology. Pertinent tissues and bacteria were collected from individuals representing eight cetacean species (i.e. Feresa attenuata, Kogia breviceps, Globicephala macrorhynchus, Grampus griseus, Lagenodelphis hosei, Peponocephala electra, Stenella attenuata and Stenella longirostris) and were subjected to histopathological examination and antibiotic resistance screening, respectively. The antibiotic resistance profiles of 24 bacteria (belonging to genera Escherichia, Enterobacter, Klebsiella, Proteus, and Shigella) that were isolated from four cetaceans were determined using 18 antibiotics. All 24 isolates were resistant to at least one antibiotic class, and 79.17% were classified as multiple antibiotic resistant (MAR). The MAR index values of isolates ranged from 0.06 to 0.39 with all the isolates resistant to erythromycin (100%; n = 24) and susceptible to imipenem, doripenem, ciprofloxacin, chloramphenicol, and gentamicin (100%; n = 24). The resistance profiles of these bacteria show the extent of antimicrobial resistance in the marine environment, and may inform medical management decisions during rehabilitation of stranded cetaceans. Due to inadequate gross descriptions and limited data gathered by the responders during the stranding events, the significance of histopathological lesions in association with disease diagnosis in each cetacean stranding or mortality remained inconclusive; however, these histopathological findings may be indicative or contributory to the resulting debility and stress during their strandings. The findings of the study demonstrate the challenges faced by cetacean species in the wild, such as but not limited to, biological pollution through land-sea movement of effluents, fisheries interactions, and anthropogenic activities.
format	article
author	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 V. Aragones
author_facet	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 V. Aragones
author_sort	Marie Christine M. Obusan
title	Bacteriological and histopathological findings in cetaceans that stranded in the Philippines from 2017 to 2018
title_short	Bacteriological and histopathological findings in cetaceans that stranded in the Philippines from 2017 to 2018
title_full	Bacteriological and histopathological findings in cetaceans that stranded in the Philippines from 2017 to 2018
title_fullStr	Bacteriological and histopathological findings in cetaceans that stranded in the Philippines from 2017 to 2018
title_full_unstemmed	Bacteriological and histopathological findings in cetaceans that stranded in the Philippines from 2017 to 2018
title_sort	bacteriological and histopathological findings in cetaceans that stranded in the philippines from 2017 to 2018
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/24f3725a52a14284a30b6198ed1d88f7
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Bacteriological and histopathological findings in cetaceans that stranded in the Philippines from 2017 to 2018

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