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Title: Occurrence and pathologies associated with foreign body ingestion in stranded cetaceans, Canary Islands
Authors: Bernaldo de Quirós Miranda, Yara 
Diaz Delgado, Josue 
Sierra Pulpillo, Eva María 
Sacchini , Simona 
Succa, Daniele 
Rivero Santana, Miguel Antonio 
Fernández Rodríguez, Antonio Jesús 
Arbelo Hernández, Manuel Antonio 
Puig Lozano, Raquel Patricia 
García Álvarez, Natalia 
De La Fuente, Jesús 
Suárez-Santana, Cristian 
Câmara, Nakita 
Saavedra Santana, Pedro 
Almunia Portoles, Francisco Javier
UNESCO Clasification: 310907 Patología
Keywords: Cetaceans
Canary Islands
Foreign body ingestion
Issue Date: 2020
Abstract: One of the major concerns in aquatic environment is the impact of marine litter. Plastic is the most prevalent item within marine litter and not only affects the chemical quality of the water but also impacts marine organisms. Currently, the presence of debris ingestion has been reported all over the world in different marine species, though little is known in cetaceans. In this research, we study the occurrence and pathologies associated with the presence of foreign bodies (FB) in stranded cetaceans in the Canary Islands during a sixteen years period (n = 465). Fifteen species were affected by FBs including eight out of the nine year-round species in the archipelago. A total of 36 individuals (7.74%; 36/465) presented at least one FB, being plastic the most common item found (80.56%). Deep divers were the most affected group with Grampus griseus as the most affected species followed by Physeter macrocephalus and beaked whales. Two individuals of baleen whales were also affected (Balaenoptera physalus and B. acutorostrata). Ingestion of debris was lethal in 36.11% (13/36) of the cases presenting lesions such as stomatitis, bleeding ulcers, gastritis, perforations and impactions. As previous reports, no lesions were found in ten individuals which presented ingested FB. This is the first forensic study that, based on statistical analysis, define two risk factors for FB ingestion (poor body condition and deep diving behavior) and a protective factor (adult age).
Source: World Marine Mammal Conference 2019. Barcelona, Spain, 9th-12th December
Appears in Collections:Actas de congresos
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