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Pathology of Marine Mammals: What It Can Tell Us About Environment and Welfare

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Marine Mammal Welfare

Part of the book series: Animal Welfare ((AWNS,volume 17))

Abstract

The study of animal welfare continues to struggle with two persistent, interrelated problems: how to define animal welfare, and how to determine which measures should be used to evaluate it. One potential indicator of an animal’s welfare is the presence or absence of stress, or anything that seriously threatens homeostasis. The actual or perceived threat to an organism, the stressor, and the response will determine when stress becomes distress. Pathologically speaking, this occurs when tissue damage (lesions) and disease appears as a result of a severe (acute) or prolonged (chronic) stress response. Veterinary Pathology is a diagnostic tool, which looks for and identifies lesions involved in disease/s as well as determines cause/s of death. In this respect Veterinary Pathology could be a diagnostic tool of cetaceans’ (whales, dolphins and porpoises) welfare. In recent years, attention has been focused on how human activities may affect cetaceans, particularly through use of improving methods and techniques to identify and classify lesions, and to understand mechanisms and causes, in order to associate stressors with distress. In this chapter we discuss three test cases (beaked whales mass stranding and antisubmarine mid-frequency active sonar, active stranding and capture myopathy, fingerprints in the brain of dolphins). We show what animal pathology can do to contribute to animal welfare assessment in stranded cetaceans, ranging from death to improved population welfare.

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Authors and Affiliations

  1. Veterinary Histology and Pathology, Institute of Animal Health, University of Las Palmas de Gran Canaria, Canary Islands, Spain

    Antonio Fernández, Yara Bernaldo de Quirós, Simona Sacchini & Eva Sierra

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  1. Antonio Fernández
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  2. Yara Bernaldo de Quirós
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  3. Simona Sacchini
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  4. Eva Sierra
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Correspondence to Antonio Fernández .

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Editors and Affiliations

  1. Clinical Veterinary Science, University of Bristol, Langford, Bristol, United Kingdom

    Andy Butterworth

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Fernández, A., de Quirós, Y.B., Sacchini, S., Sierra, E. (2017). Pathology of Marine Mammals: What It Can Tell Us About Environment and Welfare. In: Butterworth, A. (eds) Marine Mammal Welfare. Animal Welfare, vol 17. Springer, Cham. https://doi.org/10.1007/978-3-319-46994-2_32

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