② ミゾレのケースを国際学会(動物福祉学会)に提出できる分析文(Academic Case Report 形式)
以下は実際の動物福祉学会で採択されるフォーマットに近い形です。
Title
Welfare Assessment of a Juvenile Ringed Seal (Pusa hispida) Following Inter-Facility Transfer: A Case Analysis Based on the Five Domains Model
Abstract
This report evaluates the welfare outcomes of a captive ringed seal following transfer between two aquarium facilities. Using the Five Domains Model, major welfare challenges were identified in the domains of Nutrition, Environment, Health, and Behaviour, resulting in negative affective states. The case highlights the importance of psychological assessment, environmental enrichment validation, and transparent third-party review in marine mammal management.
Background
Species: Ringed Seal (Pusa hispida)
Origin: Osaka Aquarium Kaiyukan
Transfer: November 2023 → Otaru Aquarium
Death: June 2024
Notable: Strong human-oriented behavior, high dependency on specific keepers.
Reduced appetite post-transfer and during moult. → Nutritional welfare compromised.
Domain 2: Environment
Abrupt change in physical, climatic, and social environment. → High adjustment stress likely.
Domain 3: Health
Severe erosive and hemorrhagic lesions (tongue → stomach)
Chronic pyogenic dermatitis → Significant undetected or uncontrolled health decline.
Domain 4: Behaviour
Absence of conspecifics
Dependence on humans
Inadequate evaluation of enrichment effectiveness → Behavioural needs unmet.
Domain 5: Mental State
Likely anxiety, confusion, loneliness, and pain. → Sustained negative affective states.
Discussion
Transfer planning did not incorporate individual personality traits.
Behavioural monitoring was insufficient to detect declining welfare.
Internal-only review limits transparency and prevents systemic improvement.
Conclusion
This case demonstrates substantial welfare risks associated with marine mammal transfer and highlights the need for mandatory third-party oversight, validated enrichment programs, and psychological welfare assessments.