Suárez-Santana Cristian M, Marrero-Ponce Lucía, Quesada-Canales Óscar, Colom-Rivero Ana, Pino-Vera Román, Cabrera-Pérez Miguel A, Miquel Jordi, Melián-Melián Ayose, Foronda Pilar, Rivero-Herrera Candela, Caballero-Hernández Lucía, Velázquez-Wallraf Alicia, Fernandez Antonio
Unit of Veterinary Histology and Pathology, University Institute of Animal Health and Food Safety (IUSA), Veterinary School, University of Las Palmas de Gran Canaria (ULPGC), 35413 Las Palmas de Gran Canaria, Canary Islands, Spain.
Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, Av. Astrofísico F. Sánchez, sn, 38203 La Laguna, Canary Islands, Spain.
Animals (Basel). 2025 Apr 30;15(9):1281. doi: 10.3390/ani15091281.
The Atlantic puffin () is a seabird species characterized by great diving capabilities and transoceanic migratory behavior. These movements contribute to the dispersion of the species during migration, and episodes of mortality associated with migration may be a normal event in the dynamic of the Atlantic puffin populations. This study aimed to describe the anatomopathological findings of an unusual mortality event of Atlantic puffins observed during the non-breeding period along the coast of the Canary Islands. The most consistent gross finding during necropsy was generalized muscle atrophy and fat depletion. The main histological findings were centered in the urinary tract, with dilation and inflammation of the primary ureter branch and medullary cones, and intraluminal trematodes identified as based on morphology and molecular analysis. Influenza virus infection was ruled out. The postmortem investigations performed in this mortality event of Atlantic puffins indicate that the animals were severely emaciated and suffered from nephropathy. The etiopathological investigation performed in relation to this mortality event of Atlantic puffins indicates starvation associated with bad weather conditions during migratory movement as the most likely cause of the unusual mortality event.
大西洋海鹦（）是一种海鸟，具有出色的潜水能力和跨洋迁徙行为。这些迁徙活动有助于该物种在迁徙过程中的扩散，与迁徙相关的死亡事件可能是大西洋海鹦种群动态中的正常现象。本研究旨在描述在加那利群岛海岸非繁殖期观察到的大西洋海鹦异常死亡事件的解剖病理学发现。尸检时最一致的大体发现是全身肌肉萎缩和脂肪消耗。主要组织学发现集中在泌尿系统，主要输尿管分支和髓质锥体扩张并伴有炎症，根据形态学和分子分析确定管腔内的吸虫为。排除了流感病毒感染。对此次大西洋海鹦死亡事件进行的尸检调查表明，这些动物严重消瘦并患有肾病。针对此次大西洋海鹦死亡事件进行的病因病理学调查表明，迁徙过程中与恶劣天气条件相关的饥饿是此次异常死亡事件最可能的原因。
