Campos-Sosa A, Crespo-Picazo J L, Muñoz-Baquero M, García-Salinas P, Penadés-Suay J, García-Párraga D, Ortega J
Fundación Oceanogràfic de la Comunitat Valenciana, Valencia, 46013, Spain.
Departamento de Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, 46115 Alfara del Patriarca, Valencia, Spain.
Sci Rep. 2025 Aug 12;15(1):29546. doi: 10.1038/s41598-025-13617-9.
This article describes the pathological findings of ten blue sharks (Prionace glauca) stranded after fatal interactions with swordfish (Xiphias gladius) in the western Mediterranean. Multiple rostral fragments were found using diagnostic imaging techniques (X-rays and Computed Axial Tomography) or during necropsy, associated with severe injuries in all animals. The most affected organ was the encephalon, showing meningeal and brain hemorrhages, encephalomalacia, and acute encephalitis, followed by the eyes, which exhibited hemorrhage and acute panophthalmitis. Other commonly observed lesions included hepatic emaciation, necrotic hemorrhagic ulcers in the spiral valve, and glomerulonephritis. Interestingly, in some cases where multiple rostral fragments were observed, some were surrounded by fibrous connective tissue, indicating non-fatal previous interactions. This study suggests that swordfish interactions with blue sharks may be underestimated and reveals the importance of using diagnostic methods such as CT scans to effectively assess the presence of rostral fragments.
本文描述了在地中海西部因与剑鱼（Xiphias gladius）发生致命互动后搁浅的十条蓝鲨（Prionace glauca）的病理发现。使用诊断成像技术（X射线和计算机断层扫描）或在尸检过程中发现了多个吻部碎片，所有动物均伴有严重损伤。受影响最严重的器官是脑，表现为脑膜和脑内出血、脑软化和急性脑炎，其次是眼睛，表现为出血和急性全眼球炎。其他常见病变包括肝脏消瘦、螺旋瓣坏死性出血性溃疡和肾小球肾炎。有趣的是，在一些观察到多个吻部碎片的病例中，有些碎片被纤维结缔组织包围，表明之前发生过非致命性互动。这项研究表明，剑鱼与蓝鲨的互动可能被低估了，并揭示了使用CT扫描等诊断方法有效评估吻部碎片存在情况的重要性。
