Tuna Fernando A P, de Rodrigues Ana Paula C, Filgueira Gustavo P, da Bianca Rebeca S, Machado Wilson T V, Salomão Márcia C, Lavrado Helena P
Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
Programa de Geoquímica, Universidade Federal Fluminense, Rio de Janeiro, Brazil.
J Fish Dis. 2025 Jul;48(7):e14117. doi: 10.1111/jfd.14117. Epub 2025 Mar 27.
The description of skeletal disorders is commonly reported in fish species raised through aquaculture; however, wild marine fish may also exhibit high frequencies of anomalies, particularly the development of hyperostosis, a condition that causes thickening of the bones. Specimens of Oligoplites saliens (n = 15) and Oligoplites palometa (n = 14) were radiographed to verify hyperostotic bone occurrences. Hyperostosis was detected in all individuals (> 400 mm TL) analysed for both species, occurring in six distinct regions of the skeleton (supraoccipital bone, cleithrum, dorsal pterygiophores, anal pterygiophore, haemal spines, and neural spines), regardless of the sex of the individuals. No hyperostosis was found in the neural and haemal spines of O. palometa and in the anal pterygiophore of O. saliens. Histological sections of the supraoccipital bone of O. saliens were conducted, revealing high porosity characterised by the presence of vascular channels in bones with hyperostosis. The species exhibited species-specific patterns for the condition, demonstrating differences even among species of the same genus occurring in the same geographic area. This is the first record of hyperostosis for both species in Brazilian waters.
骨骼疾病的描述在通过水产养殖饲养的鱼类中很常见；然而，野生海洋鱼类也可能出现高频率的异常情况，尤其是骨质增生的发展，这种情况会导致骨骼增厚。对15条锯盖鱼（Oligoplites saliens）和14条斑鳍锯盖鱼（Oligoplites palometa）的样本进行了X光检查，以核实骨质增生骨骼的出现情况。在对这两个物种分析的所有个体（全长>400毫米）中都检测到了骨质增生，发生在骨骼的六个不同区域（上枕骨、匙骨、背鳍鳍担骨、臀鳍鳍担骨、脉棘和神经棘），无论个体的性别如何。在斑鳍锯盖鱼的神经棘和脉棘以及锯盖鱼的臀鳍鳍担骨中未发现骨质增生。对锯盖鱼的上枕骨进行了组织学切片，结果显示骨质增生的骨骼中存在血管通道，其孔隙率很高。这两个物种在这种情况下表现出物种特异性模式，即使在同一地理区域的同一属物种之间也存在差异。这是巴西水域这两个物种骨质增生的首次记录。
