Tuna Fernando A P, Calixto Flávia A A, Cordeiro Woodson L, Luz Marcelline, Mesquita Eliana F M
Faculdade de Veterinária, Universidade Federal Fluminense, Rio de Janeiro, Brazil.
Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
J Fish Dis. 2024 Feb;47(2):e13882. doi: 10.1111/jfd.13882. Epub 2023 Oct 24.
Marine teleost species of commercial interest are often reported with hyperostosis, an osteological condition that results in bone thickening. Various specimens of Atlantic Spadefish Chaetodipterus faber (n = 86) obtained from artisanal fishermen in Rio de Janeiro, Brazil, were radiographed and assessed to detect the occurrence of hyperostosis across four different size classes. Of the examined individuals, 58.62% displayed signs of hyperostosis, which manifested in eight skeletal regions, notably in the supraoccipital crest, cleithrum and supraneural areas. In the vertebral column, hyperostosis was more frequently observed in haemal spines than in neural spines, predominantly between the sixth and eighth caudal vertebrae. The smallest size class (<200 mm total length) showed a low frequency of hyperostosis at 7.89%. This frequency escalated for larger classes, reaching 94.12% in individuals measuring 200-300 mm in total length and was observed in all individuals exceeding 300 mm. Hyperostosis exhibited an ontogenetic development pattern, where both the occurrence frequencies and the sizes of the affected bones expanded in proportion to the fish size. This is the first description of the hyperostosis pattern of development for the species, an important commercial resource.
具有商业价值的海洋硬骨鱼类经常被报道患有骨质增生症，这是一种导致骨骼增厚的骨学病症。从巴西里约热内卢的个体渔民那里获取了86条大西洋燕鱼（Chaetodipterus faber）的各种样本，对其进行了X光摄影并评估，以检测四个不同大小等级中骨质增生症的发生情况。在所检查的个体中，58.62%表现出骨质增生的迹象，其表现在八个骨骼区域，尤其在枕嵴、匙骨和神经上区域。在脊柱中，血棘比神经棘更频繁地观察到骨质增生，主要在第六至第八尾椎之间。最小的大小等级（全长<200毫米）骨质增生的频率较低，为7.89%。对于较大的等级，该频率上升，在全长200 - 300毫米的个体中达到94.12%，并且在所有超过300毫米的个体中都观察到。骨质增生表现出个体发育模式，其中受影响骨骼的发生频率和大小都与鱼的大小成比例扩大。这是对该重要商业资源物种骨质增生发育模式的首次描述。
