期刊
JOURNAL OF FISH DISEASES
卷 40, 期 8, 页码 987-1000出版社
WILEY
DOI: 10.1111/jfd.12575
关键词
larval quality; Senegalese sole (Solea senegalensis); skeletal anomalies; skeletogenesis; vertebrae
资金
- 'Conselleria de Economia e Industria' of Xunta de Galicia [10MMA020E]
- 'Programa de Consolidacion e Estructuracion de Unidades de Investigacion Competitivas GPC2015/034', Spain
- Spanish Ministry of Education
Senegalese sole (Solea senegalensis, Kaup) is a promising flatfish species in aquaculture. However, skeletal anomalies are still a great concern in sole farming. Investigation of this issue is crucial to improving larval quality and optimizing production. The aim of this study was to thoroughly assess anomalies in the rachis of reared sole at early developmental stages. Sole (n=507) were sampled at 31 or 32days after hatching (dah). The specimens were stained with alcian blue and alizarin red and evaluated for the detection of vertebral deformities. Most fish presented 9:34:3 vertebrae in abdominal, caudal and caudal complex regions, respectively. Remarkably, all specimens showed at least one spinal anomaly. Alterations of neural/haemal elements, as well as deformities of hypurals, parhypural and epural, were recurrent. Vertebral body anomalies and/or vertebral column deviations were identified in 52% of the individuals. Vertebral deformations and fusions were common, especially in caudal complex. Minor' anomalies were predominant, and some of the detected disorders might be a result of non-/low-pathological processes. These results contribute a new insight into the main skeletal anomalies affecting cultured sole larvae. Further research is required to determine their impact on fish welfare and external appearances at commercial stages.
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