摘要
为探讨鲫鱼(Carassius auratus)和斑马鱼(Brachydanio rerio)视网膜组织结构与其生活环境的适应关系,对这2种鱼视网膜各层厚度、3个核层的胞核层数进行了测量,并对数据进行了统计分析。结果表明:鲫鱼和斑马鱼视网膜均由4层细胞构成,在光镜下共分为10层。鲫鱼视网膜平均厚度196.57μm,斑马鱼视网膜平均厚度167.57μm。斑马鱼的视网膜内核层的细胞数目比外核层多,而鲫鱼的视网膜外核层细胞数目多于内核层数目。鲫鱼和斑马鱼这2种鱼类视网膜结构的差异,与其各自的生活环境相适应。
The objective of this study is to explore the relationship between the retinal structure and its life adaptation to the environment of Carassius auratus and Brachydanio rerio. The retinal thickness of each layer, the three nuclear layers of the two animals were measured. The statistical data analysis shows that ： the nuclei layers of two animals are all 4 layers and the lens is 10 layers when observing with optical microscope. The retinal thickness of C. auratus is 196.57μm and the B. rerio is 167.57 μm. The cell count in retinal inner nuclear layers are more than in the outer nuclear layers of B. rerio, while the cell count in retinal outer nuclear layers are more than in the inner nuclear layers of C. auratus. The differ- ence structure of the lens in the two animals matches their respective living environment.
出处
《经济动物学报》
CAS
2012年第3期151-153,共3页
Journal of Economic Animal
关键词
鲫鱼
斑马鱼
视网膜
比较组织学
Carassius auratus
Brachydanio rerio
retina
comparative histology
