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首页> 外文期刊>日本水産学会誌 >The development of visual acuity in yellowtail Seriola quinqueradiata [Japanese]
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The development of visual acuity in yellowtail Seriola quinqueradiata [Japanese]

机译:黄尾籽粒喹硫氨酸中视力的发展[日文]

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The development of visual acuity in yellowtail were investigated by histological examination of the retina for 43 individuals (BL 15-392 mm). The lens diameter increased from 0.5 mm to 7.1 mm proportionally with the growth of body length. The cone density was found to fit in an exponentially declining curve, where it steeply decreases in the range of 15-73 mm BL and becomes a gentle slope to be around 650-304 cells/0.01 mm(2) for samples over 179 mm BL. According to the results, the visual acuity was increased with growth; from 0.04 for 15 nun BL to 0.23 for 390 mm BL specimen. The improvement of acuity can be attributed to the increase of the lens diameter rather than the effect of the cone density. The visual acuity (VA.) was shown to fit to the allometric function of the body length (BL) as follows,
机译:通过Retina的组织学检查来研究黄土中的视力的显影,43个体(BL 15-392mm)。 透镜直径从体长的生长成比例增加0.5毫米至7.1毫米。 发现锥形密度适合于指数下降的曲线,其中在15-73mm Bl的范围内陡峭地降低,并且变得温和的斜率为约650-304个细胞/ 0.01mm(2),用于超过179 mm的样品 。 根据结果,视力随着生长而增加; 对于390 mm BL标本,从0.04到0.23到0.23。 敏锐度的改善可以归因于透镜直径的增加而不是锥密度的效果。 视敏度(Va。)被示出为适合体长(BL)的各种功能,如下所述,

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