Early Development of Squamation in Relation to Color Anomalies in Hatchery-reared Flounder, Paralichthys olivaceus
Early Development of Squamation in Relation to Color Anomalies in Hatchery-reared Flounder, Paralichthys olivaceus
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孵化场饲养的牙鲆早期鳞状发育与颜色异常的关系
DOI：
10.11369/jji1950.27.249
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发表时间：
1980
期刊：
影响因子：
--
通讯作者：
T. Seikai
中科院分区：
文献类型：
--
作者：
T. Seikai
褐牙鲆在人工孵化的幼鱼中经常出现颜色异常现象。这些异常通常伴随着其他外部性状的畸变，如对比目鱼自然种群所描述的那样。正常着色个体眼侧的鳞化开始于沿着侧线后半部全长20.2 mm处，在54.0 mm处完成，异常着色个体眼侧和盲侧的鳞化开始于TL的22.1 mm处，虽然正常鱼和异常鱼的鳞化开始于身体的同一部位，但正常鱼两侧的鳞化发育比异常鱼快。在正常的鱼大于50毫米的TL，规模更大，有更多的棘和脊比彩色的个人。
Color anomalies occur frequently in hatchery-reared young of the flouder Paralichthys olivaceus. The anomalies usually accompany aberrations in other external characters as described for natural populations of flatfishes. In normally colored individuals, the squamation on the ocular side started along the posteror half of the lateral line at 20.2 mm in total length and was complete at 54.0 mm.Squamation in individuals with anomalous coloration started on both ocular and blind sides at 22.1 mm in TL, and was completed at 51.8 mm. Though squamation started at the same part of the body in both normal and anomalous fish, development of squamation on both sides was more rapid in normal individuals than in anomalous ones. In normal fish greater than 50 mm in TL, scales were larger and had more spines and ridges than in anomalously colored individuals.