| 王晶,高磊,鲍宝龙.2017.牙鲆、大黄鱼和小黄鱼不同部位鳞片类型的比较.动物学杂志,52(5):850-856. |
| 牙鲆、大黄鱼和小黄鱼不同部位鳞片类型的比较 |
| Comparative Analysis on Scale Types from Different Body Part in Flounder, Large Yellow Croaker and Small Yellow Croaker |
| 投稿时间：2016-09-09 修订日期：2017-08-28 |
| DOI：10.13859/j.cjz.201705014 |
| 中文关键词: 圆鳞 栉鳞 牙鲆 大黄鱼 小黄鱼 |
| 英文关键词:Cycloid scale Ctenoid scale Paralichthys olivaceus Larimichthys crocea Pseudosciaena polyactis |
| 基金项目:国家自然科学基金项目（No. 31472262） |
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| 摘要点击次数: 1912 |
| 全文下载次数: 1948 |
| 中文摘要: |
| 真骨鱼类的骨鳞有圆鳞和栉鳞两种类型，观察了大黄鱼（Larimichthys crocea）和小黄鱼（Pseudosciaena polyactis）成体的鳞片类型，发现同一个体同时存在圆鳞和栉鳞，有典型的圆鳞和栉鳞结构，也有两者的过渡型形态。而对100日龄和成体牙鲆（Paralichthys olivaceus）不同部位鳞片类型的观察发现，100日龄牙鲆眼侧存在圆鳞向栉鳞过渡的Ⅲ型鳞片、Ⅳ型初始栉鳞和Ⅴ型典型栉鳞，而成体牙鲆有眼侧仅覆盖Ⅴ型典型栉鳞，推测栉鳞和圆鳞可能存在发育上的联系。通过统计大黄鱼和小黄鱼不同部位的圆鳞和栉鳞数量，发现二者体表栉鳞数量均为从头部到尾部依次减少，而背部与腹部之间没有明显差异。 |
| 英文摘要: |
| In order to understand the developmental relationship between the cycloid scale and ctenoid scale in teleosts, the distribution of the two types of scales in Flounder (Paralichthys olivaceus), Large Yellow Croaker (Larimichthys crocea) and Small Yellow Croaker (Pseudosciaena polyactis) were investigated (Fig. 1). By comparing with the different morphological structures in different scales stained with alizarin red, we found not only cycloid scale and ctenoid scale with typical structures, but also scales with transitional morphological features between typical cycloid scale and ctenoid scale in one fish body of flounder, large yellow croaker and small yellow croaker, that indicated the typical ctenoid scale might be developed from the cycloid scale (Fig. 2). The different types of scales in the same body section were found in the flounder at 100 days after hatching and adults, which provided the further indication for the developmental relationship between the cycloid scale and ctenoid scale (Fig. 2). We further investigated the numbers of cycloid scales and ctenoid scales in different body parts in both L. crocea and P. polyactis, and found out no significant difference of the numbers of cycloid scales or ctenoid scales between left and right body sides (Table 1, 2). We also did not found any difference between the scale number in dorsal area, lateral line area and abdomen area. However, the significant difference in number was found in the different body areas along anterior to posterior axis in both L. crocea and P. polyactis (Table 1, 2). The number of cycloid scales decreased gradually from the head to tail, on the contrary, the number of ctenoid scales increased gradually from anterior to posterior (Fig. 3, 4). More ctenoid scales distributed in the body rear in the two species of croakers, indicating the croaker might use ctenoid scales as generator vortex to improve swimming efficiency. |
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