Growth and morphological development of larval and juvenileepinephelus bruneus (perciformes: Serranidae)
Growth and morphological development of larval and juvenileepinephelus bruneus (perciformes: Serranidae)
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文氏带鱼幼虫和幼鱼的生长和形态发育（鲈形目：鮈科）
DOI：
10.1007/bf02678510
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发表时间：
1999
影响因子：
1.2
通讯作者：
H. Kumai
中科院分区：
文献类型：
--
作者：
Yoshifumi Sawada;Keitaro Kato;Tokihiko Okada;Michio Kurata;Yoshio Mukai;S. Miyashita;O. Murata;H. Kumai
在室内饲养的条件下，研究了褐石斑鱼幼鱼的生长和形态发育。初孵仔鱼平均体长1.99mm，出膜后10 d平均体长3.96mm，20 d平均体长6.97mm，30 d平均体长12.8mm，40 d平均体长22.1mm，45 d平均体长24.7mm。初孵幼虫全身表皮有许多粘液细胞。在4 mm BL时，仔鱼已经形成了上鳍鱼类特有的色素模式，包括肠背部、第二背鳍和腹鳍棘的尖端以及尾腹面上的一簇黑色素细胞。第二背鳍棘和腹鳍棘上的棘突、前鳃盖角棘和眼上棘在大约6毫米BL时开始发育。6-8 mm BL幼虫的脊索尖端处于屈曲过程中，此时主要棘、色素和颌齿已开始出现。在10 mm BL时，鳍条数已达到成虫的数量。幼虫达到17毫米BL后，青少年的着色元素的形式或多或少密集的色素斑开始出现在身体上。鳞化开始于20 mm BL。主要的头棘已经消失或变得相对较小，并失去了20-25毫米BL的锯齿。
The growth and morphological development of larval and juvenileEpinephelus bruneuswere examined in a hatchery-reared series. Average body length (BL) of newly-hatched larvae was 1.99 mm, the larvae growing to an average of 3.96 mm by day 10, 6.97 mm by day 20, 12.8 mm by day 30, 22.1 mm by day 40 and 24.7 mm by day 45 after hatching. Newly-hatched larvae had many mucous cells in the entire body epidermis. By about 4 mm BL, the larvae had developed pigment patterns peculiar to epinepheline fishes, including melanophores on the dorsal part of the gut, on the tips of the second dorsal and pelvic fin spines, and in a cluster on the ventral surface of the tail. Spinelets on the second dorsal and pelvic fin spines, the preopercular angle spine and the supraocular spine, had started to develop by about 6 mm BL. The notochord tip was in the process of flexion in larvae of 6–8 mm BL, by which time major spines, pigments and jaw teeth had started to appear. Fin ray counts had attained the adult complement at 10 mm BL. After larvae reached 17 mm BL, elements of juvenile coloration in the form of more or less densely-pigmented patches started to appear on the body. Squamation started at 20 mm BL. Major head spines had disappeared or became relatively smaller and lost their serrations by 20–25 mm BL.