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Title: Spawning behaviour, early development and first feeding of the bluestriped angelfish [Chaetodontoplus septentrionalis (Temminck & Schlegel, 1844)] in captivity
Authors: Ming-Yih Leu;Pei-Jie Meng;Chao-Sheng Huang;Kwee Siong Tew;Jimmy Kuo;Chyng-Hwa Liou
Contributors: 國立臺灣海洋大學:水產養殖學系
Keywords: spawning behaviour;larval development;first feeding;bluestriped angelfish;Chaetodontoplus septentrionalis
Date: 2010-08
Issue Date: 2011-10-21T02:18:41Z
Publisher: Aquaculture Research
Abstract: Abstract:Successful natural spawning of Chaetodontoplus septentrionalis in captivity from 19 March to 11 May, 2008 is described for the first time. A single male dominates a harem of two females, spawning with each at dusk, from 10 min before to 20 min after sunset. Each female laid an average 119 × 103 eggs during the spawning period. Fertilized eggs were spherical, buoyant and had a diameter of 0.83 ± 0.02 mm (mean ± SD). Embryonic development lasted 15–18 h at 28.1 °C. Newly hatched larvae were 1.60 ± 0.07 mm in total length (TL) with 27 myomeres. Larvae completed yolk absorption within 3 days post hatching (ph) at 3.01 ± 0.08 mm TL. Ten days ph, the larvae had attained 3.95 ± 0.12 mm TL. Larvae were fed either 100% s-type rotifers (Brachionus rotundiformis), 100% copepods (Microsetella sp.), a combination of the two (50%:50%) or without live feed (starved control) to determine the effect of live feed on the survival rate. The survival was significantly (P<0.001) higher in larvae fed a combination of diet than the others. These results indicate that C. septentrionalis is a potential species for captive breeding programs and the use of a combination of diet (s-type rotifers and copepods) may be a suitable first food for the larvae.
Relation: 41(9), pp.e39-e52
URI: http://ntour.ntou.edu.tw/handle/987654321/26791
Appears in Collections:[水產養殖學系] 期刊論文

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