Studies on Propagation and Culture of Bichirs Polypterus endlicheri endlicheri(Heckel,1847)

• Main Authors: Tsai, Ming Chan, 蔡明展
• Other Authors: Wen-Jiunn Shong,Ph.D.
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/80391025997291401189

碩士 === 國立嘉義大學 === 水生生物科學系研究所 === 101 === Bichirs Polypterus endlicheri endlicheri (Heckel,184), also known as tiger fish dinosaur fish characterized by cylindrical, body mainly brown, but it will change color with the environment, with a thick black vertical side ribbon 5-7, and has a divergent phenomenon. Approximate prominent jaw, fins Jieyou dark pattern, dorsal fin spines 11-14; Anal soft rays 14-18, the body length of up to 63 centimeters. Purpose of this study is to establish Bichirs Polypterus endlicheri endlicheri (Heckel, 1847) of artificial propagation and breeding technology, and provide relevant technology and industry as a reference for other ornamental fish breeding. The purpose of this study is to establish a multi-finned fish Engler artificial propagation and cultivation techniques of juvenile fish, ornamental fish market will increase the competitiveness of the natural environment also avoid unduly capture wild populations. Motivation Engler many finfish Status: In Taiwan belong to the high economic value of large ornamental fish and there are fish markets, demand in addition I saw Taiwan literature, and found that Taiwan has not been established for this fish breeding technology processes so reference Japanese studies scholars Engler many finfish aquaculture fan characteristics. Multi-purpose Set Engler Fan finfish farming system to regularly measure and record the growth of propagation and to explore different species of fish breeding breeding environment for the impact. And according to the above method to identify Engler multi fin fish artificial propagation and breeding of optimum process could be provided by reference to the ornamental fish industry, whereby the natural environment can be avoided by over-harvesting of wild populations. Engler last hope to establish a complete multi-fin fish farming. Broodstock was purchased from anecdotal aquarium, after a year of domestication, in August 2011 to late September, the natural environmental conditions in the artificial spawning. Design a variety of ways and collecting fertilized eggs methods and culture conditions keeper, breeding experiment observed spawning good results bare cylinder breeding and artificial fish nest mode fertilized eggs are collected, fertilized with weak adhesion, water temperature 24 -28 ℃ for about 48-53 hours of incubation, the egg diameter was 2.37 ± 0.11 mm, total length of larvae hatching 2.42 ± 0.20mm. The third day after hatching yolk absorption depleted. Juvenile fish length was 6.18 ± 0.45mm, the initial bait for the newly hatched Artemia nauplii, the first 14 days feeding flea, Daphnia 35 days can be fed with brine shrimp, the first 45 days can be fed with red silk worms insects, the first 60 days fed artificial bait. The average length of the first 210 days of juvenile 140.45 ± 9.69 mm, at this time the larvae of the body color and markings have been consistent with the adult fish. This paper, Bichirs Polypterus endlicheri endlicheri in an artificial environment of the reproductive behavior, breeding and other related issues, the establishment of Engler many finfish seed of artificial breeding technology, applied in the ornamental fish industry needs, and other multi-finfish apply this to establish breeding technology, research and observation of experimental results, full breeding technology research and development.