圈养条件下彩虹黑鱼的诱导繁殖(Channa bleheri Vierke, 1991)

Q3 Environmental Science
Nipen Nayak
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引用次数: 1

摘要

1991年,Channa bleheri Vierke是一种特有的蛇头鱼,局限于印度阿萨姆邦雅鲁藏布江流域的Dibrugarh和Tinsukia地区以及印控"阿鲁纳恰尔邦"的Dikrong河。水族馆贸易中通过野生渔获物的广泛开发导致该物种的种群动态呈下降趋势,导致其在国际自然保护联盟濒危物种红色名录(第3.1版)中被归类为近危物种。本次调查是为了圈养6月和7月在密闭条件下饲养的物种,2019年,阿萨姆邦迪布鲁加尔大学。通过静脉注射从0.1 mL.kg-1体重开始连续增加激素剂量(Ovasis),尽管产卵的剂量分别为0.5、0.6和0.7 mL/kg-1体重。结果表明,不同激素剂量的潜伏期、受精率和孵化率分别为22-32小时、53-81%和65-85%。对育种试验期间的非生物因素进行了监测和记录。目前的调查强调了人工饲养的白盖菇人工繁殖的可能性,这将对该物种的管理和保护至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Induced Breeding of Rainbow Snakehead (Channa bleheri Vierke, 1991) Under Captive Condition
Channa bleheri Vierke, 1991 is an endemic snakehead fish confined to certain pockets of Dibrugarh and Tinsukia districts of Brahmaputra basin of Assam and Dikrong River of Arunachal Pradesh, India. Extensive exploitation in aquarium trade through wild catches has resulted in a declining trend in population dynamics of the species, leading to its categorisation in Near Threatened category in the IUCN Red List of Threatened Species (ver. 3.1). The present investigation was conducted to captive breed the species reared under confined condition during June and July, 2019 in Dibrugarh University premises, Assam. A successive increase of hormone dosage (Ovasis) from 0.1 mL.kg -1 body weight was injected intravenously, albeit spawning was experiential with dosage of 0.5, 0.6 and 0.7 mL.kg -1 body weight. Results indicated that the latency period, fertilisation rate and hatching rate with different hormonal dosages varied from 22–32 h, 53–81 % and 65–85 %, respectively. The abiotic factors during breeding trials were monitored and documented. The present investigation highlights the possibility of captive breeding of C. bleheri reared under captivity, which will be pivotal in management and conservation of the species.
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来源期刊
Asian Fisheries Science
Asian Fisheries Science Agricultural and Biological Sciences-Food Science
CiteScore
2.20
自引率
0.00%
发文量
23
期刊介绍: The Asian Fisheries Science (AFS) was first published in 1987. It is an open access SCOPUS indexed publication of the Asian Fisheries Society. Four regular issues are published annually in March, June, September and December. In addition, special issues are published on specific topics. Full texts of the articles are available for free download and there is no publication fee. The journal promotes fisheries science which has an international appeal with special focus on Asian interests.
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