在顺化省潭江-曹海泻湖系统中Terapon jarbua (Forsskal, 1775)繁殖性能的研究

Lê Thị Như Phượng, N. Q. Linh
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引用次数: 1

摘要

从潭江-曹海泻湖系统中采集了斑竹,并对其繁殖性能进行了调查。在2015年9月至2016年8月期间,渔港内的海区及潭江-曹海泻湖系统内,水獭拖网渔船及不同渔具于每个月的特定日期共捕获了342个水獭。根据鱼耳、鳞、棘、鳃盖和棘的组成及卵巢组织模板确定年龄。用Bouins溶液固定后的性腺清洗、切割、染色,置于观察显微镜下。结果表明,在大约1+龄时,家兔的性别基本明确,并在1+龄时首次参与生殖过程。黄花寺蓬的数量和相对繁殖力高。Terapon jarbua的批量繁殖力从239,029到420,400个不等。相对繁殖力在每克鱼945 ~ 1013个卵之间波动,平均值为每克鱼981个卵。鱼类的产卵季节为每年3 - 5月。
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Study on Reproductive Performance of Terapon jarbua (Forsskal, 1775) in Tam Giang-Cau Hai Lagoon Systems, Thua Thien Hue Province
Terapon jarbua was collected from Tam Giang-Cau Hai lagoon systems and then their reproductive performances were investigated. Total 342 species were caught by otter trawlers and different fishing gears in marine and Tam Giang-Cau Hai lagoon systems on certain days of each month during period from September 2015 to August 2016 at fishing port. The determination of age was based on composition of the fish: ear, scaly, spine, gill cover and spine and the ovarian histology template. The gonads after being fixed with Bouins solution were cleansed, cut, dyed and put on the observation microscope. Results showed that the sex of Terapon jarbua was nearly clarified at the approximately 1+ age group and participated in reproduction process in the first time at the 1+ age group. The batch and relative fecundity of Terapon jarbua were high. The batch fecundity of Terapon jarbua varied from 239,029 to 420,400 eggs. The relative fecundity capacity fluctuated from 945 to 1,013 of eggs per gram of fish and the mean value by 981 eggs per gram of fish. The spawning season of fish occurred from March to May annually.
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