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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Author(s)
Le Thi Nhu Phuong1 and Nguyen Quang Linh2
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DOI:10.17265/2161-6256/2017.10.012S
Affiliation(s)
1. Ha Long University, Uong Bi City 200000, Quang Ninh Province, Vietnam
2. Institute of Biotechnology, Hue University, Phu Thuong, Phu Vang, Thua Thien Hue 530000, Vietnam
ABSTRACT
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.
KEYWORDS
Terapon jarbua, reproductive biology, Thua Thien Hue.
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