Page 26 - 240 introduction to fisheries and aquaculture tecnologies-azam
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Introduction to Fisheries and Aquaculture Technologies
14. Induced Breeding and Mass Seed Production of Gulsha (Mystus cavasius)
Ol. Contact division/person/unit Freshwater Station, Bangladesh Fisheries Research
Institute, Mymensingh.
02. Location of application Seasonal small ponds and ditches.
03. Key characteristics of the a. Faster growth rate, short cycled tasty fish.
technology b. Culturable in both seasonal and other shallow ponds.
c. Conservation & rehabilitation of the endangered fish.
04. Production guidelines a. May-August is the best time of induced breeding.
b. Stocking of brood fish @ 10,000-12,000/ha.
c. Supplementary feed @ 4 to 5% of body weight of fish
is essential 2 to 3 months prior to breeding.
d. Collection of matured brood fish and selection of
spawner on the basis of secondary sexual characters &
injection with recommended hormone dose.
e. Fertilization, hatching and rearing of spawn in the
indoor hatchery facilities.
05. Risk involvement and a. High mortality occurs due to improper management of
management in adopting the spawn in the indoor facilities.
technology b. Theft of brood fish.
06. Impact of environment Conservation of biodiversity.
07. Procedure of transfer Training/demonstrations.
08. Expected outcome a. Seed production can be ensured.
b. It helps in conservation of the endangered fish.
c. Increase fish production through aquaculture.
09. Recommendations a. Training of farm managers/hatchery owners.
b. Demonstration of technology.
c. Supply of brood fish should be ensured.
15. Fish Culture in Pen
01. Contact division/person/unit Riverine Station, Bangladesh Fisheries Research
Institute, Chandpur.
02. Location of application Inland open waters like FCD/FCDI project areas,
road-side canals, river, .low-lying flooded water
bodies, haors, baors.
03. Key characteristics of the a. Productive utilization of inland open waters, which
technology virtually remain unused for fish culture.
b. Possible to minimize multi ownership problems.
c. Low capital investment and minimum culture period
(6-7 months).
d. Increase fish production and opportunity for
employment creation.
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