Pioneering breeding strategies and behavioural studies in Iban Fighting Fish (Betta ibanorum) preceding induced methods

Rajandran, Yuwaneswaran (2024) Pioneering breeding strategies and behavioural studies in Iban Fighting Fish (Betta ibanorum) preceding induced methods. [Project Paper] (Submitted)

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Abstract

Betta ibanorum, also known as Iban fighting fish is a species of gourami endemic to southern Sarawak in Malaysia. The species name ibanorum was named after the Iban people, the largest group of people in the Sarawak. This species is a mouthbrooder, and grows to a length of 8.1 centimetres (3.2 inches). The lack of documented information on breeding strategies and behavioural studies makes it difficult for further studies. Therefore, this study investigated the breeding strategies and behavioural studies of B. ibanorum under laboratory conditions. Four pair of B. ibanorum were been injected using different types of hormones for gametes development for each trial. Observations on the embryonic development of Betta ibanorum was microscopically monitored and recorded. The broodstocks does produce plenty of eggs and less sperm for certain hormones. The behaviour of B. ibanorum were recorded such as the genital papilla and factors affecting embryogenesis and early development such as water temperature, water quality, and parental behaviour. However, there was fertilization failure and lack of progress in embryonic development for Betta ibanorum in captured environment. This study on breeding strategies and behavioural studies using induced methods in B.ibanorum has bridged a gap in the knowledge of developing eggs and morphology of the species in Malaysia. Although the attempted embryogenesis of B.ibanorum, the species of betta in East Malaysia; mostly found in Sarawak province has failed, further experimentation should be conducted to address the intrinsic and extrinsic variables that are known to impede embryogenesis experiments to optimise the process.

Item Type:	Project Paper
Subjects:	S Agriculture > SH Aquaculture. Fisheries. Angling
Faculty:	Faculty of Agriculture and Forestry Sciences
Depositing User:	Mr. Azman Mohamad
Date Deposited:	08 Dec 2025 08:25
Last Modified:	08 Dec 2025 08:25
URI:	http://psaspb.upm.edu.my/id/eprint/2547

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