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Broodstock development, breeding and larval rearing of Acanthopagrus berda (Forsskal, 1775), a suitable species for farming in tropical waters

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Relation http://eprints.cmfri.org.in/16300/
https://onlinelibrary.wiley.com/doi/full/10.1111/are.16114
https://doi.org/10.1111/are.16114
 
Title Broodstock development, breeding and larval rearing of
Acanthopagrus berda (Forsskal, 1775), a suitable species for
farming in tropical waters
 
Creator Suresh Babu, P P
Anuraj, A
Shilta, M T
Asokan, P K
Vinod, K
Dube, Praveen
Rao, K Narayana
Vaidya, N G
Sonali, S M
Pal, Mahendra
Loka, Jayasree
Santhosh, B
Jeena, N S
Imelda, Joseph
Ignatius, Boby
Gopalakrishnan, A
 
Subject Tropical fish
Fish breeding
Live Feed Culture
 
Description Standardization of seed production of the Picnic seabream, Acanthopagrus berda, was taken up in captivity. Broodstock development of A. berda was done in 6 m diameter galvanized iron cages during September 2020 to March 2021 using commercial feed (40% protein) supplemented with vitamins and minerals. Males with oozing milt were available consistently throughout the period while asynchronized maturation of female was observed. A pair of mature male and a female (oocyte diameter of 440 ± 12 μm) were induced using a dose of (0.25 ml kg−1) gonadotropin releasing hormone analogue and female was given a similar second dose after 6 h. Spawning occurred after 42 h of induction. Eggs were incubated in fibre glass tanks (100 L) in seawater (34 ppt) with gentle aeration. Number of eggs spawned was 0. 25 million with a fertilization rate of 88% and hatching rate of 80%. Planktonic larvae measured total length (TL) 1.7 ± 0.14 mm at 0 day post-hatch (dph), started exogenous feeding from 3 dph (TL 2.7 ± 0.48 mm) when the mouth size was 180 ± 2.8 μm. Yolk sac was completely exhausted by 3 dph. Co-feeding of rotifer Brachionus rotundiformis at 5 numbers (nos) ml−1 and nauplii of copepod (Parvocalanus crassirostris) at 3 nos ml−1 yielded better initial larval survival. Metamorphosis of the larvae started at 25 dph (TL12 ± 0.68 mm) and juveniles emerged from 35 dph (TL 22 ± 0.76 mm). This is the first holistic report about seed production of A. berda.
 
Publisher Wiley
 
Date 2022
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/16300/1/Aquaculture%20Research_2022_Suresh%20Babu%20P%20P.pdf
Suresh Babu, P P and Anuraj, A and Shilta, M T and Asokan, P K and Vinod, K and Dube, Praveen and Rao, K Narayana and Vaidya, N G and Sonali, S M and Pal, Mahendra and Loka, Jayasree and Santhosh, B and Jeena, N S and Imelda, Joseph and Ignatius, Boby and Gopalakrishnan, A (2022) Broodstock development, breeding and larval rearing of Acanthopagrus berda (Forsskal, 1775), a suitable species for farming in tropical waters. Aquaculture Research. pp. 1-15.