A novel technology towards the high-density and continuous production of the marine copepod, Pseudodiaptomus annandalei (Sewell, 1919)

Santhanam, P.; Marjuk, Mohammed Syed; Gunabal, S.; Sridhar, Pooja; Raju, P.; Ananth, S.; Nandakumar, R.; Kaviyarasan, M.; Devi, A. Shenbaga; Jeyanthi, S.; Divya, Meril; Krishnaveni, N.; Gowthami, Ayyasamy; Perumal, Pachiappan

doi:10.1007/s13399-023-04348-w

Biomass Conv. Bioref.

2023

DOI: 10.1007/s13399-023-04348-w

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A novel technology towards the high-density and continuous production of the marine copepod, Pseudodiaptomus annandalei (Sewell, 1919)

P. Santhanam

Mohammed Syed Marjuk

S. Gunabal

et al.

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2024

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Establishing an astaxanthin-rich live feed strain of Pseudodiaptomus annandalei

Chan,

Pan,

et al. 2024

Sci Rep

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This study aimed to establish an astaxanthin-rich strain of the calanoid copepod Pseudodiaptomus annandalei, through selective breeding based on RGB (red, green and blue) value, a parameter indicating color intensity. We evaluated the RGB value frequency distributions of the copepod populations, and selected individuals with the highest 10% and the lowest 10% RGB value over six generations. The RGB value, nauplii production, clutch interval and clutch number were assessed, and the genetic gain was calculated across generations (G0-G5). Two strains of copepods were selected and defined as dark body copepod strain (DBS) and light body copepod strain (LBS) at the end of experiment. Results revealed significantly lower RGB values (male: 121.5 ± 14.1; female: 108.8 ± 15) in the G5 DBS population compared to the G0 (male: 163.9 ± 13.1; female: 162.2 ± 14.6), with higher genetic gains of RGB values during G0 to G2. While DBS females exhibited longer clutch intervals in the G3 and G4, there was no significant difference in nauplii production between the two strains across all generations. Significantly higher astaxanthin content was found in the DBS copepods (0.04 μg/ ind.) compared to the LBS copepods (0.01 μg/ ind.) and the non-selective copepods (0.02 μg/ ind.) 20 months post selective breeding, validating the stability of the desired trait in the DBS strain. This study successfully established an astaxanthin-rich strain of P. annandalei, which provides implications for enhancing marine and brackish larviculture production.

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Establishing an astaxanthin-rich live feed strain of Pseudodiaptomus annandalei

Chan,

Pan,

et al. 2024

Sci Rep

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show abstract

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A novel technology towards the high-density and continuous production of the marine copepod, Pseudodiaptomus annandalei (Sewell, 1919)

Cited by 1 publication

References 44 publications

Establishing an astaxanthin-rich live feed strain of Pseudodiaptomus annandalei

Establishing an astaxanthin-rich live feed strain of Pseudodiaptomus annandalei

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