AQUA 2024

August 26 - 30, 2024

Copenhagen, Denmark

GROWTH PERFORMANCE OF JUVENILE SEA CUCUMBER Holothuria scabra IN EARTH PONDS: THE ROLE OF NURSERY SYSTEMS

 Lisa Fajar Indrianaa,b,c,d, *, Andreas Kunzmannb , Matthew James Slatera

a Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, 27515 Bremerhaven, Germany

b Leibniz Centre for Tropical Marine Research, 28359 Bremen, Germany

 c University of Bremen, 28359 Bremen, Germany

d National Research and Innovation Agency BRIN, 83352 Lombok, Indonesia

lisa.indriana@awi.de



 The sea cucumber Holothuria scabra is a highly valuable species  and is experiencing  declining in population due to over-exploitation, making aquaculture vital for its conservation and market supply.  Hatchery production challenges, including feeding, space, and cost, make indoor nursery culture less effective.  Transitioning juveniles to outdoor systems is required to optimize the hatchery-rearing phase. The objectives are to determine the impact of various nursery systems on the growth and survival of juvenile  H. scabra in earth ponds. The study was carried out in Lombok, Indonesia, and was conducted over 84 days in various settings within earthen ponds, utilizing a completely randomized design with five replicates . The four distinct treatment sites included a reservoir (N1), a stirred pond (N2), a non-stirred pond (N3) , and the main inlet sluice (N4). The results show that  N4 is the most effective method for promoting the  Growth Rate (0.083±0.011 g d-1) and Specific Growth Rate (2.360±0.145 % d-1) . O n the other hand, N1 had the highest survival rate, at 74.80±5.82%.