Profile holothuria scabra based reproductive cycle phases full moon and new moon phase

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Research Paper 01/02/2019
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Profile holothuria scabra based reproductive cycle phases full moon and new moon phase

Santi Penina Tua Rahantoknam, Domitila Ohoiulun, Jane Lulinda Dangeubun, Dominggas M. Kelabora
Int. J. Biosci.14( 2), 227-232, February 2019.
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Sea cucumbers are generally spawn in the waters around the neighborhood of his life. Many environmental factors affecting reproductive aspects such as the temperature of sea cucumbers, blooming phytoplankton and the cycles of the moon. Cycles of the moon is one of the environmental factors that can affect the reproductive cycle of sea cucumbers. This study aims to produce the reproductive cycle of H. scabra profile as the information in the management and sustainable utilization of H. scabra and sustainable. The study was conducted in Langgur Southeast Maluku, laboratory Hatchery and laboratory water quality, fisheries Polytechnic State Tual on January 29, 2017 until October 20, 2017. Observations reproductive cycle of H. scabra do macroscopically and microscopically. Take samples of sea cucumbers at every full moon phase (BP) and the new moon phase (BB) as many as 10 individuals. Observations gonad maturity level (TKG) and gonad maturity index (IKG) is based on phases of the moon. Determination TKG and IKG, done by sea cucumbers gonadnya dissected and observed in histology and IKG value calculation. Observation of physical characteristics and chemical biology is done in situ. H. scabra sea cucumbers have reproductive patterns asynchronously, allowing it to be able to spawn throughout the year, with peak spawning occurs in the month of May or the stage of BP (90%), and in March, BP phase spawning phase (5) of (70%) , Measurement of environmental parameters (physical-chemical water) during the observation showed physical-chemical parameters aquatic environment are at the optimum conditions for maintenance H. scabra, whereas plankton observations conducted every pengkuran environmental parameters.


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