
The effect of Melastoma malabathricum leaf extract on growth and spawning of blue swimming crab (Portunus pelagicus)
Author(s) -
Nur Alam,
Yushinta Fujaya,
Haryati Haryati,
Dwi Kesuma Sari,
Harun Achmad,
Muhammad Rusdi,
Nuril Farizah
Publication year - 2019
Publication title -
iop conference series earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/370/1/012029
Subject(s) - portunus pelagicus , hatchery , biology , fishery , body weight , zoology , botany , fish <actinopterygii> , crustacean , endocrinology
The aim of this study was to evaluate the effect of Melastoma malabathricum leaf extract on growth and spawning of the blue swimming crab Portunus pelagicus . This research was conducted from March to May 2019 at the Hasanuddin University mini hatchery in Barru Regency, South Sulawesi Province, Indonesia. The study used five treatment doses of M malabathricum leaf extract: 0, 5, 10, 15, and 20μg/g of female crab body weight. The extract was dissolved in water and an aliquot of 0.1 mL was injected into each crab. The results showed that there was a decrease in growth in all treatments within the first 10 days after injection, but an increase after the 20th day. Doses of 15 and 20 ug/g resulted in the highest spawning rate, ie 100% after 30 days. Crabs with no extract treatment had the lowest spawning rate, which was only 33%. The conclusion of this study is that an appropriate dose of M. malabathricum leaf extract can be used to stimulate spawning of Portunus pelagicus.
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