EMBRYONIC DEVELOPMENTAL STAGES OF IKAN PALMAS (Polipterus senegalus senegalus)
Abstract: The purpose of these
observations was to identify the stages of the embryo development of ikan
palmas (Polypterus senegalus senegalus) and determine the length of duration of
each stage. Broodstocks were cultured in aquaria 6 cm x 72 cm x 50 cm in size. The
broodstock were stocked at ratio of 1:1 and fed ad libitum with earthworm,
small feed fish (ting sea fish) and golden snail. The Palmas broodstocks here
naturally spawned in artificial nests made of split plastic raffia in
resembling the aquatic plant found in the natural habitat of ikan palmas. After
21 days of culture period, the broodstock began to lay eggs in gradually for 20
days. The average diameter of the eggs was 25 μm. The embryo developed in 24
hours after fertilization and hatched out three days after the embryo had
developed.
Keywords: embryo development;
Polypterus senegalus senegalus; stage of development
Author: I Wayan Subamia, Media
Fitri Isma Nugraha, Slamet Sugito
Journal Code: jpperikanangg080012
