FOOD HABITS OF THE YELLOW RASBORA, Rasbora lateristriata, (FAMILY: CYPRINIDAE) BROODFISH DURING MOVING TO SPAWNING GROUND
Abstract: The purpose of this
research was to clarify the food habits of yellow rasbora (Rasbora
Iateristiata) when moving into spawning site during spawning season. Specimens
of yellow rasbora were collected between July and August, 2007 from spawning
site surveys during spawning season in their natural environment which run
yearly from April to August. There were 628 individual fi sh collected from
spawning ground, and 30 of them were selected to analyze the gut content.
Samples were preserved in alcohol solvent until identifi ed their gut content in
laboratory. The results showed that yellow rasbora broodfi sh fed plankton
continuously both in the day and night while moving into the spawning site.
Percent Index of Relative Importance values indicated the most important prey
items of yellow rasbora were phytoplankton (68.43%), and then zooplankton
(29.79%), leaf cut (0.02%), little caterpillar (0.01%), insect larva (0.15%),
and unidentifi ed items (1.60%), respectively. Chrysophyta and protozoa was
found the most dominant of phytoplankton and zooplankton in the gut content,
respectively. Based to the ratio between gut length and total length, and the
feeding mode, R. lareritriata is categorized to an omnivorous feeder.
Author: Djumanto and F.
Setyawan
Journal Code: jpperikanangg100003
Artikel Terkait :
Jp Perikanan gg 2010
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