Food Preference of Shortfin Scad (Decapterus macrosoma) at the Southern Waters of Gunungkidul Yogyakarta, Indonesia
Jurnal Ilmiah Perikanan dan Kelautan, ISSN: 2528-0759, Vol: 11, Issue: 2, Page: 19-28
2019
- 4Citations
- 35Captures
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Article Description
The food habit is one of the important information used in the fisheries resource management. This study aimed to determine food preferences, index of preponderance, and trophic level of shortfin scad (D. macrosoma) captured from the southern waters of Gunungkidul Yogyakarta, Indonesia. A total of 325 fish samples were collected from March to September 2018. Each fish sample was measured in total length, body weight, determined its sex, and then dissected. The digestive tract was measured in total length then the gut contents were preserved in 5% formaldehyde to observe the type of food composition. The results showed that shortfin scad was carnivorous fish (relative gut length = 0.47) with the diet composing of fish (84.15%), phytoplankton (8.91%), zooplankton (4.47%), and snipping shrimp (3.19%). The molecular identification showed that the main fish species eaten by shortfin scad was Cololabis saira (Scomberesocoidae).
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