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Gut Content Analysis of Siganus canaliculatus (Danggit)

Author

Listed:
  • Renelee M. Subsuban

    (College Professor of Math and Science Department, University of Mindanao, Davao City)

  • Aileen S. Espra

    (Faculty of Department of Environmental Science, School of Interdisciplinary Studies, MSU-IIT, Iligan City)

  • Krystel Joyce S. Alido

    (Student-Researchers, BS Biology Program at the University of Mindanao, Matina, Davao City)

  • Jeza E. Cuizon

    (Student-Researchers, BS Biology Program at the University of Mindanao, Matina, Davao City)

  • Alejandro R. Dejan, Jr.

    (Student-Researchers, BS Biology Program at the University of Mindanao, Matina, Davao City)

Abstract

The study aims to identify the gut content of Siganus canaliculatus (Danggit) found in a mangrove forest at Brgy. Tagabuli, Sta. Cruz, Davao del Sur. Sampling was done in two sampling stations namely: Area 1 (mangrove area) and Area 2 (aquaculture area). Results showed that percentage composition of prey items in Area 1 are composed of algae (78%), plankton (13%) and detritus (9%), while Area 2 is composed mostly of detritus (62%), algae (30%), planktons (7%) and others such as stone sediments, small shell crustacean and nylon fragments (1%). Proximate composition of Siganus canaliculatus flesh in Area 1 has Crude fat (11%), Crude protein (48%) and Ash (6%) while Area 2 has Crude fat (10%), Crude protein (51%) and Ash (28%). Siganus canaliculatus gathered in mangrove and aquaculture area consumed similar prey items like Melosira spp. (Diatoms), Meridion spp. (Diatoms), Nitzschia spp. (Diatoms), Ascartia spp. (Copepod) and Dreissena spp. (Zooplankton). Based on gut content analysis of Siganus canaliculatus, it is herbivorous. Hence, algae as the primary prey item of Siganus canaliculatus should be conserved, and harvesting of commercially important fishes should be monitored.

Suggested Citation

  • Renelee M. Subsuban & Aileen S. Espra & Krystel Joyce S. Alido & Jeza E. Cuizon & Alejandro R. Dejan, Jr., 2025. "Gut Content Analysis of Siganus canaliculatus (Danggit)," International Journal of Research and Innovation in Applied Science, International Journal of Research and Innovation in Applied Science (IJRIAS), vol. 10(10), pages 1663-1678, October.
    • Handle: RePEc:bjf:journl:v:10:y:2025:i:10:p:1663-1678
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    References listed on IDEAS

    as
    1. Rosamond L. Naylor & Rebecca J. Goldburg & Jurgenne H. Primavera & Nils Kautsky & Malcolm C. M. Beveridge & Jason Clay & Carl Folke & Jane Lubchenco & Harold Mooney & Max Troell, 2000. "Effect of aquaculture on world fish supplies," Nature, Nature, vol. 405(6790), pages 1017-1024, June.
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