In this issue

Antibacterial Potential of Gracilaria edulis Extracts Against Pathogenic Bacteria: Input to Organic Aquaculture
Identification of Plankton in the Stomach of Milkfish (Chanos chanos) Seeds Obtained from Natural Waters
First Record of Hermaphroditism in Green Mussels (Perna viridis) in the Philippines
The Post-Harvest Handling Practices of Glass Eel in Aparri, Cagayan: Operations, Challenges and Recommendations
Dietary Vitamin C and Lipid Feed Supplementations Influence the Expression of Immune-Related Genes in Litopenaeus vannamei (Boone 1931) Subjected to Thermal Stress
Gender Participation in the Capture and Marketing Sectors of the Glass Eel Fisheries in Aparri, Cagayan, Philippines
Status of Nematopalaemon tenuipes, Spider Prawn (Family: Palaemonidae) Stocks Caught in Aparri, Cagayan: A case of Gentleman’s Agreement Management Strategy
Environmental Change and Trends in Brackishwater Pond Milkfish Chanos chanos Production in the Philippines Over Six Decades: Insights to Possible Resiliency
Coral Reef Habitat and Associated Reef Fishes in the Kalayaan Island Group, West Philippine Sea
Catches and the Production of the Sea Cucumber Fishery of Mindanao, Philippines
Ichthyofauna of the Rasian and Asahan Rivers in the South Coast of Aceh Province, Indonesia
Determinants of Food Insecurity among Municipal Fishing Households during the COVID-19 Pandemic under Alert Level 1 in Kawit, Cavite, Philippines
Cell Viability and Coelomocyte Characterization of Crown-of-Thorns Starfish (Acanthaster planci L.) Collected from Southern Leyte, Philippines
Farming Systems of Eucheumatoid Seaweeds in Western Visayas, Philippines
Climate and Non-climate Related Hazards in Small Pelagic Fisheries and Milkfish Aquaculture: Expert Opinion Survey in the Philippines
Identification and Allometric Scaling of Megamouth Shark (Megachasma pelagios) Mother-Offspring Specimens from Dipaculao, Aurora, Luzon Island, Philippines
The Catch and Trade of Seahorses in the Philippines Post-CITES (2019)

Journal Issue Volume 32 Issue 1 Identification of Plankton in the Stomach of Milkfish (Chanos chanos)...

Short Communication

Identification of Plankton in the Stomach of Milkfish (Chanos chanos) Seeds Obtained from Natural Waters

, Tri Yusufi Mardiana, Linayati Linayati, M. Bahrus Syakirin, Benny Diah Madusari

Department of Aquaculture, Faculty of Fisheries, University of Pekalongan, Pekalongan City, Indonesia

Page 9-18 | Received May 7, 2023, Accepted March 18, 2025

Abstract

Milkfish larvae (Chanos chanos) are an omnivorous species. Consequently, this study aimed to identify the types of plankton found in the stomachs of milkfish larvae and to determine suitable natural feed. The research was carried out in the coastal area of Slamaran, Pekalongan City, using three sampling sites with different substrate structures. The main data collected included the diversity of plankton species in the stomachs of milkfish larvae and the plankton present in their natural habitat. The results showed that various plankton genera, such as Tintinnopsis sp., Peridinium sp., Coscinodiscus sp., Brachionus sp., Chlorella sp., Cryptomonas sp., Skeletonema sp., Navicula sp., and Rhizosolenia sp., were in the stomachs of the milkfish seeds. In the natural waters, several plankton genera were identified, including Nitzchia sp., Amphora sp., Cyclotella sp., Chlamydomonas sp., Microcystis sp., Alexandrium sp., Tintinnopsis sp., Oocystis sp., Skeletonema sp., Brachionus sp., Coscinodiscus sp., and Peridinium sp. The water quality parameters were relatively stable across the three sampling locations. The types of plankton in the stomachs of milkfish seeds caught from natural waters included green algae, blue-green algae, diatoms, dinoflagellates, and several zooplankton species. Some of the plankton genera in the milkfish seeds' stomachs had similarities with the plankton genera present in the waters where the seeds were caught, specifically Peridinium sp., Coscinodiscus sp., Brachionus sp., Skeletonema sp., Tintinnopsis sp., and Microcystis sp. This finding was in line with the known omnivorous nature of milkfish, which targeted several phytoplankton species as part of their feeding behavior.


Keywords: plankton, seeds, coastal, feeding, milkfish