Modified Mangrove Pens for Polyculture System in Mud Crab (Scylla serrata)and Milkfish (Chanos chanos)Production

Laurence Almoguera; Vitaliana Malamug; Armando Jr. Espino; Marvin Cinense

doi:10.48017/dj.v9i1.2560

Authors

Laurence Almoguera Dr. Emilio B. Espinosa Sr., Memorial State College of Agriculture and Technology (DEBESMSCAT). Mandaon, Masbate, Philippines. https://orcid.org/0000-0003-2854-6235
Vitaliana Malamug Department of Agricultural and Biosystems Engineering, College of Engineering and Technology, Central Luzon State University, Science City of Munoz, Nueva Ecija, Philippines
Armando Jr. Espino Department of Agricultural and Biosystems Engineering, College of Engineering and Technology, Central Luzon State University, Science City of Munoz, Nueva Ecija, Philippines
Marvin Cinense Department of Agricultural and Biosystems Engineering, College of Engineering and Technology, Central Luzon State University, Science City of Munoz, Nueva Ecija, Philippines

DOI:

https://doi.org/10.48017/dj.v9i1.2560

Keywords:

Aquasilviculture, dissolved oxygen, mangroves, recovery

Abstract

The mangrove pens were modified to produce mud crab (Scylla serrata)and milkfish (Chanos chanos)in a polyculture system. The modification of mangrove pens was done by adding excavations inside the pen. The water quality parameters (dissolved oxygen (DO), pH, salinity, and temperature) were monitored, and the recovery and production rates in each penwere evaluated. The experiment was conducted for a rearing period of 143 days in nine mangrove pens, each having an area of 32 m2and an average net enclosure height of 3 m from the soil surface. The three different pens constructed (existing design: canal only, 43% excavation by area, and 54% excavation by area) were designated as T1, T2, and T3, respectively. The water quality parameters recorded in the pens were favorable for the growth and recovery of the mud crab and milkfish, except for DO. For mud crab, the highest mean recovery was recorded in T2, followed by T3,and the lowest in T1. The production rate followed the same pattern as the recovery, with T2having the highest, followed by T3, and T1having the lowest. The statistical analysis revealed that the variations in mud crab recovery were not significant, while in terms of production rate, modified mangrove pens were found to be more effective than the existing design. Due to the total mortality of the cultured milkfish, the current set-up of modified mangrove pens was found to be unsuitable for the polyculture system of milkfish and mud crab production.

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Author Biographies

Laurence Almoguera, Dr. Emilio B. Espinosa Sr., Memorial State College of Agriculture and Technology (DEBESMSCAT). Mandaon, Masbate, Philippines.

0000-0003-2854-6235; Dr. Emilio B. Espinosa Sr., Memorial State College of Agriculture and Technology (DEBESMSCAT). Mandaon, Masbate, Philippines. laurencealmoguera@gmail.com

Vitaliana Malamug, Department of Agricultural and Biosystems Engineering, College of Engineering and Technology, Central Luzon State University, Science City of Munoz, Nueva Ecija, Philippines

0000-0001-6839-8914; Department of Agricultural and Biosystems Engineering, College of Engineering and Technology, Central Luzon State University, Science City of Munoz, Nueva Ecija, Philippines. vumalamug120460@clsu.edu.ph

Armando Jr. Espino, Department of Agricultural and Biosystems Engineering, College of Engineering and Technology, Central Luzon State University, Science City of Munoz, Nueva Ecija, Philippines

0009-0004-9511-4656;; Department of Agricultural and Biosystems Engineering, College of Engineering and Technology, Central Luzon State University, Science City of Munoz, Nueva Ecija, Philippines. armandoespino513@gmail.com

Marvin Cinense, Department of Agricultural and Biosystems Engineering, College of Engineering and Technology, Central Luzon State University, Science City of Munoz, Nueva Ecija, Philippines

0000-0001-9464-690X; Department of Agricultural and Biosystems Engineering, College of Engineering and Technology, Central Luzon State University, Science City of Munoz, Nueva Ecija, Philippines. marvin_cinense@clsu.edu.ph

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