Author/Authors :
yona, defri brawijaya university - fisheries and marine sciences faculty - marine science department, marine resources exploration and management research group, East Java, Indonesia , nandaningtyas, zefanya brawijaya university - fisheries and marine sciences faculty - marine science department, East Java, Indonesia , siagian, bernads daniel marolop brawijaya university - fisheries and marine sciences faculty - marine science department, East Java, Indonesia , sari, syarifah hikmah julinda brawijaya university - fisheries and marine sciences faculty - marine science department, marine resources exploration and management research group, East Java, Indonesia , yunanto, agung institute for marine research and observation, Bali, Indonesia , iranawati, feni brawijaya university - fisheries and marine sciences faculty - marine science department, marine resources exploration and management research group, East Java, indonesia , fuad, mochamad arif zainul brawijaya university - fisheries and marine sciences faculty - marine science department, marine resources exploration and management research group, East Java, Indonesia , putri, junika chintia ayu brawijaya university - fisheries and marine sciences faculty - marine resources exploration and management research group, East Java, Indonesia , maharani, mela dita brawijaya university - fisheries and marine sciences faculty - marine resources exploration and management research group, East Java, Indonesia
Abstract :
Two methods of microplastics sampling in the Bali Strait, manta net (250 μm mesh size) and plankton net (20 μm mesh size), were compared. The difference in the mesh sizes could result in the difference of the microplastics found. Water samples from both sampling tools were analyzed with filtration and all organic materials were removed using Hydrogen Peroxide. Natrium chloride (NaCl) was used to further separate microplastics and organic materials based on its density. The result identified three types of microplastics found in Bali Strait: fibers, films and fragments with total abundances of microplastics were 32.48 x 10² particles.m^-3 and 16.33 x 10² particles.m^-3 using manta net and plankton net, respectively. These results indicated that the numbers of microplastics per cubic metres was higher using manta net sampling tool compared to plankton net. This may likely caused by the smaller size of the mesh used and also the sampling area covered using manta net.
Keywords :
microplastics , marine debris , manta net , plankton net , Bali Strait
