The presence of microplastics in the digestive tract of commercial fishes off Pantai Indah Kapuk coast, Jakarta, Indonesia

Abstract

Abstract. Hastuti AR, Lumbanbatu DTF, Wardiatno Y. 2019. The presence of microplastics in the digestive tract of commercial fishes off Pantai Indah Kapuk coast, Jakarta, Indonesia. Biodiversitas 20: 1233-1242. Microplastics in fishes have been reported in many studies due to their threat to marine fishes and human health. But only a few data exist on commercial fish for human consumption in Indonesia. This study revealed the presence of microplastics in the digestive tract of 9 commercial species collected from six sites along the Pantai Indah Kapuk coast. Ingested microplastics were identified using gut content analysis. Microplastic particles were counted and categorized by type, color, and size. 169 of 174 (97.13%) of examined fish had microplastics. A total of 2063 microplastic particles were collected with the average number of particles per individual of 12.21 ± 9.76. The highest number (20.0 ± 8.0 particles individual-1) was found in Sardinella fimbriata and the lowest one (4.9 ± 4.7 particles individual-1) was found in Oreochromis mossambicus. Majority of ingested particles were fibers (89.63%), followed by fragments (6.24%), films (4.13%) and no pellets were observed. In terms of color, the most abundant were transparent particles (79.20%), followed by blue (7.03%), red (3.54%), black (2.86%), green (2.71%), and others which were found in low number. The highest number of fibers by size was <20-100 µm (55.03%), films were 100 - 1000 µm (33.93%), and fragments were <100 µm (25.25%). Microplastics ingested per individual in each species were not correlated to total body length, total body weight, digestive tract length, digestive content weight, mouth height, and mouth length.

Sublethal toxicity test of mercury (Hg) in the flesh and tissue of Tilapia (<i>Oreochromis niloticus</i>)

“…In general, the vital organs that showed the greatest accumulation are the liver, kidney, and gill. However, previous researchers have also shown that the digestive tract is a part of the body of the fish with accumulation it provides pathway for the uptake and entry into the fish body (Giguere et al, 2004;Hastuti et al, 2019). While Yamazaki et al (1996) found that swimming bubbles and kidney accumulated various types of heavy metals.…”

Mapping Analysis Distribution of Microplascticat the Tallo River in Macassart

“…A similar study was also conducted by Karthik, et.al. (2018), that among all classes, the MP size of microplastics between 1.18 and 2.36 mm shows the highest microplastic abundance in sediments in Indian waters 2,4,15 .…”

“…In 2019, plastic contributed 60% -80% of waste in the sea and is a threat to the ecosystem. Plastics that are degraded to MP <5 mm in size known as microplastics can accumulate in sediments and are consumed by marine organisms 2,3,4 .…”

Sampah Plastik di Perairan Pesisir dan Laut : Implikasi Kepada Ekosistem Pesisir Dki Jakarta

“…Kawasan Pesisisr DKI Jakarta saat ini selain mengalami tekanan lingkungan akibat akumulasi limbah baik limbah industri, limbah domestik, dan limbah lainnya yang bersumber dari darat dan laut juga mengalami tekanan akibat pencemaran sampah plastik. Menurut Hastuti (2014) . Arus monsun ini bergerak dari barat menuju ke timur pada periode bulan Desember hingga Februari, dan bergerak sebaliknya dari timur ke arah barat saat angina musim timur pada periode Juni hingga Agustus (Siregar et al, 2017).…”