Siallagan, Ella Gresia and Dr. Ir. Umi Zakiyah,, M.Sc. (2021) Analisis Distribusi dan Jenis Kelimpahan Mikroplastik pada Air, Sedimen dan Ikan Kurisi (Nemipterus peronii) di Kawasan Ekowisata Pantai Blekok, Situbondo Jawa Timur. Sarjana thesis, Universitas Brawijaya.
Abstract
Perairan laut merupakan lingkungan yang berpotensi terkontaminasi mikroplastik karena beberapa sungai bermuara ke laut hal seperti ini juga mempengaruhi komunitas organisme di kawasan ekowisata pantai Blekok. Penelitian ini dilaksanakan pada bulan mei 2021 di kawasan Ekowisata Pantai Blekok, Desa Klatakan, Kecamatan Kendit, Kabupaten Situbondo, Jawa Timur dengan analisis dilakukan di Laboratorium Hidrobiologi Divisi Lingkungan dan Bioteknologi Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya. Tujuan penelitian untuk menganalisis jenis, distribusi dan kelimpahan mikroplastik pada air, sedimen di kawasan mangrove dan ikan kurisi (Nemipterus peronii) di kawasan ekowisata Pantai Blekok Situbondo Jawa Timur. Pengambilan sampel dilakukan pada 6 titik stasiun air, 4 titik stasiun sedimen di kawasan mangrove dan 10 ekor ikan kurisi (Nemipterus peronii) yang ditangkap dari perairan tersebut. Metode dalam penelitian ini adalah survei deskriptif dengan teknik pengambilan sampel secara purposive sampling. Parameter kualitas air yang diukur meliputi, kecepatan arus, kecerahan, suhu, pH dan oksigen terlarut. Kelimpahan mikroplastik di kawasan ekowisata Pantai Blekok terbanyak di sedimen, kemudian menurun di ikan dan paling sedikit di air. Secara morfologi mikroplastik terbanyak adalah Fragmen (50%) 0,47-4,07 partikel/liter, pelet (25%) 0,27-1,40 partikel/liter dan sisanya adalah fiber 0,07-0,87 partikel/liter dan film 0,13-0,87 partikel/liter. Tingginya fragmen diduga dari pemukiman yang dilalui oleh sungai yang telah menerima sampah dari daratan karena pecahan pertama dari plastik adalah fragmen. Mikroplastik dalam bentuk pellet (berbentuk cekung/cembung dan sedikit kasar) banyak dijumpai di perut ikan (mencapai 25%) bentuk ini diduga banyak dimangsa ikan, karena menyerupai larva ikan maupun zooplankton. Bentuk plastik fiber dan film ditemukan terendah di air (13%) maupun ikan (11%) diduga fiber dan film ini lebih sulit masuk di sedimen. Tingginya mikroplastik pada sedimen karena penumpukan sampah plastik dari laut, darat maupun muara sungai. Kondisi fisika kimia air pantai blekok saat penelitian adalah kecepatan arus 7,550-17,286 m/s Proses erosi yang membawa sedimen melalui arus air akan mengendap di kawasan mangrove termasuk mengendapkan plastik yang terbawa. kecerahan antara 25,50- 175,50 cm, suhu 30,1-33,1 oC, suhu dan radiasi matahari mempengaruhi laju degradasi plastik mengubah sifat polimer melalui pemotongan fraksi sehingga lebih kecil. pH dalam kisaran normal 6,8-8,7, Oksigen terlarut antara 7,1-9,0 mg/l. Disimpulkan bahwa mikroplastik di kawasan Ekowisata Pantai Blekok, Situbondo terbanyak ada di sedimen, perbandingan mikroplastik pada air, sedimen dan ikan kurisi (Nemipterus peronii) adalah 3:6:4. Diharapkan dari penelitian ini masyarakat dan pemerintah melakukan pengelolaan sampah plastik. Pemangku kepentingan sekitar Pantai Blekok dianjurkan dapat membersihkan sampah plastik di kawasan mangrove dengan gotong royong. Pemanfaatan ikan kurisi diharapkan tanpa menyertakan bagian perutnya, agar plastik tidak masuk ke rantai makanan berikutnya
English Abstract
Marine waters are an environment that has the potential to be contaminated with microplastics because some rivers empty into the sea. This also affects the community of organisms in the Blekok coastal ecotourism area. This research was carried out in May 2021 in the Ecotourism area of Blekok Beach, Klatakan Village, Kendit District, Situbondo Regency, East Java. The purpose of the study was to analyze the type, distribution and abundance of microplastics in water, sediment in the mangrove area and kurisi fish (Nemipterus peronii) in the ecotourism area of Blekok Beach, Situbondo, East Java. Sampling was carried out at 6 water stations, 4 sediment stations in the mangrove area and 10 kurisi fish (Nemipterus peronii) caught from these waters. The method in this study is a descriptive survey with a purposive sampling technique. Water quality parameters measured include current speed, brightness, temperature, pH and dissolved oxygen. The abundance of microplastics in the ecotourism area of Blekok Beach was highest in sediment, then decreased in fish and the least in water. Morphologically, the most microplastics are Fragments (50%) 0.47-4.07 particles/liter, pellets (25%) 0.27-1.40 particles/liter and the rest are 0.07-0.87 particles/liter fibers. and film 0.13-0.87 particles/liter. The height of the fragments is thought to be from settlements traversed by rivers that have received garbage from the mainland because the first fragments of plastic are fragments. Microplastics in the form of pellets (concave/convex and slightly rough) are commonly found in fish stomachs (up to 25%). This form is thought to be eaten by many fish, because it resembles fish larvae and zooplankton. The form of plastic fiber and film was found to be the lowest in water (13%) and fish (11%). The high level of microplastics in sediments is due to the accumulation of plastic waste from the sea, land and river mouths. The physicochemical condition of blekok beach water at the time of the study was the current velocity of 7,550-17,286 m/s. The erosion process that carries sediment through the water current will settle in the mangrove area, including depositing the carried plastic. brightness between 25.50-175.50 cm, temperature 30.1-33.1 oC, temperature and solar radiation affect the rate of plastic degradation, changing polymer properties through cutting fractions so that they are smaller. pH in the normal range 6.8-8.7, Dissolved oxygen between 7.1-9.0 mg/l. It was concluded that the most microplastics in the Ecotourism area of Blekok Beach, Situbondo were in sediments, the ratio of microplastics in water, sediment and curd fish (Nemipterus peronii) was 3:6:4. It is hoped that from this research the community and the government will manage plastic waste. Stakeholders around Blekok Beach are advised to clean up plastic waste in the mangrove area by working together. The use of kurisi fish is expected without including the stomach, so that plastic does not enter the next food chain
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0521080033 |
| Subjects: | 300 Social sciences > 333 Economics of land and energy > 333.9 Other natural resources > 333.95 Biological resources > 333.956 Fishes |
| Divisions: | Fakultas Perikanan dan Ilmu Kelautan > Manajemen Sumberdaya Perairan |
| Depositing User: | soegeng sugeng |
| Date Deposited: | 14 Jan 2022 06:11 |
| Last Modified: | 12 Dec 2023 01:56 |
| URI: | http://repository.ub.ac.id/id/eprint/188365 |
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