scholarly journals Identification of Floating Marine Debris in The Banda Aceh Estuary

Jurnal Segara ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 75
Author(s):  
Koko Ondara ◽  
Ruzana Dhiauddin

The coastal area of Banda Aceh City have the potential to be polluted by waste from the mainland as much as 45.41 tons/day. One source of land waste is the Krueng Aceh river, the river has dense residential areas and high community activities such as ports, ship repairs, traditional markets, recreation and fishing activities. This study aims to identify floating debris in the Krueng Aceh estuary. Data collection was carried out at the mouth of the river using a debris trap mounted on the ship that moves periodically and the research time was based on tidal charts. The results showed that type of marine debris found is plastic, cloth, processed wood, rubber and metal. Plastic debris is the most common debris found by 89 % on the surface of the Krueng Aceh estuary at spring tide and neap tide. The highest amount of debris is found in the morning 09.50 AM and 03.32 PM in the evening.

2021 ◽  
Vol 869 (1) ◽  
pp. 012052
Author(s):  
S Purnawan ◽  
K Ondara

Abstract Banda Aceh is a city at the western tip of Indonesia and is one of the provinces that has a coastal area that can contribute plastic waste to the sea. The source of plastic waste comes from land and human activities which are then carried through river mouths to end up in the sea. The purpose of this study was to determine the characteristics of marine debris at the mouth of the Krueng Aceh River. Data collection is determined based on the time of the tide. The research was carried out using a boat mounted with a marine debris trap. The results showed that plastic waste dominated the mouth of the river by 90 percent, both during high and low tide conditions. There is a difference in the amount of waste that accumulates at high and low tide in the Krueng Aceh estuary.


2020 ◽  
Vol 5 (2) ◽  
pp. 273-289
Author(s):  
Yar Johan ◽  
Person Pesona Renta ◽  
Ali Muqsit ◽  
Dewi Purnama ◽  
Leni Maryani ◽  
...  

Sampah laut (marine debris) adalah bahan sisa-sisa produk yang ditinggalkan atau dibuang ke laut oleh manusia baik dengan sengaja maupun tidak sengaja ditinggalkan di dalam lingkungan laut. Penelitian Sampah laut (marine debris) di Pantai Kualo Kota Bengkulu diharapkan dapat memberikan informasi dan data kepada mahasiswa, peneliti, pemerintah dan masyarakat umum sebagai informasi ilmiah awal tentang jenis dan bobot serta laju pertambahan sampah laut (marine debris) yang tersebar di Pantai Kualo Kota Bengkulu. Pengumpulan data dilakukan dengan teknik purposive sampling melalui observasi untuk mendapatkan komposisi sampah laut, laju pertambahan sampah laut (marine debris) dengan 3 kriteria yaitu adanya muara sungai, aktifitas masyarakat dan tumpukan sampah. Sampah laut (marine debris) di Pantai Kualo Kota Bengkulu terdapat 2 jenis yaitu sampah organik dan sampah anorganik, sampah organik didominasi oleh kayu, dan sampah anorganik didominasi oleh plastik.ANALYSIS OF MARINE DEBRISH IN KUALO BEACH, BENGKULU CITY. Marine debris is material from the remnants of the product left or thrown into the sea by human either intentionally or unintentionally dumped of in the marine environment. The research of marine debris in Kualo Beach Bengkulu city was expected to provide information and data to the students, researcher, goverment and general public as initial scientific information about types, weight, and the rate of increasing in marine debris that were scattered. The data collection was carried out by using purposive sampling technique through observation to get composition of marine debris, the rate of increasing in marine debris had three criterias namely existence of a river mouth, community activities, and pile of debris. Marine debris in Kualo Beach Bengkulu City had two types namely organic and inorganic debris. Organic debris was dominated by wood while inorganic debris was dominated by plastic.


2018 ◽  
Vol 5 (1) ◽  
pp. 59
Author(s):  
Ika Kusumawati ◽  
Mita Setyowati ◽  
Inseun Yuri Salena

Marine Debris or Marine Liiter is a solid material that inadvertently or unintentionally left in the sea that has the impact of threatening the continuity and sustainability of marine life. Research on marine debris was conducted in West Aceh regency covering four coastal districts namely: Meurebo, Johan Pahlawan, Samatiga, and Arongan Lambalek. The purpose of this research is to identify the composition of marine debris in West Aceh district. So it can be as basic information to know the number and types of marine debris scattered in the coastal area of West Aceh regency, as well as for the related services in the management of marine debris. Data collection of marine debris is obtained by using line transects stretched along the coastline at the lowest tide. The results of research showed that Samatiga District is the most abundant area of marine debris with a total of 2300, then District Johan Pahlawan 1848, District Meureubo 281, and 145 District Arongan Lambalek. The most dominant composition of marine debris is found from all research locations divided (26.10%) Plastic Glass, (17.36%) Straw, and (14.95%) Food wrappers


2021 ◽  
Vol 1 (11) ◽  
Author(s):  
Eugenius Alfred Renjaan ◽  
Dortje Theodora Silubun ◽  
Dullah Irwan Latar ◽  
Marvin Mario Makailipessy ◽  
Megawati Elisabet Juley

The research was carried out on Langgur Beach from January to March 2021. The purpose of this study was to determine the correlation and dispersion of marine debris to molluscs in the Intertidal Zone of Langgur Beach, the edge of the Rosenberg Strait, Kei Islands, Indonesia. The data collection method of this research is the quadratic method. The results of the study noted that the total marine debris accumulated at 21 sampling points amounted to 7,596 items consisting of 14 categories of marine debris and 6 species of Mollusca were found. The results of the analysis show that the dispersion of surface marine debris and marine debris in the sediments are scattered in groups, the dispersion per type of macrozoobenthos on the surface and in the sediments is scattered in groups, regularly and randomly. The results of the analysis also showed a positive correlation between marine plastic debris on the sediment surface and the bivalves of Gafrarium pectinatum on the sediment surface.


2020 ◽  
Vol 3 (1) ◽  
pp. 11-20
Author(s):  
Siska Oktavia ◽  
Wahyu Adi ◽  
Aditya Pamungkas

This study aims to analyze the value of the density of marine debris, perceptions and participation in Temberan beach and Pasir Padi beach, as well as determine the relationship of perception and participation to the density of marine debris. This research is a type of research that is descriptive with a mixed approach (quantitative and qualitative). The study was conducted at Temberan beach in Bangka Regency and Pasir Pasir Beach Pangkal Pinang in October 2019. The sampling technique used was random sampling and purposive sampling. The data collection technique was carried out using observation technique namely sampling and questionnaire. The validity test uses the Pearson Product Moment formula and the reliability test uses the Cronbach’s Alpha formula. The results showed that the density of debris in the Temberan beach was more dominant at 10.92 pieces/meter2, while at Temberan beach 3 pieces/meter2. The results of perception and participation are different, with the Temberan beach occupying more complex waste problems. The relationship of perception and participation in the density of marine debris have a relationship that affects each other.


SIMBIOSA ◽  
2014 ◽  
Vol 3 (1) ◽  
Author(s):  
Yarsi Efendi ◽  
Dahrul Aman Harahap

Structure and physiognomy of mangrove strongly influenced by the zonation that occurred in the area of mangroves growth. The differences of zona growth will effect  to differences in the structure and composition of vegetation. There are three zones in the mangrove area, which is caused by the difference of flooding which also resulted in the difference to the salinity. The differences of growth zone will performed to the type vegetation performance (Physiognomy). This study is aims to prove the mangrove’s physiognomy that taken in the coastal area of Rempang Cate  Batam, on March 2014 to June 2014. This study was a survey with data collection using a vertical transect plots 100 m. Based on the research that has been done obtained difference vegetation physiognomy stands for every level of growth in each zone growth. Proximally found 13 species of mangroves in 8 families. The results of the analysis of the vegetation on the trees growth level are, Ceriops decandra have the greatest significance important value 167.55% on sapling (juvenille ) level is dominated by Rhizophora apiculata 120%, and seedling growth level dominated by Rhizophora apiculata  186.80%. Keywords: Structure and physiognomy, mangrove zonation


2018 ◽  
Vol 15 (4) ◽  
pp. 997-1009 ◽  
Author(s):  
Guizhi Wang ◽  
Shuling Wang ◽  
Zhangyong Wang ◽  
Wenping Jing ◽  
Yi Xu ◽  
...  

Abstract. To investigate variation in nitrite, nitrate, phosphate, and silicate in a spring–neap tide in a coral reef system influenced by groundwater discharge, we carried out a time-series observation of these nutrients and 228Ra, a tracer of groundwater discharge, in the Luhuitou fringing reef at Sanya Bay in the South China Sea. The maximum 228Ra, 45.3 dpm 100 L−1, appeared at low tide and the minimum, 14.0 dpm 100 L−1, appeared during a flood tide in the spring tide. The activity of 228Ra was significantly correlated with water depth and salinity in the spring–neap tide, reflecting the tidal-pumping feature of groundwater discharge. Concentrations of all nutrients exhibited strong diurnal variation, with a maximum in the amplitude of the diel change for nitrite, nitrate, phosphate, and silicate in the spring tide of 0.46, 1.54, 0.12, and 2.68 µM, respectively. Nitrate and phosphate were negatively correlated with water depth during the spring tide but showed no correlation during the neap tide. Nitrite was positively correlated with water depth in the spring and neap tide due to mixing of nitrite-depleted groundwater and nitrite-rich offshore seawater. They were also significantly correlated with salinity (R2  ≥  0.9 and P < 0.05) at the ebb flow of the spring tide, negative for nitrate and phosphate and positive for nitrite, indicating the mixing of nitrite-depleted, nitrate- and phosphate-rich less saline groundwater and nitrite-rich, nitrate- and phosphate-depleted saline offshore seawater. We quantified variation in oxidized nitrogen (NOx) and phosphate contributed by biological processes based on deviations from mixing lines of these nutrients. During both the spring and neap tide biologically contributed NOx and phosphate were significantly correlated with regression slopes of 4.60 (R2  =  0.16) in the spring tide and 13.4 (R2  =  0.75) in the neap tide, similar to the composition of these nutrients in the water column, 5.43 (R2  =  0.27) and 14.2 (R2  =  0.76), respectively. This similarity indicates that the composition of nutrients in the water column of the reef system was closely related with biological processes during both tidal periods, but the biological influence appeared to be less dominant, as inferred from the less significant correlations (R2  =  0.16) during the spring tide when groundwater discharge was more prominent. Thus, the variability of nutrients in the coral reef system was regulated mainly by biological uptake and release in a spring–neap tide and impacted by mixing of tidally driven groundwater and offshore seawater during spring tide.


2010 ◽  
Vol 14 (8) ◽  
pp. 1465-1476 ◽  
Author(s):  
D. C. Shaha ◽  
Y.-K. Cho ◽  
G.-H. Seo ◽  
C.-S. Kim ◽  
K. T. Jung

Abstract. Spring-neap and spatial variations of gravitational circulation and tidal exchanges in the Sumjin River Estuary (SRE) were investigated using the flushing rate. The flushing rate was calculated between multiple estuarine segments and the adjacent bay to examine the spatial variation of two exchanges. The strength of gravitational circulation and tidal exchanges modulated significantly between spring and neap tides, where stratification alternated between well-mixed and highly-stratified conditions over the spring-neap cycle. Tide-driven dispersive flux of salt dominated over gravitational circulation exchange near the mouth during spring tide due to the larger tidal amplitude that caused well-mixed conditions and rapid exchange. In contrast, the central and inner regimes were found to be partially stratified during spring tide due to the reduction in tidal amplitude where both gravitational circulation and tidal exchanges were important in transporting salt. The combined contributions of two fluxes were also found during neap tide along the SRE due to the significant reduction in vertical mixing that accompanied strong stratification. Gravitational circulation exchange almost entirely dominated in transporting salt at the upstream end during spring and neap tides.


2021 ◽  
Vol 4 (2) ◽  
pp. 104-113
Author(s):  
Bagus Fadhilah Apriadi ◽  
Talitha Aurellia Alfiansyah ◽  
Zulfati Nur Izzah ◽  
Risca Tasya Qorina ◽  
Ade Tri Kencana ◽  
...  

Abstract - The COVID-19 pandemic in Indonesia has disrupted various community activities. Likewise in Surabaya, which was identified as a black zone in 2020. Therefore, a lockdown policy has been implemented to reduce the COVID-19’s spread such as PSBB Surabaya Raya I, II, and III; PPKM Surabaya; and PPKM Mikro Surabaya. The implementation of the lockdown has become trend on social media and created various assumptions. In addition, the spatial zoning regulations have not supported the pandemic so that the regulations are more siding of the economy and city development without reviewing its readiness facing the pandemic. This study uses secondary data collection methods through data mining also primary data through teleconference and distributing online questionnaires. So, from collecting data on social media and community aspirations, it is hoped that they can create spatial policies that are in accordance with community conditions and can also reduce the number of COVID-19 cases. The result shows that there are five topics becoming peoples’ perceptions and preferences, such as social, economy, mobility, environment, and health. Moreover, they state that PSBB Surabaya Jilid 1,2, and 3 aren’t the best policy and PPKM Micro are the best policy. Similar thing also experienced by 60% informant stating that PPKM Micro is the best policy. There are also state policy suggestions regarding to policy, such as implementation of policies, restoration of education, vaccinations, incentives for health workers, duration of dine in, provision of assistance to workers, government social assistance, optimization of traditional markets, dissemination of information, and operating companies. Abstrak - Surabaya merupakan salah satu kota yang teridentifikasi sebagai zona hitam pada Mei 2020. Oleh karena itu, kebijakan pembatasan telah diterapkan untuk menekan angka penyebaran COVID-19 seperti PSBB Surabaya Raya Jilid 1, 2, dan 3; PPKM Surabaya; serta PPKM Mikro Surabaya. Penerapan kebijakan pembatasan menjadi isu hangat di media sosial dan menimbulkan anggapan positif dan negatif. Selain itu, pada aspek keruangan, peraturan zonasi tata ruang belum menunjang urgensitas pandemi sehingga peraturannya lebih berpihak pada sektor ekonomi dan pembangunan kota tanpa meninjau kesiapan kotanya dalam menghadapi pandemi. Penelitian ini menggunakan metode pengumpulan data sekunder melalui mining data serta data primer melalui wawancara telekonferensi. Sehingga, dari pengumpulan data pada media sosial dan aspirasi masyarakat diharapkan dapat menciptakan kebijakan keruangan yang sesuai dengan kondisi masyarakat dan juga dapat menekan angka kasus COVID-19. Hasil menunjukkan bahwa terdapat lima topik yang cenderung menjadi persepsi dan preferensi para pengguna media sosial, yaitu sosial, ekonomi, mobilitas, lingkungan, dan kesehatan. Selain itu, mereka juga menyatakan bahwa PSBB Surabaya Jilid 1, 2, dan 3 merupakan kebijakan yang tidak diminati dan PPKM Mikro merupakan kebijakan yang paling diminati. Hal serupa juga dialami oleh para narasumber yang menyatakan bahwa 60% narasumber menyatakan PPKM Mikro merupakan kebijakan paling efektif. Terdapat beberapa saran kebijakan menurut narasumber, terkait pelaksanaan kebijakan, pemulihan pendidikan, vaksinasi, insentif tenaga kesehatan, durasi makan di tempat, pemberian bantuan kepada buruh, bantuan sosial pemerintah, optimalisasi pasar tradisional, penyebaran informasi, dan perusahaan yang beroperasi.


2021 ◽  
Vol 325 ◽  
pp. 01023
Author(s):  
Rizki Adriadi Ghiffari ◽  
Haryo Dwito Armono

Coastal erosion is the process of land erosion in coastal areas due to waves and ocean currents which reduce land and can adversely affect socio-economic activities in coastal areas. Coastal erosion risk assessment in the estuary is a development of previous research, because the erosion and accretion processes do not only occur along the shoreline, but also on the side facing river water bodies, due to the confluence of fluvial and marine processes. The landward shift of the shoreline in the Muara Asam Asam coastal area has reached 90 meters in the last 28 years, and has been detrimental because the area is a densely populated area with major economic activities in the fisheries and agriculture sectors. This study aims to determine the coastal erosion risk level zones based on the relationship among vulnerability and consequence parameters, through distance decay weighted based method. The results indicate that Muara Asam Asam has high risk zones of coastal erosion, especially in densely populated residential areas and dry land agriculture on the west side of the estuary, due to the lack of implementation of preventive measures through hard coastal structure and coastal zoning policy to protect socio-economic activities and coastal ecological environments.


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