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Biota yang berasosiasi dengan ekosistem terumbu karang cukup banyak, beberapa diantaranya yaitu ikan karang dan megabentos. Riset ini bertujuan untuk mengetahui kondisi tutupan terumbu karang dan bagaimana hubungannya dengan distribusi ikan karang, megabentos serta kualitas perairan di Perairan Gosong Pramuka Kepulauan Seribu. Pengambilan data ikan karang menggunakan metode UVC, megabentos menggunakan metode Belt Transek dan pengambilan data terumbu karang menggunakan metode LIT. Data diambil pada 2 stasiun yang berlokasi pada wilayah terumbu karang alami dan wilayah yang terdapat media transplantasi karang dengan tiga kedalaman yaitu 3 m, 5 m, dan 7 m. Tutupan terumbu karang di Perairan Gosong Pramuka tergolong kriteria sedang. Kelimpahan ikan karang dan megabentos di kedalaman 3 m lebih tinggi daripada kedalaman lainnya dan memiliki nilai indeks keanekaragaman sedang. Hubungan ikan karang dengan terumbu karang pada riset ini menunjukan hubungan positif namun bernilai rendah yang artinya hubungan lemah, sedangkan hubungan megabentos dengan kualitas perairan di Gosong Pramuka memiliki nilai yang bervariasi yaitu terdapat hubungan positif kuat dan juga lemah. Abundance, Diversity and Distribution of Coral Fish and Megabentos and their relationship to the condition of coral reefs and the quality of waters in Gosong Pramuka, Thousand Islands National Park There are quite a lot of biota associated with coral reef ecosystems, some of which are coral fish and megabentos. This research aims to determine coral reef cover conditions, determine the distribution index of coral fish and megabentos and obtain a relationship between coral fish and coral reef conditions and megabentos with water quality in the Gosong Pramuka Waters of the Thousand Islands. Pengambilan data coral fish using UVC method, megabentos using Belt Transek method and coral reef data retrieval using LIT method. The data were taken at 2 stations located in natural coral reef areas and areas where there is a transplane media with three depths, namely 3 m, 5 m, and 7 m. Coral reef cover in Gosong Pramuka Waters is classified as a medium criterion. The abundance of reef fish and megabentos at a depth of 3 m is higher than other depths and has a moderate diversity index value. The relationship between coral fish and coral reefs in this study shows a positive but low-value relationship, which means a weak relationship, while the relationship between megabentos and the quality of waters in Gosong Pramuka has a varied value, namely there is a strong and also weak positive relationship.

Oil spill phenomena in the ocean possess a very serious threat to ocean health. On the ocean surface, oil slicks immediately start to spread and mostly end up in the ecosystem. Furthermore, it could threaten the organisms living in the ocean or impact nearby coastal area. The aim of this research was to investigate the trajectories of oil spill based on a real accident in the Java Sea. Tracking oil spills using satellite images is an efficient method that provides valuable information about trajectories, locations and the spread intensity. The objective of this study was to periodically track the trajectory of the oil spill from the Karawang incident using Sentinel-1 Synthetic Aperture Radar (SAR) images. Pre-processing of the images consisted of radiometric and geometric corrections. After the corrections, SAR images were mapped and plotted accordingly. To understand the oil spill trajectories in relation to the oceanic processes, the ocean current pattern map and surface wind roses were also analysed. The processed images from July to October 2019 show a trajectory dominated by the oil spill layers movement towards the west to northwest from the original location along with a decrease in the detected oil spill area over time. The identified trajectories of the oil spill followed the ocean current pattern and surface winds. Thus, these two parameters were considered to be the main factors responsible for the oil spill drift.

The complex circulation for both atmospheric and ocean affects the pathways of floating marine debris (MD). The aim of this research was to define the MD trajectories in the Indonesian boundary seas. The Lagrangian particle method was applied with oceanographic factors and debris classes based on 1 to 3% windage class. The simulation was applied during the Northwest and Southeast Monsoon period. On the basis of the obtained findings, the debris trajectory patterns were indicated to vary in the two monsoons. In the northern part of Indonesia, all neighbouring countries were affected, especially those near the boundaries. In the southern part of Indonesia, most of the debris headed west towards the Indian Ocean. MD was mostly transported by the ocean currents and monsoonal wind and ended up in the coastal area. Some debris was also still floating in the open ocean after three months. This study concluded that marine litter not only polluted Indonesia water, but also the neighbouring countries.

Pulau Seribu merupakan salah satu destinasi wisata penting di Provinsi DKI Jakarta. Sebagai salah satu kabupaten kepulauan, Pulau Seribu mempunyai tantangan terutama pada aspek pengelolaan sampah. Saat ini, pengelolaan sampah masih bersifat pengelolaan sentris dimana pengelolaannya diserahkan kepada pemerintah daerah. Disisi lain terdapat LSM (Lembaga Swadaya Masyarakat) yang mempunyai inisiatif agar sampah dapat bermanfaat bagi masyarakat. Untuk itu, kegiatan ini dimulai dari mengindentifikasi beberapa lokasi sampah di pulau Pramuk dan sekitarnya yang kemudian melakukan sharing knowledge dengan LSM penggiat sampah. Kegiatan ini diharapkan dapat meningkatkan pemahaman bagaimana pengelolaan sampah yang berkelanjutan. Hasil menunjukkan bahwa kesadaran masyarakat Pulau Pramuka terhadap penanganan sampah mulai meningkat ditandai dengan adanya Rumah Literasi Hijau. Tempat tersebut menjadi salah satu lembaga yang didirikan oleh warga di Pulau Pramuka yang memiliki pengelolaan sampah lokal. Proses yang dilakukan mulai dari penyadaran terhadap pemilahan dan pengumpulan sampah bagi masyarakat sampai kepada pengolahan sampah menjadi bahan bakar. Hal ini menjadi Langkah konkret yang melibatkan partisipasi masyarakat. Pada kondisi luas dan skala yang lebih besar, dapat terus dilakukan sebagai upaya penanggulangan timbulan sampah di pulau tersebut.

Kepulauan Seribu merupakan gugusan pulau di perairan utara Jakarta yang memiliki daya tarik wisata terutama untuk snorkeling dan diving dengan adanya terumbu karang, salah satunya adalah Pulau Sepa. Ekosistem terumbu karang merupakan ekosistem yang rentan mengalami degradasi oleh berbagai faktor. Kegiatan snorkeling menjadi salah satu ancaman yang terjadi pada terumbu karang, oleh karena itu diperlukan pengukuran mengenai kondisi kesehatan ekosistem terumbu karang, khususnya Pulau Sepa kepulauan Seribu, sebagai bentuk integrasi konservasi ekosistem dan pengelolaan wisata. Riset ini dilakukan di Pulau Sepa, Taman Nasional Kepulauan Seribu pada Bulan Maret-Agustus 2020. Wilayah yang diamati merupakan spot snorkeling pada kedalaman 1-5 m pada 10 stasiun penelitian , dengan mengklasifikasikan warna kesehatan dan juga tipe karang menggunakan klasifikasi dari Coral Watch. Skor warna kesehatan terumbu karang pada zona snorkeling Pulau Sepa, didominasi dengan kondisi kurang sehat pada skor warna 4, dengan dominasi tipe karang branching dan boulder dan sedikit tipe pertumbuhan plate dan soft. Kriteria kesehatan terumbu karang mayoritas berada pada kurang sehat, sedikit sehat dan tidak ditemukan yang tidak sehat. Rincian kriteria kesehatan terumbu karang kurang sehat di temui pada stasiun 1-10 dengan masing masing persentase 92%, 72%, 100%, 94%, 78%, 94%, 100%, 100%, 67%, dan 89%, untuk rincian kriteria kesehatan terumbu karang sehat pada stasiun 1-10 dengan masing-masing persentase 8%, 28%, 0%, 6%, 22%, 6%, 0%, 0%, 33%, 11%. Faktor lingkungan seperti kecerahan yang dipengaruhi oleh sedimentasi serta tekanan antropogenik dari aktivitas manusia mempengaruhi kondisi tutupan karang di pulau ini. The Thousand Islands are a group of islands in the northern waters of Jakarta which have tourist attractions, especially for snorkeling and diving with the presence of coral reefs, one of which is Sepa Island. Coral reef ecosystem is an ecosystem that is prone to degradation by various factors. Snorkeling activities are one of the threats that occur on coral reefs, therefore it is necessary to measure the health condition of coral reef ecosystems, especially Sepa Island, the Thousand Islands, as a form of integration of ecosystem conservation and tourism management. This research was conducted on Sepa Island, Thousand Islands National Park on March - August 2020. The area observed is a snorkeling spot at a depth of 1-5 m at 10 research stations, by classifying the color of health and also the type of coral using the classification from Coral Watch. The coral reef health color score in the Sepa Island snorkeling zone, was dominated by unhealthy conditions at a color score of 4, with a dominance of branching and boulder coral types and few plate and soft growth types. The majority of coral reef health criteria are unhealthy, slightly healthy and not found unhealthy. Details of the health criteria for unhealthy coral reefs were found at stations 1-10 with each percentage of 92%, 72%, 100%, 94%, 78%, 94%, 100%, 100%, 67%, and 89%, respectively. details of health criteria for healthy coral reefs at stations 1-10 with each percentage of 8%, 28%, 0%, 6%, 22%, 6%, 0%, 0%, 33%, 11%. Environmental factors such as clarity which influenced by sedimentation and anthropogenic factors from human activities affect the condition of coral cover on this island.

This research aims to determine the ecosystems connectivity by observing the distribution of inter-island mangrove propagules in the territorial waters of Biawak Island. The data used are wind, tidal, and bathymetry of 2018. They are modeled according to the propagules’ weight and the particle trajectory module. The results showed that the entire propagules (Rhizopora sp, Sonneratia sp, and Brugueira sp) dominantly moved to the west and southeast. They are carried by the currents that are influenced by the west and east monsoon. The propagules of Rhizopora sp moves from east to southeast, Sonneratia sp moves from east to south, and propagules Brugueira sp moves from west to north. In addition to oceanographic factors, other parameters that can influence the pattern of propagules movement is the propagule’s mass; the lighter it is, the easier it is to be carried away.

Biodiversity of macrozoobenthos in Pasir Island, Brebes, is under-explored. On the other hand, the baseline information regarding macrozoobenthos is essentially required for better future environmental management. This research aims to analyze macrozoobenthos community structure in the Pasir Island that has not been documented. Surveys were carried out in the rainy season. In this study, a total of 10 sampling locations were classified into two different groups that represent “control” and “disturbed” station. The main structural parameters of the macrozoobenthos identified at each station were specific richness (S), abundance (number of individuals m -2 , N) and the Pielou’s index (J). Additionally, the pairwise comparison between groups was conducted by using analysis of similarity (ANOSIM) and the similarity percentage (SIMPER) to obtain the description of community structure. A total of 1054 specimens were counted from the “control” and “disturbed” stations. These specimens belonged to five animal classes, namely, Bivalvia, Gastropoda, Malacostraca, Cephalopoda and Echinoidea. ANOSIM and SIMPER analysis demonstrated that a significant difference was found between “control“ and “disturbed“ stations with the percentage of dissimilarity value of 88.82%. In addition, environmental variables such pH, salinity and type of substrates contributed significantly to this difference. This result provides insight regarding macrozoobenthos diversity and ecological information that may contribute to further conservation management in the Pasir Island, Indonesia.

The oceanographic data presented in this article were collected in the Bonpies island, as part of the Java Seas. The data were collected by in-situ measurement from several expeditions from 2011 to 2016. The data presented here include bathymetry, sea surface temperature (SST), sea surface salinity (SSS), ocean transparency, dissolved oxygen, and pH. All data were collected by daily in-situ measurements in different seasons. There were 5768 data measured from several portable instruments, including echo-sounder and portable instruments. Calibration of the instrument was carried out before and after the survey in accordance with the protocol provided by the manufacturer. Measurements are made directly and recorded into a log sheet paper and the data format is Comma Separated Files (.csv). This in-situ data would be most useful for regional climate studies, including forecasting such as El Nino and Indian Ocean Dipole effects, oceanographic condition, and marine resources management.

This study was conducted around the beaches in Indonesia in order to investigate the level of pollution in the marine environment. Thirteen (13) locations in six (6) regions namely: Seribu Island, Banten, South Java, Biawak Islands, West Papua, and East Nusa making up a total length of 12.84 km of the area were studied. This investigation focused on the debris around isolated beaches, tourist attraction centers, fishing zones and marine protected areas (MPA). The method employed in this study was dependent on the international coastal cleanup form. The samples of debris collected and studied varied from the year 2013 to 2018 for a thorough investigation. The beach debris monitoring equipment revealed information about the distribution, abundance, types and, effects of marine debris on the ecosystem. Moreover, the study showed that the mass of debris collected within the areas listed weighted 1113.10 kg for 34,330 collected items. Also, the average density was noted to range between 1.43 and 5.11 items/m2. However, it was observed that plastic products constituted the highest percentage of the pollutants found in almost all the stations, with plastic bags being the most dominant.

Seagrasses are an essential component of the coastal environment with provide many ecosystem services beneficial to humans. Understanding the pattern of dispersal of segrasses is important for conservation management. The aimed of this research was to analyze the seed dispersal of the seagrass Enhalus acoroides in the Marine Protected Area of Biawak Islands, Indramayu, based on hydrodynamic modelling. Oceanographic data were downloaded from several open acces website and location of seagrasses based one insitu observation. Then, oceanographic parameters and seed traits were used to develop the particle trajectory model. Our analysis showed that the seafloor’s depth around the islands varied, ranging from 8 m to 48 m. The seed dispersal was strongly influenced by alternating tidal currents (reversing current). The particle trajectory showed that most of the seeds would be transported outward away from each source in the islands, and they settled in deeper areas further from the coast of the islands. This result indicates that the seagrass population in Biawak Islands might depend predominantly on vegetative recruitment, which is slow. This may be related to the low seagrass canopy cover in Biawak Islands.

At present, marine debris is an important issue in Indonesia. Due to the complex pattern of ocean currents, research on the distribution of marine waste in Indonesia is still very lacking. This study aims to determine the movement of microplastic particles at the Savu Sea National Marine Park. The method used was to simulate the hydrodynamic model and particle trajectory. Data used were wind, tides, bathymetry, coastline, weight of garbage, and garbage fluxes. Analysis was carried out on physical data visualization, hydrodynamic models, and particle trajectory models. The hydrodynamic model simulation shows if the average current velocity ranges from 0,0002 m/s to 0.35 m/s. The particle trajectory showed that microplastic particle movements tend to move to the south, where some of them move west and east of the Savu Sea. Besides being affected by tides, microplastic particle movements in the Savu Sea National Marine Park are also influenced by various currents that pass through the Savu Sea waters, especially by Indonesia Troughflow . Keywords: ocean model, particle pathways, microdebris, Savu Seas, Indonesia Troughflow Abstrak. Saat ini, sampah laut merupakan salah satu isu kemaritiman di Indonesia. Karena pola pergerakan arus yang kompleks, penelitian mengenai distribusi sampah laut di Indonesia masih sangat kurang. Taman Laut Nasional Laut Sawu sebagai wilayah yang dilalui Arlindo juga memiliki karakteristik oseanografi yang kompleks. Penelitian ini bertujuan untuk mengetahui hasil simulasi pergerakan partikel sampah di Taman Nasional Perairan (TNP) Laut Sawu. Metode yang digunakan yaitu simulasi model hidrodinamika dan lintasan partikel. Data yang digunakan yaitu angin, pasang surut, batimetri, garis pantai, berat sampah, dan flux sampah. Analisis dilakukan terhadap visualisasi data fisik, model hidrodinamika, dan model pergerakan partikel. Simulasi model hidrodinamika menunjukkan jika rata-rata kecepatan arus berkisar antara 0,0002 m/s hingga 0,35 m/s. Hasil simulasi menunjukkan jika pergerakan partikel mikroplastik cenderung bergerak ke selatan, dimana sebagian bergerak ke arah barat dan timur Laut Sawu. Selain dipengaruhi pasang surut, pergerakan partikel mikroplastik di Taman Laut Nasional Laut Sawu juga dipengaruhi oleh berbagai arus yang melewati perairan Laut Sawu khususnya Arlindo. Kata kunci: pemodelan, lintasan partikel, sampah mikro, Laut Sawu, Arlindo.

Habitat risk assessment is critical to assess the state of an environment. This research was conducted with the aim to assessand map the risk value of Mangrove Forest due to the oil spill incident in the Muara Gembong Regency, Bekasi District, which previously polluted coastal areas, especially in the mangrove ecosystem. Risk assessment is carried out as an effort to mitigate disaster to have a better prevention strategy, especially in areas that have a higher risk. The method for assessing risk in the mangrove ecosystem in Muara Gembong uses Habitat Risk Assessment using the Euclidean Distance formula, which is divided into three risk classes: low, medium, high. The risk value in coastal areas prone to oil spills has a moderate risk value with a total area of 3.7 km2 because the mangrove ecosystem has good resilience, and low risk for the inner mangrove area of the coastal area has a low chance with an area of 2.85 km2. The risk value in the medium class is 1.02, and the risk value in the low rank is 0.11.

This study aims to examine the pattern of microplastic waste movement of Pacific Garbage Patch (PGP) that has the potential to enter the north of Indonesia sea. This study very important because microplastic affected the regional tourism activities, water pollution, and economics of fisherman and local society. The impact is very widerange to local and national economics. The method used is a simulation and descriptive analysis. The simulation method used is hydrodynamic simulation and trajectory of particles conducted for 365 days in 2016. The study areas in this study include eastern Indonesia, the Philippines, and the Pacific Ocean. The data used are wind, tidal, bathymetry, microplastic weight, and microplastic flux. The simulation results show the movement of microplastic at point source 1 tends to the northeast with a clockwise circular motion. The simulation results at source point 2 indicate that the microplastic movement tends to revolve around the source point in a clockwise circular motion. The result of simulation of source point 3 shows that the microplastic movement tends to the north with the circular motion and left-right movement. The displacement of microplastic particles within a year is only 0.11 - 8.94 km from the source point. This study showed that within a year, microplastic waste from PGP does not have the potential to enter the waters of Indonesia.

Ekosistem mangrove di Pulau Jawa mengalami degradasi setiap tahunnya, terlepas dari perannya sebagai salah satu ekosistem utama pesisir. Hal ini diperparah dengan kejadian tumpahan minyak akibat kebocoran pipa pada sumur YYA-1 ONWJ milik Pertamina, yang mencemari wilayah perairan dan pesisir Muara Gembong. Presepsi dan respon masyrakat terhadap kejadian tersebut penting untuk ditelaah lebih lanjut guna menentukan langkah dan kebijakan yang diambil untuk meminimalisir dampak-dampak terkait. Metode yang digunakan dalam riset ini menggunakan teknik survei dengan wawancara langsung masyarakat di Muara Gembong dengan menggunakan skala likert dan juga observasi langsung keadaan di daerah riset. Hasil dari survei wawancara masyarakat di Muara Gembong menyatakan bahwa mayoritas warga sekitar telah memiliki pengetahuan yang baik terhadap dampak negatif yang ditimbulkan dari tumpahan minyak terhadap ekosistem mangrove yang ada di daerah pesisir. Respon dari masyarakat untuk melakukan pembersihan tumpahan minyak di lokasi yang terpapar dapat berdampak meminimalisir kematian mangrove di daerah tersebut perlu didukung.

Understanding the physio-chemical oceanic and atmospheric processes is critical in monitoring climate change. Archipelagic and Small Island countries are vulnerable to the detrimental effects of climate change, and open access oceanic databases can solve data limitations leading to further development of action plans and government policies. A website was developed (www.isea-podc.org) to distribute and augment free oceanographic data based on various in-situ sampling instruments. Oceanographers review the data collected and stored in the portal. It is led by the Marine Research Laboratory (MEAL), Padjadjaran University, in partnership with Marine Science Institute (MSI), University of the Philippines. This framework supplements information that can support marine ecosystems, fisheries, and climate science studies. Furthermore, all data are accessible to not only the academe but also decision-makers in all aspects. The data sources are student research and the new instruments (RHEA and ARHEA) developed by MEAL. In the future, the portal will be integrated with other government institutional data to provide other functional features and can yield network-wide analyses. In the next phase, collaboration from ASEAN countries should be conducted to gain more impact and provide robust datasets.

Marine instrumentation is used to make optimal use of natural resources in the marine sector in the form of storing oceanographic characteristics data. This research aims to evaluate a new Lagrangian instrument called RHEA, developed by the Marine Research Laboratory, Padjadjaran University. This research was conducted by examining the correction factors contained in the RHEA from the mechanical and electronic side to optimize the work and carry out appropriate validation of the oceanographic parameter data. The method used is by studying marine instrument literature and conducting a series of tests on the tool until it is ready for use at sea. The output of this research is in the form of literature on how the device works to be effective and efficient in collecting data about certain oceanographic factors. The result shows that RHEA has various functions: measuring pH, dissolved oxygen, temperature, turbidity, and salinity in real-time time. This instrument needs to be slightly modified again related to its design so that it can be more optimal when measuring oceanographic parameter data. In addition, in terms of data acquisition, it is necessary to improve the electronic components by replacing or adding several parts so that the data obtained can have high accuracy.

Saat ini, isu pencemaran laut yang diakibatkan oleh sampah antropogenik sudah menjadi tantangan global. Sampah yang ditemukan di kolom air, pantai, dan sungai memberikan dampak negatif terhadap ekosistem dan biota. Tujuan riset ini adalah mengetahui persepsi masyarakat terkait dengan kondisi dan solusi pencemaran sampah di perairan Muara Gembong. Metode yang digunakan dalam penelitian terbagi menjadi tiga tahapan yakni melakukan diskusi terhadap masyarakat dan pemangku kepentingan lokal, Kemudian melakukan wawancara dengan masyarakat dan pihak pengelola sampah tradisional, dan ketiga dengan melakukan survei inventarisasi sampah di sekitar ekosistem dan sungai. Persepsi masyarakat terkait sampah yang ditemukan di muara sungai dan ekosistem menunjukkan bahwa sumber sampah berasal dari aktivitas masyarakat sekitar dan hulu sungai. Sampah yang ditemukan pada ekosistem pesisir yaitu mangrove diindikasikan berasal dari wilayah Karawang atau perairan di bagian utara. Selain itu, menurut masyarakat bahwa sampah di wilayah tersebut juga berasal dari Jakarta (selatan Muara Gembong) dan sungai-sungai lainnya. Kondisi oseanografi Teluk Jakarta juga berpengaruh terhadap distribusi sampah, seperti arus, angin, dan pasang surut. Solusi yang ditawarkan yaitu dengan perbaikan infrastuktur seperti pembuatan tempat sampah terpadu. Kemudian adanya regulasi dan aturan serta edukasi terkait pengelolaan sampah. Masyarakat juga menginginkan adanya pelatihan pengolahan sampah sehingga dapat meningkatkan ekonomi. Secara umum masyarakat lokal Muara Gembong mengetahui dampak kerusakan alam dan kerugian sosial ekonomi yang terus terjadi serta menjadikan perbaikan sistem infrastruktur dan edukasi menjadi kunci utama solusi permasalahan sampah laut. Di sisi lain, peran serta masyarakat dan pemerintah menjadi kunci keberhasilan penanganan sampah.

This study investigates the locations of coral bleaching events in Indonesia based on the Sea Surface Temperature Anomaly (SSTA) from the 2015-2019 period. SST was downloaded from the satellite with a resolution of 4 km. The method used was the Hotspot Index and Degree Heating Week issued by the National Ocean Atmospheric Administrations (NOAA) through the Coral Reef Watch (CRW) program. Results obtained from the Hotspots index shows that almost all Indonesian waters have the potential to experience coral bleaching and the area that has a high potential is West Sumatra with the Death Index Degree Heating Week reaching 8-12 °C - weeks with Alert Level 2 status. an increase in temperature by 1.5°C as a result of global warming, then the area with the most massive death impact was West Sumatra with an increase of 3.82 - 6.32°C - weeks. The relationship between SST anomaly and coral reef mortality is 55 - 56%, so it is a strong relationship category.

Monitoring sampah secara kontinu dan global diperlukan untuk mengurangi dampaknya di perairan. Salah satunya monitoring sampah di Pantai Pangandaran yang merupakan salah satu objek wisata andalan di Jawa Barat. Banyaknya jumlah penduduk dan wisatawan menyebabkan sering terdapat sampah hasil buangan dan yang berasal dari daerah lain. Kegiatan ini bertujuan untuk memberikan pengetahuan kepada pengunjung Pantai Pangandaran maupun masyarakat dalam meningkatkan kepedulian terhadap sampah pesisir laut. Khalayak sasaran berupa masyarakat dan wisatawan pantai Pangandaran. Kegiatan dilakukan dengan metode partisipatori yakni memberikan wawasan bagaimana mengumpulkan sampah dengan basis ilmiah sederhana namun dapat dipertanggungjawabkan. Berdasarkan kegiatan pelatihan secara keseluruhan, baik dalam bentuk ceramah/diskusi maupun aksi bersih pantai dapat disimpulkan bahwa khalayak sasaran memahami pentingnya menjaga lingkungan pesisir dan laut. Serta adanya peningkatan skill khalayak sasaran dalam memahami upaya dunia melalui organisasi ICC (International Coastal Clean Up) dengan pengelompokkan sampah yang ada di dalamnya. Para peserta juga dapat mengaplikasikan form tersebut dikarenakan kemudahan untuk mengisi. Dilain hal, diperlukan penerjemahan form tersebut kedalam Bahasa Indonesia agar dapat digunakan oleh semua lapisan masyarakat.

Marine Protected Areas (MPA) is an area that potentially poses stress from outside such as human activities and ocean pollution. One of the global issues that threat ecosystems include MPA is ocean debris. The aim of this paper is to assess vulnerability of MPA based on the trajectory of debris affected by oceanographic condition. Three MPAs were chosen in the Java Sea region including: Seribu Islands National Parks, Biawak Island Conservation Area, and Karimunjawa Islands National Parks. The data provided by The Hybrid Coordinate Ocean Model surface current and Global Forecast System surface wind were used to determine the trajectory of the debris. We simulate the ocean condition in two monsoons. The results showed that debris floating around the MPAs have a potential of reaching beaches inside the MPAs and have different patterns between the monsoon. Furthermore, in Seribu Islands and Karimunjawa Islands which are designated as National Parks, the debris managed to land in the most crucial zones, Core Zone and Buffer Zone. Modelling of marine debris, such as the one used in this study can be used to inform authorities regarding the landing points of floating debris to create better management decisions in battling global marine debris issues.

The mangrove forest in Brebes is one of the mangrove areas that were degraded due to abrasion and excessive logging in the North Coast of Java Island, Indonesia. This research aimed to analyze macrozoobenthos community structure in the mangrove forest that has not been documented. Surveys were carried out in the rainy season. In this study, a total of 10 sampling locations were divided into two different groups that represent “control” (station) and “disturbed” sites. The main structural parameters of the macrozoobenthos identified at each station were specific richness S (number of species), abundance N (number of individuals.m-2), the Shannon-Wiener index N1. A total of 346 specimens were counted from the two different stations (“control” and “disturbed”). These specimens were belonged to five animal classes, namely, Bivalvia, Gastropod, Malacostraca, Polychaeta, Cephalopoda. Pairwise comparison of the site groups with one-way analysis of similarity (ANOSIM) was not significant for between “control” and “disturbed” groups (p=0.062), where the average dissimilarity between the two stations was 88.42%. This result provides macrozoobenthos diversity and ecological information that may contribute to further conservation management in the mangrove forest in Brebes, Indonesia.

Penelitian ini bertujuan untuk mengetahui kondisi komunitas terumbu karang di Pulau Panjang, Kepulauan Seribu. Pengambilan data primer dilaksanakan pada bulan November 2016 dan data sekunder didapat dari penelitian lain di lokasi yang sama. Metode yang digunakan dalam penelitian ini adalah Transek Foto Bawah Air atau Underwater Photo Transect (UPT). Data lapangan berupa foto kemudian dianalisis dengan menggunakan perangkat CPCe atau Coral Point Count with excel extension untuk mengetahui kondisi terumbu karang di lokasi penelitian. Berdasarkan hasil pengamatan, kondisi komunitas terumbu karang di lokasi penelitian termasuk dalam kondisi cukup baik namun kategori kerusakannya adalah rusak sedang.

Pulau Untung Jawa merupakan salah satu pulau pemukiman dan pulau destinasi wisata di Kepulauan Seribu, Jakarta. Adanya aktivitas lalu lintas kapal, perbaikan kapal, dan proyek reklamasi pantai yang ada di Pulau Untung Jawa berpotensi mencemarkan air dan tanah disekitarnya sehingga menurunkan kualitas lingkungan di Pulau Untung Jawa. Penelitian mengenai kandungan logam berat timbal (Pb) dan kadmium (Cd) yang ada di air dan sedimen yang ada di Pulau Untung Jawa dilakukan untuk mengetahui seberapa besar kandungan logam berat tersebut. Cemaran logam berat ini bisa mengontaminasi biota yang ada diperairan Untung Jawa dan akan berdampak berbahaya bagi manusia melalui biota melalui rantai makanan. Pengambilan sampel dilakukan pada November 2019 di 4 (empat) stasiun yang merepresentasikan karakteristik pulau yaitu pulau wisata dan reklamasi pantai. Sampel dianalisis kandungan logam berat Pb dan Cd dengan menggunakan AAS (Atomic Absorption Spectrophotometry). Hasil analisa kandungan Pb pada air berkisar 0,5122 – 0,6003 mg/L dan kandungan Cd pada air berkisar 0,0674 – 0,792 mg/L yang tergolong sudah melebihi baku mutu menurut Keputusan Menteri Negara Lingkungan Hidup Nomor 51 Tahun 2004. Hasil Pb pada sedimen berkisar antara 14,1176 – 24,1952 sehingga sudah melampaui batas aman dan kandungan Cd berkisar antara 1,968 – 2,760 mg/l mg/L melebihi baku mutu maksimal yang ditetapkan oleh ANZECC/ARMCANZ. Sumber cemaran logam berat Pb dan Cd di Pulau Untung Jawa ini bersumber dari kegiatan proyek reklamasi pantai yang berada di timur Pulau.

Kegiatan pendampingan monitoring perairan ini bertujuan untuk memberikan informasi terkait penyebab kematian ikan di Keramba Jaring Apung (KJA) di desa Babakan, Kabupaten Pangandaraan. Permasalahan yang dihadapi oleh pembudidaya adalah kematian ikan yang sering sekali terjadi. Untuk itu, metode yang dipakai adalah dengan integrasi hasil penelitian, pengamatan lapangan dan pendampingan. Metode pelaksanaan adalah dengan melakukan pengamatan langsung dan pengukuran langsung parameter air seperti kecerahan, DO, suhu, arus, dan salinitas perairan. Selanjutnya interpretasi dilakukan dengan melihat komoditas ikan yang ada sehingga dapat dijelaskan penyebab kematian ikan. Pendampingan ini dilakukan kepada kelompok Karang Taruna pengelola KJA dan mahasiswa KKN (Kuliah Kerja Nyata). Hasil kualitas air menunjukkan bahwa parameter air di KJA tidak lagi mendukung untuk budidaya dikarenakan arus yang lambat, kecerahan yang rendah, suhu yang tinggi. Hasil kegiatan adalah bahwa kelompok budidaya dan mahasiswa mengetahui bagaimana monitoring perairan dan penyebab kematian ikan serta mendapatkan informasi tentang salah satu kegunaan RHEA sebagai alat ukur untuk monitoring kondisi perairan. Dalam hal ini RHEA dapat digunakan untuk monitor perairan.

Biawak Islands is one of Marine Protected Areas (MPA) in Java Seas and categorized as remote area. The purpose of this research is to assess data's from 2011-2017 and to understand about these island from oceanographic point of view. Due to its location in the center of Java Sea (JS), variations of oceanographic condition at Biawak Island is supposed to be similarity with JS. Seasonal variations in this shallow-flat topography of JS are mostly influenced by the monsoon due to the sea level difference between Pacific and Indian Ocean. Water masses from the South China Sea (SCS) and Pacific Ocean (PO) take turns to enter JS at two distinct monsoon seasons. The results showed that temperature ranges 26.28 - 34.3 ?C, salinity ranges 27.5 - 34.5 psu, transparency ranges 0.7 - 20 m, dissolved oxygen ranges 4.1 - 6.5 mg/L, and pH 6.30-8.5. Tides with mixed tide prevailing diurnal. The wind pattern with monsunal variation and the surface current is about 0.2-0.8 m/sec. The dominant substrat in the Biawak is sand and coral. Further, there is a need long-term programs concentrate on delivering quantification data related to environmental issues.

TPI Pangandaran merupakan basis pendaratan ikan terbesar di Kabupaten Pangandaran. Beberapa jenis alat tangkap seperti jaring insang, trammel net, jaring dogol, pancing rawai, pukat pantai dan bagan dioperasikan di wilayah tersebut. Penelitian ini bertujuan untuk membandingkan jenis hasil tangkapan dan laju tangkap keenam alat tangkap. Penelitian dilaksanakan mulai bulan Maret-Juli 2017 di TPI Pangandaran. Data dikumpulkan melalui survey dan wawancara yang meliputi data jumlah dan jenis hasil tangkapan, proporsi hasil tangkapan utama dan sampingan serta waktu trip penangkapan. Hasil penelitian menunjukkan hasil tangkapan utama jaring insang adalah layur dan bawal putih dengan proporsi 55,07%, trammel net yaitu udang jerbung dan udang dogol dengan proporsi 42,46%, jaring dogol yaitu udang dogol dan udang krosok dengan proporsi 68%, pancing rawai yaitu kakap putih dan tongkol dengan proporsi 25,50%, pukat pantai yaitu ikan layur dan teri dengan proporsi 30,7%, dan bagan yaitu udang rebon dan ikan teri dengan proporsi 83,78%. Hasil analisis laju tangkap menunjukkan bahwa jaring insang memiliki nilai laju tangkap 5,56 kg/jam, trammel net 9,68 kg/jam, jaring dogol 40,08 kg/jam, pancing rawai 2,73 kg/jam, pukat pantai 8,01 kg/jam dan bagan 8,18 kg/jam.

Marine Debris is one of the spotlight issues of the world. The existence of marine debris can disrupt the ecosystem. Marine Debris carried by the current to coastal areas and accumulated along the coast. The study area of this research was on the coastline of TundaIsland, which located between Ban-ten and Lampung Provinces. These two provinces are part of two major islands of Indonesia, Java and Sumatra Island which have a high density of population. Household needs produce every day directly proportional to the population. This study is to record what types of garbage contained along the coast. There are 8 stations used in this study using International Coastal Cleanup (ICC) form with an area of 100 m2 collection at each station. From 800m2 area coverage, 1,234 items collected with 47 kg weight of debris and the density 0.072 kg/m2 with abundance 0.75 items/m2. This result suggests that household needs give the big proportion of debris such as Food wrapper, cigarettes butts, and foam pieces. In addition, the study indicates that there is a strong relation between human activities and spreading of debris.

Instrumen Lagrangian telah banyak digunakan untuk pengumpulan data arus laut dan observasi di perairan Indonesia membutuhkan data yang langsung dapat diketahui (real time). Kajian ini menekankan pada pengembangan GPS Drifter Combined (GERNED) dari sisi desain dan sistem pengukuran. Hasil pengujian menunjukkan bahwa GERNED dapat digunakan di danau, perairan dangkal, dan laut terbuka. Konstruksi terdiri dari bahan akrilik, Polyethylene, dan aluminium. Desain konstruksi terdiri dari bagian atas sebagai penutup dan juga tempat sensor udara dan lampu indikator, bagian tengah yang merupakan pusat mikro-kontroller, catu daya, sensor-sensor, penyimpanan data manual dan pengiriman data via satelit. Biaya yang dibutuhkan untuk membuat alat ini sekitar 15.000.000 (lima belas juta rupiah) dengan biaya terbesar adalah kontrol pengiriman data. Pada bagian bawah merupakan baling-baling statik. Pengujian yang dilakukan di laboratorium untuk melihat posisi lokasi sudah menunjukkan data yang sama dengan data lapangan sedangkan untuk pengujian lapangan yang dilakukan di pulau Untung Jawa menunjukkan bahwa arah dan pergerakan GERNED sama dengan pergerakan float tracking umumnya.