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Agus Alim Hakim
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Center for Coastal and Marine Resources Studies (CCMRS) Kampus IPB Baranangsiang, Jl. Raya Pajajaran No. 1, Bogor, Jawa Barat, Indonesia 16127
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COJ (Coastal and Ocean Journal)
Published by Institut Pertanian Bogor
ISSN : -     EISSN : 25498223     DOI : https://doi.org/10.29244/COJ.5.1
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science Social Sciences
COJ (Coastal and Ocean Journal) memiliki ISSN Online: 2549-8223 adalah Jurnal yang dikelola oleh Pusat Kajian Sumberdaya Pesisir dan Lautan, Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM), IPB University, dengan tujuan menyebarluaskan informasi tentang perkembangan ilmiah bidang pengelolaan wilayah pesisir dan lautan di Indonesia. Yang dimaksud dengan perkembangan ilmiah, pengelolaan, inovasi dan teknologi bidang pesisir dan lautan di Indonesia antara lain: Pengelolaan Perikanan, Pengolahan Hasil Laut, Bioteknologi Kelautan, Pengelolaan Sumberdaya Perairan, Pengelolaan Sumberdaya Pesisir dan Lautan, Pemetaan Wilayah Pesisir dan Laut, Hukum dan Sosial Ekonomi Wilayah Pesisir dan Laut, Sistem Sosial dan Ekologi Pesisir dan Lautan, Jasa Ekosistem Pesisir dan Lautan, Konservasi Sumberdaya Pesisir dan Laut serta Pengendalian Pencemaran Lingkungan Pesisir dan Lautan. Berdasarkan Surat Keputusan ISSN LIPI bahwa Coastal and Ocean Journal telah terdaftar dalam ISSN online dengan Nomor SK no. 0005.25498223/JI.3.1/SK.ISSN/2017.03 - 8 Maret 2017. Naskah yang masuk ke COJ akan dicek mengenai pedoman penulisannya oleh Administrasi, apabila sudah sesuai akan direview oleh 1 (satu) orang Dewan Penyunting dan 1 (satu) orang Mitra Bestari (Peer-Reviewer) berdasarkan penunjukan dari Ketua Dewan Penyunting. Keputusan diterima atau tidaknya suatu naskah menjadi hak dari Ketua Dewan Penyunting berdasarkan atas rekomendasi dari Dewan Penyunting dan Mitra Bestari. Jurnal COJ terbit 2 kali dalam 1 tahun (Juni dan Desember) Focus and Scope Pengelolaan Perikanan Pengolahan Hasil Laut Bioteknologi Kelautan Pengelolaan Sumberdaya Perairan Pengelolaan Sumberdaya Pesisir dan Lautan Pemetaan Wilayah Pesisir dan Lautan Kebijakan dan Ekonomi Wilayah Pesisir dan Lautan Sistem Sosial dan Ekologi Pesisir dan Lautan Jasa Ekosistem Pesisir dan Lautan Konservasi Sumberdaya Pesisir dan Lautan Pengendalian Pencemaran Lingkungan Pesisir dan Lautan
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 80 Documents
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PEMODELAN SEBARAN TOTAL SUSPENDED SOLID (TSS) DARI PEMBUANGAN LIMBAH PENGEBORAN DI LAUT NATUNA UTARA Ari Gunawan Wardhana; Santoso
Coastal and Ocean Journal (COJ) Vol 7 No 1 (2023): COJ (Coastal and Ocean Journal)
Publisher : Pusat Kajian Sumberdaya Pesisir dan Lautan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/coj.v7i1.44738

Abstract

Dumping of drilling waste (cutting and used drilling mud) into the sea is predicted to have an impact on sea waters. To predict the distribution of waste in sea waters, a simulation model of the distribution of waste is carried out with the main parameter is Total Suspended Solid (TSS). The source of data for modelling comes from the drilling activities of oil and gas companies in the North Natuna Sea. The model results show an increase in the maximum TSS concentration due to the highest dumping of drilling mud around 60-65 mg/l which occurred in the Transitional Season II during section-1 drilling. Meanwhile, the increase in TSS concentration due to drill cuttings was highest around 5-6 mg/l in the West Season during section-2 drilling. When compared with the seawater TSS quality standard according to PP No. 22 of 2021 Appendix VIII for marine biota (20 mg/l), the TSS concentration due to drilling mud discharge appears to exceed the quality standard at a radius of 50 m from the discharge point, whereas due to drill cutting dumping it is not seen that anything exceeds the quality standard from a radius of 50 m to 500 m from the discharge point. The increase in TSS concentration due to dumping of drilling mud and cuttings at 500 m from outfall in all seasons is far below the quality standard, namely from <0.02 mg/l to <2 mg/l.
STRATEGI PENGUATAN MUTU IKAN DALAM TRANSPORTASI DAN DISTRIBUSI IKAN DI AMBON Sampe Maruli; Palupi Damayanti; Akhmad Solihin; Nurdin Ahmadi
Coastal and Ocean Journal (COJ) Vol 7 No 1 (2023): COJ (Coastal and Ocean Journal)
Publisher : Pusat Kajian Sumberdaya Pesisir dan Lautan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/coj.v7i1.45360

Abstract

Mutu ikan merupakan masalah penting dalam menjamin keamanan pangan dan tingginya harga ikan. Namun penurunan mutu ikan terjadi mulai penangkapan hingga ke tujuan pasar/konsumen. Sebagai daerah produsen, Kota Ambon dihadapkan pada tantangan penurunan mutu ikan yang terjadi di semua simpul pelaku usaha perikanan. Penelitian ini bertujuan untuk memetakan alur transportasi dan distribusi pemasaran hasil perikanan serta isu permasalahannya yang berpotensi menurunkan mutu ikan dan merumuskan strategi terkait pengendalian mutu ikan di Kota Ambon. Hasil penelitian mengungkapkan bahwa pasokan ikan di Kota Ambon tidak hanya berasal dari nelayan di kota Ambon, akan tetapi juga berasal dari nelayan-nelayan sekitar yang menjadi penyangga industri perikanan di PPN Ambon. Berdasarkan hal tersebut, perlu dilakukan beberapa strategi, yaitu:: (a) pelaksanaan sosialisasi berkala; (b) pelaksanaan pemantauan berkala; (c) pelaksanaan pelatihan dan bimbingan teknis sistem rantai dingin; (d) kajian penurunan mutu ikan pada tiap simpul; (e) kerjasama multi pihak; (g) bantuan sarana rantai dingin; dan (h) pembangunan pabrik es. Kata Kunci: Mutu ikan, Keamanan pangan, Harga ikan, Pasokan ikan
PENDUGAAN PARAMETER POPULASI IKAN CAKALANG (Katsuwonus Pelamis) DI PERAIRAN SENDANGBIRU, JAWA TIMUR Afiyatus sholihah; Mennofatria Boer; Mulyono S Baskoro
Coastal and Ocean Journal (COJ) Vol 7 No 1 (2023): COJ (Coastal and Ocean Journal)
Publisher : Pusat Kajian Sumberdaya Pesisir dan Lautan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/coj.v7i1.42001

Abstract

Skipjack is the dominant fish caught in Sendangbiru waters. This study is pivotal as a basis for fisheries management in order to skipjack stocks can be used sustainably. The research aims to estimate the population parameters of skipjack tuna (Katsuwonus pelamis) including growth patterns, fish length distribution, growth parameters, mortality, and exploitation rate. Skipjack tuna samples were taken from the Pondokdadap fish landing site (TPI) from July to October 2019 using the purposive sample method. The total samples were 1431. The length weight data is processed using MS software. excel 2013 to find out the growth pattern. The length distribution data is processed with MS software. excel 2013 to determine the size of the dominant fish caught. The skipjack length frequency data was then processed using the FiSAT II program to estimate growth parameters, mortality and exploitation rates. The results showed the skipjack in Sendangbiru waters had a positive allometric growth pattern with the dominant fish size caught at 42 cmFL. Maximum length (L∞) of 87.65 cmFL and the growth rate coefficient (K) of 0.69 per year, t0 of -0.17 per year. The natural mortality (M) of 0.93 per year, fishing mortality (F) 1.25 per year and total mortality (Z) of 2.18 per year. Meanwhile, the exploitation rate (E) of skipjack tuna in Sendangbiru waters is estimated to be 0.57.
DINAMIKA TEMPORAL DAN SPASIAL FOSFAT(PO4-P) DAN NITRAT (NO3-N) SEBAGAI INDIKATOR KESUBURAN PERAIRAN DI TELUK JAKARTA Amanah Zakiah; Yonvitner; Ario Damar
Coastal and Ocean Journal (COJ) Vol 7 No 1 (2023): COJ (Coastal and Ocean Journal)
Publisher : Pusat Kajian Sumberdaya Pesisir dan Lautan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/coj.v7i1.49454

Abstract

Jakarta Bay is located on the north coast of Java Island and is the mouth of 13 major rivers in Jakarta, Bogor, Depok, Tangerang and Bekasi. Various activities that involve the use of waters, both bays and rivers, can cause a decrease in water quality and nutrient enrichment. One result of nutrient enrichment is an increase in nutrients such as phosphate and nitrate. This study aims to determine the pattern of spatial distribution of phosphate and nitrate concentrations as indicators of water fertility in Jakarta Bay. Water quality monitoring was carried out from 2012-2019 from 23 observation stations. The determination of 23 stations is based on the representation of the Jakarta Bay area into the coastal zone and the bay zone. Water fertility status based on phosphate nutrients is classified as mesotrophic with a spatial distribution pattern that is higher around the coast and lower as it approaches the mouth of the bay. Meanwhile, based on nutrient nitrate, it is classified as oligotrophic with a distribution that tends to be high on the beach and low near the mouth of the bay. Temporally, there is a significant difference in the concentration of phosphate and nitrate.
DNA BARCODING UNTUK VALIDASI SPESIES PAUS SPERMA (Physeter macrocephalus LINNAEUS, 1758) DARI PERAIRAN LAUT SAWU, NUSA TENGGARA TIMUR, INDONESIA Agus Alim Hakim; Endah Sri Rahayu; Ali Mashar; Nurlisa Alias Butet; Yusli Wardiatno; Mohammad Mukhlis Kamal
Coastal and Ocean Journal (COJ) Vol 7 No 1 (2023): COJ (Coastal and Ocean Journal)
Publisher : Pusat Kajian Sumberdaya Pesisir dan Lautan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/coj.v7i1.49702

Abstract

The sperm whale (Physeter macrocephalus) is a protected marine biota in Indonesia. Molecular identification of sperm whales from the Sawu Sea (East Nusa Tenggara, Indonesia) was carried out using the 16S rRNA gene. This study aims to validate the species of the sperm whale (Physeter macrocephalus) in Indonesia using the partial cytochrome oxidase subunit I (COI) gene. The specimens used were tissue specimens from laboratory collections taken from Sawu Sea waters in 2014. The three samples were validated as Physeter microcephalus with 100% similarity. The base composition is dominated by the base thymine (31.7–31.8%) with a GC content of 42.7–42.8%. The genetic distance for the same species was 0.0015, while the highest genetic distance for Orcaella brevirostris was 0.2128. Molecular identification using the 16S rRNA gene and COI has validated the species of a sperm whale (Physeter macrocephalus) in Indonesia so that this genetic data can be used as a basis for sperm whale resource management and conservation.
Indonesia's Concrete Efforts to Ensure Australia's Accountability for Marine Pollution Resulting from the Montara Oil Spill Latisha, Najwa; Syahda Mauldiyani; Retno Hariarti; Irwan Triadi
Coastal and Ocean Journal (COJ) Vol 8 No 2 (2024): COJ (Coastal and Ocean Journal)
Publisher : Pusat Kajian Sumberdaya Pesisir dan Lautan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/coj.v8i2.55481

Abstract

The marine pollution caused by the Montara oil spill in Australian waters has created serious challenges to the marine environment in Indonesian waters. This conflict has not been declared terminated until now due to the failure of Australia to exercise its responsibility under the provisions of UNCLOS 1982. The study aims to analyze the firm and concrete efforts that Indonesia can make to hold Australia accountable for the impact of such pollution, as well as the forms of accountability that Australia is supposed to take against Indonesia. This research uses normative legal methods, or library research, through legislative approaches and the study of the rule of law. The findings show that Indonesia can take a diplomatic approach, bring legal claims through international courts, and firmly acknowledge the challenges and economic pressures of withdrawing Australia's accountability. The responsibility of the Australian side should also be insisted on by Indonesia by acting in accordance with the provisions of international law, where there is compensation equal to the territory of Indonesia and the injured parties. Through diplomatic analysis, regional cooperation, and legal approaches, the study contributes to an understanding of the complexity of managing the impact of marine pollution at the international level and the importance of ensuring full accountability in order to preserve the global marine environment.
Konsentrasi dan Emisi Gas Karbondioksida (CO2) pada Sedimen Ekosistem Mangrove Desa Nania, Kota Ambon Dhandi; Tuahatu, Juliana W.; Krisye; Rahman
Coastal and Ocean Journal (COJ) Vol 8 No 1 (2024): COJ (Coastal and Ocean Journal)
Publisher : Pusat Kajian Sumberdaya Pesisir dan Lautan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/coj.v8i1.55723

Abstract

Mangrove ecosystem is a type of coastal ecosystem that has many benefits from both ecological, social and economic aspects. The role of mangroves in absorbing carbon reaches 965 tons C/ha. The ability to store carbon is four times more than other ecosystems. Besides absorbing and storing carbon, mangroves also release carbon through litter production. The production of mangrove litter will then experience decomposition resulting in a flux of greenhouse gases. One of the greenhouse gases that triggers climate change is carbon dioxide (CO2). The aim of this research was to determine the concentration and emission values of carbon dioxide (CO2) in the sediments of the mangrove ecosystem of Nania Village, Ambon City. Gas sampling using a syringe through a syringe mounted on a hood. Analysis of gas concentrations used the gas chromatography method. Sediment sampling is carried out using a small shovel on the surface of the substrate under the mangrove canopy. Sediment samples will be analyzed using a sieving process. The results showed that the average concentration of CO2 gas with the highest value in the sandy mud substrate with a value of 701.61 ppm and the lowest in the sand substrate with a value of 561.48 ppm. The largest CO2 gas emission in the mangrove ecosystem sediments of Nania Village was found in the sand sediment type of 75.0535 mg/m2/hour with an emission value, and the lowest was found in mud sediments, namely 30.1899 mg/m2/hour.
Performance Enhancement of Microbial Fuel Cells from Fishery Wastewater Using Boost Converter Device Ibrahim, Bustami; Uju; Subrata, I Dewa Made; Ramadhan, Rahmat Agung
Coastal and Ocean Journal (COJ) Vol 8 No 2 (2024): COJ (Coastal and Ocean Journal)
Publisher : Pusat Kajian Sumberdaya Pesisir dan Lautan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/coj.v8i2.55742

Abstract

Electricity is a basic necessity in everyday life. Fossil energy is typically used to generate electricity, and non-renewable energy sources will eventually be depleted without innovation in the form of renewable energy. Liquid waste from fisheries is a commodity that can generate electricity through Microbial Fuel Cell (MFC) systems. However, the electricity generated is relatively small. The research aimed to increase the electrical voltage from fish curing waste in a Microbial Fuel Cell system by using an additional boost converter circuit. The research was conducted using 5 MFC systems connected in series and connected to a boost converter device. The electrical values of the MFC system with the boost converter circuit were a voltage of 12.13±0.87 V, a current of 0.86±0.20 mA, and a power of 10.50±3.11 mW. Meanwhile, without the boost converter circuit, the voltage value was 2.24±0.26 volts, the current was 0.17±0.03 mA, and the power was 0.38±0.11 mW. The increase in electricity in the MFC system indicated that the boost converter circuit functioned properly. The MFC system was able to reduce BOD, COD, and TAN values.
The Urban Coastal Settlement Management Strategy of Bumi Waras Sub-District, Bandar Lampung Putri, Septi Malidda Eka; Wahono, Endro P.; Reza, Muhammad; Azkia, Lana Izzul
Coastal and Ocean Journal (COJ) Vol 8 No 2 (2024): COJ (Coastal and Ocean Journal)
Publisher : Pusat Kajian Sumberdaya Pesisir dan Lautan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/coj.v8i2.55754

Abstract

Indonesia's extensive coastal areas face significant environmental and social challenges, particularly in densely populated regions like Bumi Waras Sub-district, emphasizing the urgent need for integrated coastal management to ensure sustainable development and improve community living conditions. This study aims to ascertain the future course of urban coastal settlement management measures. The study was conducted in Bandar Lampung's Bumi Waras Sub-District's coastal region, as the second-highest population sub-district in Bandar Lampung City. The samplings were chosen purposively by expert assessments and the community. Direct interviews were used to collect data, while the SWOT method was used to analyze the result. The results of the Internal Factors Analysis Summary matrix score of 3.167 and the External Factors Analysis Summary matrix at 3.153, indicating fairly good growth conditions. The highest priority strategy, 4.028, was the "weaknesses and threats" (WT) parameter, highlighting the need to address limited community participation in planning, implementing, and supervising coastal area management, as well as the lack of private sector involvement. Therefore, the recommended strategy is to enhance human resource capacity through socialization and counseling on urban coastal settlement management. Additionally, efforts should be directed toward optimizing the utilization of existing facilities and infrastructure to reduce environmental damage and promote sustainable coastal area management.
Suitability and Carrying Capacity Analysis of Marine Tourism in Merak Kecil Island Putri, Amelia Herdani; Sasongko, Agung Setyo; Cahyadi, Ferry Dwi; Prasetiyo, Himawan
Coastal and Ocean Journal (COJ) Vol 8 No 2 (2024): COJ (Coastal and Ocean Journal)
Publisher : Pusat Kajian Sumberdaya Pesisir dan Lautan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/coj.v8i2.56721

Abstract

Merak Kecil Island is an emerging marine tourism destination in Cilegon City, encompassing an area of 0.76 hectares, located in the waters of the Sunda Strait within Pulomerak District. This research was conducted over a one-month period, from January to February 2024, involving three sampling stations. The study aimed to analyze tourism suitability parameters, calculate the area's carrying capacity, and develop strategies for ecotourism development on Merak Kecil Island, Cilegon City. Data collection was carried out through field observations and measurements of regional parameters, including environmental, physical, and chemical data. These were supplemented by data analysis utilizing the Tourism Suitability Index (TSI), Carrying Capacity (CC) calculations, and a SWOT analysis derived from interviews conducted via questionnaires. The results indicated that the Tourism Suitability Index for recreational activities was 86% at Station 1, 84% at Station 2, and 78% at Station 3, all of which fall under the category of "Very Suitable" (S1). The calculated carrying capacity of Merak Kecil Island was approximately 106 visitors per day, ensuring a balance between visitor comfort and the island's ecological preservation. Furthermore, 15 strategic recommendations were formulated through a SWOT matrix analysis.

Page 7 of 8 | Total Record : 80

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