https://e-journal.unair.ac.id/JMCS <p>The Journal of Marine and Coastal Science (JMCS) with registered number <a href="http://issn.pdii.lipi.go.id/issn.cgi?daftar&amp;1466406466&amp;1&amp;&amp;" target="_blank">ISSN 2528-0678 (online)</a> and <a href="http://issn.pdii.lipi.go.id/issn.cgi?daftar&amp;1339390622&amp;1&amp;&amp;" target="_blank">ISSN 2301-6159 (printed)</a> is a scientific open access journal published by the Faculty of Fisheries and Marine, Airlangga University. JMCS was founded in 2002 which focuses on scientific publications in the fields of fisheries and marine science, covering seafood nutrition, marine microbiology, marine biotechnology, coastal management, and marine biodiversity research. Our journal vision to become a media of research results dissemination of scientific work of various groups, academics, practitioners and government agencies. Open Journal Systems (OJS) has been applied to all processes in the JMCS scientific journals. JMCS scientific journals are published 3 times a year (February, June, and September) in Indonesian / English, each edition consisting of 40-60 pages, containing between 5-7 scientific articles on research articles and short communications.</p><p>For an author, please read these journal guidelines. If the manuscript submitted is not appropriate with the guidelines or written in a different format, it will <strong>BE REJECTED</strong> by the editors before further reviewed. All the articles received will be reviewed by peer-reviewers with double-blind methods.</p><p> </p><p>Journal of Marine and Coastal Science (JMCS) terdaftar di <a href="http://u.lipi.go.id/1473235283" target="_blank">ISSN 2528-0678</a> (online) and <a href="http://u.lipi.go.id/1180427475" target="_blank">ISSN 2301-6159</a> (cetak) adalah jurnal akses terbuka ilmiah yang diterbitkan oleh Fakultas Perikanan dan Kelautan, Universitas Airlangga. JMCS didirikan pada tahun 2002 yang memfokuskan publikasi ilmiah di bidang perikanan dan ilmu kelautan, yang meliputi gizi makanan laut, mikrobiologi laut, bioteknologi kelautan, pengelolaan pesisir, dan penelitian keanekaragaman hayati laut. Visi JMCS yaitu menjadi media penyebaran hasil penelitian karya ilmiah berbagai kelompok, akademisi, praktisi, dan lembaga pemerintah. Open Journal Systems (OJS) telah diterapkan untuk semua proses dalam Jurnal ilmiah JMCS. Jurnal ilmiah JMCS diterbitkan 3 kali dalam setahun (bulan Februari, Juni, dan September) dengan berbahasa Indonesia/bahasa Inggris yang setiap edisi terdiri dari 40-60 halaman, berisi antara 5-7 artikel ilmiah tentang artikel penelitian dan komunikasi singkat.</p><p>Untuk penulis, silahkan dibaca pedoman penulisan. Jika naskah yang dikirimkan tidak sesuai dengan pedoman atau ditulis dalam format yang berbeda, naskah tersebut akan DITOLAK oleh editor sebelum ditinjau lebih lanjut. Semua artikel yang diterima akan ditinjau oleh peer-reviewer dengan metode double-blind.</p> Universitas Airlangga en-US Journal of Marine and Coastal Science 2528-0678 https://e-journal.unair.ac.id/JMCS/article/view/33821 Chitosan is a biopolymer that can be extracted from crustaceans, such as shrimp shells. Chitosan is widely used in various fields, such as pharmaceuticals, food, and cosmetics because it is biodegradable, non-toxic, and has antibacterial activity. Nanochitosan is a dosage form based on nanotechnology which has more reactive properties. The purpose of this study was to characterize chitosan and nanochitosan and evaluate the effectiveness of nanochitosan as an antibacterial in hand sanitizer. The tests carried out included analysis of the functional group of chitosan with FTIR, particle size analysis with particle size analyzer, morphological analysis of nanochitosan with SEM, and analysis of the effectiveness of hand sanitizers. The test chitosan used had a degree of deacetylation of 85.94%. The particle size distribution of nanochitosan was 140.94 nm with a polydispersion intensity (PDI) of 0.5830. The results of the antibacterial effectiveness test of nanochitosan as a hand sanitizer showed that the higher the concentration of nanochitosan used, the total bacterial colonies would decrease. The concentration of 2000 ppm nanochitosan can reduce 93.4% of bacterial colonies on probandus hands, and this activity is known to be not significantly different from commercial hand sanitizers. Safrina Dyah Hardiningtyas Dona Fradilla Bahri Pipih Suptijah Copyright (c) 2022 Journal of Marine and Coastal Science http://creativecommons.org/licenses/by-nc-sa/4.0 2022-02-21 2022-02-21 11 1 1 8 10.20473/jmcs.v11i1.33821 https://e-journal.unair.ac.id/JMCS/article/view/33823 Hairtail fish (Trichiurus savala) is potential to have a rapid deterioration due to the high water and protein content in the body of the fish. One of the efforts to prevent or slow down the deterioration of layur fish is by freezing treatment. The freezing process also cannot be completely avoided from the emergence of potential hazards, therefore a way to prevent or suppress potential hazards is needed by applying the Critical Control Point (CCP). The descriptive method with data collection including primary and secondary data was used in this study. The freezing process of layur fish at PT Pan Putra Samudra starts from receiving, sorting, weighting, labelling, washing, wrapping with plastic and arranging in cartons, freezing, packaging, and frozen storage. The stages determined as CCP in the freezing of layur fish are in the sorting stage. At the sorting stage, quality checking is performed including organoleptic and microbiological tests. It also checks physical hazards such as hooks and nets. The sorting stage is determined as CCP because in the next stage it cannot prevent or reduce the potential danger that exists in fish. Fish that have gone through quality checking and exceeding the threshold will be put in a special fish reject basket. Muhammad Dzaky Eka Saputra Copyright (c) 2022 Journal of Marine and Coastal Science http://creativecommons.org/licenses/by-nc-sa/4.0 2022-02-21 2022-02-21 11 1 9 14 10.20473/jmcs.v11i1.33823 https://e-journal.unair.ac.id/JMCS/article/view/33824 Eel (Anguilla sp.) is a fish that is classified as having a high economic value, with the level of distribution in almost all of Indonesia. The Timang Tideng River is one of the rivers located in the village of Kamaifui, Alor Regency, but until now, there has been no scientific report on the distribution of eel (Anguilla sp.) in the Timang Tideng River, Alor Regency, NTT. This study aims to determine the type and size of eel found in the Timang Tideng River. The research was conducted from March to April 2021 at three observation stations. Eel fishing is done at night considering its nocturnal nature. The fishing gear used is fishing rods and chicken stomachs as bait. Measurements of physical and chemical parameters of the waters were carried out simultaneously during the fishing process including temperature, pH, and current speed. The results showed that there were two types of eel in the Timang Tideng River, namely A. marmorata as many as 24 individuals and A. celebesensis as many as 1 individual. The eels found were in the yellow eel phase, with a total length range of 40-72 cm and a total weight ranging from 126-994 g. Lora Sisilia Malailehi Ade Y.H Lukas Priyo Santoso Copyright (c) 2022 Journal of Marine and Coastal Science http://creativecommons.org/licenses/by-nc-sa/4.0 2022-02-21 2022-02-21 11 1 15 20 10.20473/jmcs.v11i1.33824 https://e-journal.unair.ac.id/JMCS/article/view/33825 Green mussel (Perna viridis) is a fishery food that is often consumed by the community because the price is relatively affordable. This animal has the potential to be used because it has a large population, but one of the problems in Indonesian waters, especially Kenjeran Beach, is that it contains Pb metal. Consuming green mussels with Pb levels will interfere with body health, so it is necessary to take action to reduce the Pb metal content in green mussels, one of which is using citric acid. The purpose of this study was to determine the effect of soaking green mussel meat in citric acid with different concentrations on the reduction of Pb heavy metal levels. This research is a laboratory experimental with a Completely Randomized Design (CRD) consisting of 4 different treatments of immersion concentration in citric acid (0 , 0.21 , 0.25 and 0.29 M). The results showed that the immersion of green mussel meat in citric acid with concentrations of 0.21 , 0.25 and 0.29 M had a significant effect on the reduction of heavy metal lead (Pb) after immersion in citric acid at a concentration of 0.29 M is 0.1120 ppm, 0.25 M is 0.1167 ppm and 0.21 M is 0.1160 ppm. Soaking green mussels in citric acid with different concentrations did not affect the yield value of green mussel meat. Ernawati Ernawati Nina Nurmalia Dewi Juni Triastuti Copyright (c) 2022 Journal of Marine and Coastal Science http://creativecommons.org/licenses/by-nc-sa/4.0 2022-02-21 2022-02-21 11 1 21 28 10.20473/jmcs.v11i1.33825 https://e-journal.unair.ac.id/JMCS/article/view/33826 Pangkil is a small island in Indonesia with huge fisheries production where the majority of citizens' livelihoods are fisherman. The decline of fisheries catch production has led to aquaculture activity increasing year by year. Environmental conditions are the most important consideration for marine aquaculture sites. The aims of the present study are to estimation of the carrying capacity in Pangkil island water for marine aquaculture. The study was carried out in January 2020 at 30 locations. To describe the environmental condition, 30 samples were collected to analyse the physical, chemical, and biological parameters. To estimate the carrying capacity, suitability index was applied. The result showed that 57.13% of environmental conditions have very suitable for marine aquaculture (sea cage) in Pangkil Island, while 42.87% is only quite appropriate. Based on the result, Pangkil Island water has high potential for marine aquaculture in the future. Dedy Kurniawan Wahyudin Wahyudin Dwi Septiani Aidil Fadli Ilhamdy Jumsurizal Jumsurizal Aulia Rahman Ulia Fahmi T Ersti Yulikasari Copyright (c) 2022 Journal of Marine and Coastal Science http://creativecommons.org/licenses/by-nc-sa/4.0 2022-02-21 2022-02-21 11 1 29 39 10.20473/jmcs.v11i1.33826