https://ejournal.unsrat.ac.id/v3/index.php/jasm/issue/feed 2024-05-12T13:53:44+08:00 Prof. Dr. Markus T Lasut lasut.markus@unsrat.ac.id Open Journal Systems <p><strong>DESCRIPTION: </strong><strong><a href="https://ejournal.unsrat.ac.id/index.php/jasm/index" target="_self">AQUATIC SCIENCE &amp; MANAGEMENT</a></strong> <strong>(JASM/ <em>Aquat.Sci.Manage.</em></strong><span class="hps"><strong>)</strong> is a double blind peer-reviewed journal that publishes scientific </span><span class="hps">articles </span>of original research <span class="hps">based on </span><span class="hps">in-depth scientific </span><span class="hps">study </span><span class="hps">in the </span><span class="hps">field of aquatic science and management, covering </span><span class="hps">aspects of limnology, oceanography, aquatic ecotoxicology, geomorphology, fisheries, and coastal management, as well as interactions among them.</span></p> <p>This journal is accredited by Minister of Education, Cultural, Research, and Technology of Republic Indonesia through Directorate General of Higher Education, Research, and Technology, <a title="SK Akreditasi 2022" href="https://drive.google.com/file/d/1F0sw4BhBNxkgTIxhCOkVTFW6JSEKxSod/view?usp=share_link" target="_blank" rel="noopener"><em>No. 230/E/KPT/2022</em></a> (December 30, 2022), as Ranking 3 (<a title="SINTA" href="https://sinta.kemdikbud.go.id/journals/profile/5562#!" target="_blank" rel="noopener"><strong>SINTA 3</strong></a>).</p> <p>This journal is <span class="hps">published </span>biannually <span class="hps">in </span><span class="hps">the regular editions</span><span class="hps"> </span><span class="hps">(</span>April and October) and accepts manuscripts in <strong>Bahasa Indonesia</strong> and <strong>English</strong>. Since 2017, JASM has only published manuscripts through online media (<a title="ISSN" href="http://u.lipi.go.id/1360292192" target="_blank" rel="noopener"><strong>e-ISSN 2337-5000</strong></a>) using the Open Journal System (OJS). To know further about this journal, please visit its history <em><a title="History of JASM" href="https://ejournal.unsrat.ac.id/v3/index.php/jasm/journal-history" target="_blank" rel="noopener">here</a>.</em></p> <p><strong>EDITOR-IN-CHIEF:</strong> <a title="SINTA" href="https://sinta.kemdikbud.go.id/authors/profile/5997198" target="_blank" rel="noopener">Prof. Dr. Markus T. Lasut, M.Sc.</a> (Master Program of Aquatic Sciences, Faculty of Fisheries &amp; Marine Science, Sam Ratulangi University, Manado, North Sulawesi, INDONESIA).</p> https://ejournal.unsrat.ac.id/v3/index.php/jasm/article/view/54930 2024-04-09T14:01:13+08:00 Noni Noviana noninoviana52@gmail.com Henny Johan hennyjohan@unib.ac.id Afrizal Mayub noninoviana52@gmail.com Nurhamidah noninoviana52@gmail.com M. Lutfhi Firdaus ml.firdaus@gmail.com

<p>Cukuh Raya Beach coastal water is potentially polluted by organic materials from shrimp ponds. The purpose of this study was to determine the content of organic materials (ammonia [NH₃], nitrate [NO₃], phosphate [PO₄], and fatty oil) discharged into the coastal waters and to examine the role of eco-enzymes in reducing the organic material levels. Two points of sampling were selected, i.e., 10 and 100 m from the pipeline outfall discharge of shrimp ponds. An experiment was carried out to compare the level of organic content before and after the eco-enzyme solutions were given. Sampling and technique analysis of seawater were done following the Indonesian National Standards. The data were analysed using the Indonesian quality standards for marine biota and the pollution index. The results showed that seawater samples from the coast contained organic waste, with the highest levels at 10 m from the outfall. The level of organic content decreased after the addition of eco-enzyme solutions. The conclusion is that the organic materials (ammonia, nitrate, phosphate, and fatty oil) were found in water samples in the waters of Cukuh Raya Beach and were moderately polluted by ammonia (NH₃). The addition of an eco-enzyme solution can reduce the concentration of organic materials.</p>

2024-04-30T00:00:00+08:00 Copyright (c) 2024 Noni Noviana, Henny Johan, Afrizal Mayub, Nurhamidah, M. Lutfhi Firdaus Firdaus https://ejournal.unsrat.ac.id/v3/index.php/jasm/article/view/55445 2024-05-12T13:53:44+08:00 Niken Kusumawardani nikenkusumawardani18@gmail.com Rignolda Djamaluddin rignolda@unsrat.ac.id Ping Astony Angmalisang pingastony@unsrat.ac.id Lusia Manu manulusia@unsrat.ac.id Wilmy Etwil Pelle wilmypelle@unsrat.ac.id

<p>Understanding the dynamics of surface currents in the Bangka Strait is crucial for various maritime and coastal activities. This strait connects Likupang, a super-priority tourism destination, with other islands in North Sulawesi. These activities include navigation safety, inter-island transportation, fisheries, search and rescue operations, and marine pollution control. This study investigated the characteristics of currents in the strait using a hydrodynamic model called Delft3D. The result revealed that the currents exhibit a tidal pattern, with dominant westward flow during floods and eastward flow during ebb. Maximum sea current velocity during spring tide in the second transition monsoon occurred in September 2022, with an average speed of 102.67 cm/s. Current ellipse analysis confirmed the tidal type of the currents.</p>

2024-04-30T00:00:00+08:00 Copyright (c) 2024 Niken Kusumawardani, Rignolda Djamaluddin, Ping Astony Angmalisang, Lusia Manu, Wilmy Etwil Pelle