AQUATIC SCIENCE & MANAGEMENT
https://ejournal.unsrat.ac.id/v3/index.php/jasm
<p><strong>DESCRIPTION: </strong><strong><a href="https://ejournal.unsrat.ac.id/index.php/jasm/index" target="_self">AQUATIC SCIENCE & 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 & Marine Science, Sam Ratulangi University, Manado, North Sulawesi, INDONESIA).</p>en-US<p><strong>COPYRIGHT & LICENSES:</strong></p> <p>Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under an <a title="License" href="https://creativecommons.org/licenses/by/4.0/" target="_blank" rel="noopener">Attribution 4.0 International (CC BY 4.0)</a> that allows others to share — copy and redistribute the material in any medium or format — and adapt — remix, transform, and build upon the material for any purpose, even commercially — with an acknowledgment of the work's authorship and initial publication in this journal.</p> <p><a href="http://creativecommons.org/licenses/by/4.0/" rel="license"><img src="https://i.creativecommons.org/l/by/4.0/80x15.png" alt="Creative Commons License" /></a></p> <p>This work is licensed under a <a href="http://creativecommons.org/licenses/by/4.0/" rel="license">Creative Commons Attribution 4.0 International License</a>.</p>lasut.markus@unsrat.ac.id (Prof. Dr. Markus T Lasut)rodrickjuraman2@gmail.com (Stefanus R. Juraman)Thu, 31 Oct 2024 00:00:00 +0800OJS 3.3.0.12http://blogs.law.harvard.edu/tech/rss60Assessment of the pollution status of the coastal waters of Kotabunan Village, East Bolaang Mongondow Regency (North Sulawesi Province, Indonesia) using the pollution index (IP)
https://ejournal.unsrat.ac.id/v3/index.php/jasm/article/view/58395
<p>This study aims to assess the pollution status of the coastal waters of Kotabunan Village, East Bolaang Mongondow Regency, North Sulawesi Province, Indonesia, using the pollution index (PI). The water quality parameters monitored include temperature, Total Dissolved Solid (TDS), pH, Dissolved Oxygen (DO), and salinity. Analysis of water quality data was compared with class III water quality standards based on Government Regulation Number 22 of 2021. The results of the water quality analysis showed that the temperature ranged from 28.4 - 31.5 0C, TDS ranged from 2100 - 3120 mg/L, pH ranged from 7.93 - 8.24, DO ranged from 2.8 - 6.2 mg/L, and salinity ranged from 18.5 - 34 ppt. Based on these facts, the pollution index of these waters is 2.4 - 6.2 which indicates a light-moderate pollution status.</p>Dias Asthisa, Rahmi Valina, Zulkarnain Musada, Satrio Ilahude, Inka Lesi
Copyright (c) 2024 Dias Asthisa, Rahmi Valina, Zulkarnain Musada, Satrio Ilahude, Inka Lesi
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https://ejournal.unsrat.ac.id/v3/index.php/jasm/article/view/58395Thu, 31 Oct 2024 00:00:00 +0800Macroalgae community structure on Kumeke Island, East Bolaang Mongondow Regency, North Sulawesi Province, Indonesia
https://ejournal.unsrat.ac.id/v3/index.php/jasm/article/view/58391
<p>Macroalgae is one of the potential biological resources in Indonesian waters that has many important roles, from an ecological to an economic perspective. The aim of this research is to analyse the structure of macroalgae communities found in the waters of Kumeke Island, East Bolaang Mongondow Regency, Indonesia. The method used in this research is a survey with descriptive data analysis. Determining the sampling station point is carried out by purposive sampling, namely by selecting an area based on the presence of macroalgae. Macroalgae sampling used the line transect method with a quadratic sampling technique with a size of 1.5 x 1.5 m. The research results showed that the types of macroalgae found were 11 species, consisting of 3 species of Chlorophyta, 4 species of Phaeophyta, and 4 species of Rhodophyta. The density of macroalgae species is dominated by Rhodophyta (38%), Phaeophyta (31%), and Chlorophyta (30%). The total density of macroalgae is 9–46 ind/m². The diversity index ranges from 1.154 to 2.234 in the medium category, the uniformity index ranges from 0.481 to 0.932 in the high category, and the dominance index ranges from 0.114 to 0.338 in the low category.</p>Rahmi Valina, Dias Asthisa, Novelia M.A. Pangalila, Farhan A. Timumu, Fitra M.A. Kasim
Copyright (c) 2024 Rahmi Valina, Dias Asthisa, Novelia M.A. Pangalila, Farhan A. Timumu, Fitra M.A. Kasim
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https://ejournal.unsrat.ac.id/v3/index.php/jasm/article/view/58391Thu, 31 Oct 2024 00:00:00 +0800Business performance evaluation of tuna handlines operated in fish aggregating device areas: a case study in Bone Regency, South Sulawesi Province, Indonesia
https://ejournal.unsrat.ac.id/v3/index.php/jasm/article/view/59462
<p>The difference in fishermen's catches each year tends to fluctuate at different fishing locations; this is due to the still low efficiency and productivity of fishing efforts. The purpose of the study was to evaluate the performance of tuna handline businesses operated in fish aggregating device areas at fishing grounds in FMAs 713 and 714. The results show that in the period of 2020-2023, the development of catch rates each year fluctuated, while the average value of catch rates for each vessel based on the highest season occurred in the East Season and the lowest in the Transition Season I. Likewise, the average catch rate based on the time of the month of capture is highest in June, July, and November. The results of the analysis of production factors that influence the catch are the time of the month of fishing, fuel use, ice use, and number of crew members, while the factors of trip length, ship GT, and engine capacity do not have a direct influence. The information from this evaluation is very much needed by fishermen and stakeholders to optimise the performance of tuna handlines in fish-aggregating device areas.</p>Peggy Pontoh, Arham Rumpa , Asia, Anang Rahmat Kun, Yaser Krisnafi , Muhidin Syamsuddin , Rasdam, Muh. Kasim , Muhammad Ikhsan Zulfatan Runtukahu, A. Riza Baroqi, Putra Satria Timur
Copyright (c) 2024 Peggy Pontoh, Arham Rumpa , Asia, Anang Rahmat Kun, Yaser Krisnafi , Muhidin Syamsuddin , Rasdam, Muh. Kasim , Muhammad Ikhsan Zulfatan Runtukahu, A. Riza Baroqi, Putra Satria Timur
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https://ejournal.unsrat.ac.id/v3/index.php/jasm/article/view/59462Thu, 31 Oct 2024 00:00:00 +0800Dynamics of fish catch results from handline fishing gear and sustainable solutions for tuna fisheries in a rumpon area
https://ejournal.unsrat.ac.id/v3/index.php/jasm/article/view/59789
<p>Rumpon, as a fish-aggregating device, has long been used by tuna handline fishermen in Bone Bay, South Sulawesi Province, Indonesia. Information on the characteristics of tuna handline fishing in the area is very limited and is very much needed as study material for tuna fishing strategies and fisheries policies. This research aims to understand the results of handline catches and sustainable solutions for tuna fisheries in rumpon areas. The data used is the result of observations using 19 ships based at PPI Lonrae and data collection for 5 years (2018-2022). The results show that the composition of the main catch is dominated by yellowfin tuna (Thunnus albacares), bigeye tuna (Thunnus obesus), and skipjack tuna (Katsuwonus pelamis). In general, the size of fish that are not suitable for catching for the yellowfin tuna, bigeye tuna, and skipjack tuna, consecutively, is 54.0%, 45.1%, and 31.9%. This finding further clarifies that the percentage of tuna and skipjack tuna that are not suitable for catching is still very large. Continuous and large-scale fishing of juvenile tuna could cause fish resources to continue to decline in the future. Technically, what fishermen need to understand is, in addition to the strategy of lowering fishing gear deeper, the time of fishing and the type of bait used.</p>Muh. Soghirun, Arham Rumpa, Nurdin Kasim, Rafi Ohorella, Peggy Pontoh, A. Riza Baroqi, Putra Satria Timur , Muh. Ikhsan Zulfatan Runtukahu, Novita Ayu Wulandari
Copyright (c) 2024 Muh. Soghirun, Arham Rumpa, Nurdin Kasim, Rafi Ohorella, Peggy Pontoh, A. Riza Baroqi, Putra Satria Timur , Muh. Ikhsan Zulfatan Runtukahu, Novita Ayu Wulandari
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https://ejournal.unsrat.ac.id/v3/index.php/jasm/article/view/59789Thu, 31 Oct 2024 00:00:00 +0800Description of symbiont-bearing large benthic foraminifera at Lihaga beach of Likupang waters, northeast Sulawesi Island, Indonesia
https://ejournal.unsrat.ac.id/v3/index.php/jasm/article/view/60610
<p>Foraminifera have been used as significant and important bioindicators to assess the health of coral reef ecosystems. In using these organisms as bioindicators, it is important to recognise their morphological aspects. This study provides an overview of symbiont-bearing large benthic foraminifera marine organisms found on the coast of Lihaga Island, Likupang Waters, northeastern Sulawesi Island, Indonesia. The purpose of this study was to analyse and document the presence of five genera of foraminifera: Amphistegina d'Orbigny, 1826; Amphisorus Ehrenberg, 1839; Calcarina d'Orbigny, 1826; Heterostegina d'Orbigny, 1826; and Peneroplis Montfort, 1808. By collecting and analysing these genera, this study provides insight into the biodiversity of the marine environment of Liaga Island. These findings could improve understanding of the role of these symbiont-bearing foraminifera in maintaining the health and resilience of coral reef systems in the region. The data collected could also serve as a baseline for future environmental monitoring and research initiatives.</p>Veibe Warouw, Natalie D.C. Rumampuk, Indri S. Manembu, Roosa C. Kalebos, Markus T. Lasut
Copyright (c) 2024 Veibe Warouw, Natalie D.C. Rumampuk, Indri S. Manembu, Roosa C. Kalebos, Markus T. Lasut
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https://ejournal.unsrat.ac.id/v3/index.php/jasm/article/view/60610Thu, 31 Oct 2024 00:00:00 +0800