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Journal : Jurnal Ilmu Kelautan Spermonde

ESTIMATING SEASONAL PATTERNS OF FISHING FOR ANCHOVIES (Stolephorus Sp) LANDED AT PPI PAOTERE, MAKASSAR, SOUTH SULAWESI: AN APPROACH TO FISHING BUSINESS EFFICIENCY Ridwan, Muhammad; Muhiddin, Amir Hamzah; Zainuddin, Mukti
Jurnal Ilmu Kelautan SPERMONDE VOLUME 10 NUMBER 2, 2024
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v10i2.30499

Abstract

The exploitation level of fish resources should be based on effectiveness, efficiency and business sustainability. One of the efforts to implement these three aspects is to understand the seasonal pattern or the best time to catch the fish target. The aim of this research was to estimate the pattern of the anchovy fishing season based on production data landed at PPI Paotere Makassar, South Sulawesi. Data is collected from the PPI and analyzed using the moving average techniques. Results showed that the seasonal pattern of anchovy fishing is estimated to increase in the transition season to the eastern season (IMP > 100%) and reach a peak in September (IMP = 134.74%). Descriptively, the fishing season, especially the peak season, was thought to occur because these fish are probably associated with optimum conditions for oceanographic parameters such as sea surface temperature, chlorophyll-a concentrations and surface current conditions. Information on anchovy fishing season patterns is really needed by marine fisheries managers, both government and private, in managing efforts to exploit fish resources wisely and sustainably.
SPATIO-TEMPORAL THERMAL FRONTS DISTRIBUTION DURING JANUARY-DECEMBER 2018 IN THE MAKASSAR STRAIT: AN IMPORTANT IMPLICATION FOR PELAGIC FISHERIES Zainuddin, Mukti; Mallawa, Achmar; Safruddin, Safruddin; Farhum, St. Aisjah; Hidayat, Rachmat; Sahni Putri, Andi Rani; Ridwan, Muhammad
Jurnal Ilmu Kelautan SPERMONDE VOLUME 6 NUMBER 1, 2020
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v6i1.9899

Abstract

Makassar Strait has been identified as an area of interesting studies for marine science and operational fisheries. It provides the unique ocean structures such as topographic feature, the main path of the Indonesia Throughflow (ITF) and dynamics of thermal fronts.  The aims of this study were to map the dynamic spatial and temporal of the thermal fronts, and to describe their implications to the pelagic fisheries. We used satellite data of sea surface temperature (SST) for the period of January-December 2018 with spatial and temporal resolutions of 4 km and monthly, respectively. For fishery data, we used sampling data of skipjack tuna fishing ground distributions in October and December 2018.  Thermal fronts throughout the year were estimated using a Single Image Edge Detection (SIED) algorithm and the available fishing ground data were overlain on the SST front map.  The results showed that the spatial distributions of thermal fronts along Makassar Strait tended to be different every month. However, the thermal fronts were consistently detected near the upwelling area from June to September. Skipjack tuna fishing grounds associated with fish aggregating devices (FADs) developed in the northern area of upwelling in October. Two month later, the FADs and free swimming skipjack fishing grounds again well formed around the same location. It implies that the formation of the thermal fronts after upwelling contributes the positive effect on development of pelagic fishery especially skipjack in Makassar Strait.
ON THE RELATIONSHIP BETWEEN AREA OF UPWELLING AND POTENTIAL FISHING ZONE IN MAKASSAR STRAIT Novia elvianti; Zainuddin, Mukti; Safruddin; Muhiddin, Amir Hamzah
Jurnal Ilmu Kelautan SPERMONDE VOLUME 7 NUMBER 2, 2021
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v7i2.13962

Abstract

This study aims to describe the relationship between the upwelling area and the ZPPI area of ​​skipjack tuna using the Generalized Additive Model (GAM) method and to map out the distribution pattern of skipjack in Barru waters, Makassar Strait. The research was conducted in November and December 2020, located in Barru waters, Makassar Strait. The research method used two methods by collecting primary data in the form of catches by following the purse seine fishing operation in Barru and secondary data in the form of satellite imagery data on sea surface temperature and chlorophyll-a. The data were analyzed using the GAM and upwelling area analysis. The upwelling area was obtained from the combination of the referred values of the two parameters. The results showed that sea surface temperature parameters had a significant effect on the catch of skipjack tuna with favored range of 28.5 - 29.7 oC.  Preferred chlorophyll-a ranged from 0.15 to 0.23 mg m-3. We found that the upwelling event in the Flores sea does not have a direct effect on the distribution pattern of skipjack tuna, there is probably a time lag required after upwelling in which in turn has an impact on the distribution of skipjack tuna in the southern Malassar Strait. Keywords: skipjack distribution, Makassar Strait, upwelling area, Flores Sea, potential fishing zone area
ASSESSING DISTRIBUTION PATTERN FOR SKIPJACK TUNA IN BONE GULF, INDONESIA DURING JANUARY-JUNE Zainuddin, Mukti; Ridwan, Muhammad; Muhiddin, Amir Hamzah
Jurnal Ilmu Kelautan SPERMONDE VOLUME 8 NUMBER 1, 2022
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v8i1.20799

Abstract

Satellite remote sensing provides systematically important information on oceanographic signatures. Sea surface temperature (SST) and chlorophyll-a concentration (Chl-a) obtained from Aqua/ Moderate Resolution Imaging Spectro-radiometer (MODIS) data together with skipjack fishing data during January-June were applied to assess the distribution pattern of skipjack tuna in the Bone Gulf, Indonesia. Geographic information system techniques were employed to map out the potential fishing zone generated from the Cobb Douglass model. The fish distribution pattern was produced by the movement of the Gravity Center of the potential fishing ground. Results expressed that the most potential catch per unit efforts (fish/trip) associated with the areas where a combination of optimum SST and chlorophyll-a concentration ranged was found. The center of skipjack potential fishing zones developed in January-February along with the western regions in the Bone Gulf and moved to the northern side during March and April, and subsequently migrated to the south in May –June. We found that skipjack tuna showed a clockwise movement pattern throughout the Bone Gulf during the first semester period (January-June). Therefore, the potential fishing zones suggest corresponding to the movement of skipjack concentration, which may link with prey upon by skipjack.
Co-Authors . Safruddin . Sudirman 1 Achmar Mallawa, 1 1 Safruddin, 1 2 Faisal Amir, 2 3 Chair Rani, 3 Abudarda, Andi Risda Fitrianti Achmar Mallawa Achmar Mallawa Adi Adi Jufri, Adi Adi Jufri Adi Jufri, Adi Ahmad Rezha Oktari Aisjah Farhum Aisyah Farhum Aldri Frinaldi Alfa F.P Nelwan Alfa FP. Nelwan Alfa Nelwan Alfa Nelwan Amir Hamzah Muhiddin Andi Assir Marimba Andi Marimba Andi Rani Sahni Putri Andi Rani Sahni Putri Anggerini Anggreini, Anggerini Angraeni Angraeni Angraeni Anshar Anshar Amran, Anshar Asuhadi, Sunarwan Baso Aswar Chair Rani Dian Sutono Fadhil Moh Fauzan Fadli Yunus Faisal Amir Joeharnani Tresnati John Ch Karuwal John Ch Karuwal, John Ch Katsuya Saitoh Kumala Dewi, Yashinta M Anshar Amran M Anshar Amran, M Anshar M Hajar M. Banda Selamat M. Banda Selamat M. Banda Selamat, M. Banda M. Kurnia M.A. Ibnu Hajar Mahfud Palo Mirnawati Mirnawati Moh. Tauhid Umar Muh. Banda Selamat Muh. Kurnia Muhammad Banda Selamat Muhammad Ikhsan Amir Muhammad Kurnia Muhammad Ridwan Muhammad Ridwan Muhammad Ridwan Muhammad Ridwan Musbir Musbir Musbir Musbir Mustasim, Mustasim Najamuddin Najamuddin Najamuddin Najamuddin Najamuddin Najamuddin Najamuddin Najamuddin, Najamuddin Novia elvianti Nur Indah Rezkyanti Nur Indah Rezkyanti, Nur Indah Nur Nur Indah Rezkyanti, Nur RACHMAT HIDAYAT Rachmat Hidayat Saffruddin Safruddin, Saffruddin Safruddin Safruddin . Safruddin Safruddin Safruddin Safruddin Sahni Putri, Andi Rani Saiful Saiful Sarip Hidayat Sarip Hidayat Sarip Hidayat Sarip Hidayat, Sarip Sei-Ichi Saitoh Sembiring, Rinawati St. Aisjah Farhum St. Aisjah Farhum St. Aisjah Farhum, St. Aisjah Sudarmintha Sudarmintha Sudirman Sudirman Sudirman Sudirman Sulyana Erma Desianty Supardi Muhammad Susy Herwaty Syafruddin Umar Tangke, Umar Veithzal Rivai Zainal Yashinta Kumala Dewi Zabhika Dinda Istnaeni