PREDIKSI DAERAH PENANGKAPAN IKAN CAKALANG (Katsuwonus pelamis) BERDASARKAN KONDISI OSEANOGRAFI DI PERAIRAN KABUPATEN TAKALAR DAN SEKITARNYA

A dinamic of environmental condition were made a change of distribution and concentration pelagic fish (fishing ground) especially skipjack. It caused that every species of fish needs an optimum condition for its deveplopment and growth. Geografic Information System (GIS) application could be recommended to predict the candidat of fishing ground. The purpose of this research was to know the fishing ground of skipjack (Katsuwonus pelamis) based on oceanography dinamic (Sea Surface Temperature (SST), and chlorophyll -a) by satellite imagery. This research beside as science information, and could be applicated in management of fisheries.\ud This research was conducted from last May untill first July 2006 in Takalar Regency water, by using Data Base from NASA with AQUA/MODIS satellite imagery.\ud The result of this research showed that the concentration of chlorophyll-a is very high (??? 0.3 mg m-3 ) in some areas in Takalar Regency Water and it could be that there is the good fishing ground

Entrepreneurship pada Masyarakat Kelompok Tani Melalui Pendidikan Koloman Sholawatan

Madura adalah sebutan daerah kepulauan untuk sebuah pulau kecil di seberang utara Surabaya. Sebagai daerah kepulauan, Madura dikenal memiliki banyak sistem dan nilai lokalitas. Salah satu nilai lokalitas Madura terletak pada bangunan kebudayaan mereka yang sarat kegiatan keagaman, satu di antranya adalah kegiatan keagamaan berupa Kolaman Malam Seninan. Sebuah perkumpulan majlis ta'lim yang rutin diadakan setiap minggu malam. Menariknya, dalam konteks masyarakat Madura, kegiatan keagamaan Kolaman Malam Seninan di sini tidak semata berisikan keagamaan an sich, namun juga berisikan aktivitas sosial lain di luar agama, yaitu sosial ekonomi berupa entrepreneurship. Studi akan mengkaji fenomena entrepreneurship pada masyarakat kelompok tani melalui pendidikan koloman sholawatan malam seninan. Tiga permasalah pokok yang akan dibahas dalam kajian ini, yaitu; entrepreneurship, pendidikan, dan terkahir adalah koloman sholawatan malam seninan. kesemua fokus masalah ini akan diuraikan dalam dua pertanyaan penelitian; Bagaimana realitas koloman sholawatan malam seninan yang ada di lingkungan Kabupaten Pamekasan? Bagaimana aktivitas entrepreneurship melalui pendidikan koloman sholawatan malam seninan dijalankan oleh kelompok tani di Kabupaten Pamekasan? Studi ini merupakan kajian lapangan yang didasarkan pada jenis penelitian kualitatif. Data yang digunakan adalah data primer dan sekunder. Perspektif teori yang digunakan adalah teori pendidikan. Secara umum, temuan studi ini berisikan penjelasan deskriptif tentang sosial agama dan ekonomi dalam aktivitas koloman sholawatan malam seninan di kalangan Kabupaten Pamekasan, serta analisis teoritik tentang kegiatan entrepreneurship dalam kelompok tani melalui pendidikan koloman sholawatan malam seninan di Kabupaten Pamekasan.(Madura is the name of an archipelago for a small island north of Surabaya city. As an archipelago, Madura is known to have many locality systems and values. One of Madura's locality values lies in their cultural buildings which are full of diversity activities, one of which is religious activities in the form of 'Kolaman Malam Seninan'. A gathering of majlis ta'lim that is routinely held every Sunday night. Interestingly, in the context of the Madurese community, the 'Koloman Malam Seninan; religious activities here do not merely consist of religious 'an sich', but also contain other social activities outside of religion, namely socioeconomic in the form of entrepreneurship of 'Kolaman Malam Seninan'. Three main issues will be discussed in this study, namely; entrepreneurship, education, and finally is a nighttime prayer colony. all of the focus of this problem will be described in two research questions; What is the reality of the of Kolaman Malam Seninan in the Pamekasan Regency? How is the entrepreneurship activity through the education of 'Kolaman Malam Seninan' routine run by farmer groups in Pamekasan Regency? The study is a field study based on the type of qualitative research. The data used are primary and secondary data. The theoretical perspective used is educational theory. In general, the findings of this study contain a descriptive explanation of the socio-religious and economic aspects of the activities of the midnight health prayer among Pamekasan Districts, as well as a theoretical analysis of entrepreneurship activities in farmer groups through the education of 'Kolaman Malam Seninan' in Pamekasan.

SKIPJACK TUNA IN RELATION TO SEA SURFACE TEMPERATURE AND CHLOROPHYLL-A CONCENTRATION OF BONE BAY USING REMOTELY SENSED SATELLITE DATA

Skipjack tuna is an important species targeting by pole and line fishery in Bone Bay. The distribution and abundance of this species tended to aggregate to the preferred bio-physical environments. To describe the short term relationship between skipjack tuna and oceanographic conditions and to visualize the predicted high catch areas, remotely sensed satellite based-oceanographic sea surface temperature (SST) and chlorophyll-a together fisheries data were used. Results indicated that the highest skipjack CPUEs were mainly found in coastal areas of Palopo and Kolaka both in 2007 and in 2009 during the period of study. The high tuna concentrations corresponded well with chlorophyll-a of 0.15-0.40 mg mg-3 and SST of 29.0-31.5 °C. The preferred ranges provide a good indicator for initially detecting potential skipjack fishing grounds. This study suggested that thermal and chlorophyll fronts as well as upwelling may important mechanisms in explaining the temporal and spatial dynamics of skipjack tuna distribution and abundance in Bone Bay.Keywords: skipjack tuna, potential fishing grounds, satellite images and front

DINAMIKA PERUBAHAN SUHU DAN KLOROFIL-A TERHADAP DISTRIBUSI IKAN TERI (Stelophorus spp) DI PERAIRAN PANTAI SPERMONDE, PANGKEP

-The distribution of anchovies (Stelophorus spp) in the Spermonde coastal waters, Pangkep, was studied from satellite remotely sensed environment and catch data, using Geographic Information Systems (GIS) and Generalized Additive Model (GAM). The goal of this preliminary study was to investigate the relationship between sea surface temperature (SST) and sea surface chlorophyll-a concentration (SSC), and anchovies distribution. To describe their relationship, SST and SSC derived from Aqua/MODIS satellite were overlain with the positions of experimental fishing by local fishermen???s lift net (???Bagan perahu???). The experimental lift net operations were conducted in April to May 2008. The findings of this study showed that most of the anchovies distribution occurred in the coastal area. Anchovies distribution tended to be highest in the specific temperature of 28.8 - 29.3oC and chlorophyll-a of 1.5 ???2.5 mg.m-3. Furthermore, the SST and SSC in the coastal waters of Spermonde play a great role in determining the variability of the anchovies quantitative distribution in the study area. The results were supported by GAM prediction. Due to lack of robust data, there is no detailed information on the optimum habitat preference of anchovies. Future work is needed to reveal the preferred habitat of anchovies with the consideration of more oceanographic parameters

Skipjack Tuna Fishing Ground Based on Oceanography Satellite Image Data in Fisheries Management Area (FMA) 713

This study aimed to map the oceanographic conditions and, based on that, to determine the favorable condition of skipjack tuna fishing ground in Fisheries Management Area (FMA) 713. This condition includes sea surface temperature (SST) and chlorophyll-a concentration. The primary data, such as fishing ground position and fish catch per trip, was collected by following the fishing operations that utilized pole and line (in Bone Gulf and Flores Sea) and purse seine fishing operations (in Makassar Strait). The secondary data, such as SST and chlorophyll-a, was derived from oceanographic satellite image data. The result showed that from January to August 2019, the skipjack tuna tends to occupy off shore areas where the sea surface temperature is between 29 - 29.5 oC and the chlorophyll-a density is between 0.10 to 0.15 mg.m3

Oceanographic Conditions on Small Pelagic Fishery in the Gulf of Bone Waters

This study aimed to investigate the relationship between the dinamic oceanographic condition and fluctuation in the catch of small pelagic fish. Study on the dinamic oceanographic conditions were focused on the sea surface temperature (SST), chlorophyll-a concentration (SSC) and water depth. The study took place in the area of Gulf of Bone located, data collection was started from April to September 2017. The data were collected using experimental fishing metode (large liftnet) and applications of remote sensing in satellite oceanography, which then analysed using Geographic Information System (GIS) dan Generalized Additive Models (GAMs). The result showed that the distribution of small pelagic fish tends to be within the area of temperature ranging from 29.5 to 30.0oC, the chlorophyll-a from 0.7 to 0.9 mg.m-3 and concentrated within the coastal area with in waters depth maximum of 100 m.Keywords: Oceanography, small pelagic fish, distribution, fishing ground, Gulf of Bon

Preliminary Findings on Distribution and Abundance of Flying fish in Relation to Oceanographic Conditions of Flores Sea Observed from Multi-spectrum Satellite Images

To describe the short term relationship between oceanographic conditions and flying fish catches and to\ud visualize a spatial pattern of potential fishing grounds in the Flores sea, remotely sensed satellite images of sea\ud surface temperature (SST), chlorophyll-a concentration, fishing depth and absolute geostrophic current together with\ud catch data were used. Results indicated that the highest flying fish catch per unit efforts (CPUEs) occurred in areas\ud of SST 27.5-29.5 ??C, chlorophyll-a 0.25 - 0.70 mg. m-3 and current velocities 25.0 - 42.5 m. s-1. The fishing depth\ud locations have no significant correlation with the CPUEs. The three preferred oceanographic ranges provided a good\ud indicator for spatially detecting the potential flying fish fishing grounds particularly in the peak season. The\ud predicted potential fishing areas were located in the southwestern Takalar waters approximately 118??45???E-119??40???E\ud and 5??30???S-6??10???S and were confirmed by the fishing data. It is likely that the potential fishing grounds correspond\ud to the occurrence of the oceanographic structures such as upwelling and frontal zones which may be responsible for\ud concentrating the fish schools. This short descriptive study suggests that these findings provide some preliminary\ud results on the flying fish fishing grounds in the Flores Sea

ASSESSING DISTRIBUTION PATTERN FOR SKIPJACK TUNA IN BONE GULF, INDONESIA DURING JANUARY-JUNE

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

APPLICATION OF SATELLITE MICROWAVE REMOTE SENSING DATA TO SIMULATE MIGRATION PATTERN OF ALBACORE TUNA

To simulate migration pattern of albacore tuna in the western North Pacific Ocean during the winter period, a kinesis model driven by high accuracy of sea surface temperature (SST) maps was used. The SST data were derived from the Tropical Rainfall Measuring Mission/TRMM Microwave Imager (TRMM/TMI). Simulations showed that albacore tuna aggregated in areas of thermal preference indicated by contour line of 20°C SST. Results are compared with empirical observation maps of albacore tuna fishing locations determined from longline fishing operation during the same time periods. Albacore tuna distributions along thermal fronts generating from Simulations were fairly consistent with fishing data especially during November-January, although seasonal variations in surface temperature ranges occupied suggest that additional oceanographic factors are involved particularly during February-March. Simulations and empirical data had similar temperature distributions at approximately 18-21°C and one-sample Kolmogorov-Smirnov test reinforced the result performance. These results suggest that kinesis model driven by satellite microwave remote sensing is one of effective mechanisms for describing migration pattern of tuna in the open ocean environment. Keywords: Kinesis model, Microwave remote sensing, SST, Albacore tuna, Migration patter

Potencial utilization of skipjack tuna (Katsuwonus pelamis) in Bone Bay

The skipjack tuna (Katsuwonus pelamis) resource in Bone bay has long been exploited, but information about the sustainable potential of this fish resource in Bone bay waters is still very limited. The aim of this research is to estimate potential of fish resources that include catch per unit effort (CPUE ), the maximum sustainable yield (MSY), optimum effort, exploitation rate and total allowable catch (TAC) of skipjack tuna in the waters of Bone bay. This study uses time series data, namely annual data from the fisheries statistics report at Marine and Fisheries Service, South Sulawesi Province from 2006-2015. The method used to estimate the potential of fish resources in this study is the surplus production method with the Schaefer model. The results showed that the average production and standard efforts in the 10-year period were 14689.7 tons and 914 standard units respectively. The estimation results obtained MSY and optimum effort per year are 22561.4 tons and 1730 standard units, and allowed catches (TAC) of 18049.2 tons per year. The level of exploitation of skipjack tuna resources in the waters of Bone Bay does not over exploited every year except in 2017.Keywords: potential of fish resources, skipjack tuna (Katsuwonus pelamis), MSY, TAC, Bone bay