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INDONESIA
Journal IPTEKS Pemanfaatan Sumberdaya Perikanan
Published by Universitas Hasanuddin
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Social,
Earth & Planetary Sciences Environmental Science
Arjuna Subject : -
Articles 17 Documents
 1   2 
Predicting Potential Fishing Zones of Large Pelagic Fish in Mamuju Regency Waters Safruddin, 1; Mukti Zainuddin, 2; Chair Rani, 3
Journal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol 1, No 2 (2014)
Publisher : Journal IPTEKS Pemanfaatan Sumberdaya Perikanan

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Abstract

Large pelagic species such as tuna are known to be abundant in Mamuju Waters, Makassar Strait.  The distribution and abundance of the fish in that area are expected to be related to the distributions of sea surface temperature and chlorophyll-a concentration. This study aims to predict spatial and temporal distribution of the species during the period of June 2013-May 2014.  Probability indices used for detection of tuna potential fishing zones (PFZs) were constructed from a model of satellite-based SST and chlorophyll data in relation to tuna fishery. Results showed that the occurrence of tuna species in Mamuju Water were mostly predicted in areas of 118°12’-118°48’ E 1°48’ – 2°30’S with the total area of approximately 7,495 km2.   The potential fishing zones were mainly found in August.  It was likely that tuna potential fishing zones associated with the preferred oceanographic factors throughout the study area.
Comparison of The Structure Size Yellowfin Tuna (Thunnus albacares) Between Caught at FAD Deep Sea And Shallow Waters at Makassar Strait Wayan Katun, 1; Achmar Mallawa, 2; Nuraini L. Rapi, 3
Journal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol 1, No 2 (2014)
Publisher : Journal IPTEKS Pemanfaatan Sumberdaya Perikanan

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Abstract

Yellowfin tuna (Thunnus albacares) has long been captured by commercial fishery in Makassar Strait using purse seine, trolling line and handline fisheries. It was probably it can cause over exploitation and decrease population structure for that fish. This study aimed to analyze the size structure of yellowfin tuna based on the positions of deep and shallow sea FADs (fish aggregating devices). The data consisted of fish length and weight ) and the size of gonad  maturation,  which were  collected from the  field observation . The  data were analyzed using histogram graph and t- test. The results indicated that the fish length caught in the deep and shallow sea FADs ranged from 30 to120 cm with the average of 101.39 ±2.49 cm, and from 105 to 170 cm with the average of 134.90 ± 1.90, respectively. The fish weight ranged from 20 to75 kg for deep sea FADs and ranged from 0.4 to 35 kg for shallow sea FADs. The first stage of gonad maturation on either female or male occurred at 118.88 cm forklength, where the smallest spawning size on  female  was 126.10 cm forklength.
Safety Equipment on Slerek in Pengambengan Nusantara Fishing Port, Jembrana, Regency, Bali Adi Guna santara, Adi; Fis Purwangka, Fis; Budhi Hascaryo Iskandar, Budhi
Journal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol 1, No 1 (2014)
Publisher : Journal IPTEKS Pemanfaatan Sumberdaya Perikanan

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Abstract

Fishing is one of the most challenging activities in the world. It is about 80% of ship accidents due to human error. The availability and proper use of safety equipment can minimize the risk. This study aims to identify the suitability of safety equipment used on Slerek boat in PPN Pengambengan, Bali in accordance with international and national standards, and describes the role of relevant institutions to increase the fishermen safety. In this study, we used a survey method, in which focussed on three main aspects including  the types of safety equipment, numbers of safety equipment, and the suitability of equipment which must be taken. The lack of equipment and awareness about safety, and do not comply with the national standards for boat less than 24 meters length will directly affect the fishermen safety. The lack of regulations on the small boat safety showed that the fishermen safety in fishing activities in Indonesia have not been considered and there is no clear policy from local and central government.
Characterization of Skipjack Tuna Fishing Ground during the West Monsoon in Bone Bay Adi Jufri, Adi; Anshar Amran, Anshar; Mukti Zainuddin, Mukti
Journal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol 1, No 1 (2014)
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Abstract

The purpose of this study was to characterize potential fishing ground for the skipjack tuna using the oceanographic conditions of sea surface temperature and chlorophyll-a concentrations and catch data, and to describe the level of primary productivity around the skipjack fishing grounds in the Bone Bay. This study used a survey method by collecting primary tuna catch and MODIS satellite image data. The data were analyzed using Empirical Cumulative Distribution Function (ECDF). The model outputs were visualized using ArcGIS spatial analyst.  The results showed that the potential skipjack tuna fishing grounds during the west monsoon ( December -February ) were well characterized  by  the environmental conditions of SST and chlorophyll- a concentration ranged from 29.9 to 31.0 °C and from 0.12 to 0.22 mg m3, respectively. The highest catches for skipjack were found in February in the specific areas of 120°E-121°E and 3°S-4°S where the levels of primary production ranged from 5.30 to 11.62 g C/m2/ month during the west monsoon.
Management Concept of Skipjack Tuna (Katsuw onus pelamis) Fisheries Within Bone Bay Zone in The Perspective of Sustainability Muh. Jamal, 1; Fedi A. Sondita, 2; Budi Wiryawan, 3; John Haluan, 4
Journal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol 1, No 2 (2014)
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Abstract

Fisheries  management  ideally  could  prevent  the  occurrence  of  overfishing which nowadays has occurred globally, including in Indonesia.   On the  basis offishing status and biology of skipjack tuna, as well as analysis of relationship betweensea surface temperature and chlorophyll-a with skipjack tuna catches,  the fisheries management should implement zoning regulation. The north zone was suggested to be prioritized as a conservation area for protecting skipjack juvenile (< 46,5 cm FL) from fishing activity.  The middle and south zones were suggested to be fishing area where sustainable fishing is applied.   The Application of these regulations has an implication on total allowable catches from Bone Bay.  The number has lower value than the previous MSY and F-opt values.  Number of skipjack tuna which was allowed to be caught in the north zone is 573 ton yr-1, in the middle zone was 5,820 ton yr-1 and in the south zone was 2,210 ton yr-1.    Overall, the value of allowed number of skipjack tuna catches in Bone Bay was estimated to be 8,600 ton yr-1  with fishing effort per year is equivalent with 5,376 operational trips from pole and line boats.
Biological Performance Aspect of Skipjack Tuna (Katsuw onus pelamis) Population Captured by Purse Seine in East Season at Flores Sea Achmar Mallawa, 1; Faisal Amir, 2; Mukti Zainuddin, 3
Journal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol 1, No 2 (2014)
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Abstract

Biological performance of skipjack tuna has been done in the Flores Sea during the southeast monsoon (June - August, 2013).   The objective of the research was to analyze biological performance of skipjack tuna captured by purse seine: including size composition,age classes, growth rate, food habit, gonad maturity and suitable length for capture.  Thedata for length structure and age class, the growth rate,  food habit, gonad maturity,  and volumetric fecundity estimation were analyzed using Bhattacharya, Von Bertalanffy, propendance index, histological and volumentric methods, respectively. The results showed that (1) the size structure and age class were different according to the fishing ground location and the fishing season, (2) the average size of fishes captured in the western part of Flores Sea was greater than the eastern one, (3) the average length of fishes catched by purse seine without fish aggregation device (FAD, rumpon) was longer than   that of with FAD, (4) the growth rate of skipjack tuna was slow where the growth coefficient was less than0,5 per year, and the asymptotic length was 106,0 cm FL, (5) the skipjack tuna achieved the mature stage at 45 cm and  at 50 cm length for female and male, respectively, and ready to spawn at 55 cm and 60 cm for male and female , respectively, (6) it was more than 80 % offishes captured by fishermen in the Flores Sea which were not yet suitable size for fishing.
Makassar Water Oceanography Character which connected with Fishing Potential Area of Small Pelagic Fish on East Season Abd Rasyid Jalil, Abd; Andi Iqbal Burhanuddin, Andi; Muh. Hatta, Muh
Journal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol 1, No 1 (2014)
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Abstract

The availability of fish in the fishing area is influenced by oceanography condition. In Makassar coastal waters, potential area of small pelagic fish is the main information for the fisherman. Purpose of this research is to provide information of oceanographic characteristics which connected with fishing potential area on east season. This research was conducted during May-December 2012, using field and secondary data. Potential area determination was analyzed by using polynomial model. Distribution of oceanographic factors was analyzed by SMS and surfer. Makassar has continent as well as island areas (12 islands). Oceanographic conditions indicate tidal current velocity of 0.08 m/s and ebb currents from 0.05 to 0.30 m/s. Sea surface temperatures in the spring waters east of Makassar were in the range of 26 - 31oC. The concentration of chlorophyll-a occurred between 0.0 and 1.0 mg/m3, oceanographic conditions in July and August 2012 are relatively similar. Potential zone for small pelagic fish species in June, July, and August are in the waters around the islands - northern part of the island of Makassar and from the island to Lanyukkang Lumu-Lumu island.
Dynamics of Temperature and Chlorophyll-a Changes on the Distribution of Anchovies (Stelophorus spp) in Spermonde Coastal Waters, Pangkep Safruddin, safruddin; Mukti Zainuddin, Mukti; Joeharnani Tresnati, Joeharnani
Journal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol 1, No 1 (2014)
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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.
Aplication of Multicriteria Decision Making (MCDM) Method by Weighting Technic Using in Identifying and Designing Marine Protected Area in North Luwu, South Sulawesi Province Chair Rani, 1; M. Natsir Nessa, 2; Ahmad Faisal, 3; M. Farid Samawi, 4
Journal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol 1, No 2 (2014)
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This study,in 2012, has successfully formulated with the MCDM for each allocation of space in KKPD allotment (core areas, sustainable fisheries zone, used zone, and other zones). This study aims to identify and map the biophysical conditions and the potential of coastal and marine natural resources in marine conservation area candidate, North Luwu Regency; to identify the areas suitable for the KKPD based on weighting technique with the MCDM method; and to evaluate potential candidates for marine protected areas in the coastal region. This study used a  survey method to perform in situ measurements of physico- chemical parameters, conducted a survey of coastal ecosystems using the transect method. The socio-economic data of coastal communities were collected using the questionnaire. The biophysical conditions and marine resources were analyzed using descriptive statistical methods. The results showed that the  candidate region has a rich diversity   of coastal ecosystems, but the ecosystem, particularly seagrass beds and coral reefs have been in damaged category. Only the mangrove ecosystem that was still in a good condition category with moderate-to-heavy levels of density. It was discovered 2 regions corresponding to the allotment of the Core Zone, which is in the Region I and III with the total area of 654.22 hectares. For sustainable fisheries zone, Region II and IV would be the first choice with the total area of 620.27 hectares. The Used Zone was identified in the Region V with total area of480.66 hectares. The total area of the region was equal to 1755.15 hectares.
The Variety of Fishing Boat in Takalar Regency Nurul Nahdyah, Nurul; St Aisjah Farhum, St; Ilham Jaya, Ilham
Journal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol 1, No 1 (2014)
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This research aims to study the variety of fishing boats based on several technical aspects. This research was carried out from September of 2013 through January of 2014.  This study collected the sampling data (boats at docking condition) in approximately 10 % of existing population along south coast from Takalar regency. The data were analyzed using cluster and PCA (Principal Componen Analysis) to assess the categorization of the boats based on the main dimension size and the mark of the main dimension ratio. The results showed that there are five groups of categorization which have different characteristics on its group. The group I was the boat which has high width and length (L/B), the group II was the boat which has high height and length ratio (L/D), the group III was the boat which has low height and length percentage (L/D), the group IV the boat which had high length, width, height, and the high water loaded (L, BOA, D, and d), and the group V was the boat which had high width and height ratio (B/D).

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