scholarly journals ZONASI PEMANFAATAN KAWASAN PERIKANAN TANGKAP DI TELUK BANTEN (Zonation of Utilization Fishing Zone in Banten Bay)

2013 ◽  
Vol 2 (2) ◽  
pp. 177
Author(s):  
D. Ernaningsih ◽  
Domu Simbolon ◽  
Eko Sri Wiyono ◽  
Ari Purbayanto
Keyword(s):  
Demersal Fish ◽  
Sea Surface ◽  
Fishing Ground ◽  
Gis Analysis ◽  
Fishing Season ◽  
Development Indicators ◽  
Relationship Analysis ◽  
Index Analysis ◽  
Zone Ii ◽  
Fishing Area

<p>Utilization of fishing area in Banten Bay by various activities may cause multi sectors conflicts related to management of the bay. The integrated zone system in that area has not been established yet; therefore it is needed to be studied. The objectives of this study were to 1) determine fishing season and fishing ground; 2) determine indicators and criteria of fishing zone; 3) establish fishing zone. The study was conducted in four fish landing centers which are located in Karangantu, Terate, Wadas, and Kepuh from January to April 2010. Data were collected by surveying analyzed using the fishing season index analysis, relationship analysis between sea surface temperature, chlorophyll-a and fish abundance, and GIS analysis. Based on the results, it were revealed that 1) peak fishing season of pelagic fish was from November to January and demersal fish was from November to December; 2) the catches from fishing grounds surrounding Panjang island were anchovies, trevallies, squids, Indian mackerels, pony fishes, Fringescale sardinella; surrounding Pamujan besar island were threadfin bream, shrimps; and surrounding Tunda island were eastern little tuna, narrow barred king mackerels, black pomfret, red snapper, great trevally, scads, mullets, squids; 3) development indicators of fishing zone were (i) feasibility of fishing ground, (ii) compatibility of fishing gears with fishing grounds, (iii) possibility of conflicts, (iv) infrastructure, (v) carrying capacity of environment; 4) Banten bay water was divided into three fishing zones, they were (i) passive zone, (ii) passive and outboard motor zone, (iii) active and inboard motor zone.</p><p><strong>Key words:</strong> fishing ground, fishing zone, utilization</p>

scholarly journals Fishing Ground Mapping of Demersal Fish in The Riau Islands Province Waters Related to the Oceanographic Factors

2021 ◽  
Vol 934 (1) ◽  
pp. 012061
Author(s):  
A B Sambah ◽  
M F F Fardilah ◽  
M A Z Fuad ◽  
M A Rahman
Keyword(s):  
Demersal Fish ◽  
Sea Surface ◽  
Fishing Ground ◽  
Research Areas ◽  
Fish Catch ◽  
Oceanographic Parameter ◽  
Level 3 ◽  
Parameters Analysis ◽  
Oceanographic Data ◽  
The Relationship

Abstract Research on the potential fishing ground for demersal fishing is a way to determine the areas that have the potential for fishing activities. Potential fishing ground mapping can be done by observing the dynamics of oceanographic parameters. The use of satellite imagery helps in providing oceanographic data in order to study the variability of oceanographic parameter. The aim of the study was to analyse the relationship between oceanographic parameter and demersal fish catch in order to validate potential fishing grounds for demersal fish. This research has been conducted in the waters of the Riau islands. Field observations and data collection including surveys of fishing grounds and identification of fish catches were carried out during March to August 2020. To support the analysis, Aqua-Modis Level-3 satellite data was used to observe the oceanographic variations. The data used in the analysis consisted of fishing grounds coordinate information, catches, sea surface temperature, chlorophyll-a, water depth, and salinity. The results showed that during the period 2010-2020, oceanographic dynamics did not experience significant changes or tended to be stable. Most of the research areas indicated appropriate categories for fishing activities based on the research parameters analysis. The correlation of the research parameters described a significant effect on fishing activities.

scholarly journals Kepadatan Stok, Komposisi Jenis, Struktur Ukuran dan Daerah Penangkapan Ikan di Teluk Jakarta

2021 ◽  
Vol 14 (2) ◽  
Author(s):  
Prihatiningsih Wagiyo ◽  
Prihatiningsih P ◽  
Sri Turni Hartati
Keyword(s):  
Species Composition ◽  
Density Distribution ◽  
Size Structure ◽  
Demersal Fish ◽  
Horizontal Distribution ◽  
Fishing Ground ◽  
Fishing Gear ◽  
Mouth Part ◽  
Fishery Resource ◽  
Fishing Area

Jakarta Bay has a variety of biota as a fishery resource, the utilization of which is continuous intensively. this study aims to obtain the data and information on stock density, species composition, size structure and fishing ground.  The research was conducted by means of exploration and observation in 2016. The results showed that the average stock density in Jakarta Bay was 11,400 kg/km2 and in the Seribu Islands 25,500 kg/km2. Stock density distribution based on vertical coastline is obtained; mouth part 13,925 kg/km2, middle 11,709 kg/km2 and the coast 8,326 kg/km2. Coastal horizontal distribution; West area 15,311 kg/km2, Central 9,256 kg/km2 and East 9,259 kg/km2. Based on area in the Seribu Islands 25,500 kg/km2, Jakarta Bay 11,320 kg/km2 and Tangerang 11,610 kg/km2. Stock composition includes; demersal fish 84.53%, Cephalopods 9.98%, Crustaceae 4.32% and others. The fishing area of gill nets is wider and more spread out than other fishing gear.

scholarly journals Variasi Musiman Hubungan Antara Parameter Oceanografi Dengan Hasil Tangkapan Ikan Tongkol Berdasarkan Data Harian Di Selat Bali

2017 ◽  
Vol 4 (1) ◽  
pp. 109 ◽  
Author(s):  
I Gusti Agung Bagus Wisesa Sastra ◽  
I Wayan Gede Astawa Karang ◽  
Abd. Rahman As-syakur ◽  
Yulianto Suteja
Keyword(s):  
Chlorophyll A ◽  
Environmental Parameters ◽  
Pelagic Fish ◽  
Sea Surface ◽  
Fishing Ground ◽  
Temporal Fluctuation ◽  
Simple Correlation ◽  
The West ◽  
Chlorophyll A Concentration ◽  
Fish Catch

Mackerel fish that classified pelagic fish and an export commodity in Indonesia. Distribution of mackerel fish are foundn all Indonesian waters, one of them in the Bali Strait. Distribution of mackerel fish influenced by oceanographic condition such as sea surface temperature (SST) and chlorophyll-a concentration. SST and chlorophyll-a concentrations are environmental parameters that can provide information on fishing ground. The purpose of this research is explained the temporal fluctuation and relationship between SST and chlorophyll-a concentration with mackerel fish had been catch in Bali Strait waters during 2011-2016. Data were analyzed using simple correlation analysis with 95% confidence interval. Temporally, the highest average SST occurred during the transition season I (March-May) and the lowest in the east season (June-August). The highest average chlorophyll-a concentration occurs in the east season and the lowest in the west season (December-February). The highest catch of mackerel fish occurred during transitional season II (September-November) and lowest in west season. The association between SST and chlorophyll-a concentration on mackerel fish catch showed low correlation with significant relationship, whereas concentration between SST and chlorophyll-a concentration strong with significant correlation

scholarly journals Spatio-Temporal Variability of the Habitat Suitability Index for the Todarodes Pacificus (Japanese Common Squid) around South Korea

2019 ◽  
Vol 11 (23) ◽  
pp. 2720 ◽  
Author(s):  
Lee ◽  
Son ◽  
Lee ◽  
Kang ◽  
Lee
Keyword(s):  
South Korea ◽  
Habitat Suitability ◽  
Sea Surface ◽  
Fishing Ground ◽  
Habitat Suitability Index ◽  
Fishery Resources ◽  
Todarodes Pacificus ◽  
Suitability Index ◽  
Common Squid ◽  
Japanese Common Squid

The climate-induced changes in marine fishery resources in South Korea have been a big concern over the last decades. The climate regime shift has led to not only a change in the dominant fishery resources, but also a decline in fishery landings in several species. The habitat suitability index (HSI) has been widely used to detect and forecast fishing ground formation. In this study, the catch data of the Todarodes pacificus (Japanese Common Squid) and satellite-derived environmental parameters were used to estimate the HSI for the T. pacificus around South Korea. More than 80% of the total catch was found in regions with a sea surface temperature (SST) of 14.91–27.26 ℃, sea surface height anomaly (SSHA) of 0.05–0.20 m, chlorophyll-a of 0.32–1.35 mg m-3, and primary production of 480.41–850.18 mg C m-2 d-1. Based on these results, the HSI model for T. pacificus was derived. A strong positive relationship (R2 = 0.9260) was found between the HSI and the fishery landings. The climatological monthly mean HSI from 2002 to 2016 showed several hotspots, coinciding with the spawning and feeding grounds of T. pacificus. This outcome implies that our estimated HSI can yield a reliable prediction of the fishing ground for T. pacificus around South Korea. Furthermore, the approach with the simple HSI model used in this study can be applied elsewhere, and will help us to understand the spatial and temporal distribution of fishery resources.

scholarly journals Fishing Season of Large Tuna from Purse Seine Fishery in Tumumpa, Manado, North Sulawesi

2019 ◽  
Vol 23 (4) ◽  
pp. 171
Author(s):  
Bram Setyadji ◽  
Umi Chodriyah
Keyword(s):  
Ecological Niche ◽  
Operation Time ◽  
Study Data ◽  
Purse Seine ◽  
Fishing Ground ◽  
Skipjack Tuna ◽  
Fishing Season ◽  
Pelagic Fishes ◽  
North Sulawesi ◽  
Purse Seine Fishery

Knowledge on seasonal fishing pattern is essential in fisheries research in order to increase the effectiveness of fishing and at the same time protecting the fishing ground from excessive fishing practices. Determining the seasonal fishing pattern of large pelagic fishes, namely large tuna (yellowfin and bigeye), small tuna (mackerel) and skipjack tuna were the objective of this study. Data from the 2013-2015 fishing operation time series were used to analyze the fishing season using the percentage average per unit effort (CPUE) method. The main focus of this study was purse seine fishery. The research showed that high fishing season of large pelagic fishes allegedly occurred during May to July, which reached its peak on May. On the other hand, low fishing season occurred during January to April, with the lowest on March. There were similarities between large tuna, small tuna and skipjack in term of their seasonal fishing pattern, although they did not show any good correlation (r<0.5). This might due to fact that even tough large tuna, small tuna and skipjack tuna shared the same ecological niche but apparently, they did not show any interaction (symbiosis) but competition.

scholarly journals ASPEK BIOLOGI DAN DAERAH PENANGKAPAN CUCUT BOTOL (Squalus sp.) YANG TERTANGKAP DI PERAIRAN SAMUDERA HINDIA

2017 ◽  
Vol 13 (1) ◽  
pp. 35
Author(s):  
Dharmadi Dharmadi ◽  
Fahmi Fahmi
Keyword(s):  
Indian Ocean ◽  
Deep Water ◽  
Fishing Season ◽  
Total Length ◽  
Study Results ◽  
The Indian Ocean ◽  
Dogfish Shark ◽  
Males And Females ◽  
The Relationship ◽  
Fishing Area

Penelitian mengenai keragaman jenis Elasmobranchi dilakukan pada bulan Januari sampai dengan Desember 2002 di pelabuhan-pelabuhan perikanan PPI Cilacap, TPI Palabuhanratu, TPI Kedonganan-Bali, dan PPI Tanjung Luar-Lombok Timur. Cucut botol Squalus sp. merupakan jenis cucut laut dalam yang paling sering dijumpai selama penelitian berlangsung. Hasil penelitian menunjukkan bahwa cucut botol betina lebih sering tertangkap dibandingkan cucut jantan pada setiap waktu pengamatan. Frekuensi panjang cucut botol tertinggi dijumpai pada bulan Juni danAgustus yaitu berkisar antara 62 sampai dengan 68 cm. Nisbah kelamin cucut botol antara jantan betina selama pengamatan adalah 1:1,83. Hubungan antara panjang total tubuh dan panjang klasper cenderung linier dengan nilai R2=0,634326. Puncak musim penangkapan cucut botol terjadi sekitar bulan Agustus. Sedangkan daerah penangkapan cucut botol adalah di perairan Samudera Hindia. A study on diversity Elasmobranchi of was conducted using market surveys method from January to December 2002 at several fish landings in southern Indonesia, i.e. the Cilacap, Palabuhanratu, Kedonganan- Bali, and Tanjung Luar-East Lombok landing sites.A deep water shark, Indonesian shortnose spurdog (Squalus sp.), was the most common deep water sharks captured in the area during the study. Results show that females sharks were caught more frequent at every observation than those of males. The most abundant of Indonesian shortnose spurdog was recorded in June and August ranging from 62 to 68 cm in total length. Sex ratio between males and females of Squalus sp. during the study was 1:1.83, and the relationship between total length and claspers length of dogfish shark was linier (R2=0.634326). The peak fishing season of Indonesian spurdog was occurred in August with the fishing area was in the Indian Ocean.

scholarly journals PERIKANAN TONGKOL DI PERAIRAN BUYAT PANTE

2011 ◽  
Vol 7 (2) ◽  
pp. 87
Author(s):  
Meta S Sompie
Keyword(s):  
Integrated Approach ◽  
Fishing Season ◽  
Fish Resources ◽  
Bay Area ◽  
North Sulawesi ◽  
Fisheries Policy ◽  
Tuna Fishing ◽  
Auxis Thazard ◽  
Surrounding Areas ◽  
Fishing Area

ABSTRACTFisheries development in Indonesia, especially in North Sulawesi, is to optimize the utilization of resources through a comprehensively integrated approach and accommodate a variety of interests, such as fishermen, national economy, sustainability of marine resources and fisheries, and environmental balance and sustainability. For fisheries policy preparation, adequate information on fish resources is required. One of the fish resources in Buyat Bay area is little tuna (Auxis thazard). This study aimed to evaluate the little tuna resource and fishing season in the waters of Buyat Bay and surrounding areas. The fishing area in Buyat Bay waters is 4.88 km2. The little tuna biomass of Buyat Bay is 0.486 ton/km2. Monthly average catch was 0.7 tons relative to the maximum sustainable catch of 2.37 ton/month, and then the exploitation rate was 29.59%. This meant that the catch landed in Buyat Pante was lower than the monthly maximum sustainable catch. The catch is allowed at 80% of the maximum sustainable catch, which amounted to 1.89 tons/month. Tuna fishing season in Buyat Bay occurred in March and then from May to September following the pattern of the two-month season of the year for high density.ABSTRAKPembangunan perikanan di Indonesia, khususnya di Sulawesi Utara adalah mengoptimalkan pemanfaatan sumberdaya melalui pendekatan yang terintegrasi dengan komprehensif dan mengakomodasi berbagai kepentingan, yaitu: nelayan, ekonomi nasional, kelestarian sumberdaya kelautan dan perikanan, serta keseimbangan dan kelestarian lingkungan. Untuk penyusunan kebijakan perikanan diperlukan informasi yang memadai dari sumberdaya ikan. Salah satu sumberdaya ikan di wilayah Teluk Buyat adalah ikan tongkol (Auxis thazard). Penelitian ini bertujuan untuk mengevaluasi sumberdaya dan musim penangkapan ikan di perairan Teluk Buyat dan sekitarnya. Area penangkapan ikan di perairan Teluk Buyat (4,88 km2). Biomassa ikan ini di Teluk Buyat 0,486 ton/km2. Tangkapan rata-rata bulanan sebesar 0,7 ton, dibandingkan dengan hasil tangkapan maksimum yang lestari dari 2,37 ton/bulan, kemudian tingkat pemanfaatan ikan tuna di Teluk Buyat berada pada 29,59%. Ini berarti bahwa hasil tangkapan yang didaratkan oleh para nelayan Buyat Pante masih berada di bawah eksploitasi. Hasil tangkapan yang diperbolehkan sebesar 80% dari hasil tangkapan maksimum lestari (1,89 ton/bulan). Musim penangkapan tuna di Teluk Buyat terjadi selama enam bulan, yang dimulai dari bulan Maret dan selanjutnya dari bulan Mei hingga September, mengikuti pola musim dua bulan dalam setahun dengan kepadatan tinggi.

scholarly journals RELATIONSHIP BETWEEN CHLOROPHYLL-A AND SEA SURFACE TEMPERATUR WITH Sardinella lemuru CATCHING IN BALI STRAIT

2021 ◽  
Vol 15 (1) ◽  
pp. 12
Author(s):  
Niken Gustantia ◽  
Takahiro Osawa ◽  
I Gusti Bagus Sila Dharma ◽  
Wayan Sandi Adnyana
Keyword(s):  
Chlorophyll A ◽  
Sea Surface ◽  
Fishing Ground ◽  
Fish Production ◽  
Resource Potential ◽  
Chl A ◽  
Remote Sensing Technique ◽  
Fish Resources ◽  
Fish Catch ◽  
Total Fish

The Bali Strait is one of Indonesia's territorial waters that have high natural resource potential. The area is only about 2,500 km2 but has a high potential fishing ground. The Bali Strait has unique and dynamic waters that can cause fluctuations in fish production amount each year. The largest type of fish caught in the Bali Strait is lemuru (Sardinella lemuru), a fish found only in the Bali Strait. This fish plays a significant role in the economy of fishers in the Bali Strait. Each year the catch of lemuru has fluctuated, making fishing locations challenging to predict. Sea Surface Temperature (SST) and Chlorophyll-a (Chl-a) are oceanographic parameters that can affect the resources of the ocean. Oceanographic phenomena, such as upwelling, can also influence the condition of fish resources. Therefore, understanding the relationships between these factors is essential in practical fisheries management. Observation of oceanographic factors is very hard with the field observation due to time and cost limitations. The remote sensing technique is an efficient method to determine SST distributions and Chl-a concentrations using satellite imagery. This study analyzes SST and Chl-a concentration in the Bali Strait using the Global Change Observation Mission(GCOM-C) satellite and determines the correlation between Chl-a and SST with a total fish catch(lemuru) during 2019. The results showed the maximum average Chl-a concentration observed on August 1.62 mg/m3 and the lowest concentration observed on January 0.45 mg/m3, the maximum SST on March was 28.12° C, and on August (Dry season) with 22.40° C. The SST variable's influence provides a negative correlation (R = -0.209) with changes in lemuru catch, while the Chl-a parameter has a positive correlation (R = 0.375) with changes in the catch. The pattern of relationship between Chl-a with fish catching had a good relationship than the SST in 2019.Keywords: Bali Strait; Sardinella lemuru; SST; Chl-a.

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

2020 ◽  
pp. 51-60
Author(s):  
. Safruddin ◽  
Rachmat Hidayat ◽  
Mukti Zainuddin
Keyword(s):  
Chlorophyll A ◽  
Fisheries Management ◽  
Satellite Image ◽  
Image Data ◽  
Sea Surface ◽  
Fishing Ground ◽  
Skipjack Tuna ◽  
Management Area ◽  
Tuna Fishing ◽  
Satellite Image Data

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.

scholarly journals POTENTIAL FISHING GROUND MAPPING BASED ON GIS HOTSPOT MODEL AND TIME SERIES ANALYSIS: A CASE STUDY ON LIFT NET FISHERIES IN SERIBU ISLAND

2017 ◽  
Vol 9 (1) ◽  
pp. 337-356
Author(s):  
Andi Alamsyah Rivai ◽  
Vincentius P. Siregar ◽  
Syamsul B. Agus ◽  
Hiroki Yasuma
Keyword(s):  
Time Series ◽  
Fisheries Management ◽  
Fishing Ground ◽  
Effective Management ◽  
Target Species ◽  
Fishing Activity ◽  
Fishing Season ◽  
Spatio Temporal ◽  
West Monsoon

Information on the spatial and temporal of fishing activity can optimize a fisheries management and increase their economical and biological benefit. For effective management and good understanding of fishing activities, information about fishing ground is crucial. In this study, we aimed to analyze the spatio-temporal of lift net fisheries in Kepulauan Seribu by analyzing their fishing season, investigating their hotspot of fishing ground using GIS-based hotspot model, and mapping the potential fishing ground of each target species. We found that anchovy and scad could be caught throughtout the year, while sardine and squid had high fishing season in west monsoon. Hotspot of fishing ground of lift net fisheries in Kepulauan Seribu waters generally was concentrated around Lancang Island and in southern part of Kotok Island. Potential fishing ground for sardines was located in around Lancang Island on west monsoon. Squids were highly distributed around Lancang Island in December to January and around Lancang and Rambut Islands in November. Anchovy and scad had more potential fishing ground in around Kepulauan Seribu waters.  Keywords: fishing ground, lift net, hotspot, fishing season 

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