Fisheries Journal, 15 .
, 1730-1740 .
http://doi.
org/10.
29303/jp.
PRODUCTION COMPARISON OF PURSE SEINE CATCHES LANDED
AT PPS NIZAM ZACHMAN JAKARTA
Komparasi Produksi Tangkapan Purse Seine Yang Didaratkan Di Pps Nizam Zachman Jakarta Melly Maulidina*.
Izza Mahdiana Apriliani.
Asep Agus Handaka Suryana.
Lantun Paradhita Dewanti Program Studi Perikanan.
Fakultas Perikanan dan Ilmu Kelautan.
Universitas Padjadjaran Jalan Raya Bandung.
Hegarmanah.
Jatinangor.
Kabupaten Sumedang.
Jawa Barat, 45363 Corresponding author: mellymaulidina08@gmail.
(Received May 19th 2025.
Accepted July 23th 2.
ABSTRACT The Ministry of Fisheries and Fisheries (KKP) issued the latest policy in the form of Measured Fishing (PIT) to maintain the sustainability of natural resources.
PPS Nizam Zachman is one of the fishing ports that implements this policy by providing weighbridge facilities.
Weighbridges are useful in recording the production of landed catches.
One of the highest productions at PPS Nizam Zachman is purse seine.
Therefore, this study aims to analyze the comparison of purse seine production weighed using a dock scale with a weighbridge.
The method used in this study is in the form of a survey.
This study uses primary data obtained through interviews, as well as secondary data obtained through the annual report of PPS Nizam Zachman.
This study uses descriptive and comparative descriptive analysis.
The results of this study are the average production of purse seine catch from pier weighers of 3.
809,30 kg and weighbridges of 3.
069,60 kg, and an average difference of 214.
260,30 kg.
The comparison of the two is seen with the T-Test which produces a P Value of < 0,05, meaning that there is a significant difference.
The average accuracy level of weighbridges of 94,31% shows that the data produced is not accurate, due to several factors such as the use of barrels, the availability of vehicle fuel, and the difference in fish transport drivers.
Key words: Accuracy Of Weighbridges.
Comparison Of Catches.
Measured Fishing.
ABSTRAK
Kementerian Kelautan dan Perikanan (KKP) mengeluarkan kebijakan terbaru berupa Penangkapan Ikan Terukur (PIT) guna menjaga keberlanjutan sumber daya alam.
PPS Nizam Zachman salah satu pelabuhan perikanan yang menerapkan kebijakan tersebut dengan menyediakan fasilitas jembatan timbang.
Jembatan timbang berguna dalam pencatatan produksi hasil tangkapan yang didaratkan.
Salah satu produksi tertinggi di PPS Nizam Zachman yaitu purse seine.
Oleh karena itu, penelitian ini bertujuan untuk menganalisis komparasi produksi purse seine yang ditimbang menggunakan timbangan dermaga dengan jembatan timbang.
Metode yang digunakan pada penelitian ini berupa survei.
Penelitian ini menggunakan data primer yang didapatkan melalui wawancara, serta data sekunder yang Fisheries Journal, 15 .
, 1730-1740.
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Maulidina et al.
, .
didapatkan melalui laporan tahunan PPS Nizam Zachman.
Penelitian ini menggunakan deskriptif komparatif.
Hasil penelitian ini yaitu rata-rata produksi hasil tangkapan purse seine dari timbang dermaga 3.
809,30 kg dan jembatan timbang 3.
069,60 kg, serta rata-rata selisih sebesar 214.
260,30 kg.
Perbandingan keduanya dilihat dengan Uji-T yang menghasilkan P Value < 0,05 berarti terdapat perbedaan signifikan.
Rata-rata tingkat akurasi jembatan timbang sebesar 94,31% menunjukan bahwa data yang dihasilkan tergolong belum akurat, karena beberapa faktor seperti penggunaan blong, ketersediaan bahan bakar kendaraan, serta berbedannya supir pengangkut ikan.
Kata Kunci: Akurasi Jembatan Timbang.
Komparasi Hasil Tangkapan.
Penangkapan Ikan Terukur INTRODUCTION North Jakarta is a region with significant capture fisheries potential in Indonesia, contributing 98% of the data and value of capture fisheries production in DKI Jakarta Province (Jakarta Central Statistics Agency 2.
The large potential of capture fisheries in North Jakarta is supported by its geographic location directly adjacent to the Java Sea, abundant fishery resources, and the support of the local government by providing infrastructure to support fisheries production.
One of the largest fishing ports in Indonesia, located in North Jakarta, is the Nizam Zachman Ocean Fisheries Port (PPS).
The Nizam Zachman PPS functions as a growth center for fisheries businesses and as a fishing center, as a landing place for fishing vessels of various sizes, and as a marketing and landing place for fish caught by fishermen (Muharom et al.
, 2.
The highest catch yield at the Nizam Zachman Fishing Port (PPS) comes from purse seines, particularly large pelagic ones.
Purse seines are the dominant fishing gear used at the PPS Nizam Zachman.
Gunawan et al.
stated that in 2019, 441 vessels used purse seines out of a total of 1,559 fishing vessels.
Purse seines produce quite diverse catches.
The dominant catches from purse seines include skipjack tuna, mackerel, scad, tuna, trevally, mackerel, and scad (Adhawati et al.
, 2.
Recording of large pelagic purse seine catches at the Nizam Zachman PPS is done by weighing them directly at the dock.
However, the latest policy issued by the Ministry of Maritime Affairs and Fisheries (KKP) through Government Regulation (PP) Number 11 of 2023 concerning Measured Fishing (PIT) requires recording catch production using dock scales and weighbridges.
Weighbridges are the latest facilities to support the PIT policy, which is useful for recording landed catch production.
The presence of weighbridges allows catch production data to be obtained from two different methods: weighbridge and pier scales.
However, there are differences between the data generated by pier scales and those generated by weighbridges.
Therefore, this study aims to compare the catch production of large pelagic purse seine fish weighed directly at the pier and using weighbridges, as well as the differences between the two weighing methods.
RESEARCH METHODS
Time and Place of Research This research was conducted from September 2024 to January 2025 at the Nizam Zachman PPS Jakarta.
The research location is at coordinates 6A5'59.
03" South Latitude and 106A47'59.
19" East Longitude, as shown in Figure 1.
e-ISSN : 2622-1934, p-ISSN : 2302-6049 Fisheries Journal, 15 .
, 1730-1740.
http://doi.
org/10.
29303/jp.
Maulidina et al.
, .
Figure 1.
Research Location Map Research Tools and Materials The tools and materials used in this research include writing tools which are useful for recording information in the field, a mobile phone which is useful for documenting research activities, a laptop for processing data, and a questionnaire sheet which is useful as a list of questions in obtaining primary data.
Research methods The method used in this research was a survey.
The survey method involves collecting data from samples located in a specific location to generalize observations, resulting in more accurate data (Sugiyono, 2.
Research Parameters The parameters observed in this study were the role of weighbridges, purse seine catches, comparison of purse seine production weighed directly at the dock and using weighbridges, and the level of accuracy of the weighbridges.
The data used in the study were primary data in the form of the role of weighbridge use obtained through interviews with employees and business actors at PPS Nizam Zachman, while secondary data in the form of large pelagic purse seine catch production obtained through the annual report of PPS Nizam Zachman.
Analisis Data The analysis used in this research was descriptive and comparative descriptive analysis.
The data obtained was processed using software to produce structured data.
Primary data was processed descriptively, while secondary data was tabulated into a comparative table.
Comparison of catch production weighed at the pier and weighbridge was analyzed using a paired t-test, and the accuracy of the weighbridge was calculated using the following formula (Pane 2017 in Hamzah et al.
, 2.
e-ISSN : 2622-1934, p-ISSN : 2302-6049 Fisheries Journal, 15 .
, 1730-1740.
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Maulidina et al.
, .
PD =
(D2-D.
TKD = .
-|PD|}
Information:
= Comparative production data (Pier weighin.
= Production data to be compared (Weighbridg.
= Data deviation TKD
= Data accuracy level TKD 95 Ae 99% = Accurate group data
TKD <95% = Inaccurate group data
RESULTS
A weighbridge is a set of tools used to weigh goods vehicles, whether permanently installed or portable, to determine the weight of the vehicle and its load (Daulay, 2.
In the fisheries sector, a weighbridge is a useful tool for recording the production of landed fish The Nizam Zachman Port Fisheries Service (PPS) pioneered the use of weighbridges as weighing aids in the fisheries sector in Indonesia.
The following is a general overview of the weighbridge at the Nizam Zachman Port Fisheries Service (Figure .
Figure 2.
Weighbridge Construction The Role of Weighbridges at PPS Nizam Zachman The weighbridge was procured to support the Measured Fishing (PIT) policy.
The use of weighbridges is necessary due to the transition from Pre-Production to Post-Production NonTax State Revenue (PNBP) policies, as regulated in Government Regulation Number 85 of According to Ministerial Regulation Number 01 of 2023.
Post-Production PNBP is PNBP that must be paid after the issuance of a business permit for the fishing subsector based on the fish landed by fishing vessels or fish transport vessels.
The weighbridge at the Nizam Zachman PPS plays a vital role for several parties, namely the port and business actors.
The weighbridge plays a crucial role at the Nizam Zachman PPS in generating useful data for comparison with production data weighed directly at the dock.
The presence of a weighbridge as an aid in recording catch production is useful for validating data in the event of problems, such as errors in the manual scales used during weighing at the dock.
Furthermore, the presence of a weighbridge is very helpful for data collection officers, when the number of vessels e-ISSN : 2622-1934, p-ISSN : 2302-6049 Fisheries Journal, 15 .
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unloading at the dock exceeds the number of data collection officers on duty.
When this occurs, the loading and unloading of the catch continues even though the data collector is not recording Therefore, the weighbridge acts as a control in recording the catch production.
Weighbridges are also useful for minimizing the loss of production data due to fraud during recording.
Weighbridges are very helpful for data collectors in estimating the catch production, if there are vessels that do not weigh at the dock.
Data generated by the weighbridge is very necessary if there are discrepancies or obstacles in recording at the dock.
In addition, weighbridge data also serves as a benchmark for estimating the catch transported if weighing is not carried at the dock (Mulyono, 2.
Determining catch production at the Nizam Zachman Fisheries Port (PPS) is carried out in two ways: direct weighing at the dock and weighing using a weighbridge.
However, in practice, some businesses do not conduct direct weighing at the dock, citing concerns about maintaining the quality of their catch.
For businesses that conduct weighing at the dock, the weighbridge serves to generate comparative data in the event of significant discrepancies between the business owner and the data collection officer.
Meanwhile, for businesses that do not conduct weighing at the dock, the weighbridge serves as the primary source of landed catch production data.
When businesses decide not to conduct weighing at the dock, the catch is weighed at their respective warehouses.
This situation leads to discrepancies in records between businesses and data collection officers.
Therefore, the Nizam Zachman Fisheries Port (PPS) provides a weighbridge to minimize data discrepancies between businesses and data collection officers (Supriadi, 2.
Purse seine catch results at PPS Nizam Zachman Large pelagic purse seine catches have the highest production levels at the Nizam Zachman Ocean Fishing Port.
The following is the production of large pelagic purse seine catches landed at the Nizam Zachman PPS during the period November 2023AeAugust 2024 (Table .
Table 1.
Purse seine catch results at PPS Nizam Zachman Types of Fish Scientific Name 1 Albakora Thunnus alalunga 2 Alu-alu Sphyraena barracuda 3 Banyar Restrelliger kanagurta 4 Black Pomfret Parastromateus niger 5 Bearded Pomfret Rhinoprenes pentanemus 6 Month-month Megalops cyprinoides 7 Skipjack Tuna Katsuwonus pelamis 8 Cendro Tylosurus crocodilus 9 Baster Whitebait Isurus paucus 10 Bottlefin Whitebait Centroscymnus crepidater 11 Lanjam Whitebait Carcharhinus cautus 12 Mako Whitebait Isurus spp 13 Squid Loligo sp 14 Rubber Squid Sthenoteuthis oualaniensis 15 Bamboo Leaf Thryssa baelama 16 Sea Snakehead Rachycentron canadum 17 Gindara Lepidocybium flavobrunneum 18 Machetes Chirocentrus dorab 19 Gulamah Argyrosomus amoyensis 20 Sailfish Istiophorus platypterus e-ISSN : 2622-1934, p-ISSN : 2302-6049 Volume .
Fisheries Journal, 15 .
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Types of Fish Swordfish The Fish Next Door Kaci-kaci Rock Snapper Goats Kerong-kerong Kuro Kuwe Kite Benggol Kite Deles Flyover Layur Lemadang Lencam Cigar Yellowfin tuna Manyung Nyunglas Semar Setuhuk Blue Setuhuk Black Sunglir Mackerel Stem Mackerel Mackerel Plank Teri Tengkek Gray Cob Komo cobs Krai cob Balaki Banana Cobs Cigar Banana Cob Bigeye Tuna Other Fish Scientific Name Xiphias gladius Psettodes erumei Diagramma labiosum Lobotes surinamensis Pomacanthus semicirculatus Lethrinus spp Eleutheronema tetradactylum Carangoides bajad Decapterus maruadsi Decapterus russelli Decapterus macrosoma Lepturacanthus savala Coryphaena hippurus Lethrinus erythropterus Auxis rochei Thunnus albacares Arius spp Arius thalassinus Lampris guttatus Makaira mazara Makaira Indica Elagatis bipinnulata Scomberomorus commerson Scomberomorus lineolatus Scomberomorus guttatus Encrasicholina devisi Megalaspis cordyla Thunnus tonggol Euthynnus affinis Auxis thazard Auxis thazard Auxis rochei Thunnus obesus Total Volume .
Source: Secondary Data 2024 Comparison of Purse Seine Catch Production at PPS Nizam Zachman Determining catch production, particularly for large pelagic purse seine fish, is done in two ways: direct weighing at the dock and weighing using a weighbridge.
These two weighing methods produce different data.
The following table compares catch production weighed at the dock and weighed using a weighbridge (Table .
e-ISSN : 2622-1934, p-ISSN : 2302-6049 Fisheries Journal, 15 .
, 1730-1740.
http://doi.
org/10.
29303/jp.
Maulidina et al.
, .
Table 2.
Comparison of purse seine production at PPS Nizam Zachman Catch Production .
Difference The Ship That Month Weighing .
Landed Weighbridge Dock November 2023 December 2023 January 2024 February 2024 March 2024 April 2024 May 2024 June 2024 July 2024 August 2024 Total Average 809,30 3.
069,60 214.
260,30
Source: Secondary Data 2024 A t-test was conducted to determine whether there was a significant difference between production weighed using dock scales and weighbridge scales.
The t-test results are shown in Table 3.
Table 3.
Results of the t-test of catch production data Weighing Dock Mean Variance Observations Pearson Correlation Hypothesized Mean Difference t Stat P(T<=.
one-tail t Critical one-tail P(T<=.
two-tail t Critical two-tail Mean Weighbridge Weighbridge Accuracy Level Due to the significant differences between data weighed directly at the dock and data weighed on a weighbridge, it is necessary to determine the accuracy of the weighbridge.
The following shows the accuracy of weighbridge data compared to dock data (Table .
e-ISSN : 2622-1934, p-ISSN : 2302-6049 Fisheries Journal, 15 .
, 1730-1740.
http://doi.
org/10.
29303/jp.
Maulidina et al.
, .
Table 4.
Weighbridge Accuracy Production of Catch Results .
Weighing Month Weighbridge Dock (D.
(D.
November 2023
December 2023
January 2024
February 2024
March 2024
April 2024
May 2024
June 2024
July 2024
August 2024
Total
Average 809,30 069,60 Data Deviation (%) Accuracy Level (%) 4,86 3,50 8,54 7,66 8,91 5,93 6,87 3,36 4,01 3,29 95,14 96,50 91,46 92,34 91,09 94,07 93,13 96,64 95,99 96,71 DISCUSSION