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Age Structure, Growth, and Mortality of Blue Swimming Crab (Portunus pelagicus Linnaeus,1758) in Banten Bay Waters

Jurnal Biodjati · Vol. 8 No. 1 (2023) · hlm. 69–80

DOI
10.15575/biodjati.v8i1.22884
ISSN
2541-4208, 2548-1606
Terbit
2023-05-30
Penerbit
UIN Sunan Gunung Djati Bandung
Bahasa
eng

Abstrak

Blue swimming crab (BSC) (Portunus pelagicus) is the main fisheries commodity in Banten Bay, with the highest catch of catch occurring in the west monsoon. Increased fishing efforts have reduced the catch, as indicated by a decrease in the average size of carapace width. Overfishing might influence the life cycle and population structure of the BSC. This research aims to analyze the growth and mortality of the Blue Swimming Crab in Banten Bay, especially in the west monsoon. Blue swimming crab samples were obtained from the catch of fish trap and gillnet fishermen with landing sites around the Karangantu Archipelago Fishing Port. Growth, age, and mortality were predicted based on the measurement of total carapace width and body weight. Data were analyzed using Fisat II and Microsoft Excel. The frequency distribution of carapace showed one mode class which normally was distributed consisting of only one age structure group (cohort). The relationship between carapace width and weight of males or females resulted in a slope value (b>3) and was positive allometric, indicating that both sexes had a faster weight gain than the increase in carapace width. Growth parameters resulted asymptotic length (L∞); male 176.75 mm and female 176.46 mm. The growth was relatively fast, with a growth coefficient value of more than one. The mortality showed that the fishing mortality value (F);in males was 3.47 /year and in females 2.69/year was greater than the natural mortality value (M); males 1.25/year and females 1.22/year. Blue Swimming Crabs in Banten Bay had overfished as shown by the high fishing mortality value and there were still many BSC that were caught below the legal size allowed. Thus, catches should be controlled to keep the population and for sustainable fisheries.

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  • Sultan Ageng Tirtayasa University
  • Tadulako University
  • University of Brawijaya
  • Syarif Hidayatullah State Islamic University Jakarta
  • National Research and Innovation Agency
  • Universitas Islam Negeri K.H. Abdurrahman Wahid Pekalongan
  • Universitas Islam Negeri Ar-Raniry
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Rekan penulisOrganisasiArtikel bersama
Ani RahmawatiAfiliasi tidak diketahui1
Muhammad Suhaemi SyawalNational Research and Innovation Agency1
Marwiyah UlfahSultan Ageng Tirtayasa University1
Abdul HamidUniversitas Islam Negeri K.H. Abdurrahman Wahid Pekalongan1
Salman Abdul MuthallibAfiliasi tidak diketahui1
Nisa KhairuniUniversitas Islam Negeri Ar-Raniry1
Fadjri MaarifMinistry of Environment and Forestry, Republic of Indonesia1
Hasriani MuisTadulako University1
Rhamdhani Fitrah BaharuddinTadulako University1
Muhammad Adam SuniTadulako University1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.uinsgd.ac.id/index.php/biodjati/oai, pertama di-harvest 7 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Age Structure, Growth, and Mortality of Blue Swimming Crab (Portunus pelagicus Linnaeus,1758) in Banten Bay Waters</dc:title>
	<dc:creator>Aulia, Imadiah</dc:creator>
	<dc:creator>Khalifa, Muta Ali</dc:creator>
	<dc:creator>Rahmawati, Ani</dc:creator>
	<dc:creator>Syauqi, Muhammad</dc:creator>
	<dc:creator>Wahyuningsih, Mila</dc:creator>
	<dc:creator>Raimahua, Syifa Jihan</dc:creator>
	<dc:creator>Akmalia, Wilda</dc:creator>
	<dc:subject xml:lang="en-US">Carapace</dc:subject>
	<dc:subject xml:lang="en-US">fisheries</dc:subject>
	<dc:subject xml:lang="en-US">Karangantu</dc:subject>
	<dc:subject xml:lang="en-US">positive allometric</dc:subject>
	<dc:description xml:lang="en-US">Blue swimming crab (BSC) (Portunus pelagicus) is the main fisheries commodity in Banten Bay, with the highest catch of catch occurring in the west monsoon. Increased fishing efforts have reduced the catch, as indicated by a decrease in the average size of carapace width. Overfishing might influence the life cycle and population structure of the BSC. This research aims to analyze the growth and mortality of the Blue Swimming Crab in Banten Bay, especially in the west monsoon. Blue swimming crab samples were obtained from the catch of fish trap and gillnet fishermen with landing sites around the Karangantu Archipelago Fishing Port. Growth, age, and mortality were predicted based on the measurement of total carapace width and body weight. Data were analyzed using Fisat II and Microsoft Excel. The frequency distribution of carapace showed one mode class which normally was distributed consisting of only one age structure group (cohort). The relationship between carapace width and weight of males or females resulted in a slope value (b&amp;gt;3) and was positive allometric, indicating that both sexes had a faster weight gain than the increase in carapace width. Growth parameters resulted asymptotic length (L∞); male 176.75 mm and female 176.46 mm. The growth was relatively fast, with a growth coefficient value of more than one. The mortality showed that the fishing mortality value (F);in males was 3.47 /year and in females 2.69/year was greater than the natural mortality value (M); males 1.25/year and females 1.22/year. Blue Swimming Crabs in Banten Bay had overfished as shown by the high fishing mortality value and there were still many BSC that were caught below the legal size allowed. Thus, catches should be controlled to keep the population and for sustainable fisheries.</dc:description>
	<dc:publisher xml:lang="en-US">UIN Sunan Gunung Djati Bandung</dc:publisher>
	<dc:date>2023-05-30</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.uinsgd.ac.id/index.php/biodjati/article/view/22884</dc:identifier>
	<dc:identifier>10.15575/biodjati.v8i1.22884</dc:identifier>
	<dc:source xml:lang="en-US">Jurnal Biodjati; Vol. 8 No. 1 (2023): May; 69-80</dc:source>
	<dc:source xml:lang="id-ID">Jurnal Biodjati; Vol 8 No 1 (2023): May; 69-80</dc:source>
	<dc:source>2541-4208</dc:source>
	<dc:source>2548-1606</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.uinsgd.ac.id/index.php/biodjati/article/view/22884/8953</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 Jurnal Biodjati</dc:rights>
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