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Spatial and Temporal Distribution of Blue Swimming Crab Larvae (Portunus pelagicus) in The Conservation Area of Betahwalang, Central Java

ILMU KELAUTAN: Indonesian Journal of Marine Sciences · Vol. 25 No. 4 (2020) · hlm. 173–178

DOI
10.14710/ik.ijms.25.4.173-178
ISSN
2406-7598, 0853-7291
Terbit
2020-11-26
Penerbit
Marine Science Department Diponegoro University
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-sa/4.0

Abstrak

Betahwalang has been one of the main contributors to the Blue Swimming Crab (BSC, Portunus pelagicus) fisheries production in Central Java Province. Recruitment of the BSC depends to a large extend on the abundance of crab larvae. However, information on larval distribution of the crab affecting the recruitment to the fishery, fishery management and decision making to support crab conservation in Betahwalang area has been lacking. The purpose of this study is to describe the spatial and temporal distribution of BSC larvae in the crab conservation area, to identify the larval stage most commonly occurs in the conservation area, and to develop process of decision making to managing conservation areas. This study was conducted in twelve months, starting from January until December 2018. The spatial distribution of the crab larvae was analyzed and mapped by means of SPSS and ArcGIS. The results of this study indicate that the crab larvae occur in the conservation area throughout the year. The highest larval abundance of the crab occurs in May, September, and November. The most commonly found crab larval stages were megalopa. As megalopa and crablet stages are relatively much more active and closer to the adult form, their occurrence in the conservation area and throughout the year of 2018 suggests the existence of continuous support to the Blue Swimming Crab recruitment for the following year. The spatial and temporal distribution of the larvae were influenced by oceanographic parameters including temperature, nitrate and phosphate, which were associated with monsoonal changes in the Java Sea.

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  • Diponegoro University
  • Cenderawasih University
  • Université de Bretagne Sud
  • National Oceanic and Atmospheric Administration
  • Ministry of Marine Affairs and Fisheries
  • Universitas Halu Oleo
  • Sebelas Maret University
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Rekan penulisOrganisasiArtikel bersama
Hermin Pancasakti KusumaningrumDiponegoro University8
Retno HartatiDiponegoro University7
Hadi EndrawatiDiponegoro University6
Ambariyanto AmbariyantoDiponegoro University6
Widianingsih WidianingsihDiponegoro University4
Anindya WirasatriyaDiponegoro University3
Ita RiniatsihDiponegoro University3
Ria AzizahDiponegoro University3
Agus IndarjoDiponegoro University2
Galung Dhiva MaharaniDiponegoro University2
Chrisna Adhi SuryonoDiponegoro University2
Ervia YudiatiDiponegoro University2
Denny Nugroho SugiantoDiponegoro University2
Djoko SupraptoDiponegoro University2
Lolita Lolita TuhumenaAfiliasi tidak diketahui1
Imam MishbachCenderawasih University1
Lalu Panji Imam AgamawanCenderawasih University1
Baigo HamunaCenderawasih University1
Liyatin GeaCenderawasih University1
Agus TriantoDiponegoro University1
Dwi Lestari Widya NingsihDiponegoro University1
Rexie P. MagdugoUniversité de Bretagne Sud1
Anicia Q. HurtadoAfiliasi tidak diketahui1
Christel MartyUniversité de Bretagne Sud1
Nathalie BourgougnonUniversité de Bretagne Sud1
S. SuryonoDiponegoro University1
Suryono SuryonoDiponegoro University1
Novita Ayu RyandhiniAfiliasi tidak diketahui1
Anastasia Rita Tisiana D. K.Ministry of Marine Affairs and Fisheries1
Syukur SyukurUniversitas Halu Oleo1
Zhulian Hikmah HasibuanDiponegoro University1
Purwanto PurwantoSebelas Maret University1

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Sumber metadata: OAI-PMH (metadata jurnal) http://ejournal.undip.ac.id/index.php/ijms/oai, pertama di-harvest 8 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Spatial and Temporal Distribution of Blue Swimming Crab Larvae (Portunus pelagicus) in The Conservation Area of Betahwalang, Central Java</dc:title>
	<dc:creator>Redjeki, Sri</dc:creator>
	<dc:creator>Zainuri, Muhammad</dc:creator>
	<dc:creator>Widowati, Ita</dc:creator>
	<dc:creator>Ghofar, Abdul</dc:creator>
	<dc:creator>Agus, Elsa Lusia</dc:creator>
	<dc:creator>Mustagfirin, Mustagfirin</dc:creator>
	<dc:creator>Ayodya, Fabian Panji</dc:creator>
	<dc:creator>Abbey, Michael</dc:creator>
	<dc:subject xml:lang="en-US">Betahwalang; Larvae; Portunus pelagicus; distribution; conservation area</dc:subject>
	<dc:description xml:lang="en-US">Betahwalang has been one of the main contributors to the Blue Swimming Crab (BSC, Portunus pelagicus) fisheries production in Central Java Province. Recruitment of the BSC depends to a large extend on the abundance of crab larvae. However, information on larval distribution of the crab affecting the recruitment to the fishery, fishery management and decision making to support crab conservation in Betahwalang area has been lacking.  The purpose of this study is to describe the spatial and temporal distribution of BSC larvae in the crab conservation area, to identify the larval stage most commonly occurs in the conservation area, and to develop process of decision making to managing conservation areas. This study was conducted in twelve months, starting from January until December 2018. The spatial distribution of the crab larvae was analyzed and mapped by means of SPSS and ArcGIS. The results of this study indicate that the crab larvae occur in the conservation area throughout the year.  The highest larval abundance of the crab occurs in May, September, and November. The most commonly found crab larval stages were megalopa. As megalopa and crablet stages are relatively much more active and closer to the adult form, their occurrence in the conservation area and throughout the year of 2018 suggests the existence of continuous support to the Blue Swimming Crab recruitment for the following year. The spatial and temporal distribution of the larvae were influenced by oceanographic parameters including temperature, nitrate and phosphate, which were associated with monsoonal changes in the Java Sea.</dc:description>
	<dc:publisher xml:lang="en-US">Marine Science Department Diponegoro University</dc:publisher>
	<dc:date>2020-11-26</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"></dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejournal.undip.ac.id/index.php/ijms/article/view/33766</dc:identifier>
	<dc:identifier>10.14710/ik.ijms.25.4.173-178</dc:identifier>
	<dc:source xml:lang="en-US">ILMU KELAUTAN: Indonesian Journal of Marine Sciences; Vol 25, No 4 (2020): Ilmu Kelautan; 173-178</dc:source>
	<dc:source>2406-7598</dc:source>
	<dc:source>0853-7291</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejournal.undip.ac.id/index.php/ijms/article/view/33766/pdf</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2020 ILMU KELAUTAN: Indonesian Journal of Marine Sciences</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-sa/4.0</dc:rights>
</oai_dc:dc>