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Relationship Between Environmental Parameters and Manta Ray Occurrence in Raja Ampat Archipelago, Indonesia

ILMU KELAUTAN: Indonesian Journal of Marine Sciences · Vol. 29 No. 1 (2024) · hlm. 37–47

DOI
10.14710/ik.ijms.29.1.37-47
ISSN
2406-7598, 0853-7291
Terbit
2024-03-27
Penerbit
Marine Science Department Diponegoro University
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-sa/4.0

Abstrak

Understanding the influence and impact of environmental factors on manta ray sightings is critical to understanding the spatial and temporal ecology of a highly mobile species. Therefore, this study aims to determine the influence and impact of environmental factors as indicated by the parameters of wind speed, chlorophyll-a, SST, salinity, pH, dissolved oxygen, and the number of phytoplankton and zooplankton species. The mapped chlorophyll-a was re-analyzed based on the seasonal period throughout 2021 downloaded from marine copernicus and analyzed by kriging method. The influence and effects of environmental parameters on the short-term appearance of eye rays were studied using an adaptive model (GAM). The analysis showed a significant influence of environmental factors on manta ray sightings in Raja Ampat, namely Calanoid spp, Oithona nana, Acartia clausi, Calanus helgoladicus, and Oithona brevicornis. Based on this model, zooplankton is an important parameter that can describe the influence of environmental parameters on manta ray sightings at observation points in Raja Ampat MPA. The results of the reanalysis of chlorophyll-a concentrations were highest in the eastern to transitional seasons, which were scattered on the west side of Raja Ampat waters. Meanwhile, chlorophyll-a concentrations were low in the west to transitional season on the east side. This mechanism may drive the foraging strategy of manta rays, which visit shallow waters where zooplankton density and biomass are abundant. Adopting the BHS MPA network concept, as it has been implemented, would be in line with broader conservation expectations for the sustainability of manta rays in Raja Ampat.

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  • Universitas Papua
  • IPB University
  • Universitas Maritim Raja Ali Haji
  • Khairun University
  • Hasanuddin University
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  • Organisasi berbeda
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Tampilkan sebagai tabel
Rekan penulisOrganisasiArtikel bersama
Tri PrartonoIPB University4
Indra JayaIPB University4
Salnuddin SalnuddinKhairun University4
Yubelince Y. RuntuboiUniversitas Papua2
Hawis H MadduppaIPB University2
Beginer SubhanIPB University2
Lalu M. Iqbal SaniIPB University2
Alan Frendy KoropitanIPB University2
Etty RianiIPB University2
Ario DamarIPB University2
Neviaty Putri ZamaniIPB University2
Fery KurniawanIPB University2
Winny Retna MelaniAfiliasi tidak diketahui1
Tri ApriadiAfiliasi tidak diketahui1
Wahyu MuzammilAfiliasi tidak diketahui1
Deni SabriyatiAfiliasi tidak diketahui1
Sepus M. FatemUniversitas Papua1
Jonni MarwaUniversitas Papua1
Yaved SyufUniversitas Papua1
Josepina BaruUniversitas Papua1
Viktor TawerAfiliasi tidak diketahui1
Saur SitumorangAfiliasi tidak diketahui1
Budi PrabowoIPB University1
Inna Puspa AyuIPB University1
Riskayanti RiskayantiHasanuddin University1
Deny Anjelus IyaiUniversitas Papua1
Vapriel Andhika PattikawaUniversitas Papua1
Stepani F. HaryatiUniversitas Papua1
Azchar Prianka P.Universitas Papua1
Rizki PrasetyaUniversitas Papua1
Meky SagrimUniversitas Papua1
Fitri Armianti AriefUniversitas Papua1
Ditasari AmaliaUniversitas Papua1
Juni Claudia DamiUniversitas Papua1

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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">Relationship Between Environmental Parameters and Manta Ray Occurrence in Raja Ampat Archipelago, Indonesia</dc:title>
	<dc:creator>Runtuboi, Ferawati</dc:creator>
	<dc:creator>Bengen, Dietriech Geoffrey</dc:creator>
	<dc:creator>Nurjaya, I Wayan</dc:creator>
	<dc:creator>Natih, Nyoman Metta N</dc:creator>
	<dc:creator>Zulfikar, Andi</dc:creator>
	<dc:creator>Beale, Calvin S.</dc:creator>
	<dc:subject xml:lang="en-US">Environment; GAMs; Hotspots; Parameters; Zooplankton</dc:subject>
	<dc:description xml:lang="en-US">Understanding the influence and impact of environmental factors on manta ray sightings is critical to understanding the spatial and temporal ecology of a highly mobile species. Therefore, this study aims to determine the influence and impact of environmental factors as indicated by the parameters of wind speed, chlorophyll-a, SST, salinity, pH, dissolved oxygen, and the number of phytoplankton and zooplankton species. The mapped chlorophyll-a was re-analyzed based on the seasonal period throughout 2021 downloaded from marine copernicus and analyzed by kriging method. The influence and effects of environmental parameters on the short-term appearance of eye rays were studied using an adaptive model (GAM). The analysis showed a significant influence of environmental factors on manta ray sightings in Raja Ampat, namely Calanoid spp, Oithona nana, Acartia clausi, Calanus helgoladicus, and Oithona brevicornis. Based on this model, zooplankton is an important parameter that can describe the influence of environmental parameters on manta ray sightings at observation points in Raja Ampat MPA. The results of the reanalysis of chlorophyll-a concentrations were highest in the eastern to transitional seasons, which were scattered on the west side of Raja Ampat waters. Meanwhile, chlorophyll-a concentrations were low in the west to transitional season on the east side. This mechanism may drive the foraging strategy of manta rays, which visit shallow waters where zooplankton density and biomass are abundant. Adopting the BHS MPA network concept, as it has been implemented, would be in line with broader conservation expectations for the sustainability of manta rays in Raja Ampat.</dc:description>
	<dc:publisher xml:lang="en-US">Marine Science Department Diponegoro University</dc:publisher>
	<dc:date>2024-03-27</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/57129</dc:identifier>
	<dc:identifier>10.14710/ik.ijms.29.1.37-47</dc:identifier>
	<dc:source xml:lang="en-US">ILMU KELAUTAN: Indonesian Journal of Marine Sciences; Vol 29, No 1 (2024): Ilmu Kelautan; 37-47</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/57129/pdf</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2024 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>