SPATIOTEMPORAL PATTERNS OF HIGH MARINE PRODUCTIVITY IN THE MAKASSAR STRAIT BASED ON CHLOROPHYLL-a AND SEA SURFACE TEMPERATURE IN 2005–2025

Sabilah, Anisa Aulia; Arafat, Yasser; Asia; Irwan; Fitriani, Nurul

doi:10.35911/jiks.v12i2.53702

Open access Jurnal

SPATIOTEMPORAL PATTERNS OF HIGH MARINE PRODUCTIVITY IN THE MAKASSAR STRAIT BASED ON CHLOROPHYLL-a AND SEA SURFACE TEMPERATURE IN 2005–2025

Jurnal Ilmu Kelautan SPERMONDE · Vol. UME No. MOR (2026) · pp. 1–13

DOI: 10.35911/jiks.v12i2.53702
ISSN: 2614-5049, 2460-0156
Published: 2026-11-30
Publisher: Hasanuddin University
Language: en
License: creativecommons.org/licenses/by-nc/4.0

Abstract

The Makassar Strait serves as a crucial tropical marine corridor, exhibiting spatial and seasonal variations in productivity influenced by monsoon dynamics, ocean circulation, precipitation, and nutrient availability. This research delineated the spatiotemporal patterns of elevated chlorophyll-a concentrations in the Makassar Strait from 2005 to 2025, utilizing satellite-derived chlorophyll-a and Sea Surface Temperature (SST) data. Monthly datasets from Copernicus Marine and the Climate Data Store were examined at a resolution of 0.25° × 0.25°. High-productivity hotspots were identified using the monthly 75th percentile (P75) of chlorophyll-a, while climatological patterns and Pearson correlation analyses were employed to investigate temporal variability and its association with SST. High-productivity waters were predominantly located along the East Kalimantan coastal zone and the southern Makassar Strait, with local mean chlorophyll-a concentrations surpassing 0.5 mg m⁻³. Domain-mean productivity reached a peak of approximately 0.31 mg m⁻³ in March, whereas hotspot intensity was greatest in August (P75 = 0.220 mg m⁻³). SST values ranged from 28.4 to 29.9 °C, exhibiting a significant warming trend of approximately 0.02 °C per year (p = 0.00004). Overall, SST and chlorophyll-a demonstrated a negative correlation (r = −0.469; p < 0.05), although this relationship varied across different months. The findings highlight recurring productivity hotspots and seasonal variability, which can facilitate marine productivity monitoring and further evaluation of fisheries potential in the Makassar Strait.

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19 authors · 51 co-authorship links

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Universitas Halu Oleo
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Co-author	Organisation	Joint articles
Anas Nikoyan	Universitas Halu Oleo	1
Iskandar Iskandar	Affiliation unknown	1
M Prihajatno	Affiliation unknown	1
A Nurfauzi	Affiliation unknown	1
Jumriah Langkong	Affiliation unknown	1
Abu Bakar Tawali	Affiliation unknown	1
Nandi Kuswandi Sukendar	Affiliation unknown	1
Andi Rahmayanti	Affiliation unknown	1
Lisa Angriani	Affiliation unknown	1
Meta Mahendradatta	Affiliation unknown	1
Muhammad Asfar	Affiliation unknown	1
Mulyati M Tahir	Affiliation unknown	1
. Suryani	Affiliation unknown	1
Asmayana Iwo	Affiliation unknown	1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unhas.ac.id/index.php/jiks/oai, first harvested 4 Nov 2026, last seen 4 Nov 2026.

Original metadata (oai_dc)

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	<dc:title xml:lang="en">SPATIOTEMPORAL PATTERNS OF HIGH MARINE PRODUCTIVITY IN THE MAKASSAR STRAIT BASED ON CHLOROPHYLL-a AND SEA SURFACE TEMPERATURE IN 2005–2025</dc:title>
	<dc:creator xml:lang="en">Sabilah, Anisa Aulia</dc:creator>
	<dc:creator xml:lang="en">Arafat, Yasser</dc:creator>
	<dc:creator xml:lang="en">Asia</dc:creator>
	<dc:creator xml:lang="en">Irwan</dc:creator>
	<dc:creator xml:lang="en">Fitriani, Nurul</dc:creator>
	<dc:subject xml:lang="en">chlorophyll-a</dc:subject>
	<dc:subject xml:lang="en">marine productivity</dc:subject>
	<dc:subject xml:lang="en">Makassar Strait</dc:subject>
	<dc:subject xml:lang="en">sea surface temperature</dc:subject>
	<dc:subject xml:lang="en">temporal</dc:subject>
	<dc:description xml:lang="en">The Makassar Strait serves as a crucial tropical marine corridor, exhibiting spatial and seasonal variations in productivity influenced by monsoon dynamics, ocean circulation, precipitation, and nutrient availability. This research delineated the spatiotemporal patterns of elevated chlorophyll-a concentrations in the Makassar Strait from 2005 to 2025, utilizing satellite-derived chlorophyll-a and Sea Surface Temperature (SST) data. Monthly datasets from Copernicus Marine and the Climate Data Store were examined at a resolution of 0.25° × 0.25°. High-productivity hotspots were identified using the monthly 75th percentile (P75) of chlorophyll-a, while climatological patterns and Pearson correlation analyses were employed to investigate temporal variability and its association with SST. High-productivity waters were predominantly located along the East Kalimantan coastal zone and the southern Makassar Strait, with local mean chlorophyll-a concentrations surpassing 0.5 mg m⁻³. Domain-mean productivity reached a peak of approximately 0.31 mg m⁻³ in March, whereas hotspot intensity was greatest in August (P75 = 0.220 mg m⁻³). SST values ranged from 28.4 to 29.9 °C, exhibiting a significant warming trend of approximately 0.02 °C per year (p = 0.00004). Overall, SST and chlorophyll-a demonstrated a negative correlation (r = −0.469; p &amp;lt; 0.05), although this relationship varied across different months. The findings highlight recurring productivity hotspots and seasonal variability, which can facilitate marine productivity monitoring and further evaluation of fisheries potential in the Makassar Strait.</dc:description>
	<dc:publisher xml:lang="en">Hasanuddin University</dc:publisher>
	<dc:date>2026-11-30</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unhas.ac.id/index.php/jiks/article/view/53702</dc:identifier>
	<dc:identifier>10.35911/jiks.v12i2.53702</dc:identifier>
	<dc:source xml:lang="en">Jurnal Ilmu Kelautan SPERMONDE; VOLUME 12 NOMOR 2, 2026; 1-13</dc:source>
	<dc:source>2614-5049</dc:source>
	<dc:source>2460-0156</dc:source>
	<dc:source>10.35911/jiks.v12i2</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://journal.unhas.ac.id/index.php/jiks/article/view/53702/15206</dc:relation>
	<dc:coverage xml:lang="en">The study covered the Makassar Strait. The analysis period was 2005–2025, allowing seasonal and interannual productivity patterns to be evaluated over a 21-year period.</dc:coverage>
	<dc:rights xml:lang="en">http://creativecommons.org/licenses/by-nc/4.0</dc:rights>
</oai_dc:dc>