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IDENTIFICATION OF GREEN ALGAE (CHLOROPHYTA) GENUS HALIMEDA IN THE WATERS OF MABA DISTRICT, EAST HALMAHERA

Jurnal Ilmu Kelautan SPERMONDE · Vol. UME (2024) · pp. 53–60

DOI
10.20956/jiks.v10i2.35262
ISSN
2614-5049, 2460-0156
Published
2024-08-05
Publisher
Hasanuddin University
Language
en
License
creativecommons.org/licenses/by-nc/4.0

Abstract

Halimeda is a genus of calcified alga that inhabits tropical aquatic environments. The presences of Halimeda is essential for waters around mining sites, such as the waters of Maba District, wich is the center of mining in East Halmahera. As a calcareous organism, Halimeda functions as a buffer to neutralize the pH of waters. Although the presence of Halimeda in waters is not rare, studies on Halimeda taxonomy in Indonesia are very limited. Identification of Halimeda species can be done by looking at morphological and anatomical structures as an alternative based on the key to determining Halimeda species in the Indo-Pacific by Hillis & Collinvaux (1980), in addition to looking at DNA sequences. This study was aimed at identifying Halimeda species distributed in the waters of Maba District, East Halmahera based on morphological and anatomical characteristic. Besides, it also aims to determine the distribution and similarity of species between sampling locations. Sampling was carried out using purposive sampling method. Halimeda sample collection was prepared before identification. Eight species of Halimeda were found from four sampling sites, namely Halimeda cylindracea, H. distorta, H. macroloba, H. opuntia, H. simulans, H. discoidea, H. melanesica, and H. tuna. In additional to these eight species, seven unidentified Halimeda species were also found based on morphological and anatomical characteristc. Most similarity percentage of Halimeda species was found between Tanjung Buli-Monoropo at 75% and the lowest between Gee Island-Pakal Island (0%). The distribution of Halimeda species in waters in influenced by many factors, including substrate type, nutrients, light intensity, salinity, pH, temperature, depth, wave and current action.

Keywords

Collaboration network of the authors

40 authors · 130 co-authorship links · 4 across different organisations · showing the 40 most connected

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • Universitas Sulawesi Tenggara
  • Universitas Halu Oleo
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Mahatma LanuruAffiliation unknown5
Chair RaniAffiliation unknown3
sir andersonAffiliation unknown2
Yayu A La NafieAffiliation unknown2
Supriadi MashorengAffiliation unknown2
Dody PriosambodoAffiliation unknown2
Amir Hamzah MuhiddinAffiliation unknown2
Ayu Lestari DewiUniversitas Sulawesi Tenggara1
Muh. TahirUniversitas Halu Oleo1
M YusufUniversitas Sulawesi Tenggara1
La NiasaUniversitas Sulawesi Tenggara1
Hijriani HijrianiUniversitas Sulawesi Tenggara1
Alimuddin AlimuddinAffiliation unknown1
Nofriadi NofriadiAffiliation unknown1
Fahdatul AhmadAffiliation unknown1
Latifa HanumAffiliation unknown1
Rohani Ambo-RappeAffiliation unknown1
Nurjannah NurdinAffiliation unknown1
Muhammad Banda SelamatAffiliation unknown1
Arsyi Dafa MaulidanAffiliation unknown1
BesperiAffiliation unknown1
Agustin GunawanAffiliation unknown1
Gusta GunawanAffiliation unknown1
Rohani Ambo RappeAffiliation unknown1
Yayu A La NafieAffiliation unknown1
Muh. Banda SelamatAffiliation unknown1
Rasyid JalilAffiliation unknown1
Muh HattaAffiliation unknown1
Muh LukmanAffiliation unknown1
Dian WahyuAffiliation unknown1
AndriyantoAffiliation unknown1
Yazmendra RosaAffiliation unknown1
Amran SaruAffiliation unknown1
Mardi MardiAffiliation unknown1
Nadiarti NurdinAffiliation unknown1
Yusran Nurdin MassaAffiliation unknown1

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) 
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en">IDENTIFICATION OF GREEN ALGAE (CHLOROPHYTA) GENUS HALIMEDA IN THE WATERS OF MABA DISTRICT, EAST HALMAHERA</dc:title>
	<dc:creator xml:lang="en">Ananda, Wilya </dc:creator>
	<dc:creator xml:lang="en">Amri, Khairul</dc:creator>
	<dc:creator xml:lang="en">Supriadi, Supriadi</dc:creator>
	<dc:creator xml:lang="en">Yasir, Inayah</dc:creator>
	<dc:subject xml:lang="en">Halimeda</dc:subject>
	<dc:subject xml:lang="en">Identification</dc:subject>
	<dc:subject xml:lang="en">Morphological</dc:subject>
	<dc:subject xml:lang="en">Anatomical</dc:subject>
	<dc:description xml:lang="en">Halimeda is a genus of calcified alga that inhabits tropical aquatic environments. The presences of Halimeda is essential for waters around mining sites, such as the waters of Maba District, wich is the center of mining in East Halmahera. As a calcareous organism, Halimeda functions as a buffer to neutralize the pH of waters. Although the presence of Halimeda in waters is not rare, studies on Halimeda taxonomy in Indonesia are very limited. Identification of Halimeda species can be done by looking at morphological and anatomical structures as an alternative based on the key to determining Halimeda species in the Indo-Pacific by Hillis &amp;amp; Collinvaux (1980), in addition to looking at DNA sequences. This study was aimed at identifying Halimeda species distributed in the waters of Maba District, East Halmahera based on morphological and anatomical characteristic. Besides, it also aims to determine the distribution and similarity of species between sampling locations. Sampling was carried out using purposive sampling method. Halimeda sample collection was prepared before identification. Eight species of Halimeda were found from four sampling sites, namely Halimeda cylindracea, H. distorta, H. macroloba, H. opuntia, H. simulans, H. discoidea, H. melanesica, and H. tuna. In additional to these eight species, seven unidentified Halimeda species were also found based on morphological and anatomical characteristc. Most similarity percentage of Halimeda species was found between Tanjung Buli-Monoropo at 75% and the lowest between Gee Island-Pakal Island (0%). The distribution of Halimeda species in waters in influenced by many factors, including substrate type, nutrients, light intensity, salinity, pH, temperature, depth, wave and current action.</dc:description>
	<dc:publisher xml:lang="en">Hasanuddin University</dc:publisher>
	<dc:date>2024-08-05</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/35262</dc:identifier>
	<dc:identifier>10.20956/jiks.v10i2.35262</dc:identifier>
	<dc:source xml:lang="en">Jurnal Ilmu Kelautan SPERMONDE; VOLUME 10 NUMBER 2, 2024; 53-60</dc:source>
	<dc:source>2614-5049</dc:source>
	<dc:source>2460-0156</dc:source>
	<dc:source>10.20956/jiks.v10i2</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://journal.unhas.ac.id/index.php/jiks/article/view/35262/11808</dc:relation>
	<dc:coverage xml:lang="en">This study includes data on Halimeda species distributed in the waters of Maba district, East Halmahera and identified based on morphological and anatomical characteristics based on the determination key of Hillis &amp; Coolinvaux (1980).</dc:coverage>
	<dc:rights xml:lang="en">http://creativecommons.org/licenses/by-nc/4.0</dc:rights>
</oai_dc:dc>