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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences ILMU KELAUTAN: Indonesian Journal of Marine Sciences Bioma : Berkala Ilmiah Biologi Jurnal Ilmu Lingkungan Aquacoastmarine bionature BIOTROPIA - The Southeast Asian Journal of Tropical Biology ASPIRATOR Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Majalah Geografi Indonesia Biogenesis: Jurnal Ilmiah Biologi AGRIVITA, Journal of Agricultural Science Global Medical and Health Communication Journal of Tropical Biodiversity and Biotechnology Jurnal Bioedukasi Journal of the Civil Engineering Forum Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Biosaintifika: Journal of Biology & Biology Education Indonesian Aquaculture Journal Jurnal Ecolab Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Jurnal Geologi Kelautan: Media Hasil Penelitian Geologi Kelautan Scripta Biologica Jurnal Wana Tropika Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) Jurnal Ilmu Kehutanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Interdisciplinary International Journal of Conservation and Culture AQUACOASTMARINE: Journal of Aquatic & Fisheries Sciences Berkala Ilmiah Biologi Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Jurnal Wana Tropika Berita Biologi
SUWARNO HADISUSANTO
Faculty Of Biology, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Arts Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Education Engineering Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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Diatom dan Paleolimnologi: Studi Komparasi Perjalanan Sejarah Danau Lac Saint-Augustine Quebeq-City, Canada dan Danau Rawa Pening Indonesia Tri Retnaningsih Soeprobowati; Suwarno Hadisusanto
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 14, No 1 (2009): February 2009
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v14i1.2635

Abstract

Diatoms are a micro-alga dominates in the aquatic ecosystem. Their silicious cell wall able to preserve death diatoms in the sediment for long periods of time, therefore, diatoms have an important role in the paleolimnological analysis. Diatoms assemblages in the sediment layer express the water quality whenever the diatom lives. This article provides information how to apply diatom on the paleo-limnological analysis, supporting with the case study in the Lac Saint-Augustine Quebec-City Canada and Rawa Pening Lake Indonesia. Modern diatom and the water quality from spatial and temporal range are used as a calibration set. The diatoms of below layers, then, Weighted Averaging (WA) with the calibration set to reconstruct the water quality in the past. Previously, both in Canada and Indonesia, those lakes were oligotrophic and sharply change into eutrophic condition since a lot of human activities developed around the lakes (anthropogenic factors). Naturally, the maturity of lake can not avoid and the succession had been fast by eutrophication. Paleolimnological approach provides baseline data in the past to develop the appropriate lake management.
Rafflesia patma Blume in Pananjung Pangandaran Nature Reserve, West Java: Population Structure, Distribution Patterns, and Environmental Influences Bahana Aditya Adnan; Suwarno Hadisusanto; Purnomo Purnomo
Journal of Tropical Biodiversity and Biotechnology Vol 6, No 3 (2021): December
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.64800

Abstract

Rafflesia patma is an endemic plant of Pangandaran, West Java which is protected because of its rare status. The purpose of this research is to study the population structure, distribution patterns, and the effect of the physical environment of abundance R. patma in Pananjung Pangandaran Nature Reserve, West Java. The method used in this research was a survey method with a purposive sampling technique. Sampling was conducted using quadrat plots. The population pattern distribution was defined by a standardized Morisita index, and the analysis of abiotic environmental factors was determined by Principal Component Analysis (PCA) using PAST3. The results showed that there were 114 R. patma individuals scattered in several research areas in Pananjung Pangandaran Nature Reserve, they were Gua Parat (3 individuals), Cilegon (13 individuals), Pasir Putih (12 individuals), Badeto (48 individuals), and Curug Leutik (38 individuals). The distribution pattern of R. patma in Pananjung Pangandaran Nature Reserve was clustered with the Morisita index value (Id) > 1. Based on the PCA analysis, results that support the classification of the cluster analysis were obtained. Based on four abiotic environmental conditions analyzed, the most dominant character in influencing the distribution patterns and population structure of R. patma is light intensity. 
Sebaran Nyamuk Pradewasa Berdasarkan Tipe Ekosistem dan Habitat Spesifik di Kabupaten Pandeglang Provinsi Banten Arda dinata; Endang Puji Astuti; Suwarno Hadisusanto
ASPIRATOR - Journal of Vector-borne Disease Studies Vol 12 No 2 (2020): Jurnal Aspirator Volume 12 Nomor 2 2020
Publisher : Loka Litbang Kesehatan Pangandaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (905.791 KB) | DOI: 10.22435/asp.v12i2.2270

Abstract

Abstract. The vector-borne disease remains a health problem in Pandeglang District. Entomological data is important in the strategy of controlling the vector-borne disease. This study aimed to determine the distribution of mosquito larvae based on specific habitat and ecosystem typea. This research is a secondary data analysis of Rikhus Vektora 2016 in Pandeglang, Banten Province. This type of observational research with cross-sectional study design. The purposive sampling technique is used based on geographical and ecosystem stratification. We found 12 types of environments of the six types of ecosystems (HDP, HJP, NHDP, NHJP, PDP, and PJP) that had larvae: forest (secondary, homogeneous, and coastal); lagoon; brackish water swamp; bamboo clumps; rice fields; plantations; and residential areas. The most ecosystem types were larvae in HJP (160 larvae) and the least larvae in NHDP (9 larvae). Species of larvae are 16 types: rice fields (Cx. vishui, Cx. tritaeniorhynchus, An. barbirostris); small hole in the ground (Anopheles sp., Culex sp.); coconut shell (Ae. albopictus, Ar. malayi, Ar. kuchingensis, Malaya sp, Culex sp.); armpit taro leaves and banana leaves (Ae. albopictus, Malaya genurostris); freshwater swamp (Cx. vishnui, Cx. gelidus) and brackish water (Anopheles sp.); riverside (Anopheles sp., Cx. quinquefasciatus); ditch (Culex sp.); pool (Cx. quinquefasciatus); lagoon (Anopheles sp., Culex sp.); bamboo stumps (Ae. albopictus); Limnocharis flava garden (Culex sp.); and used bottles (Ae. albopictus). The characteristics of larvae habitat: temperature (25-33oC); pH 8-9 (67.3%); light intensity (115-32,000 lux); vegetation (12.7%); algae (3.6%); water is temporary (61.6%), inundated (78.2%) and clear (50,9%). Abstrak. Penyakit tular vektor masih menjadi masalah kesehatan di Kabupaten Pandeglang. Data vektor penting dalam strategi pengendalian penyakit tular vektor. Tujuan penelitian ini untuk mengetahui sebaran jentik nyamuk berdasarkan habitat spesifik dan tipe ekosistem. Penelitian ini merupakan analisa data sekunder Rikhus Vektora 2016 di Kabupaten Pandeglang Provinsi Banten. Jenis penelitian observasional dengan rancangan studi potong lintang. Teknik purposive sampling, digunakan berdasarkan stratifikasi geografis dan ekosistem. Didapatkan 12 jenis lingkungan yang berhasil diidentifikasi dari enam tipe ekosistem (HDP, HJP, NHDP, NHJP, PDP, dan PJP) dengan jentik, yaitu: hutan (sekunder, homogen, pantai); laguna; rawa air payau; rumpun bambu; sawah; perkebunan (salak, pisang, kelapa, kopi); daerah pemukiman. Tipe ekosistem terbanyak jentik di HJP (160 jentik) dan sedikit jentik di NHDP (9 jentik). Habitat spesifik jentik ada 16 jenis, yaitu: sawah (Cx. vishui, Cx. tritaeniorhynchus, An. barbirostris); kobakan (Anopheles sp., Culex sp.); tempurung kelapa (Ae. albopictus, Ar. malayi, Ar. kuchingensis, Malaya sp., Culex sp.); ketiak daun talas dan daun pisang (Ae. albopictus, Malaya genurostris); rawa air tawar (Cx. vishnui, Cx. gelidus) dan air payau (Anopheles sp.); tepi sungai (Anopheles sp., Cx. quinquefasciatus); parit (Culex sp.); kolam (Cx. quinquefasciatus); laguna (Anopheles sp., Culex sp.); tunggul bambu (Ae. albopictus); kebun genjer (Culex sp.); serta botol bekas (Ae. albopictus). Karakteristik habitat jentik pada: suhu (25-33oC); pH 8-9 (67,3%); intensitas cahaya (115-32.000 lux); vegetasi(12,7%); alga (3,6%); air bersifat sementara (61,6%), tergenang (78,2%) dan jernih (50,9%).
Pengujian Toksisitas Lindi Instalasi Pengolahan Lindi TPA Piyungan pada Daphnia sp. dengan Whole Effluent Toxicity Ika Bayu Kartikasari; M Widyastuti; Suwarno Hadisusanto
Jurnal Ilmu Lingkungan Vol 18, No 2 (2020): Agustus 2020
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.18.2.297-304

Abstract

Lindi adalah rembesan yang melalui tumpukan sampah hasil endapan yang berada di bawah landfill yang terakumulasi yang terdiri dari bahan organik dan anorganik. Lindi hasil pengolahan IPL TPA Piyungan masih memiliki potensi pencemaran lindi menjadi permasalahan yang masih memiliki nilai toksisitas yang tinggi. Perlu adanya pengukuran toksisitas untuk mengetahui pengaruh pencemaran lindi terhadap lingkungan. Penelitian ini bertujuan untuk: (1) melakukan analisis efektivitas hasil pengolahan lindi di IPL TPA Piyungan, dan (2) melakukan pengujian toksisitas akut dengan WET (Whole Effluent Toxicity) menggunakan Daphnia sp. pada pengolahan lindi. Metode penelitian yang digunakan dalam penelitian ini yakni melakukan uji laboratorium pada parameter pengolahan lindi yang disesuaikan dengan permen LHK No. 59 tahun 2016 untuk pengukuran efektivitas pengolahan lindi, uji LC50 untuk mengetahui tingkat tokisitas akut pada influen dan efluen pengolahan lindi. proses pengolahan lindi TPA Piyungan terdiri dari Kolam Sedimentasi, Aerasi, dan Desinfeksi. Hasil dari penelitian ini menunjukkan bahwa (1) Efektivitas pengolahan lindi TPA Piyungan pada parameter berturut-turut TSS 56 %; BOD 82 %; COD 0 %; TN 41,67%; dan Hg 14 %. Hasil efektivitas pengolahan lindi tersebut tidak mempengaruhi peningkatan perbaikan kualitas lindi yang disesuaikan Peraturan Menteri LHK No 59/Menlhk/Setjen/Kum.1/7/2016 masih melebihi baku mutu yang telah ditetapkan kecuali parameter BOD, (2) Toksisitas lindi TPA Piyungan dikategorikan Very High Acute Toxicity pada influen dan High Acute Toxicity efluen IPL Piyungan. Kematian 50% populasi daphnia untuk contoh uji influen IPL Piyungan sebesar 0,482% dengan Toxic Unit acute (TUa) sebesar 203,33. Contoh uji efluen IPL Piyungan sebesar 2,752% dengan Toxic Unit acute (TUa) sebesar 36,33.
WATER QUALITY STUDY BASED ON MEIOFAUNA ABUNDANCE AND POLLUTION INDEX IN THE COASTAL ZONE OF LOSARI BEACH, MAKASSAR Muhammad Sri Yusal; Muh Aris Marfai; Suwarno Hadisusanto; Nurul Khakhim
Jurnal Ilmu Lingkungan Vol 17, No 1 (2019): April 2019
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (340.143 KB) | DOI: 10.14710/jil.17.1.172-180

Abstract

The coastal zone of Losari Beach is located in a strategic position and rich in potential coastal resources, but the high density of human activities has decreased the quality of the surrounding waters.This study aimed to examine water quality based on meiofauna abundance and pollution index in the coastal zone of Losari Beach, Makassar. It employed a quantitative descriptive approach with purposive sampling method. The identified total meiofauna abundance was117,176 individuals/m2consisting of 138 species from 13 phyla. Ostracoda, olygochaeta, sarcomastigophora, ciliophora, and polychaetawere phyla with the highest abundance because of their high adaptability to polluted aquatic conditions. Meanwhile, tardigrada and aelosomatidaewere found in very low abundance because both phyla only thrive in pollution-free environments and have a pattern of high migration flow from one habitat to another. As for aelosomatidae, the habitat of its speciesis limitedto brackish or saline waters. A good-quality aquatic environment is a habitat for all benthic organisms and enables their even distribution. It explains the discovery of true and temporary meiofauna with uniform or even compositions in the bottom of the waters. The waters in the coastal zone of Losari Beach are heavily polluted. The stationslocated around the traditional Paotere harbor, hotels, restaurants, Losari Beach Platforms, the waste disposal outlets of Stella Maris Hospital, Fort Rotterdam canals, and Jeneberang River mouthhad very high pollution index. Some of these stations had low meiofauna abundance levels, and the poor water quality in their surroundings was caused by anthropogenic activity. Even though the area around TanjungMerdeka Beach had relatively low pollution index, it was categorized as severely contaminated because the index score was >10.
Phylogenetic Analysis of Culex tritaeniorhynchus and Culex vishnui Vector of Japanese Encephalitis Virus Raden Roro Upiek Ngesti Wibawaning Astuti; Raden Wisnu Nurcahyo; R.C. Hidayat Soesilohadi; Suwarno Hadisusanto; Budi Mulyaningsih
Global Medical & Health Communication (GMHC) Vol 7, No 3 (2019)
Publisher : Universitas Islam Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (588.046 KB) | DOI: 10.29313/gmhc.v7i3.4051

Abstract

Culex tritaeniorhynchus and Culex vishnui are medically essential mosquitoes that transmit the Japanese encephalitis (JE) virus. There is less information about the recording data and research due to genetic character differences among them. The objective of this study was to examine the genetic variation of Cx. tritaeniorhynchus and Cx. vishnui in 3 sites of Central Java using polymerase chain reaction randomly amplified polymorphic DNA (PCR-RAPD). The study was done in January to November 2017 in Pekalongan city, Pekalongan regency, and Semarang regency. Adult female mosquitoes collected by human bite method. DNA of ten Cx. tritaeniorhynchus samples and fifteen samples of Cx. vishnui purified using DNA extraction kit. Furthermore, PCR amplification was conducted with 5 RAPD primers (OPA 11, 12, 15, 16, and 20) and would run into 2% gel electrophoresis for 45 minutes. Cluster analysis was using MVSPTM software (version 3.1). The results showed 213 genetic characters of Cx. vishnui, while 142 characters shown by Cx. tritaeniorhynchus. The dendrograms showed three distinct groups of Cx. vishnui from 2 sites of Pekalongan and one site of Semarang, while Cx. tritaeniorhynchus showed two distinct groups, which were 1 group from Pekalongan and 1 group from Semarang. Low genetic similarity (<10%) shown Cx. vishnui from Pekalongan city and Pekalongan district, and there was no genetic similarity in Cx. tritaeniorhynchus from Pekalongan and Semarang. It concluded that the polymorphism of Cx. tritaeniorhynchus and Cx. vishnui reached 100%. ANALISIS FILOGENETIK CULEX TRITAENIORHYNCHUS DAN CULEX VISHNUI VEKTOR VIRUS JAPANESE ENCEPHALITISNyamuk Culex tritaeniorhynchus dan Culex vishnui memiliki peran penting di bidang medis terutama dalam penularan virus Japanese  encephalitis (JE). Sampai saat ini data dan riset tentang karakter genetik vektor JE masih sangat terbatas. Penelitian ini bertujuan menjelaskan variasi genetik Cx. tritaeniorhynchus dan Cx. vishnui di 3 lokasi di Jawa Tengah berdasar polymerase chain reaction randomly amplified polymorphic DNA (PCR-RAPD). Studi ini dilakukan dari bulan Januari sampai November 2017 di Kota Pekalongan, Kabupaten Pekalongan, dan Kabupaten Semarang. Metode human bite digunakan untuk koleksi nyamuk. Ekstraksi DNA nyamuk dilakukan pada 10 ekor Cx. tritaeniorhynchus dan 15 ekor Cx. vishnui menggunakan kit ekstraksi DNA. Selanjutnya, diamplifikasi dengan 5 macam primer RAPD (OPA 11, 12, 15, 16, dan 20), serta dielektroforesis pada 2% agar selama 45 menit. Analisis klaster dilakukan menggunakan program MVSPTM (versi 3.1). Ditemukan 213 dan 142 karakter genetik masing-masing pada Cx. vishnui dan Cx. tritaeniorhynchus. Analisis dendogram menunjukkan 3 grup yang berbeda untuk Cx. vishnui, sedangkan untuk Cx. tritaeniorhynchus terdapat 2 grup yang berbeda, yaitu 1 grup dari Pekalongan dan 1 grup dari Semarang. Similaritas genetik yang rendah (<10%) ditunjukkan Cx. vishnui dari Kota Pekalongan dan Kabupaten Pekalongan, bahkan tidak ada persamaan genetik pada Cx. tritaeniorhynchus dari Pekalongan dengan Semarang. Disimpulkan bahwa polimorfisme Cx. tritaeniorhynchus dan Cx. vishnui mencapai 100%.
Beberapa aspek pemijahan ikan brek Puntius orphoides (Valenciennes, 1842) di Sungai Klawing Purbalingga, Jawa Tengah [Spawning aspects of javaen barb Puntius orphoides (Valenciennes, 1842) in Klawing River, Purbalingga, Central Java] Suhestri Suryaningsih; Mammed Sagi; Kamiso Handoyo Nitimulyo; Suwarno Hadisusanto
Jurnal Iktiologi Indonesia Vol 12 No 1 (2012): Juni 2012
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v12i1.128

Abstract

The aim of this study is to analyze the spawning pattern and fecundity of the javaen barb (Puntius orphoides). Samples were collected during one year, from June 2009 until May 2010. Fish caught by gillnet with long-stemmed and fish trap in Klawing River, Purbalingga, Central Java. Analysis was done to estimate gonado somatic indices, gonad maturity, fecundity, and frequency of oocyte diameter distribution. The javaen barb caught were 431 fishes, consisted of 200 male and 231 female, with varied total length in the range of 95-294 mm, and weight 12.0-276.4 grams. First maturity gonad of male fish was 109 mm TL, while female fish was 118 mm TL. According to analysis of gonado somatic indices and gonad maturity stages, fish was estimated to spawn in the long time with its peak in September-October. Fecundity was 7,379-39,794 oocytes, and oocyte diameter was 25-900 ^m. Based on the development of oocyte stages, the javaen barb have an asynchronous spawning pattern, and based on the distribution of oocyte diameter suggested that this species could be grouped as partial spawner. AbstrakPenelitian ini bertujuan menganalisis beberapa aspek pemijahan dan fekunditas ikan brek (Puntius orphoides). Peng-ambilan contoh dilakukan selama satu tahun, dari Juni 2009 sampai Mei 2010. Ikan ditangkap menggunakan seser ber-tangkai panjang dan bubu, di Sungai Klawing, Purbalingga, Jawa Tengah. Analisis dilakukan terhadap indeks gonado somatik, tingkat kematangan gonad, fekunditas, dan sebaran diameter oosit. Ikan brek yang diperoleh selama penelitian berjumlah 431 ekor, terdiri atas 200 ikan jantan dan 231 ikan betina, dengan kisaran panjang total 95-294 mm, dan bo-bot 12,0-276,4 gram. Pada ikan brek betina, gonad mulai berkembang pada panjang total 118 mm, dan ikan jantan 109 mm. Atas dasar analisis nilai indeks gonado somatik dan fase perkembangan oosit pada tingkat kematangan gonad, di-duga musim pemijahan ikan brek berlangsung lama tetapi puncak reproduksi terjadi pada bulan September-Oktober. Fekunditas ikan brek berkisar 7.379-39.794 butir dan diameter oosit 25-900 ^m. Atas dasar analisis fase perkembangan oosit pada tingkat kematangan gonad ikan brek memiliki pola pemijahan asynchronous spawner dan atas dasar sebaran diameter oosit memberikan gambaran bahwa spesies ini termasuk tipe pemijah bertahap.
Water Quality Index Performance for River Pollution Control Based on Better Ecological Point of View (A Case Study in Code, Winongo, Gadjah Wong Streams) Sri Puji Saraswati; Mochammad Venly Ardion; Yul Hendro Widodo; Suwarno Hadisusanto
Journal of the Civil Engineering Forum Vol. 5 No. 1 (January 2019)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (862.823 KB) | DOI: 10.22146/jcef.41165

Abstract

The quality of river water quality monitoring data sometimes can be inaccurate. Evaluation of the effectiveness of water pollution control programs needs good quality data to calculate the Water Quality Index (WQI) with the aim to meet the requirement to protect biodiversity and maintain various water functions. Thirty-five water quality variables from Code, Gadjah Wong, and Winongo rivers were taken as data, conducted by Environmental Agency of Yogyakarta in 2004 – 2015. There were only 19 out of 35 water quality variables having good data after improvement of monitoring data, transformation/standardization and analysis of the significant water quality variables with PCA (Principle Component Analysis) and Factor Analysis (FA). WQIs formula in the three rivers used the same 5 significant variables i.e. EC, DO, COD, NH3N, Total Coliform, and "weighted sum index” as the sub-index aggregation technique, with different sub-index coefficients. Winongo River had the best water quality and Gajah Wong River was the worst. According to the relationship of river water discharge and WQIs index, large discharge during rainy seasons does not always decrease the level of pollution, but it tends to increase the WQIs. More effective ways to improve the stream water quality during dry seasons should further be investigated.
FORAMINIFERA BENTONIK KAITANNYA DENGAN KUALITAS PERAIRAN DI WILAYAH BARAT DAYA PULAU MOROTAI, MALUKU UTARA Amir Sidiq; Suwarno Hadisusanto; Kresna Tri Dewi
JURNAL GEOLOGI KELAUTAN Vol 14, No 1 (2016)
Publisher : Pusat Penelitian dan Pengembangan Geologi Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1119.179 KB) | DOI: 10.32693/jgk.14.1.2016.336

Abstract

Pulau Morotai, Maluku Utara merupakan salah satu pulau yang terletak di kawasan segitiga terumbu karang  sebagai pusat kenakeragaman biota laut global. Kesehatan ekosistem terumbu karang dapat dipantau dengan menggunakan komposisi foraminifera bentonik. Maksud dan tujuan studi ini adalah untuk mengetahui struktur komunitas foraminifera bentoni terkait dengan kualitas perairan sebelah barat daya Pulau Morotai. Studi ini menggunakan enam sampel sedimen dasar laut dengan tiga kali perulangan yang diambil pada  kedalaman antara 16 dan 36 m. Hasilnya menunjukkan ada 28 spesies foraminifera bentonik, dicirikan oleh kehadiran Amphistegina dan Operculina dalam jumlah sangat melimpah. Amphistegina radiata merupakan spesies dengan densitas tertinggi di stasiun dekat pantai. Nilai indeks keanekaragaman foraminifera antara 1,49 dan 2,31 yang tergolong dalam kondisidengan tingkat keanekaragaman sedang. Indeks keseragaman umumnya lebih besar dari 0,6 yang menunjukkan lingkungan stabil. Nilai indeks FORAM (FI) berkisar dari 6,32 hingga 9,16 yang memperlihatkan  kondisi lingkungan yang kondusif bagi pertumbuhan terumbu karang. Kata kunci: struktur komunitas, foraminifera bentonik, terumbu karang, MorotaiMorotai Island, North Molucca is one of islands that is located in the Coral triangle region as the global centre of marine biodiversity.  The health of this coral ecosystem could be monitored by using benthonic foraminferal composition. The purpose of this study are re recognized community structure of benthic foraminifera related to water quality off southwest Morotai, Island. This study used six marine sediments samples with three times of replication that collected from 16 -36 m water depth. The result shows that there are 28 spesies of benthonic foraminifera characterized by occurences of Amphistegina and Operculina abundantly. Amphistegina radiata is a highest density species that is found in the near shore station. The diversity index is between 1,49 and 2,31 as moderate diversity;  evenness index generally is more than 0,6 that indicates stable environment. FORAM index (FI) is more than 4 (6,32 to 9,16) that shows of  condusif environmental condition for reef growth.Keywords: community structure, benthonic foraminifera, coral reef, Morotai
KETERKAITAN PERUBAHAN IKLIM PADA GLASIAL AKHIR - HOLOSEN TERHADAP TINGKAT KEANEKARAGAMAN FORAMINIFERA DI LAUT HALMAHERA Fitria Ratna Pratiwi; Suwarno Hadisusanto; Luli Gustiantini; Nazar Nurdin; Mira Yosi
JURNAL GEOLOGI KELAUTAN Vol 18, No 1 (2020)
Publisher : Pusat Penelitian dan Pengembangan Geologi Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1017.085 KB) | DOI: 10.32693/jgk.18.1.2020.635

Abstract

Laut Halmahera terletak pada Western Pacific Warm Pool (WPWP), yaitu pusat konveksi panas di Samudera Pasifik Barat tropis. Laut ini merupakan salah satu jalur masuk Arlindo yang menghubungkan massa air Samudera Pasifik dengan Samudera Hindia. Sehingga area ini penting untuk rekonstruksi paleoklimat. Peristiwa perubahan glasial akhir-interglasial (Holosen) merupakan peristiwa di masa lalu yang sangat mempengaruhi kondisi Laut Halmahera. Salah satu proksi yang dapat digunakan untuk mencatat perubahan iklim di masa lalu adalah sisa-sisa makhluk hidup, termasuk foraminifera. Perubahan yang terjadi pada foraminifera dapat diamati dari tingkat  keanekaragaman, kemelimpahan, dominansi, dan keseragaman. Penelitian dilakukan dengan menggunakan sampel sedimen bor MD10-3339, yang diambil di Laut Halmahera (00o26,67’LS dan 128o50,33’BT) pada kedalaman 1.919 m, dalam survei MONOCIR 2 tahun 2010. Sampel yang digunakan pada rentang 20 cm hingga 1.930 cm dengan interval 60 cm pada tiap sampel, yang dianggap mewakili waktu terjadinya glasial-interglasial. 30 sampel kemudian diamati dan dilakukan analisis secara kuantitatif. Teridentifikasi 52 spesies yang terdiri dari 32 spesies foraminifera bentonik dan 21 spesies foraminifera planktonik. Nilai indeks keanekaragaman, nilai indeks keseragaman, dan indeks dominansi menunjukkan nilai yang fluktuatif sejak glasial-interglasial, dengan nilai rata-rata 1,66; 0,35; dan 0,3. Walaupun tidak menunjukkan pola glasial-interglasial, namun pada sekitar umur 12.519 BP, nilai indeks keanekaragaman dan nilai keseragaman menunjukkan nilai yang lebih rendah dibandingkan dengan nilai yang lain yaitu 1,102 dan 0,26. Sebaliknya, indeks dominansi mencapai nilai tertinggi yaitu 0,55.  Selain itu, persentase P. obliqueloculata pada umur ini menjadi sangat dominan yaitu 73,05%. Hal tersebut kemungkinan berkaitan dengan peristiwa Younger Dryas.Kata Kunci : Foraminifera, Younger Dryas, Laut Halmahera.Halmahera Sea lies in the centre of Western Pacific Warm Pool (WPWP), the warmest area in Tropical Pacific Ocean that play a role as center of heat convection. It is also one of the Indonesian throughflow pathways connecting water mass from Pacific Ocean to The Indian Ocean, therefore this area is considered important for climatic reconstruction. Glacial-interglacial cycle is one of the major events in the past that strongly influence the Halmahera Sea. Potential proxies for paleoclimatic reconstruction are including living organisms remain, such as foraminifera. Respond of foraminifera can be observed from their diversity, abundance, dominance, and their evenness. This study was conducted by analizing sediment core MD10-3339, collected from the Halmahera Sea (00o26.67” S, 128o50.33” E) in 1,919 m water depth, during the cruise MONOCIR 2 in 2010. Samples were analized from 20 cm to 1,930 cm at 60 cm intervals. A total of 30 samples were observed and analyzed. 52 species of foraminifera are found, composed of 32 species of benthonic foraminifera and 21 species of planktonic foraminifera. The analyses of diversity index, evenness, and dominance indicate fluctuated values between glacial-interglacial, with averages values are 1.66, 0.35, and 0.3 respectively. Although the values do not indicate glacial-interglacial trend, however, in 12,519 BP diversity index and evenness index showed the lowest number compared to the other ages (1.102 and 0.26, respectively),in contrast the highest dominance index (0.55). Furthermore, at this time, the percentage of Pulleniatina obliquiloculataincrease (73.05%) and become dominant. This occurrence might be related to the Younger Dryas event.Keywords: Foraminifera, Younger Dryas, Halmahera Sea.
Co-Authors Abd. Karim , Wahyudin Adi, Hanindyo Agatha Sih Piranti agus maryono Agustinus Murdjoko Agustinus Murdjoko Aisyah Hadi Ramadani Alanindra Saputra Aldawood, Abdulrahman Saad Alifa Varmlandia ALIM ISNANSETYO Amir Sidiq Anindya Kusumawati Arda dinata Arini Wijayanti Astuti, Raden Roro Upiek Ngesti Wibawaning Bahana Aditya Adnan Bambang Agus Kironoto Budi Mulyaningsih Dewi Puspita Sari Dewi Puspita Sari Dewi Puspita Sari Djoko Marsono Djoko Marsono Dulbahri Eko Haryono Emilya Nurjani Endang Puji Astuti Enggar Lestari Ervina Indrayani Farah Dewi Permatasari Fitria Ratna Pratiwi H.N., Kamiso Hanna Kawulur, Hanna Hanna S.I. Kawulur Hanna S.I. Kawulur, Hanna S.I. Heny Mayasari Setyoningrum, Heny Mayasari Hidayat Soesilohadi Istriyati I Istriyati I Istriyati Istriyati Kamiso H. N. Kamiso H.N. KAMISO HANDOYO NITIMULYO Kamiso Handoyo Nitimulyo Kamiso Handoyo Nitimulyo Kamiso Handoyo Nitimulyo Kharisma Dinda Islami Kresna Tri Dewi Laila Widi Utami Langgeng Wahyu Santosa Luli Gustiantini Luli Gustiantini M Widyastuti M. Sofwan Anwari, M. Sofwan Mahmed Sagi Mammed Sagi Mammed Sagi Mammed Sagi Mira Yosi Mira Yosi Mochammad Venly Ardion Muh Aris Marfai Muh Aris Marfai Muh Aris Marfai Muhamat, M Muhammad Sulaiman Nazar Nurdin Nazar Nurdin Netty Dahlah Uar Nurul Khakhim Nurul Khakhim Nurul Khakhim Pertiwi, Serly Andini Peter Gell PUGUH KARYANTO Puguh Sujarta Purnomo Purnomo Purnomo Purnomo Purnomo R.C. Hidayat Soesilohadi Raden Roro Upiek Ngesti Wibawaning Astuti Raden Wisnu Nurcahyo Rarastoeti Pratiwi Rina Puji Astuti Ronggo Sadono Rosita Tabaika, Rosita Rustadi Rustadi S. Djalal Tandjung Sagi , Mammed Satyawan Pudyatmoko Setefani Yulia Tiara Putri Sevina Rahmi Sigit Heru Murti Sitti Rahmah Umniyati Sri Puji Saraswati Sri Puji Saraswati Sudarmadji Sudarmadji Sudaryatno Sudaryatno Suhestri Suryaningsih Suhestri Suryaningsih Suhestri Suryaningsih Suhestri Suryaningsih Sukirno Sukirno Sumarna, Ardi Sunarto SUNARTO Sunyoto Sunyoto Suryaningsih , Suhestri Susintowati Susintowati, Susintowati Sutikno Sutikno Tri Retnaningsih Soeprobowati Tukidal Yunianto Wahyu Sartika, Heni Y. Andi Trisyono Yul Hendro Widodo Yusal, Muh Sri Zunnikah, Zunnikah