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CATCH AND RELATIVE ABUNDANCE OF SOME SHARKS LANDING IN TANJUNG LUAR, LOMBOK Agus Arifin Sentosa; Dharmadi Dharmadi
Widyariset Vol 3, No 2 (2017): Widyariset
Publisher : Pusbindiklat - LIPI

Tanjung Luar is the center of shark fisheries in Indonesia because it has more shark catches than any other fish landing places in Indonesia. The aims of this study were to present the catch characteristics and the relative abundance of some sharks landing in Tanjung Luar, Lombok. Data were obtained through the interview with enumerators and from their daily monitoring record on the shark landing at Tanjung Luar, East Lombok during eleven months period from January to November 2015. Data statistics were calculated descriptively and presented as a percentage of relative abundance. The result shows the shark caught in 2015 has fluctuated monthly with the peak of catch occurred on September 2015. Total shark caught were about 237.5 tonnes and average landing per day was 1.4 tonnes. Species composition of overall catch comprised of 28 species which belong to 11 families. Among those species, Silky shark/Carcharhinus falciformis (42.06%), Blue shark/Prionace glauca (10.45%) and Blacktip shark/Carcharhinus limbatus (10.31%) were predominant as indicated having relative abundance more than 10%.

NISHAH KELAMIN, HUBUNGAN PANJANG-BERAT DAN UKURAN REPRODUKSI HIU Hexanchus spp. DI PERAIRAN SELATAN NUSA TENGGARA Agus Arifin Sentosa
BERITA BIOLOGI Vol 18, No 2 (2019)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v18i2.3550

Hexanchus spp. are shark species that are often caught in the Indian Ocean southern Nusa Tenggara and its status is Near Threatened, but the information is still relatively limited. This study aimed to sex ratio, length-weight relationship and reproductive size of sixgill shark, Hexanchus spp. caught from southern Nusa Tenggara waters. This study had been carried out during 2016 at the Fishing Port of Tanjung Luar, East Lombok, West Nusa Tenggara. Shark data collection was done by measuring the length, weight, maturity and fishing data. Data were analyzed by formula of sex ratio, length-weight relationship, length at first maturity (Lm) and length at first catch (Lc). The results showed that Hexanchus spp. caught in the southern Nusa Tenggara waters consisted of H. nakamurai (81.82%) and H. griseus (18.18%). The sex ratio of both sharks was dominated by the female. The average of the total length of H. griseus (218.3 ± 96.08 cm). It was longer than H. nakamurai (127.6 ± 30.35 cm). The length-weight relationship of H. griseus was formulated as W = 0.0195 LT 2,6344 (R² = 0,9265) and H. nakamurai with the formula W = 0.002 LT 3,1098 (R² = 0.902). Both species have the size of Lm was bigger than the size of Lc which indicated to their population vulnerability.

HABITAT PEMIJAHANIKAN WADER PARI (Rasbora lateristriata) DI SUNGAI NGRANCAH, KABUPATEN KULON PROGO [Spawning habitat of Rasbora lateristriata in Ngrancah River, Kulon Progo Regency] Agus Arifin Sentosa; Djumanto Djumanto
Jurnal Iktiologi Indonesia Vol 10 No 1 (2010): Juni 2010
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v10i1.178

Yellow rasbora (Rasbora lateristriata) is a riverine fish that has unique spawning behaviour. Observation on its spawning aspects become interesting to carry out. Purpose of this research was to describe spawning site of the fish in Ngran-cah River, Kulon Progo Regency. The study was conducted by survey methods and direct observation in the field. The result showed that yellow rasbora has spawn in shallow riverside with sand and gravel riverbed. Spawning occurred at challenging from wet to dry monsoon with clean and freshly water, enough of oxygen, low water level and low temperature. The characters had been used by fisherman for increasing fish catch ability by make an artificial spawning site modification.

CATCH AND RELATIVE ABUNDANCE OF SOME SHARKS LANDING IN TANJUNG LUAR, LOMBOK Agus Arifin Sentosa; Dharmadi Dharmadi
Widyariset Vol 3, No 2 (2017): Widyariset
Publisher : Pusbindiklat - LIPI

Tanjung Luar is the center of shark fisheries in Indonesia because it has more shark catches than any other fish landing places in Indonesia. The aims of this study were to present the catch characteristics and the relative abundance of some sharks landing in Tanjung Luar, Lombok. Data were obtained through the interview with enumerators and from their daily monitoring record on the shark landing at Tanjung Luar, East Lombok during eleven months period from January to November 2015. Data statistics were calculated descriptively and presented as a percentage of relative abundance. The result shows the shark caught in 2015 has fluctuated monthly with the peak of catch occurred on September 2015. Total shark caught were about 237.5 tonnes and average landing per day was 1.4 tonnes. Species composition of overall catch comprised of 28 species which belong to 11 families. Among those species, Silky shark/Carcharhinus falciformis (42.06%), Blue shark/Prionace glauca (10.45%) and Blacktip shark/Carcharhinus limbatus (10.31%) were predominant as indicated having relative abundance more than 10%.

PARAMETER PERTUMBUHAN HIU MACAN (Galeocerdo cuvier Peron & Lesuer, 1822) DI PERAIRAN SELATAN NUSA TENGGARA BARAT Umi Chodrijah; Agus Arifin Sentosa; Prihatiningsih Prihatiningsih
Jurnal Penelitian Perikanan Indonesia Vol 24, No 4 (2018): (Desember) 2018
Publisher : Pusat Riset Perikanan, BRSDM KP.

Hiu macan (Galeocerdo cuvier Peron & Lesuer, 1822) merupakan predator puncak yang ditandai dengan sebaran yang luas dan ukurannya lebih besar. Spesies hiu ini masuk dalam famili Carcharhinidae yang banyak tertangkap di perairan Samudera Hindia. Status konservasi jenis ini masuk dalam Daftar merah IUCN dan hampir terancam (NT) serta informasi tentang biologi khususnya parameter pertumbuhan spesies ini masih sangat terbatas.Tujuan penelitian adalah untuk mendapatkan informasi parameter pertumbuhan hiu macan di perairan Samudera Hindia bagian Selatan Nusa Tenggara Barat. Penelitian dilakukan di tempat pendaratan ikan Tanjung Luar, Lombok Timur pada bulan Januari sampai dengan Desember 2016. Pengamatan meliputi panjang total tubuh dan jenis kelamin yang dilakukan dengan pengukuran dan pengamatan langsung secara visual di lapangan. Hasil penelitian terhadap 808 ekor ikan contoh menunjukkan bahwa kisaran panjang total untuk hiu macan (Galeocerdo cuvier) terdistribusi pada ukuran antara 116 - 400 cmTL dengan panjang rata-rata 242,8 cm TL serta modus pada ukuran 240 cmTL. Perbandingan kelamin ikan hiu macan jantan dan betina dalam keadaan tidak seimbang, dengan jumlah jantan lebih besar. Estimasi panjang asimtotik (L∞) sebesar 420 cmTL dengan laju pertumbuhan (K) 0,260/tahun, laju kematian total (Z) 1,10/tahun, laju kematian alamiah (M) 0,35/tahun serta laju kematian akibat penangkapan (F) 0,75/tahun. Estimasi laju eksploitasi sudah mengarah kepada penangkapan yang berlebih (E = 0,68) oleh karena itu perlu dilakukan tindakan pengelolaan agar pemanfaatannya tetap lestari.Tiger sharks (Galeocerdo cuvier Peron & Lesuer, 1822) were widely held in the depths of the Indian Ocean. Its conservation status was on the IUCN Red List and was near threatened (NT). The purpose of this study was to obtain the parameters of growth in the South off West Nusa Tenggara waters. The study was conducted at Tanjung Luar landing site, East Lombok in January until December 2016. The observation included total length and sex with visual measurement and observation in the field. The results of the study showed the number of 808 individues that the total length range for tiger shark (Galeocerdo cuvier) caught in Indian Ocean waters landed on Tanjung Luar was distributed on a size between 116-400 cmTL with an average length of 242.8 cmTL and a mode at 240 cmTL. The sex ratio of male and female tiger sharks was in an unbalanced state, with larger females. Estimation of asymptotic length (L∞) of 420 cmTL with growth rate (K) 0.260 / year, total mortality rate (Z) 1.10 / year, natural mortality rate (M) 0.35 / year and mortality rate due to arrest (F) 0.75 / year. Estimation of the rate of exploitation has led to overfishing (E = 0.68) therefore it was necessary to take regulatory and management measures to ensure sustainable utilization.

SEBARAN UKURAN DAN BEBERAPA PARAMETER POPULASI HIU KARET (Prionace glauca Linnaeus, 1758) YANG TERTANGKAP DI PERAIRAN SELATAN NUSA TENGGARA Agus Arifin Sentosa; Umi Chodrijah; Irwan Jatmiko
Jurnal Penelitian Perikanan Indonesia Vol 23, No 2 (2017): (Juni 2017)
Publisher : Pusat Riset Perikanan, BRSDM KP.

Hiu karet (Prionace glauca) adalah hiu pelagis yang menjadi target tangkapan nelayan artisanal Tanjung Luar dan umumnya tertangkap di Samudera Hindia Selatan Nusa Tenggara. Penelitian ini bertujuan untuk mengetahui sebaran ukuran dan beberapa parameter populasi hiu karet (Prionace glauca) yang tertangkap di perairan selatan Nusa Tenggara. Analisis dilakukan terhadap 1.414 ekor hiu karet yang tertangkap rawai hanyut di selatan Nusa Tenggara dan didaratkan di Tanjung Luar, Lombok Timur selama periode 2014 – 2016. Analisis data dilakukan secara deskriptif dan beberapa parameter populasi diduga menurut rumus empiris Froese & Binohlan (2000). Hasil penelitian menunjukkan sebaran ukuran panjang total hiu karet berkisar antara 95 – 383 cm (jantan) dan 113 – 333 cm (betina) dengan rerata ukuran yang tertangkap tidak berbeda nyata. Nisbah kelamin didominasi oleh hiu karet jantan dan telah matang kelamin. Dugaan terhadap beberapa parameter adalah: nilai L∞ antara 333,02 - 385,59 cm dengan Lm jantan antara 187,21 – 215 cm dan betina 139,82 – 159,34 cm. Sebanyak 39,96 – 44,71% hiu karet tertangkap pada panjang optimumnya sehingga ada kecenderungan tangkap lebih.The blue shark (Prionace glauca) is targeted pelagic shark of artisanal fishermen of Tanjung Luar and commonly caught from the southern part of Nusa Tenggara water. The research aims to determine the size distribution and some population parameters of blue shark (Prionace glauca) caught in the Southern part of Nusa Tenggara water. The analysis was performed on 1,414 blue sharks caught by drifting longlines in the Southern part of Nusa Tenggara water and landed at Tanjung Luar, East Lombok during the period 2014 - 2016. The data were analyzed descriptively and some parameters of the population were calculated by the empirical formula from Froese & Binohlan (2000). The results showed that the length total size distribution of blue sharks ranged between 95-383 cm (male) and 113-333 cm (females). The sex ratio was dominated by male shark. The estimation of population parameters of shark were L∞ ranged between 333.02 - 385.59 cm, Lm estimated ranged between 187.21 to 215 cm (male) and from 139.82 to 159.34 cm (female). About 39.96 to 44.71% of total sample was caught at its optimum length, so it tends to be over exploitation.

INTERAKSI TROFIK KOMUNITAS IKAN DI DANAU MATANO, SULAWESI SELATAN PASCA BERKEMBANGNYA IKAN ASING INVASIF Dimas Angga Hedianto; Agus Arifin Sentosa
Jurnal Penelitian Perikanan Indonesia Vol 25, No 2 (2019): (Juni) 2019
Publisher : Pusat Riset Perikanan, BRSDM KP.

Interaksi trofik pasca masuknya ikan introduksi ataupun ikan asing invasif merupakan dasar untuk mengkaji tekanan ekologis terhadap ikan asli. Penelitian ini bertujuan untuk menganalisis interaksi trofik komunitas ikan pasca berkembangnya jenis-jenis ikan asing invasif di Danau Matano, Sulawesi Selatan. Ikan contoh diperoleh dari hasil tangkapan jaring insang percobaan, jala lempar, dan seser pada Mei, Oktober, dan November 2015 serta Februari, Juli, dan September 2016. Analisis ekologi trofik yang dilakukan meliputi indeks bagian terbesar, tingkat trofik, luas relung dan tumpang tindih relung makanan, serta pola strategi makan. Hasil penelitian menunjukkan komunitas ikan yang tertangkap di Danau Matano terdiri atas 9 famili, 11 genera, dan 17 spesies. Ikan louhan mendominasi komunitas ikan di Danau Matano sebesar 53,62%. Makanan alami yang banyak dimanfaatkan oleh sejumlah ikan dalam komunitas adalah insekta (Diptera), Gastropoda (Tylomelania sp.), dan larva insekta (Chironomidae). Kelompok trofik komunitas ikan di Danau Matano terdiri atas detritivora, herbivora, insektivora, zoobentivora, dan piscivora. Masuknya ikan introduksi memunculkan kelompok trofik baru (detritivora dan herbivora). Ikan introduksi cenderung memiliki luas relung makanan yang lebih bervariasi. Kompetisi terhadap makanan alami kategori moderat banyak terjadi antara ikan asli dengan louhan. Strategi pola makan ikan asli di Danau Matano cenderung bersifat spesialis, sedangkan ikan introduksi memiliki strategi pola makan yang lebih bervariasi dan oportunistik. Ikan louhan sebagai ikan introduksi dominan yang bersifat invasif mampu memanfaatkan seluruh sumber daya makanan alami yang tersedia dan menempati tingkat trofik tertinggi di Danau Matano. Tekanan ekologi terhadap ikan asli oleh ikan asing invasif di Danau Matano terjadi karena adanya kompetisi terhadap makanan alami.Trophic interactions post-develpment of non-native fish or invasive alien fish species are the basis knowledge for assessing and preventing the ecological pressure on native fish. This research aims to analyze the trophic interactions of fish community post-development of invasive alien fish species in Lake Matano, South Sulawesi. Fish samples were obtained from the catch of experimental gill nets, cast nets, and push nets in May, October, and November 2015 along with February, July, and September 2016. Trophic ecological analysis carried out included index of preponderance, trophic level, niche breadth and niche overlap of natural food, and feeding strategy. The fish community caught in Lake Matano consists of 9 families, 11 genera, and 17 species. Flowerhorn cichlid dominates the fish community in Lake Matano by 53.62%. Natural foods that are widely used by a number of fish in the community are Insecta (Diptera), Gastropods (Tylomelania sp.), and larvae of Insecta (Chironomidae). The guild trophic of fish community in Lake Matano consists of detritivores, herbivores, insectivores, zoobentivores, and piscivores. The introduction of non-native species bring up to new guilds (detritivores and herbivores). Non-native fishes tends to have a variety niche breadth. Moderate competition for natural food resources between native fish and flowerhorn cichlid is quite high. Feeding strategy of native species in Lake Matano tend to be specialist, while non-natives species have more variety and opportunistic. Flowerhorn cichlid as dominant invasive alien fish species is able to utilize all natural food resources and occupies the highest trophic level in Lake Matano. Ecological pressure on native fish by invasive alien fish species in Lake Matano occurs due to competition in obtaining natural food resources.

ASPEK REPRODUKSI IKAN LOUHAN HIBRID SEBAGAI IKAN ASING INVASIF DI DANAU MATANO, SULAWESI SELATAN Dimas Angga Hedianto; Agus Arifin Sentosa; Hendra Satria
BAWAL Widya Riset Perikanan Tangkap Vol 10, No 2 (2018): (Agustus) 2018
Publisher : Pusat Riset Perikanan, BRSDM KP.

Penelitian mengenai aspek reproduksi ikan asing invasif di Danau Matano dibutuhkan dalam upaya pengendalian dan pemberantasan populasinya. Penelitian ini bertujuan untuk mengetahui aspek reproduksi ikan louhan yang diharapkan dapat digunakan sebagai acuan untuk pengendalian ikan asing invasif di Danau Matano, Sulawesi Selatan. Sampel ikan diperoleh dengan menggunakan jaring insang percobaan dengan berbagai ukuran mata jaring pada Mei dan Oktober 2015 serta pada Februari, Juli, dan September 2016 di 14 stasiun penelitian. Penentuan jenis kelamin dan tingkat kematangan gonad (TKG) berdasarkan ciri reproduksi primernya. Fekunditas total dihitung menggunakan metode gravimetrik. Ikan louhan yang tertangkap sebanyak 1.118 ekor terdiri atas 552 ekor ikan jantan, 512 ekor ikan betina, dan 54 ekor tidak dapat ditentukan jenis kelaminnya. Nisbah kelamin secara temporal berada pada kondisi seimbang dengan perbandingan total sebesar 1,1:1. Ikan louhan jantan dan betina mencapai rata-rata ukuran pertama kali matang gonad (Lm50) masing-masing pada panjang total 12,6 cm dan 10,2 cm. Ikan jantan berukuran lebih besar daripada betina pada TKG yang sama. Diameter telur berkisar antara 0,25-2,35 mm (rerata 1,31±0,37 mm) dengan fekunditas berkisar antara 104-3.375 butir. Ikan louhan termasuk tipe pemijah bertahap dan mampu memijah sepanjang tahun di berbagai tipe karakteristik habitat. Puncak pemijahan terjadi pada musim penghujan dan kemarau. Substrat dasar berupa pasir berbatu di kedalaman 15 meter merupakan daerah utama pemijahan ikan louhan di Danau Matano. Rekomendasi pengendalian ikan louhan di Danau Matano melalui penangkapan perlu dilakukan sebelum mencapai ukuran Lm50, di seluruh daerah litoral danau (<10 meter) pada musim kemarau (April-Juni) dan penghujan (September-November).The information on fish reproduction aspects of invasive alien species in Matano Lake is required to setup measure for controlling and eradicating their population. This research aims to determine the reproductive aspects of flowerhorn cichlid that could used as a reference for controlling the invasive alien species in the Matano Lake, South Sulawesi. Sample was collected by using experimental gill-net with various mesh sizes in 14 research stations in several periods (May 2015, October 2015, February 2016, July 2016, and September 2016). Sex determination and gonadal stages identified based on the characteristics of primary reproduction. Total fecundity is calculated using gravimetric method. The total individual flowerhorn cichlid was 1,118 fishes that consists of 552 males, 512 females, and 54 unidentified. The temporary sex ratio indicated balance conditions by ratio 1.1:1. Length at first maturity (Lm50) of male and female of flowerhorn cichlid reached at 12.6 cmTL and 10.2 cmTL, respectively. Males are larger than females at the same gonad maturity stage. The eggs diameter ranged from 0.25 to 2.35 mm (average of 1.31 ± 0.37 mm) with fecundity ranged from 104-3,375 egg which indicated that flowerhorn cichlid was a partial spawner. Flowerhorn cichlid spawned throughout the year (multi spawning) in various types of habitat characteristics with spawning peaks in the rainy and dry seasons. Sandy rock in the depth of 15 meters is the main of spawning area of flowerhorn cichlid in the Matano Lake. The recommendation for controlling flowerhorn cichlid in Matano Lake by fishing, need to be done before its size reaching the Lm50, across the littoral area of the lake (<10 meters) in the dry (April-June) and rainy seasons (September-November).

KEBIASAAN MAKANAN DAN INTERAKSI TROFIK KOMUNITAS UDANG PENAEID DI PERAIRAN ACEH TIMUR Agus Arifin Sentosa; Dimas Angga Hedianto; Astri Suryandari
BAWAL Widya Riset Perikanan Tangkap Vol 9, No 3 (2017): (Desember) 2017
Publisher : Pusat Riset Perikanan, BRSDM KP.

Udang penaeid merupakan komoditas perikanan udang yang umum tertangkap di perairan Aceh Timur. Pengelolaan perikanan udang dengan pendekatan ekosistem membutuhkan informasi terkait kebiasaan makanan udang dan interaksinya. Penelitian ini bertujuan untuk mengetahui kebiasaan makanan dan interaksi trofik komunitas udang penaeid di perairan Aceh Timur. Penelitian dilaksanakan pada April dan September tahun 2014-2015 serta April 2016 di perairan Aceh Timur. Contoh udang diperoleh dari tangkapan mini beam trawl dan hasil tangkapan nelayan. Analisis dilakukan menggunakan indeks bagian terbesar, tingkat trofik, luas relung dan interaksinya. Hasil penelitian menunjukkan komunitas udang penaeid di perairan pantai Aceh Timur terdapat sekitar 20 jenis udang pada stadia yuwana hingga dewasa. Kebiasaan makanan pada 8 jenis udang penaeid dominan berbeda tergantung spesiesnya dengan makanan utama berupa krustasea, detritus dan moluska. Interaksi trofik menunjukkan terdapat peluang kompetisi yang tinggi antara Penaeus monodon dengan Penaeus sp., Fenneropenaeus indicus, F. merguiensis dan Parapenaeopsis stylifera coromandelica serta Metapenaeus brevicornis dengan M. ensis karena memanfaatkan sumberdaya makanan yang sama.The penaeid shrimps communities have been caught in the waters of East Aceh and some become the main fisheries commodities. Management of shrimp fisheries with ecosystem approach required information related to its food habits and their interactions. The purpose of this study were to examine food habits and trophic interactions of penaeid shrimp communities in the East Aceh waters. The study was conducted in April and September 2014-2015 and April 2016 in the waters of East Aceh. Shrimp samples were obtained from mini beam trawl and fisherman catches. The analysis was performed using index of preponderance, trophic level, niche breadth and its interaction. The results showed that the community of Penaeid shrimp in East Aceh coastal waters consisted of about 20 species of shrimp in juvenile to to adult phase. Food habits of 8 dominant penaeid shrimp was differ depending on the species with the main foods of crustaceans, detritus and molluscs. Trophic interactions suggest that there is a high probability of competition between Penaeus monodon and Penaeus sp., Fenneropenaeus indicus, F. merguiensis and Parapenaeopsis stylifera coromandelica and Metapenaeus brevicornis with M. ensis for utilizing the same food resources.

Prediksi Konsentrasi Klorofil-a Menggunakan Data Citra Satelit Sentinel-2A di Waduk Jatiluhur Kabupaten Purwakarta: Prediction of Chlorophyll-a Using Satellite Imagery Data Sentinel-2A in Jatiluhur Reservoir Purwakarta Regency Arip Rahman; Lismining Pujiyani Astuti; Andri Warsa; Agus Arifin Sentosa
Jurnal Teknologi Lingkungan Vol. 23 No. 2 (2022)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Lakes, reservoirs, and rivers are among the most changing ecosystems on the earth’s surface. Chlorophyll-a as the main pigment in phytoplankton is often used to describe the water quality of lake and reservoirs and as an important element that indicates the tropical status of a waters. Spatial and temporal changes in algae blooms in a lake make it difficult to use in situ monitoring. The aim of the study is to predict the concentration of chlorophyll-a in Jatiluhur Reservoirs. The data used in this study were chlorophyll-a data from in situ measurements and satellite data Sentinel-2A. The method to obtain the value of the concentration of chlorophyll-a are an empirical and semi-analytical method. The empirical method is carried out by correlating in situ data with ratio of band 5 (red edge) and band 4 (red) (B5/B4). While the semi-analytical method is carried out by analyzing the Case 2 Regional Coast Colour (C2RCC) algorithm that integration in Sentinel Application Platform (SNAP) software. Correlation between in situ data and prediction of chlorophyll-a data has a strong relationship with the coefficient of determination R2=0.67 (in situ data with ratio prediction data) and R2=0.56 (in situ data with C2RCC prediction data). Based on this, remote sensing data on Sentinel-2A imagery with the application of several algorithms, can be used to support water quality monitoring activities in lakes and reservoirs, especially chlorophyll-a. Keywords: Chlorophyll-a, Sentinel-2A satellite imagery, Jatiluhur reservoirs, Empirical, Semi-analytical ABSTRAK Danau, waduk, dan sungai merupakan salah satu ekosistem yang paling banyak berubah di permukaan bumi. Klorofil-a sebagai pigmen utama fitoplankton sering digunakan untuk menggambarkan kualitas perairan danau dan waduk. Selain itu, klorofil-a merupakan unsur penting yang menandakan status tropik suatu perairan. Perubahan secara spasial dan temporal blooming alga pada suatu danau/waduk membuat sulit untuk melakukan monitoring secara in situ. Penelitian dilakukan untuk memprediksi nilai konsentrasi klorofil-a di Waduk Jatiluhur menggunakan data penginderaan jauh. Data yang digunakan dalam penelitian ini adalah data klorofil-a hasil pengukuran in situ dan data citra satelit Sentinel-2A. Metode yang digunakan untuk memprediksi nilai konsentrasi klorofil-a adalah metode empiris dan semi analisis. Metode empiris dilakukan dengan mengkorelasikan antara nilai klorofil-a in situ dengan nilai rasio band 5 (red edge) dan band 4 (red) (B5/B4). Sedangkan metode semi analisis dilakukan dengan analisis algoritma Case 2 Regional Coast Colour (C2RCC) yang terintegrasi pada perangkat lunak Sentinel Application Platform (SNAP). Hasil korelasi antara data in situ dan data prediksi klorofil-a diperoleh hubungan yang kuat dengan koefisien determinasi R2=0,67 (data in situ dengan data prediksi rasio) dan R2=0,56 (data in situ dengan data prediksi C2RCC). Berdasarkan hal tersebut, data penginderaan jauh citra Sentinel-2A dengan aplikasi beberapa algoritma, dapat digunakan untuk mendukung kegiatan monitoring kualitas perairan di danau dan waduk terutama klorofil-a. Kata kunci: Klorofil-a, Citra Sentinel-2A, Waduk Jatiluhur, Empiris, Semi analisis

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