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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Wilayah dan Lingkungan Omni-Akuatika Journal of Aquaculture and Fish Health Kumawula: Jurnal Pengabdian Kepada Masyarakat Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management Jurnal Pengabdian Perikanan Indonesia Indonesian Journal of Mollusk Jurnal Bluefin Fisheries Jurnal Aquatik Jurnal Aquaculture Indonesia
Lumban Nauli Lumban Toruan
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Engineering Environmental Science Immunology & microbiology Library & Information Science Mechanical Engineering Social Sciences Veterinary

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THE COMPOSITION AND DISTRIBUTION OF BENTHIC FORAMINIFERA AT CORAL REEF ECOSYSTEM IN THOUSANDS ISLAND Lumban Nauli Lumban Toruan; Dedi Soedharma; Kresna Tri Dewi
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 5 No. 1 (2013): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (795.236 KB) | DOI: 10.29244/jitkt.v5i1.7741

Abstract

Composition and distribution of foraminifers are affected by human activities and have close association with coral reef ecosystem. The aims of this research were to investigate the benthic foraminifers’ composition and distribution in sediment of coral reef ecosystem. Eleven stations of Karang Bongkok, Pramuka, and Onrust Island were observed in this study. The sediments were taken from surface substrate up to 2 cm under the substrate. Samples were washed on sieve with mesh size 0,063 mm, and then dried in oven with 50°C of temperature  for two hours. After separating from the sediment, the foraminifers were laid on foraminiferal slide and indentified using binocular microscope. The highest composition of symbiont-bearing foraminiferal assemblages which associated with reef ecosystem was in East Pramuka (78.17%) and the lowest was in South Onrust (21,83%). The opportunistic type had the highest composition in South Onrust (38.67%) and the lowest was in South Karang Bongkok. In west Pramuka had the highest composition of heterotrophic type (57.17%) and the lowest was in North Onrust (11.33%). Onrust Island was dominated by opportunistic type, indicating high nutrient. The highest amount of foraminifers’ taxa was found in Karang Bongkok with good coral reef coverage, while the lowest in Onrust facing with Jakarta Bay. Keywords: composition, distribution, benthic foraminifers, coral reef.
Sebaran Sampah Pantai di Pulau Timor, Nusa Tenggara Timur: Kajian pada Pantai Rekreasi Lumban Nauli Lumban Toruan; Ismawan Tallo; Suprabadevi Ayumayasari Saraswati
Jurnal Wilayah dan Lingkungan Vol 9, No 1 (2021): April 2021
Publisher : Department of Urban and Regional Planning, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jwl.9.1.92-108

Abstract

Beach debris is an increasingly important issue to study considering its negative impact on the terrestrial and marine environment. This research aims to examine the distribution of beach debris in Timor Island as a basis for managing and overcoming waste pollution. The research was conducted in August 2020 on six government-managed tourism beaches consisting of one city (Kupang) and five regencies (Malaka, Timor Tengah Selatan, Kupang, Timor Tengah Utara, and Belu). At each location, a transect of 100 meters was made parallel to the shoreline with a transect width of 10 m perpendicular to the shoreline measured from the back of the beach. All trash in the transect was taken, then cleaned from the sand, then put in plastic bags that have been labeled. The wet litter was sun-dried before being counted. All waste was then sorted, then counted in the amount of item, weight, and length. The results showed that the entire beach had been exposed to unmanaged waste. Plastic waste dominates the entire site with a composition of numbers of items between 63 - 95% (average 80 ± 12%) and length between 60 - 93% (average 75 ± 13%). The composition of the weight of plastic waste is between 20 - 72% (average 45 ± 21%), where the weight of plastic waste does not dominate at Motadikin Beach. The dynamics of ocean currents in the eastern monsoon are thought to have played a role in causing lower debris quantification at the Motadikin Beach (Malaka Regency) and Oetune Beach (Timor Tengah Selatan Regency) than to the other four beaches located in the north of Timor Island. The source of beach debris comes from recreational activities, fishing and anchoring activities, and anthropogenic waste carried away from the sea.
Rob Potential in the Coastal City of Kupang, East Nusa Tenggara (NTT) Suprabadevi Ayumayasari Saraswati; Lumban Nauli Lumban Toruan; Yulianto Suteja; Dadang Karmen; Putu Eddy Purna Wijaya
Journal of Aquaculture and Fish Health Vol. 10 No. 3 (2021): JAFH Vol. 10 No. 3 September 2021
Publisher : Department of Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jafh.v10i3.23463

Abstract

Coastal areas are dynamic and vulnerable to environmental changes, both due to natural processes and human activities, the coastal waters in Kupang City are strategic in supporting the development of the economic sector. Coastal areas have unique characteristics, both in terms of bio-geophysics and social, economic and cultural aspects. Some have a high level of vulnerability to global warming. The high value of vulnerability is inseparable from the geomorphological conditions of Kupang City in the form of sandy beaches and coastal erosion. This condition caused Kupang City to become one of the areas affected by tidal flooding. This research is a preliminary study which aims to determine the potential for rob in the coastal city of East Nusa Tenggara that occurred in February 2014. The impact of the tidal floods submerged residents' houses above the knees of adults as high as 70 cm.. The results of this study were to determine the potential for tidal reoccurrence in the city of Kupang, NTT based on tidal forecasting data. Based on the results of the analysis using the Admiralty method, it was found that the Formzhal (F) value for the coast of Kupang City was 25.82, the position of the lowest water level at Oesapa 2 Beach was 206.9 cm, while the sea level elevation position reached the highest peak on Kelapa Lima 2 Beach, namely 478, 5 cm. The value of the harmonic analysis results from the coastal area of Kupang City has HHWL (Highest High Water Level) which is 340.09 cm, the MSL (Mean Sea Level) value is 212.07 cm, and LLWL (Lowest Low Water Level) is 73.36 cm based on these results. The Kupang coast has the potential for tidal flooding.
Analisa kelimpahan kerang darah (Anadara granosa) dan pemanfaatannya oleh masyarakat di Desa Oebelo, Kabupaten Kupang Margaretha F Tje; Yahyah Yahyah; Lumban N.L Toruan
Jurnal Akuatik Vol 2 No 2 (2019): Jurnal Aquatik
Publisher : Nusa Cendana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (535.938 KB)

Abstract

Penelitian ini bertujuan untuk menganalisa kelimpahan kerang darah (Anadara granosa) dan pemanfaatannya oleh masyarakat di Desa Oebelo, Kabupaten Kupang. Penelitian ini telah dilaksanakan di pesisir Desa Oebelo, Kabupaten Kupang selama dua bulan. Penelitian ini menggunakan rumus analisa kelimpahan dimana perbandingan antara jumlah individu suatu jenis dengan luas kuadran pengamatan. Hasil penelitian ini memperlihatkan bahwa kondisi kelimpahan kerang darah (Anadara granosa) di Desa Oebelo mulai menurun, hal ini disebabkan karna pengambilan secara terus - menerus yang dilakukan oleh masyarakat di Desa Oebelo. Selain itu kerang darah juga dimanfaatkan sebagai bahan makanan, dijadikan sebagai obat untuk penyakit hepatitis, serta diperdagangkan secara nasional. Kata kunci : Kelimpahan, kerang darah. Desa Oebelo, Kabupaten Kupang.
Dinamika Populasi Ikan cakalang (Katsuwonus pelamis) di Perairan Teluk Kupang, Nusa Tenggara Timur Pit’ay, Novia Inggrid; Toruan, Lumban Nauli Lumban; Saraswati, Suprabadevi Ayumayasari
JURNAL BLUEFIN FISHERIES Vol 6, No 1 (2024)
Publisher : Politeknik Kelautan dan Perikanan Bitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jbf.v6i1.178

Abstract

Ikan cakalang (Katsuwonus pelamis) merupakan sumberdaya perikanan pelagis yang penting dan merupakan salah satu komoditas ekspor yang didaratkan di Pangkalan Pendaratan Ikan (PPI) Oeba Kupang. Penelitian ini dilakukan untuk mengkaji dinamika populasi ikan cakalang, sehingga dapat dilakukan pengelolaan perikanan yang berkelanjutan.  Pengambilan data primer dilakukan pada Bulan September 2022.  Sampel dipilih secara sebanyak 60 ekor. Analisis data dilakukan dengan menggunakan Microsoft Excel dan FiSAT-II. Parameter pertumbuhan ikan cakalang memiliki nilai L∞ = 50,67 cm, K = 0,51 per tahun dan t0 = -0,25 tahun. Nilai mortalitas total (Z) sebesar 1,13 per tahun, mortalitas alami (M) sebesar 0,99 per tahun dan mortalitas penangkapan (F) sebesar 0,14 per tahun. Laju eksploitasi adalah 0,12 per tahun yang menunjukan bahwa ikan cakalang belum dieksploitasi dengan maksimal.
Types and Abundance of Microplastics in Red Snapper (Lutjanus malabaricus) in Kupang Bay Waters, East Nusa Tenggara Timur: Jenis dan Kelimpahan Mikroplastik pada Ikan Kakap Merah (Lutjanus malabaricus) di Perairan Teluk Kupang, Nusa Tenggara Timur Ngai, Maria Magdalena Mau; Toruan, Lumban Nauli Lumban; Tallo, Ismawan
Habitus Aquatica Vol 5 No 1 (2024): Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/HAJ.5.1.11

Abstract

Mikroplastik adalah partikel plastik yang memiliki ukuran <5 mm. Ukuran yang kecil menyebabkannya bisa ditransportasikan ke semua perairan dan biota termasuk ikan. Sumber limbah mikroplastik di perairan antara lain dari industri, pertanian, dan aktivitas antropogenik di mana keseluruhannya dapat menjadi sumber pencemaran mikroplastik di laut. Ikan kakap merah (Lutjanus malabaricus) merupakan salah satu jenis ikan demersal yang hidup secara berkelompok di dasar karang atau terumbu karang. Ikan kakap merah adalah salah satu kategori produk perikanan yang memiliki nilai ekonomis penting dan banyak diminati masyarakat. Penelitian ini bertujuan untuk mengidentifikasi jenis, warna, kelimpahan, dan ukuran mikroplastik pada ikan kakap merah. Pengambilan sampel dilaksanakan pada Bulan September-Oktober 2022 dengan total sampel yang dikaji sebanyak 50 ekor ikan. Identifikasi mikroplastik berdasarkan bentuk, ukuran, dan warna pada partikel mikroplastik. Hasil penelitian menemukan sebanyak 1.593 partikel mikroplastik pada sampel ikan kakap merah yang terdiri dari jenis fiber, fragmen, film, dan granula. Kelimpahan mikroplastik paling tinggi didominasi jenis fiber yaitu 17,98 partikel/individu pada insang dan 11,66 partikel/individu pada usus. Kelimpahan mikroplastik paling rendah secara keseluruhan yaitu pada insang dengan jenis film 0,28 partikel/individu dan jenis granula ditemukan 0,3 partikel/individu. Warna mikroplastik yang ditemui yaitu warna putih, hitam, merah, kuning, biru, transparan, dan hijau. Warna mikroplastik tertinggi yang ditemukan secara keseluruhan didominasi oleh warna putih, baik pada insang (52,45%) maupun pada usus (48,74%), sedangkan yang paling rendah adalah warna hijau yang ditemui pada insang (0,42%) dan pada usus (0,79%). Mikroplastik yang ditemui memiliki ukuran yang bervariasi yaitu <0,25 mm - >2 mm. Mikroplastik yang ditemukan pada kedua organ ikan paling banyak berukuran 0,50 mm - 2 mm. Mikroplastik berukuran <0,25 mm ditemukan sangat sedikit, baik pada usus maupun insang.
Community Structure of Mollusca in Sulamanda Beach, Kupang Regency, East Nusa Tenggara Kana, Ferderika Rame; toruan, lumban nauli lumban; Saraswati, Suprabadevi Ayumayasari
Jurnal Moluska Indonesia Vol. 8 No. 2 (2024): Oktober 2024
Publisher : Masyarakat Moluska Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54115/jmi.v8i2.101

Abstract

Molluscs (Gastropods and Bivalves) are organisms that are sensitive to environmental changes. This research was conducted at Sulamanda Beach, Mata Air Village, Central Kupang Subdistrict, Kupang Regency. This study aims to determine the community structure of Gastropods and Bivalves using the approach of species density, diversity, uniformity and dominance. Information on the community structure of Gastropods and Bivalves in Sulamanda Beach is needed in an effort to support sustainable tourism management. This research used observation method. Determination of stations using purposive sampling method. Gastropod and Bivalve sampling used line transect method by installing a 1 X 1 m² quadrant frame. Sampling of water samples for water parameters was carried out at each observation station. The results showed that Sulamanda Beach has 16 species of mollusks consisting of 12 species of gastropods from 5 families and 4 species of bivalves from 2 families. The species with the highest density was Murichorda fiscellum with a value of 2.4 Ind/m². The diversity index of Gastropods and Bivalves tends to be high with a uniformity index value tending to be moderate, while the dominance index shows a value that tends to be low. The physical and chemical parameters of the waters show that the water conditions are in good condition because they are still within the tolerance limits of the two classes. The bottom substrate is dominated by rocky sand. Therefore, the overall community structure of Gastropods and Bivalves in Sulamanda Beach, Kupang Regency is considered stable and balanced.
The Ecotourism Mangrove Suitability Assessment in Reroroja Village, Magepanda District, Sikka Regency, East Nusa Tenggara, Indonesia Calumba, Kristianti Rilenitiara; Kangkan, Alexander Leonidas; Toruan, Lumban Nauli Lumban
Journal Omni-Akuatika Vol 19, No 2 (2023): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2023.19.2.1108

Abstract

The mangrove area of Reroroja Village has the potential to be developed into an ecotourism area, because mangroves grow along the coast. This study aims to determine the suitability of mangrove areas as ecotourism areas from April to May 2023. The mangrove area was divided into two observation stations using the purposive sampling method. The study assessed various mangrove tourism suitability parameters, including mangrove thickness, species, density, debris, tides, mangrove fauna, distinctiveness, law/legality, accessibility, visitor presence, facilities, and private-owned institutions. The data was analyzed using the Tourism Suitability Index (TSI) formula, and the average suitability score for Stations I and II was 71.5%. This value falls in the S2 (Suitable) category, indicating the potential for ecotourism development in the area. The study found that the mangrove area has a rich biodiversity, including fish, crabs, molluscs, reptiles, and birds, and is well-suited for ecotourism development.Keywords: Ecotourism, Tourism Suitability Index, Mangrove, Reroroja Village.
PENDEKATAN PARTISIPATIF PENGEMBANGAN TUNA SEGAR SECOND GRADE DAN HASIL SAMPING LOIN DI DESA BALAURING, KABUPATEN LEMBATA Soewarlan, Lady Cindy; Toruan, Lumban Nauli Lumban; Boikh, Lebrina Ivanthri
Kumawula: Jurnal Pengabdian Kepada Masyarakat Vol 8, No 1 (2025): Kumawula: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kumawula.v8i1.54846

Abstract

Balauring is one of the main tuna fishing centers in Lembata Regency, East Nusa Tenggara. The tuna caught from Balauring is sold to industries in Maumere and Larantuka, where it is processed into loins for export. Tuna weighing less than 10 kg is relatively low in value, and the by-products of loin processing remain underutilized. This community service project aims to train local communities in developing appropriate strategies tailored to their specific conditions. The method used was a participatory SWOT approach. The results indicate that optimizing second-grade tuna and loin by-products can be achieved through three main strategies: diversifying processed products, expanding market reach beyond Lembata through online marketing and utilizing maritime toll transportation, and improving access to funding. Balauring merupakan salah satu sentra nelayan penangkap tuna di Kabupaten Lembata- Nusa Tenggara Timur. Produksi tuna dari Balauring dijual ke industri di Maumere dan Larantuka, kemudian dijadikan loin untuk diekspor. Pada ukuran tuna yang berukuran kurang dari 10 kg harganya relatif murah dan sisa hasil samping loin kurang dimanfaatkan. Pengabdian ini bertujuan untuk melatih masyarakat agar dapat menentukan strategi pengembangan yang sesuai dengan kondisi mereka. Teknik yang dilakukan adalah menggunakan pendekatan SWOT partisipatif. Hasilnya, optimalisasi terhadap tuna second grade dan sisa hasil samping loin dilakukan dengan tiga cara, yaitu: melakukan diversifikasi olahan, memperluas jangkauan pasar ke luar Lembata melalui pemasaran secara daring (online) dan memanfaatkan transportasi tol laut, serta peningkatan akses terhadap  pendanaan.
PEMAMFAATAN LIMBAH BAKAU UNTUK PEMBUATAN AQUASCAPE SEBAGAI USAHA MIKRO DI DESA MATA AIR PESISIR SULAMANDA: UTILIZATION OF MANGROVE WASTE FOR AQUASCAPE MANUFACTURING AS A MICRO BUSINESS IN MAT AIR VILLAGE SULAMANDA COASTAL Saraswati , Suprabadevi Ayumayasari; Toruan, Lumban Nauli Lumban; Rammang, Nixon; Namas, Benediktus Julio Ta
Jurnal Pengabdian Perikanan Indonesia Vol 3 No 1 (2023): Jurnal Pengabdian Perikanan Indonesia
Publisher : Program Studi Budidaya Perairan Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppi.v3i1.1885

Abstract

Aquascape is one form of media that can be used for fish maintenance, especially ornamental fish for home scale. Aquascape itself is the identity of life that represents the original habitat of fish. Physically, the aquarium is only a place or container. Aquascape is the art of combining aquatic plants and ornamental fish in water media. However, the existing Aquscape products are generally large in size with expensive prices so that they can only be reached by large consumers such as hotels, restaurants, and offices. The use of mangrove waste is an alternative and also the use of natural materials that are environmentally friendly. Aquascape can meet the needs of the middle to lower market and accommodate the needs of office workers who do not have a large space or place to put an aquarium, so the mini Aquascape business becomes very promising. Some of the problems faced in presenting the natural atmosphere, starting from the fish that cannot survive to the dirty and mossy fish Aquascape quickly. By conducting training on making mini Aquascapes and fish rearing techniques, especially ornamental fish, it is hoped that it can provide information to coastal community fishermen to try to apply it to home micro scale. The method used is field observation, coupled with literature studies and socialization to fishermen on the Sulamanda coast.
Co-Authors Alexander Leonidas Kangkan Boikh, Lebrina Ivanthri Calumba, Kristianti Rilenitiara Dadang Karmen Dedi Soedharma Kana, Ferderika Rame Kresna Tri Dewi Lady Cindy Soewarlan, Lady Cindy Malo, Redempta Adventa Nahak Margaretha F Tje Namas, Benediktus Julio Ta Ngai, Maria Magdalena Mau Nixon Rammang, Nixon Pit’ay, Novia Inggrid Putu Eddy Purna Wijaya Saraswati , Suprabadevi Ayumayasari Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati Suprabadevi Ayumayasari Saraswati, Suprabadevi Ayumayasari Yahyah Yahyah Yulianto Suteja