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All Journal AGRICOLA Jurnal Perikanan Universitas Gadjah Mada Musamus Fisheries and Marine Journal Bioscientist : Jurnal Ilmiah Biologi Indonesian Journal of Mollusk Agrikan: Jurnal Agribisnis Perikanan
Reny Sianturi
Jurusan Manajemen Sumberdaya Perairan, Fakultas Pertanian, Universitas Musamus, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Education Environmental Science Immunology & microbiology Social Sciences Veterinary

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Produksi Serasah Mangrove di Biangkuk, Kabupaten Merauke Dandi Saleky; Reny Sianturi
AGRICOLA Vol 10 No 2 (2020): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/ag.v10i2.2736

Abstract

Mangroves are plants that live in tidal or interface areas between terrestrial and marine ecosystems in tropical and subtropical regions. Mangrove ecosystem is one of the coastal ecosystems that have a very important role, especially for organisms, namely as a supplier of nutrients produced by mangrove litter. An observation regarding litter productivity is still limited in Papua, especially in the city of Merauke. The method used in this study is the transect method, using 3 (three) transects. Mangrove litter is taken by using a litter trap container placed under the mangrove tree. The results obtained from litter production in each transect are as follows transect 1 of 167.8 g/m²/Month, Transect 2 of 65.4 g/m²/Month, and Transect 60 g/m²/Month while density mangrove in each transect 1 transect has a higher tree density value of 65 Ind/ m² while in Transect 2 it has a total litter production of 32 Ind / m² and the mangrove density value in Transect 3 is lower compared to stations 1 and 2 which are 25 Ind/m².
Study of Correlation and Diversity of Gastropods at Mangrove Ecosystem in Payum Beach, Merauke Sendy Lely Merly; Reny Sianturi; Alfonsia Lusi Nini
Jurnal Moluska Indonesia Vol. 6 No. 1 (2022): April 2022
Publisher : Masyarakat Moluska Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54115/jmi.v6i1.56

Abstract

This study had two aims, first was to determine the index of diversity, evenness, richness and dominance of gastropods species in the mangrove ecosystem, to assess the important value index of mangroves in the mangrove ecosystem, and the second one to understand the association of gastropods and mangrove in the mangrove ecosystem in Payum Beach, Merauke Regency. This research was conducted in September-October2021. This research using method of transect with a 100 m lenght of transect size. The research location devided into two station that are distinguished by the mangrove ecosystem to see the associated mollusc species. There were 8 species of gastropods that were analyzed including: Terebralia palustris, Terebralia semistriata, Telescopium telescopium, Cassidula angulifera, Cerithidea obstusa, Littorina intermedia, Littorina pallencens, and Littorina scabra. The diversity index (H’) of gastropods is 1,9370 so it is categorized as moderate, meanwhile the richness index (R) is 0,86 and the dominance (C) 0,16 both of these categorized as low, whilst inversely proportional to the evenness index (E) which shows the number 0,93 which means high evenness so that the community is stable. Furthermore, there are 3 types of mangroves namely Bruguirea cylindrica, Lumnitzera racemosa, dan Aegialitis annulata. Nonetheless, the relationship between the abundance of individuals of gastropods and the presence of mangroves at the research sites at station I and station II tended to be weak.
Identifikasi dan Analisis Filogenetik Ikan Ekonomis Penting Oreochromis sp. dengan Pendekatan DNA Barcoding Reny Sianturi; Muhammad Dailami; Dandi Saleky
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v9i2.4027

Abstract

Species identification is one of the most basic and important factors in fisheries management. Oreochromis sp., such as tilapia (Oreochromis mosambicus) and tilapia (Oreochromis niloticus) are introduced species of fish originating from outside Merauke which are now the dominant fish and are commonly found in inland waters of Merauke. The purpose of this study was to identify the economically important fish species Oreochromis sp. which landed at Merauke Traditional Market with DNA Barcoding approach. DNA amplification with the COI gene resulted in a DNA sequence length of 655 bp with the identification result being Tilapia (Oreochromis niloticus). Based on the phylogenetic tree data and genetic distance, the DNA sequences of the samples formed the same clade as the Oreochromis niloticus sequences from GeneBank with 0% genetic distance and it was estimated that these species came from the same parents. Identification with DNA Barcoding makes it easy to identify species quickly and accurately.
ESTIMASI STOK KARBON MANGROVE DI MUARA SUNGAI KUMBE DISTRIK MALIND KABUPATEN MERAUKE Reny Sianturi; Siti Masiyah
Musamus Fisheries and Marine Journal Volume 1 Number 1, October 2018
Publisher : Faculty of Agriculture Musamus University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/mfmj.v1i1.1439

Abstract

Forests reduce and store CO2 through a process of "sequestration" that is the storage of carbon from the atmosphere and its storage in several copartments such as plants, litter, and soil organic matter. Mangrove forest is a unique and unique type of forest because it is able to adapt to environments with high salinity, soil conditions without oxygen and once in a while. ne example of mangrove forests in Indonesia is mangrove forest in the Kumbe river estuary, Merauke Regency, Papua Province. The Kumbe river estuary is one of the eastern Indonesian waters bordering the Indian Ocean. At the Kumbe river estuary there has been no research on carbon stocks in the mangrove community. So it is necessary to do research on carbon stocks in the region. In this study the measurement of carbon stocks used was done by measuring carbon above ground, and ground. Above ground carbon stock components include trees, understorey, and litter. The mechanism for measuring above ground carbon stock is done by estimating biomass, which is then converted to carbon concentration. The results of this study indicate that the carbon stocks in trees, Understorey and litter in sequence are 85.55 Mg / Ha, 392.93 Mg / Ha and 70.75 Mg / Ha; 0.78 Mg / Ha, 1.26 Mg / Ha and 1.24 Mg / Ha and 2.04 Mg / Ha, 1.28 Mg / Ha and 1.2 Mg / Ha. As for the proportion of carbon stock values ​​found in mangrove forests that trees contribute greatly to total carbon stock. Keyword : Mangrove, carbon stocks, Merauke, Kumbe
Potential Regeneration of Mangrove Coastal of Payum Beach Merauke District Stenly M.B.S Wairara; Reny Sianturi
Musamus Fisheries and Marine Journal Volume 2 Number 1, October 2019
Publisher : Faculty of Agriculture Musamus University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/mfmj.v2i1.1869

Abstract

The purpose of this study was to analyze the regeneration potential of mangroves found on the coast of Payum, Merauke Regency, Papua Province. This research was conducted in August-October 2018. The data collection technique was purposive sampling using Transect Line Plots. The sampling location was chosen based on the representation of the presence of mangroves in three locations, namely zones A, B and C. The results of this study explained that there were three tree-level mangrove species, namely Avicennia alba, Rhizophora apiculata and Sonneratia alba. Type A. alba dominates in zone A with an important value index (INP) of 205.76%, zone B does not have a certain type that dominates, while Rhizophora apiculata dominates in zone C with INP 185.35%. The potential of the three mangrove species in zones A, B and C is good. Aegialitis annulata species are only found in sapling and seedling levels. In zones A and B are classified as new while in zone C is classified as bad. This study concluded that Avicennia alba, Rhizophora apiculata and Sonneratia alba had the potential to regenerate in all three locations (Zones A, B and C) compared to Aegialitis annulata.
Kajian Molekuler Ikan Oreochromis spp. dari Perairan Daratan Merauke-Papua, Berdasarkan DNA Mitokondria Fragmen Gen Sitokrom Oksidase Subunit I Dandi Saleky; Reny Sianturi; Muhammad Dailami; Aradea Bujana Kusuma
Jurnal Perikanan Universitas Gadjah Mada Vol 23, No 1 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.61026

Abstract

Pemanfaatan perikanan secara lestari sangat diperlukan agar sumberdaya perikanan yang ada saat ini bisa terus dimanfaatkan dan juga dalam rangka pemulihan stok perikanan yang telah rusak. Ikan nila (Oreochromis niloticus) dan ikan mujair (Oreochromis mossambicus) secara luas telah dikenal sebagai salah satu spesies ikan air tawar yang penting dalam perikanan budidaya. Penelitian ini dilakukan dengan tujuan identifikasi spesies ikan Oreochromis spp. dari perairan daratan Merauke dengan menggunakan marka gen COI. Amplifikasi DNA dengan gen COI menghasilkan panjang sekuen DNA 656 bp dengan hasil identifikasi adalah O. niloticus dan O. mussambicus dengan tingkat kemiripan 100 % pada masing-masing spesies. Berdasarkan analisis filogenetik dan jarak genetik, sekuen DNA yang dianalisis membentuk clade sesuai dengn hasil indentfikasi dengan jarak genetik 0,000 - 0,002 pada ikan nila dan 0,000 pada ikan mujair. Analisis keragaman genetik ditemukan hanya 1 haplotype dari kedua jenis ikan tersebut. DNA barcode dan filogenetik dapat digunakan dalam mengidentifikasi spesies dalam pengelolaan dan konservasi.
The Perspective of Wendu Coastal Fishermen’s on The Presence of Sawfish (Pristis spp.) Reny Sianturi; Astaman Amir
JURNAL AGRIKAN (Agribisnis Perikanan) Vol 16 No 1 (2023): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v16i1.1529

Abstract

Indonesia is the world's largest producer and catcher of sharks and rays (Chondrichthyans class). Saw Stingrays (Pristis spp.) have full protection status. Anoxypristis cuspidata is a type of Saw Stingray which is predominantly caught as bycatch from nets and fishing gear by traditional fishermen operating around the waters of Merauke, Papua. One of the determinants of the success of saw stingray conservation is human resources which can be seen from their knowledge and perspective on the existence of saw stingrays. This study aims to determine the perspective of Wendu coastal fishermen on the existence of saw stingrays. This research was conducted in June 2021-March 2022. There were 92 samples in this study, using the non-probability sampling method. The type of non-probability sampling used in this study is purposive sampling. The data analysis technique was carried out using the qualitative data analysis model of Miles and Huberman. Most of the respondents saw saw stingrays 1-2 times in their lifetime. According to the perspective of Wendu coastal fishermen, the number of saw rays decreased and the size of the saw rays decreased. Most still think that saw stingrays can be used either for consumption or for sale.
Tingkat Pengetahuan Nelayan Pesisir Wendu Tentang Ikan Pari Gergaji (Pristis spp.) Astaman Amir; Wisnu I. Makhfudin; Reny Sianturi; Ivonne R. G. Kaya
AGRICOLA Vol 12 No 2 (2022): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/ag.v12i2.5035

Abstract

This study aims to determine the level of knowledge of Wendu coastal fishermen’s about sawfish. This research was conducted in June 2021-March 2022. The sample in this study was 92 people, using the non-probability sampling method. The type of non-probability sampling used in this research is purposive sampling. Data analysis technique is done by combining quantitative and qualitative data analysis. The average knowledge of the habitat reaches 68%, food reaches 75%, uniqueness reaches 97%, the use of rostrum reaches 70%, handling if accidentally caught reaches 73%, utilization status reaches 62%, reasons for protection reach 75%, protection regulations reach 94%, overall the average level of knowledge of respondents reached 77%.
Co-Authors Alfonsia Lusi Nini Aradea Bujana Kusuma Astaman Amir Astaman Amir Dandi Saleky Dandi Saleky Dandi Saleky Ivonne R. G. Kaya Muhammad Dailami Sendy Lely Merly Siti Masiyah Stenly M.B.S Wairara Wisnu I. Makhfudin