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DISTRIBUTION OF CHLOROPHYLL-a CONCENTRATION IN WEST SUMATERA CONNECTED BY THE RESULTS OF TUNA’S ARREST Destuanti, Nia; YulikaSari, T. Ersti; Jhonnerie, Romie
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Chlorophyll-a is one of indicator’s level in fertility waters that be found in phytoplankton. The distributed of Chlorophyll-a concentration can be indication that so many fish in the waters. One of potential fishing in Hindia’s ocean, west Sumatera section is Thunnus obesus and Thunnus albacares to identifed the content of Chlorophyll-a can be used aqua MODIS satelite. The goals of this research is to know the distribution of Chlorophyll-a concentration and the effort arrest in spasial and temporal (montly, seasonal, yearly) and then to knew the correlation between effort arrested with Chlorophyll-a data. This research used density’s analysis by used QGIS. The correlation between Chlorophyll-a with effort arrested (CPUE) that can be found from analysis of coefficient correlation for montly periods by the highestvalue r: 0,72 in May with the results both of variabel had powerful correlation and the lowest value r: 0,02 in December with the results both of variabel had weak correlation. The highest of coefficient correlation in seasonal period with r: 0,47 in trantition seasonal as the results both of variabel had medium correlation and the lowest value r: 0,04 in west season as the results both of variabel had weak correlation.Keywords: Hindia’s Ocean, bigeye tuna (Thunnus obesus), yellowfin tuna (Thunnus albacares), chlorophyll-a, Aqua MODIS
KLASIFIKASI TERBIMBING BERBASIS OBJEK MENGGUNAKAN ALGORITMA NEAREST NEIGHBOR UNTUK PEMETAAN MANGROVE DI SUNGAI KEMBUNG, PULAU BENGKALIS Deswina, Deswina; Oktorini, Yossi; Jhonnerie, Romie
Maspari Journal : Marine Science Research Vol 10, No 2 (2018): Edisi Juli
Publisher : UNIVERSITAS SRIWIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1227.943 KB) | DOI: 10.36706/maspari.v10i2.5950

Abstract

Ekosistem mangrove merupakan suatu komunitas tumbuhan yang khas, dipengaruhi pasang-surut air laut. Sungai Kembung merupakan salah satu ekosistem mangrove di Pulau Bengkalis dan saat ini cenderung mengalami tekanan seperti adanya aktivitas budidaya tambak udang dan penebangan liar. Penginderaan jauh dapat dijadikan sebagai solusi dalam pemantauan ekosistem mangrove. Penelitian ini bertujuan untuk memetakan penutup lahan mangrove Sungai Kembung menggunakan citra satelit Sentinel-2A dengan penerapan algoritma klasifikasi nearest neighbor. Segmentasi multiresolusi dengan nilai parameter scale yang berbeda (10, 30, 50, 100 dan 150) digunakan untuk menghasilkan objek penutup lahan. Hasil penelitian menunjukkan bahwa segmentasi terbaik diperoleh dari nilai scale 30 dengan jumlah objek sebanyak 10.750. Semakin besar nilai scale maka jumlah objek yang tersegmen semakin sedikit serta nilai akurasi keseluruhan yang dicapai cenderung menurun. Hasil perhitungan matrik kesalahan menunjukkan akurasi keseluruhan terbaik sebesar 74%. Penelitian ini merekomendasikan penerapan nearest neighbor sebagai algoritma klasifikasi alternatif untuk memetakan penutup lahan mangrove.
MANGROVE COVERAGE CHANGE DETECTION USING LANDSAT IMAGERIES BASED ON HYBRID CLASSIFICATION IN KEMBUNG RIVER, BENGKALIS ISLAND, RIAU PROVINCE Romie Jhonnerie; Vincentius P Siregar; Bisman Nababan; Lilik Budi Prasetyo; Sam Wouthuyzen
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 6 No. 2 (2014): Electronik 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 (905.945 KB) | DOI: 10.29244/jitkt.v6i2.9024

Abstract

ABSTRACT The limited scientific information and lack of attention from stakeholders on the status of mangroves in Kembung River functioned as a basis of this study. Four series of Landsat data recorded in 1996, 2002, 2010, and 2013 were used to map mangrove land cover and changes detection. Hybrid classification technique, a combination of the object-based and random forest classifications, were applied in this study. The result showed that based on hybrid classification, mangrove coverage was detected within 82.6-88.4% overall accuracy. Change detection analyses showed that the mangrove area of Kembung River was relatively stable. For nearly two decades, we found mangrove loss about 197.2 ha, gain of 251.1 ha, and unchanged of 2904.9 ha. Changes in mangrove were generally caused by anthropogenic factors such as mangrove replanting, logging, changes over the function of mangroves into the road, embankment, settlement, shrimp farms, and natural growth. Serious attention from various parties are needed to maintain the existence and sustainablility of mangrove ecosystems in Kembung River.   Keywords: Mangrove, Sungai Kembung, monitoring, Landsat, hybrid classification
Penyediaan format isian berbasis komputer untuk pencatatan pendistribusian bahan bakar minyak bersubsidi di SPBU-N Koperasi Perikanan Pantai Madani Kabupaten Bengkalis Miswadi Miswadi; Romie Jhonnerie; Yossi Oktorini
Unri Conference Series: Community Engagement Vol 1 (2019): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.1.130-138

Abstract

The cooperative of Perikanan Pantai Madani is the institution of a public refueling station for fishermen (SPBU-N) who distributes subsidized diesel fuel for fishing activities in the Pambang Pesisir Village and surrounding areas. All purchases transactions were implemented manually and used common counting tool and recounts occur to retrieve information for the needs of monthly and annual reports. This empowerment aimed to provide convenienced for SPBU-N manager due to gain information for recapitulation of subsidized fuel distribution, and the daily (monthly) and annual stock reports to PT Pertamina can be delivered on time, confidently. The mothods used were presentation, technical guidance and monitoring. The result of these activities were the availability of a standard form which developed from real transaction data (2014-2018). The SPBU-N manager has used the form provided and recorded the distribution of subsidized fuel oil for 2019, which made easier for the manager obtained the information needed for reporting since daily records have been integrated with the monthly and annual report information needs.
CAPABILITY AND SWIMMING ENDURANCE OF TAPAH FISH (Wallago leeri) IN ROTATED TANK (FLUME TANK) Ghifari, Dwika; Nofrizal, Nofrizal; Jhonnerie, Romie
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

ABSTRACT Tapah fish (Wallago leeri) is a type of freshwater fish with high economic value. Swimming speed and endurance (Wallago leeri) observed in swimming chanel flume tank. The purpose of this study was to test the endurance and swimming speed of tapah fish. This research was conducted on 1-15 November 2018 in the Laboratory of  Fishing Gear and Material of the Faculty of Fisheries and Marine, University of Riau. The method used in this study was an experiment in which of testing is done directly with the number of samples used were 20 fish with an average body length of 27.2 cm and was obtained a standard deviation of body length (+ 2.22 cm). Based on the testing results obtained sustained tapah fish swimming speed sustained <0.42 TL / sec, maximum sustained 0.42 TL / sec (11.50 cm / sec), prolonged ranges from 0.42-2.23 TL / sec, burst swimming speed 2.23 TL / sec. The relationship between swimming speed and endurance of tapah fish swimming is negative correlation with the value (R2 = 0.89) which means that the endurance of fish swimming decreases if it is in a situation of high swimming speed and the ability of fish swimming is drastically reduced. Based on the results of the test it can be recommended for the cultivation floating cages the tapah fish can use the waters with currents of 0.42 TL / sec (11.50 cm / sec) which is the daily swimming speed of the tapah fish. Key word : Swimming Speed, Ability and Endurance,Tapah Fish
Partisipasi anggota pokdarwis dalam program desa binaan untuk pengembangan ekowisata terintegrasi di Kampung Rawa Mekar Jaya Kecamatan Sungai Apit Kabupaten Siak Nurul Qomar; Ahmad Muhammad; Idwar Idwar; Sigit Sutikno; Zuli Laili Isnaini; Ahmad Nawawi; Romie Jhonnerie
Unri Conference Series: Community Engagement Vol 1 (2019): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.1.670-677

Abstract

In 2016, a number of villagers in Kampung Rawa Mekar Jaya founded a ”pokdarwis,” a group of villagers who were eager to manage a remnant of mangrove forest for ecotourism, which is situated on the bank of Rawa River. The establishment of touristic infrastructure and the continuing promotion have attracted visitors from other localities. However, the increasing number of visitors has caused damages of the existing infrastructure. During 2018-2019, Riau University’s Institute for Researches and Community Services has launched a Village Foster Program in Kampung Rawa Mekar Jaya with the objective of improving local community’s capability of managing the mangrove forest remnant, particularly by integrating ecotourism with stingless beekeeping for honey production. Some activities that have been done included: (a) mapping of mangrove forest; (b) mangrove tree naming and labelling; (c) training for mangrove eco-guiding; (d) establishment of stingless beekeeping site with enriched food plants. Members of pokdarwis showed enthusiasm by joining these activities since they were aware of the importance of these activities. However, it was the leader of the pokdarwis who has played a more important role as a motivator with remarkable attitudes, such as being honest, dependable and highly praising equality.
DETERMINING THE PRIORITY OF FISHING EQUIPMENT BASED ON HONESTYTHE ENVIRONMENT USING THE ANALYTIC HIERARCHY PROCESS IN TANAH MERAH VILLAGE,INDRAGIRI Audina Agustin Syam; Nofrizal Nofrizal; Romie Jhonnerie
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 2 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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                                                  AbtracThis research was carried out from March 2019 to April at Tanah Merah Village, Tanah Merah District, Indragiri Hilir Regency, Riau Province. The purpose of this study is to determine the level of environmental friendliness of fishing gear operating in the waters of Tanah Merah Village and determine which fishing gear is a priority to be developed.The method used in this study is a survey method,where the author goes directly to the field to evaluate fishing gear such as gillnets, kurau nets, and togok operated by Tanah Merah fishermen.          Based on the results of environmental friendliness scores that from the results of interviews and identification of fishing gear directly, it was found that the higher score was on gillnet fishing gear (gillnet) followed by kurau and togok nets.Where the score of the level of friendliness for gillnets is 31, kurau nets 26,95, and togok 24,5.And the fishing gear that is the priority is gillnet with a weight value of 0,503345, then followed by fishing gear for kurau nets with a weight value of 0,337725 and togok fishing gear with a weight value of 0,158883.Keywords :environmental friendliness of fishing gear, fishing gear priority 
STUDY ON UTILIZATION OF THE SASAK FISH LANDING BASE FACILITY, PASAMAN BARAT DISTRICT WEST SUMATRA PROVINCE Pipit Yerma Yernis; Syaifuddin Syaifuddin; Romie Jhonnerie
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 2 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

                                                    Abtract            This research was carried out in June 2019 at the Sasak Fish Landing Base, West Pasaman Regency, West Sumatra Province. The purpose of this study was to obtain information about the type of facility, condition of the facility, capacity, and to find out the level of utilization of the facilities that support the smooth operation of fisheries in PPI Sasak. The method used in this research is a survey method.            PPI Sasak is equipped with several facilities such as basic facilities, functional facilities and supporting facilities. The main facilities consist of a pier, port land, harbor pond, PPI road, functional facilities consist of TPI, PPI Sasak office, fish warehouse, ice warehouse, while supporting facilities consist of PPI Sasak official house and post guard. The activities at PPI Sasak are landing of catches, replenishment of supplies, repair and maintenance of fishing gear, mooring of fishing vessels and ship departure activities.            All of the facilities at PPI Sasak have been utilized and have been used according to their function. Of all the existing facilities, only the pier, port pool and TPI are calculated for their use. When viewed from the calculation of the level of facility utilization, it shows that the length of the pier for the loading dock is 30 m while the available wharf is 240 m with a utilization rate of 0.0843%. The required pool area from the results of the analysis carried out is 2,346 m2 with an available pool area of 800 m2 with a pool area utilization rate of 0.00293%. While the required pool depth is 1.6 m with the availability of a 3 m pool depth with a utilization rate of 0.5333%, while for the needs of TPI in PPI Sasak it is 291.6 m while the existing TPI area is 384 m, the percentage of utilization of TPI area is 0, 7593%.Keywords: Facilities, Study of Facility Utilization, PPI Sasak,
HASIL TANGKAPAN SAMPINGAN (BYCATCH DAN DISCARD) PADA ALAT TANGKAP GOMBANG (FILTER NET) SEBAGAI ANCAMAN BAGI KELESTARIAN SUMBERDAYA PERIKANAN . Nofrizal; Romie Jhonnerie; Alit Hindri Yani; . Alfin
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 9 No. 2 (2018): Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (903.992 KB) | DOI: 10.29244/jmf.9.2.221-233

Abstract

ABSTRACTFilter net has a mesh size in small size pockets of the net. This allows filter net has the potential to be non-selective fishing gear about the fish size and the target species catch. If the fishing gear allowed, hence its existence will ultimately have a negative impact on the sustainability of fisheries resources, especially in coastal waters. The objective of this research is to calculate compositions and proportions of the main catch, bycatch and discard of the filter net. It is expected by knowing  the composition and proportion of the main catch, bycatch and discard can provide an overview  of the pressure on the stock and sustainability of fisheries resources in  waters where it is operated. This research was used survey method. A series of survey activities was conducted directly in the field to identify and count species of filter net‘s fishing catches. Based on the main catch, bycatch and discard of the filter net, it shows that Sergetes similis is the dominant species caught bythe filter net(98.455%).  The main catch for Escualosa thoracata reaches 1.354%. Besides, the main catches that were caught were Metapenaus monocerus, Parapenaeopsis sp, Panulirus sp and Paneeus monodon with the catch percentage ranging from 0.011 to 0.024%. Percentage of by-catches reached 0.04-0.00004% of the 24 species caught and the catch removed was around 0.001-0.0005% of the 3 species caught.Keywords: bycatch, discard, filter net, fisheries resources, main catchABSTRAKGombang memiliki ukuran mata jaring pada kantong berukuran kecil. Hal ini memungkinkan alat tangkap gombang berpotensi menjadi alat tangkap yang tidak selektif terhadap ukuran ikan dan jenis yang menjadi sasaran tangkapannya. Apabila alat tangkap ini dibiarkan, maka keberadaannya pada akhirnya akan memberikan dampak yang negatif terhadap keberlanjutan sumberdaya ikan terutama di perairan pantai. Tujuan penelitian ini adalah untuk menghitung komposisi dan proporsi hasil tangkapan utama (main catch), hasil tangkapan sampingan (bycatch) dan hasil tangkapan yang dibuang (discard).Diharapkan dengan mengetahui komposisi dan proporsi hasil tangkapan utama, sampingan dan yang dibuang dapat memberikan gambaran tentang tekanan terhadap stok dan kelestarian sumberdaya perikanan di perairan dimana gombang dioperasikan.Metode yang digunakan dalam penelitian ini adalah metode survei.Serangkaian aktivitas survei dilakukan secara langsung di lapang untuk mengidentifikasi dan menghitung jenis spesies yang tertangkap oleh alat tangkap gombang.Berdasarkan persentase hasil tangkapan utama, sampingan dan buangan per jenis, menunjukkan  Sergetes similis merupakan spesies yang dominan tertangkap oleh alat tangkap gombang (98,455%). Hasil tangkapan utama untuk Escualosa thoracata mencapai 1,354%. Selain itu hasil tangkapan utama yang tertangkap ialah Metapenaus monocerus, Parapenaeopsis sp, Panulirus sp dan Paneeus monodon dengan persentase hasil tangkapan berkisar 0,011-0,024%. Persentase hasil tangkapan sampingan mencapai 0,04-0,00004% dari 24 spesies yang tertangkap dan hasil tangkapan yang dibuang berkisar 0,001-0,0005% dari 3 spesies yang tertangkap.Kata kunci: bycatch, discard, gombang, sumberdaya perikanan, main catch
PEMANFAATAN KAYU MANGROVE OLEH MASYARAKAT SUKU ASLI SUNGAI LIONG PULAU BENGKALIS Miswadi, Miswadi; Firdaus, Ramses; Jhonnerie, Romie
Dinamika Maritim Vol 6 No 1 (2017): Dinamika Maritim, Vol. 6 No. 1, August 2017 (Special Edition)
Publisher : Pusat Penelitian Sumberdaya Pesisir dan Laut, Universitas Maritim Raja Ali Haji, Indonesia

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Abstract

Mangrove wood is the main source indigenous communities (Suku Asli) to meet the economic needs of their household. Our purposes were to describe the level of used of mangrove wood by indigenous communities at Liong River, Bengkalis Island during February to May 2014. Primary data were collected through observation and interview then data described descriptively. Results showed that mangrove woods utilized by the communities to meet the raw material of mangrove charcoal and stakes needs as the main uses while fire woods additional benefit for them. The woods rate collection was found different and influenced by tidal conditions. During spring tide they might collected 700-750 kg/person/ and 70-80 logs/person/day for charcoal and stakes respectively, while neap tides they collected 600-650 kg/person/day and 40-50 logs/person/day. We concluded that exploitation of mangrove wood in the Liong River was very high. There should be restrictions on the numbers of mangrove wood utilization, for sustainable uses.