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JFMR (Journal of Fisheries and Marine Research)
Published by Universitas Brawijaya
ISSN : 2337621X     EISSN : 25810294     DOI : -
Core Subject : Science, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Engineering Environmental Science
Journal of Fisheries and Marine Research (JFMR) is dedicated to published highest quality of research papers on all aspects of : Aquatic Resources, Aquaculture, Fisheries Resources Technology and Management, Fish Technology and Processing, Fisheries and Marine Social Economic and Marine Science. This journal is jointly published by Faculty of Fisheries and Marine Science, Brawijaya University Malang Indonesia and Ikatan Sarjana Perikanan Indonesia (Ispikani). JFMR is a new journal but related to the past journal of Faculty of Fisheries and Marine Science that is Jurnal Penelitian Perikanan (JPP) with ISSN: 2337-621X (print version) and website link of www.jpp.ub.ac.id
Arjuna Subject : -
Articles 640 Documents
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FAKTOR YANG MEMPENGARUHI NILAI TUKAR PEMBUDIDAYA IKAN (NTPI) DI DANAU MANINJAU PROVINSI SUMATERA BARAT: FACTORS AFFECTING TO EXCHANGE THE RATE OF FISH FARMER IN LAKE MANINJAU, WEST SUMATERA PROVINCE Adrian, Dio; Bathara, Lamun; Warningsih, Trisla
JFMR (Journal of Fisheries and Marine Research) Vol. 7 No. 2 (2023): JFMR on August
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2023.007.02.5

Abstract

Sumatera Barat memiliki luas perairan umum (sungai, danau, rawa, telaga) seluas 69.806 ha yang mana sebanyak hanya 3.100 ha (4,4%) berpotensi dimanfaatkan untuk kegiatan budidaya. Budidaya perikanan dengan menggunakan Keramba Jaring Apung (KJA) cukup berkembang. Penelitian ini bertujuan untuk mengetahui besaran Nilai Tukar Pembudidaya Ikan (NTPi) serta faktor-faktor yang mempengaruhinya. Pada kegiatan ini Nilai Tukar digunakan untuk mengetahui kesejahteraan para pembudidaya. Kegiatan penelitian ini dilaksanakan pada bulan September 2022 di Danau Maninjau Nagari Tanjung Sani. Metode penelitian yang digunakan adalah metode survei dengan melakukan pengamatan langsung. Data dianalisis menggunakan SPSS 26. Hasil penelitian menunjukkan bahwa nilai tukar pembudidaya ikan di Nagari Tanjung Sani pada 6 petak sebesar 133, 8 petak sebesar 138 dan 10 petak sebesar 141 > 100, artinya pembudidaya ikan memiliki pendapatan lebih tinggi daripada pengeluaran atau mengalami surplus. Nilai tukar pembudidaya ikan (NTPi) Danau Maninjau Nagari Tanjung Sani sangat dipengaruhi oleh pendapatan budidaya, pendapatan non budidaya, pengeluaran budidaya dan pengeluaran non budidaya. Pengaruh paling besar yaitu pendapatan budidaya sebesar 81,5% diikuti dengan pendapatan non budidaya sebesar 5,5% dikarenakan pengaruhnya bersifat positif. Sedangkan pengeluaran budidaya dan pengeluaran non budidaya berpengaruh secara negatif dan menurunkan nilai tukar pembudidaya ikan.   In exploiting the potential of fisheries as a place to develop aquaculture activities can be carried out in sea waters and public waters. West Sumatra has an area of ​​public waters of 69,806.78 ha consisting of rivers, lakes, swamps, ponds and others. Of this area, only 3,100 ha have potential for aquaculture in public waters. In the development of aquaculture there are many aquaculture activities such as floating net cage (FNC) cultivation. In this activity the Exchange Rate is used to determine the welfare of the cultivators. This research activity was carried out in September 2022 at Lake Maninjau Nagari Tanjung Sani. The research method used is a survey method by making direct observations. Data were analyzed using SPSS 26. The results showed that the exchange rate of fish farmers in Nagari Tanjung Sani in 6 plots was 133, 8 plots was 138 and 10 plots was 141 > 100, meaning that fish farmers had higher income than expenses or experienced a surplus. The fish farmer exchange rate (FFER) of Danau Maninjau Nagari Tanjung Sani is strongly influenced by cultivation income, non-cultivation income, cultivation expenditure and non-cultivation expenditure. The biggest influence is cultivation income of 81.5% followed by non-cultivation income of 5.5% because the influence is positive. Meanwhile, cultivation expenditure and non-cultivation expenditure have a negative effect and reduce fish farmer exchange rates.
KELIMPAHAN GASTROPODA SEBAGAI BIOINDIKATOR KUALITAS PERAIRAN PADA ALIRAN SUNGAI DI DESA GILI TIMUR KECAMATAN KAMAL KABUPATEN BANGKALAN MADURA: GASTROPOD ABUNDANCE AS A BIOINDICATOR OF WATER QUALITY IN RIVER FLOW IN EAST GILI VILLAGE, KAMAL DISTRICT, BANGKALAN MADURA REGENCY Akhmad Farid; Feranita Tricha Desyderia; Apri Arisandi; Haryo Triajie
JFMR (Journal of Fisheries and Marine Research) Vol. 7 No. 2 (2023): JFMR on August
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2022.007.02.12

Abstract

Gastropoda merupakan kelompok fauna yang paling dominan dari ketuju kelas dalam fillum mollusca. Kelimpahan jenis gastropoda dapat menggambarkan kodisi perairan, serta berperan penting dalam menjaga keseimbangan ekologi di ekosistem sungai. Gastropoda merupakan biota air yang juga dapat digunakan sebagai indikator yang baik tidaknya kondisi kualitas perairan. Penelitian ini bertujuan untuk mengetahui kelimpahan gastropoda sebagai bioindikator kualitas perairan. Penelitian ini dilaksanakan pada bulan November-Desember 2022. Pengambilan sampel gastropoda dan sampel air dilakukan menggunakan metode purposive sampling dan transek, dengan 3 stasiun masing-masing stasiun 3 plot dengan melakukan pengulangan 3 kali setiap minggunya. Parameter kualitas air yang meliputi suhu, salinitas pH, kecerahan, DO, kecepatan arus, BOD, Nitrat, dan fosfat.  Jumlah kelimpahan gastropoda pada stasiun 1 yang didapatkan nilai sebesar 10,33 ind. Pada stasiun 2 didaptakan nilai 62,00 ind. Stasiun 3 mendapatkan nilai kelimpahan gastropoda sebesar 146,33 ind. Berdasarkan indeks keanekaragaman Shannon-Wiener, kualitas perairan di aliran sungai di Desa Gili Timur Kecamatan Kamal Kabupaten Bangkalan berada dalam kondisi tercemar ringan. Perairan yang belum tercemar akan menunjukkan jumlah individu seimbang sedangkan perairan yang tercemar akan menunjukkan persebaran individuyang tidak merata dan cenderung ada spesies mendominasi.   Gastropods are the most dominant group of fauna of the class in the mollusca phyla. The abundance of gastropod species can describe the codition of waters, as well as play an important role in maintaining ecological balance in river ecosystems.  Gastropods are aquatic biota that can also be used as a good indicator of whether the condition of water quality is good. This study aims to determine the abundance of gastropods as a bioindicator of water quality. Oini research was carried out in November-December 2022. Gastropod sampling and water samples were carried out using purposive sampling and transect methods, with 3 stations each station 3 plots by repeating 3 times each week. Water quality parameters include temperature, pH salinity, brightness, DO, current speed, BOD, Nitrate, and phosphate.  The total abundance of gastropods at station 1 obtained a value of 10.33 ind. At station 2 there is a value of 62.00 ind. Station 3 received a gastropod abundance value of 146.33 ind. Based on the Shannon-Wiener diversity index, the quality of the waters in the river flow in East Gili Village, Kamal District, Bangkalan Regency is in a mildly polluted condition. Unpolluted waters will show a balanced number of individuals while polluted waters will show an uneven distribution of individuals and there tends to be species dominating.
PENGARUH PERBEDAAN KONSENTRASI PVA (POLIVINIL ALKOHOL) DAN TEPUNG BUAH MANGROVE Bruguiera gymnorrhiza TERHADAP KARAKTERISTIK SIFAT FISIKA HIDROGEL: THE EFFECT OF DIFFERENT CONCENTRATIONS OF PVA (POLYVINYL ALCOHOL) AND MANGROVE FRUIT FLOUR Bruguiera gymnorrhiza ON THE PHYSICAL PROPERTIES OF HYDROGELS Anna Lailatul Fitri; Dwi Setijawati; Muhammad Firdaus; Angga Wira Perdana
JFMR (Journal of Fisheries and Marine Research) Vol. 7 No. 2 (2023): JFMR on August
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2023.007.02.6

Abstract

Tumbuhan mangrove Bruguiera gymnorrhiza merupakan tanaman sumberdaya pesisir yang banyak tumbuh di Indonesia. Buah mangrove Bruguiera gymnorrhiza bisa dijadikan tepung dan dapat digunakan dalam pembuatan produk hidrogel. Tujuan dari penelitian ini yaitu untuk mengetahui pengaruh perbedaan konsentrasi PVA dan tepung buah mangrove Bruguiera gymnorrhiza terhadap karakteristik sifat fisika hidrogel. Metode penelitian yang digunakan adalah metode eksperimental dengan menggunakan Rancangan Acak Lengkap (RAL) Faktorial dengan 2 faktor. Faktor pertama yaitu perbedaan konsentrasi PVA (1,5%, 1,75%, 2%, dan 2,25%) sedangkan faktor kedua yang digunakan yaitu perbedaan konsentrasi tepung buah mangrove Bruguiera gymnorrhiza (0%, 2,5% dan 4,5%) dengan 3 kali pengulangan. Hasil penelitian menunjukkan bahwa perbedaan konsentrasi PVA, tepung buah mangrove Bruguiera gymnorrhiza, dan interaksi keduanya memberikan hasil berbeda nyata (P<0,05) terhadap daya serap air, fraksi gel, kadar air, tensile strength, dan elongasi hidrogel. Produk hidrogel ditandai dengan kemampuan menyerap air yang tinggi. Dengan karakteristik hidrogel terhadap daya serap air, didapatkan hasil tertinggi perlakuan PVA 2% dan tepung buah mangrove Bruguiera gymnorrhiza 4,5% sebesar 287,49 ± 0,39%.   The Bruguiera gymnorrhiza mangrove is a coastal resource plant that grows a lot in Indonesia. Bruguiera gymnorrhiza mangrove fruit can be made into flour and can be used in the manufacture of hydrogel products. The purpose of this study was to determine the effect of different concentrations of PVA and Bruguiera gymnorrhiza mangrove fruit flour on the physical characteristics of the hydrogel. The research method used is an experimental method using a Factorial Completely Randomized Design (CRD) with 2 factors. The first factor is the difference in the concentration of PVA (1.5%, 1.75%, 2%, and 2.25%) while the second factor used is the difference in the concentration of the Bruguiera gymnorrhiza mangrove fruit flour (0%, 2.5% and 4, respectively). 5%) with 3 repetitions. The results showed that the different concentrations of PVA, mangrove fruit flour Bruguiera gymnorrhiza, and their interactions gave significantly different results (P<0.05) on water absorption, gel fraction, water content, tensile strength, and hydrogel elongation. Hydrogel products are characterized by their high water absorption capacity. With hydrogel characteristics on water absorption, the highest yield of PVA treatment was 2% and Bruguiera gymnorrhiza mangrove fruit meal 4.5% at 287.49 ± 0.39%.
ANALISIS PERUBAHAN GARIS PANTAI DENGAN METODE DIGITAL SHORELINE ANALYSIS SYSTEM (DSAS) TAHUN 2017-2021 (STUDI KASUS: PANTAI PARANGTRITIS, KABUPATEN BANTUL): ANALYSIS OF SHORELINE CHANGES IN 2017-2021 USING THE DIGITAL SHORELINE ANALYSIS SYSTEM (DSAS) METHOD (CASE STUDY: COAST OF PARANGTRITIS, BANTUL REGENCY) Setyoningrum, Desy; Fahreza Okta Setyawan, S.Kel.,M.T; Anggita Sekar M; Faisal Akmal; M. Falbian Arsetyo N; Imam Akbar Wicaksono
JFMR (Journal of Fisheries and Marine Research) Vol. 7 No. 2 (2023): JFMR on August
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2023.007.02.10

Abstract

Kawasan pesisir Parangtritis adalah salah satu tujuan wisata pantai yang signifikan bagi Daerah Istimewa Yogyakarta (DIY). Aktivitas pariwisata di Parangtritis dapat dibagi menjadi dua bagian, yaito aktifitas wisatawan di wilayah pasang surut (swash zone) dan pembangunan fasilitas pendukung bagi wisatawan di wilayah darat (backshore). Perubahan garis pantai disebabkan oleh faktor-faktor seperti angin, gelombang laut, dan arus laut. Tujuan dari penelitian ini adalah untuk mengetahui perubahan garis pantai yang terjadi di wilayah Pantai Parangtritis serta hubungannya dengan pasang surut dan gelombang laut. Pemantauan perubahan garis pantai dilakukan metode Digital Shoreline Analysis System (DSAS). Metode perhitungan perubahan garis pantai yang digunakan pada DSAS yaitu metode Net Shoreline Movement (NSM), Shoreline Change Envelope (SCE) dan End Point Rate (EPR). Pengamatan perubahan garis pantai mengambil rentang waktu selama 5 tahun menggunakan data tahun 2017, 2018, 2019, 2020, dan 2021. Pada hasil penelitian ditemukan fakta bahwa terjadi abrasi dan akresi pada wilayah Pantai Parangtritis. Abrasi terjadi pada daerah yang terdampak ombak secara tinggi, tanpa adanya pemecah ombak. Akresi terjadi pada wilayah dengan kemiringan landai dengan gelombang lebih lemah. Akresi tertinggi tercatat sebesar 63.31 meter, dan abrasi tertinggi tercatat dengan angka -63,35 meter. Faktor hidrooseanografi seperti gelombang yang datang menuju pantai akan mengikis dan berpengaruh terhadap berubahnya garis pantai dan besarnya angkutan sedimen. Hal tersebut didukung dengan tinggi gelombang pada daerah tersebut adalah 2,5meter dengan rata-rata periode 10,81 detik.   The coastal area of Parangtritis is one of the significant beach tourism destinations in the Special Region of Yogyakarta (DIY). Tourism activities in Parangtritis can be divided into two parts, namely tourist activities in the swash zone and the development of supporting facilities for tourists on the backshore. Changes in the coastline are caused by factors such as wind, sea waves, and ocean currents. The purpose of this research is to understand the changes in the coastline that occur in the Parangtritis Beach area and their relationship with tides and sea waves. Monitoring of coastline changes is conducted using the Digital Shoreline Analysis System (DSAS). The methods used for calculating changes in the coastline in DSAS are Net Shoreline Movement (NSM), Shoreline Change Envelope (SCE), and End Point Rate (EPR). The observation of coastline changes spans a period of 5 years, using data from 2017, 2018, 2019, 2020, and 2021. The research findings show that there were both abrasion and accretion processes in the Parangtritis Beach area. Abrasion occurred in areas heavily impacted by high waves without the presence of wave breakers. Accretion took place in areas with gentle slopes and weaker waves. The highest accretion recorded was approximately 63.31 meters, while the highest erosion reached -63.35 meters. Hydrooceanographic factors, such as waves approaching the coast, erode the shoreline and influence the change in coastline and sediment transport. This is supported by the fact that the wave height in the area is 2.5 meters with an average period of 10.81 seconds.
KARAKTERISTIK ORGANOLEPTIK DAN FISIKO-KIMIA SE’I IKAN TUNA DENGAN PEWARNA ALAMI ANGKAK: ORGANOLEPTIC AND PHYSICO-CHEMICAL CHARACTERISTICS OF TUNA FISH WITH NATURAL DYEING ANGKAK Hardoko, Hardoko; Suprayitno, Eddy; Tambunan, Jenny E.; Lestari, Santi Dwi
JFMR (Journal of Fisheries and Marine Research) Vol. 7 No. 2 (2023): JFMR on August
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2023.007.02.7

Abstract

Se’i merupakan produk olahan daging asap khas NTT yang berbentuk irisan memanjang, beraroma asap cukup kuat, dan berwarna coklat sehingga terkadang kurang menarik konsumen. Dilain hal terdapat angkak sebagai pewarna alami yang aman dan sudah diterapkan berbagai produk pangan sehingga warna atau penampilan produk menjadi lebih menarik. Oleh karena itu dilakukan penelitian yang bertujuan untuk memperbaiki performa se’i ikan tuna dengan mengaplikasikan pewarna alami  angkak. Metode penelitian yang digunakan metode eksperimen dengan perlakuan perendaman (marinasi) daging ikan tuna dalam larutan angkak dan bumbu selama 0, 6, 12, 24 jam, dan dilanjutkan dengan proses pengasapan sehingga dihasilkan se’i tuna-angkak.  Hasilnya menunjukkan bahwa se’i tuna memunyai skoring intensitas  warna merah sampai merah kecoklatan, skoring  intensitas aroma asap sedikit berasa dan beraroma asap, bertekstur agak empuk, dan berkadar air 38,67 – 55,33%. Se’i tuna-angkak yang paling disukai adalah hasil hasil marinasi selama 6 jam. Se’i tuna hasil marinasi 6 jam mempunyai nilai hedonik keseluruhan 6,6 (suka-sangat suka), nilai skoring intensitas  warna 4,4 (merah), aroma asap 3,5 (agak beraroma asap), skoring intensitas tekstur 4,2 (agak empuk), kadar air  38,67%, dan kadar peroksida 0,22 meq/Kg, serta nilai warna oHue 36,46 dengan L (lightnes) 68,47 (merah cerah).   Se'i is a processed smoked meat product typical of NTT which has the shape of long slices, has quite a strong smell of smoke, and is brown in color so that it is sometimes less attractive to consumers. On the other hand, Angkak is a natural dye that is safe and has been used in various food products so that the color or appearance of the product becomes more attractive. Therefore, a research was carried out with the aim of improving the performance of tuna se'i by applying the natural Angkak dye. The research method used was the experimental method by immersing (marinating) tuna meat in a solution of Angkak and seasonings for 0, 6, 12, 24 hours, and followed by the smoking process to produce se’i tuna Angkak. The results show that se'i tuna has a red to brownish red color intensity score, a smoke aroma intensity score with a slight taste and smell of smoke, a slightly soft texture, and a water content of 38.67 - 55.33%. The most preferred se'i tuna Angkak is the result of marination for 6 hours. Se'i tuna marinated for 6 hours has an overall hedonic value of 6.6 (likes to very much), color intensity scoring value is 4.4 (red), smoke aroma is 3.5 (slightly smells of smoke), texture intensity score is 4.2 (a bit soft), 38.67% water content, and 0.22 meq/Kg peroxide content, and oHue color value 36.46 with L (lightness) 68.47 (bright red).
POLA PERTUMBUHAN DAN BAGIAN YANG DAPAT DIMAKAN DARI TEREBRALIA PALUSTRIS (GASTROPODA:POTAMIDIDAE): GROWTH PATTERN AND EDIBLE PARTS OF TEREBRALIA PALUSTRIS (GASTROPODA:POTAMIDIDAE) Merly, Sendy Lely; Rosa D. Pengaribuan; Lindon R. Pane; Obet Burbe
JFMR (Journal of Fisheries and Marine Research) Vol. 7 No. 3 (2023): JFMR on November
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2023.007.03.2

Abstract

Gastropoda memegang peranan yang penting bagi ekosistem hutan mangrove, karena berasal dari famili Potamididae yang merupakan organisme asli dari hutan mangrove. Perubahan pada ekosistem ini telah meningkatkan aktivitas manusia mengancam keberadaan ekosistem mangrove termasuk gastropoda. Penelitian ini dilaksanakan selama 2 Bulan yakni Juni sampai Juli tahun 2021 di Ekosistem Hutan Mangrove di Muara Sungai Maro Pesisir Pantai Lampu Satu Kabupaten Merauke, Papua  yang bertujuan untuk menganalisis pola pertumbuhan serta Bagian Yang Dapat Dimakan dari gastropoda spesies Terebralia palustris. Metode yang digunakan untuk pengambilan sampel yakni Purposive sampling method dengan jumlah sampel yang dikumpulkan sebanyak 75 individu/stasiun penelitian dan terdapat 3 stasiun penelitian. Hasil penelitian menunjukkan spesies Terebralia palustris memiliki pola pertumbuhan pada ketiga stasiun penelitian yakni Allometrik Negatif dengan pertambahan panjang lebih cepat dibanding pertambahan berat. Sementara itu, analisis terhadap Bagian Yang Dapat Dimakan (BYDD) spesies Terebralia palustris di muara Sungai Maro Pantai Lampu Satu dikelompokkan ke dalam 4 (empat) kategori yakni Kategori I (16,34 -19,99 g) presentase BYDD berkisar antara 5-29%, Kategori II (12,70-16,33 g) presentase BYDD berkisar antara 3-46%, Kategori III (9,05-12,69 g) presentase BYDD berkisar antara 4-42%, dan Kategori IV (5,40-9,04 g) presentase BYDD berkisar antara 15-58%.  Berdasarkan hal tersebut, kategori ke-IV merupakan kategori dengan nilai persentase tersebar dibandingkan dengan ketiga kategori lainnya.   Gastropods have playing an important role at mangrove forest ecosystem, belong to family of Potamididae which is known as original species in mangrove forest. Changing in this ecosystem couldn’t be denied through the increasing of anthropogenic activity threatened the existences of mangrove ecosystem including gastropods. This research was carried out for 2 months from June to July 2021 at the Mangrove Forest Ecosystem at the Estury of Maro River Pantai Lampu Satu at Merauke Regency, Papua. The aims of this study were to analyze the growth pattern and edible parts of Terebralia palustris. Purposive Sampling method used obtain and collect the sample. Moreover, the number of samples collected was 75-76 individuals at each sampling site and there are 3 stations in totals. The result elucidates that the growth pattern of Terebralia palustris in every research station showed a negative allometric growth pattern, where gain the length was more fast compare with the gain of weight. Furthermore, for the Edible Parts analysis of Terebralia palustris was devided info 4 (four) categories there are (16,34-19,99 g) with edible parts percentage ranged from 5-29%, Second category (12,70-16,33 g) with edible parts percentage ranged from 3-46%, Third category (9,05-12,69 g) and the ranged of edible parts percentage starts from 4 until 42%, and lastly the forth category (5,40-9,04 g) ranged percentage 15-58% of edible parts. Based on that, the forth category was the highest category of edible parts compared to the other three categories.
Asosiasi Siganus canaliculatus di Padang Lamun Pulau Melahing dan Pulau Kedindingan Kota Bontang Kalimantan Timur: The Association of Siganus canaliculatus in Seagrass Beds Melahing and Kedindingan Island Bontang City, East Kalimantan Irawan, Aditya; Jailani, Jailani; Lily Inderia Sari
JFMR (Journal of Fisheries and Marine Research) Vol. 8 No. 1 (2024): JFMR on March
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2024.008.01.9

Abstract

Siganus canaliculatus merupakan spesies yang hidup bergerombol dan menjadikan padang lamun sebagai habitatnya. Asosiasi S. canaliculatus pada fase biologisnya berkaitan dengan karaktersitik spesies lamun penyusun padang lamun. Tujuan penelitian untuk mengetahui sebaran individu S. canaliculatus di padang lamun Pulau Melahing dan Pulau Kedindingan Kota Bontang-Kalimantan Timur. Penelitian dilaksanakan pada bulan Maret – Desember 2021. Lokasi pengambilan sampel terbagi menjadi 2 stasiun yang didasarkan dari karakteritik spesies lamun penyusun padang lamun. Pengambilan sampel S. canaliculatus menggunakan alat tangkap pasif yaitu trap net. Pengambilan sampel lamun dilakukan dengan metode transek, sampel air maupun substrat dasar mengikuti pola transek lamun. Analisis hubungan antara panjang total  S. canaliculatus dengan spesies lamun menggunakan uji korelasi Pearson Product Moment. Spesies lamun yang ditemukan terdiri dari 7 spesies dan jumlah individu S. canaliculatus yang tertangkap selama penelitian sebanyak 427 individu. Siganus canaliculatus pada fase belum dewasa (pre mature) berasosiasi erat dengan H. minor,  C. serrulata dan C. rotundata. Siganus canaliculatus pada fase dewasa (mature) berasosiasi erat dengan E. acoroides.Siganus canaliculatus is a species that lives in groups and makes seagrass beds its habitat. The association of S. canaliculatus in their biological phase is related to the characteristics of seagrass species that make up seagrass beds. The aim of the research was to determine the distribution of S. canaliculatus individuals in the seagrass beds of Melahing and Kedindingan Island, Bontang City, East Kalimantan. The study was carried out in Maret – Docember 2021. The sampling location was divided into 2 stations based on the characteristics of the seagrass species that make up the seagrass beds. Siganus canaliculatus sampling using passive fishing gear, namely trap net (belat : local name). Seagrass sampling was carried out using the transect method and samples of water and soil texture followed the seagrass transect pattern. Analysis of the relationship between the total length of S. canaliculatus and seagrass species using the Pearson Product Moment correlation test. The seagrass species found consisted of 7 species and the number of S. canaliculatus individuals caught during the study was 427 individuals. Siganus canaliculatus in the immature phase (pre mature) is closely associated with H. minor, C. serrulata and C. rotundata. Siganus canaliculatus in the mature phase is closely associated with E. acoroides.
Deteksi Intrusi Air Laut dengan Pengukuran TDS dan Konduktivitas pada Sumur Bor Pantai Amal Tarakan: Seawater Intrusion Detection by Measurement of Total Dissolved Solids and Electrical Cconductivity at Pantai Amal Tarakan Drill Well Heni Irawati; Tuty Alawiyah; Daraisa, Daraisa; M. Gandri Haryono; Nuraidah, Nuraidah
JFMR (Journal of Fisheries and Marine Research) Vol. 8 No. 1 (2024): JFMR on March
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2024.008.01.12

Abstract

Kelurahan Pantai Amal Kota Tarakan berbatasan langsung dengan lautan yang dapat mengakibatkan rentannya kondisi kualitas air tanah. Sumur bor sebagai salah satu upaya penyediaan air bersih berpotensi mengalami intrusi air laut. Intrusi air laut merupakan proses infiltrasi air laut ke dalam tanah. Penelitian ini bertujuan untuk mendeteksi potensi intrusi air laut dengan pengukuran Total Dissolved Solids (TDS) dan konduktivitas di Kelurahan Pantai Amal Kota Tarakan. Penelitian dilakukan pada 5 lokasi sampling. Penentuan lokasi dilakukan secara purpossive sampling, sedangkan metode yang digunakan untuk melihat keterkaitan antar parameter adalah regresi linear berganda. Hasil penelitian menunjukkan bahwa pengukuran TDS secara berturut-turut 62; 60,3; 146; 57; dan 153 mg/L. Nilai tersebut masih di bawah standar baku mutu air berdasarkan Permenkes RI No 32 Tahun 2017 untuk keperluan hiegiene sanitasi. Konduktivitas tiap stasiun secara berturut-turut dengan jarak antara sumur bor ke garis pantai adalah 310,45 µS/cm dan 692 m; 1125 µS/cm dan 62 m; 239 µS/cm dan 163 m; 1019 µS/cm dan 112 m; serta 406 µS/cm dan 360 m. Hasil analisis parameter konduktivitas dan TDS menunjukkan bahwa tidak terdeteksi adanya intrusi air laut pada sumur bor Pantai Amal Tarakan. Analisis menggunakan regresi linear berganda juga menunjukkan bahwa tidak ada pengaruh antara jarak dan kedalaman terhadap konduktivitas.Pantai Amal Village, Tarakan City, is directly adjacent to the ocean leads to the vulnerability of groundwater quality conditions. Drill well, one of the efforts to provide clean water, has the potential to experience seawater intrusion. Seawater intrusion is the process of infiltrating seawater into the ground. This study aims to detect potential seawater intrusion by measuring TDS and conductivity in Pantai Amal Village, Tarakan City. The study was conducted at five sampling locations. The location is determined by purposive sampling, while the method used to see the relationship between parameters was multiple linear regression. The results showed that the TDS measurements were 62; 60.3; 146; 57; and 153 mg/L. This value is still below the water quality standard based on the Ministry of Health of the Republic of Indonesia No. 32 of 2017 for sanitation hygiene purposes. The conductivity for each station successively with the distance between the borehole to the shoreline are 310.45 µS/cm and 692 m; 1125 µS/cm and 62 m; 239 µS/cm and 163 m; 1019 µS/cm and 112 m; and 406 µS/cm and 360 m. The results of the analysis of conductivity and TDS showed that no sea water intrusion was detected in the drilled wells of Pantai Amal Tarakan. Analysis using multiple linear regression also shows that there is no influence between distance and depth on conductivity.
Analisis Finansial Ekowisata Mangrove Lantebung: Financial Analysis of Lantebung Mangrove Ecotourism Community Sabar, Adrayanti; Kasri, Kasri
JFMR (Journal of Fisheries and Marine Research) Vol. 8 No. 1 (2024): JFMR on March
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2024.008.01.5

Abstract

Permasalahan Ekonomi khususnya masyarakat pesisir Indonesia saat ini sudah menjadi hal yang yang alamiah kita temukan. Terutama masyarakat pesisir yang terletak di wilayah terpencil atau termarginalkan. Dampak dari permasalahan tersebut adalah terjadinya perubahan atau penurunan kualitas lingkungan pesisir. Permasalahan ekonomi yang dialami masyarakat disebabkan karena rendahnya pendapatan masyarakat pesisir, juga disebabkan karena naik dan turunnya produksi, pengeluaran dan pendapatan masyarakat yang dipengaruhi oleh berbagai hal. Tujuan dari penelitian ini yaitu untuk menganalisis besaran biaya, penerimaan dan pendapatan masyarakat.Metode yang digunakan yaitu analisis deskriptif dari hasil pengamatan dilapangan. Hasil penelitian menunjukkan bahwa Rata-rata total pengeluaran masyarakat ekowisata mangrove Lantebung sebesar Rp. 1.365.733, rata-rata penerimaan sebesar Rp. 2.731.133 dan rata-rata pendapatan masyarakat sebesar Rp. 1.365.400. Dari hasil analisis, besar atau kecilnya pendapatan yang diperoleh oleh suatu rumah tangga dipengaruhi oleh penerimaan dan biaya yang dibutuhkan. Rumah tangga yang memiliki penerimaan yang tinggi cenderung memiliki pendapatan yang tinggi pula, namun tidak terlepas pula dari bagaimana rumah tangga itu mengelolah pengeluarannya.Economic problems, especially for coastal communities in Indonesia, have become a natural thing for us to find. Especially coastal communities located in remote or marginalized areas. The impact of these problems is a change or decrease in the quality of the coastal environment. The economic problems experienced by the community are caused by the low income of coastal communities, also caused by the rise and fall in production, expenditure and income of the community which are influenced by various things. The purpose of this study is to analyze the amount of costs, acceptance and income of the community. The method used is descriptive analysis of the results of field observations. The results showed that the average total expenditure of the Lantebung mangrove ecotourism community was Rp. 1,365,733, the average revenue is Rp. 2,731,133 and the average income of the community is Rp. 1,365,400. From the results of the analysis, the size of the income earned by a household is influenced by the income and expenses required. Households that have high income tend to have high income too, but this cannot be separated from how the household manages its expenses.
In Vitro Anti-Vibrio Activity of Miana Leaves (Coleus scutellarioides (L) Benth) Basir, Buana; Alim Isnansetyo; Indah Istiqomah
JFMR (Journal of Fisheries and Marine Research) Vol. 8 No. 1 (2024): JFMR on March
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2024.008.01.7

Abstract

The aim of this research is to determine the bioactive compounds of miana leaves of Coleus scutellarioides (L) Benth against Vibrio spp.. This research was carried out from April to August 2018 at the Fish Pests and Diseases Laboratory, Department of Fisheries, Gadjah Mada University. Miana leaf samples were dried at room temperature, macerated with ethanol solvent and tested for antibacterial activity. Separation of bioactive compounds was carried out using liquid partition and silica gel using the column chromatography method. MIC (minimum inhibitory concentration) is applied to evaluate antibacterial activity. The results showed that the highest antibacterial activity was found in the chloroform fraction with inhibitory zone diameters for V. parahaemolitycus, V. alginolitycus, and V. harveyii of 25 mm, 26 mm, and 20 mm at a dose of 20 µg/disk. These findings indicate that the antibacterial activity of miana leaf crude extract is comparable to oxytetracycline with inhibition zones of 25 mm, 31 mm and 20 mm respectively against similar bacterial strains at 20 µg/disk. Therefore, miana leaves are a prospective natural source of anti-vibrio compounds.

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