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Juvenil: Jurnal Ilmiah Kelautan dan Perikanan
Published by Universitas Trunojoyo Madura
ISSN : -     EISSN : 27237583     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science
Juvenil: Journal of Marine and Fisheries Sciences, is a scientific journal in the field of marine and fisheries science published electronically and periodically four times a year by the Department of Marine Affairs and Fisheries, Trunojoyo University, Madura. This journal aim to become a medium of dissemination of high quality research and scientific note in the fiend of marine and fisheries. This journal can be accessed and downloaded freely for everyone. The article published in this journal have been pass the rigorious peer review by the expert reviewer. This journal accept every article that contain the following, but not limited to, scope: Juvenil: Journal of Marine and Fisheries Sciences, is a scientific journal in the field of marine and fisheries science published electronically and periodically four times a year by the Department of Marine Affairs and Fisheries, Trunojoyo University, Madura. This journal is expected to function as a medium for the dissemination of quality scientific research results as well as scientific rebuttal (notes) in the marine and fisheries sector which can be accessed online and free of charge by the Indonesian community and the international community. The articles (articles) published in this journal are articles that have passed peer-review (partner bebestari). This journal accepts every article which contains, but is not limited to, the scope: 1. Ecology and biology of marine and fisheries 2. Marine and Aquaculture 3. Marine and Aquatic Conservation 4. Marine Water Pollution 5. Management of marine and aquatic resources 6. Marine and fishery processing technology
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 276 Documents
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Analisis Parameter Oseanografi Untuk Kesesuaian Lahan Keramba Jaring Apung (KJA) Ikan Kerapu Di Pulau Gili Ketapang, Probolinggo Dengan Menggunakan Data Penginderaan Jauh Terry Dwiarianto; Achmad Fachruddin Syah
Juvenil Vol 1, No 4 (2020)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v1i4.8934

Abstract

ABSTRAKPulau Gili Ketapang merupakan salah satu daerah pusat perikanan tangkap di Kabupaten Probolinggo. Daerah ini memiliki luas wilayah sekitar 68 hektar dengan jumlah penduduk 8.402 jiwa, dimana sebagian besar penduduknya berprofesi sebagai nelayan. Ikan kerapu merupakan komoditas perikanan yang diunggulkan di Indonesia dengan nilai ekonomis tinggi, memiliki harga mahal dan termasuk komoditas ekspor. Tujuan dari penelitian ini untuk mengetahui luasan laut yang cocok untuk digunakan atau dibangun sebuah keramba jaring apung untuk ikan kerapu di Pulau Gili Ketapang Probolinggo. Hasil penelitian menunjukkan luasan keramba jaring apung yang Sangat Sesuai (S1) 22%, Sesuai (S2) 52%, dan Tidak sesuai (N) 26%. Faktor yang menyebabkan adanya luasan KJA tergolong tidak sesuai maupun sesuai dengan habitat ikan kerapu macan dikarenakan kondisi luasan terumbu karang, kondisi oseanografi meliputi kecepatan arus, kedalaman perairan, suhu, salinitas, DO, kecerahan, pH,  dan ammoniak yang berbeda-beda di sepanjang perairan Gili Ketapang Probolinggo.Kata Kunci: KJA, Ikan Kerapu Macan, Parameter Oseanografi, Gili Ketapang. ABSTRACTGili Ketapang Island is one of the capture fisheries centers in Probolinggo Regency. This area has an area of around 68 hectares with a population of 8,402 people, where most of the population work as fishermen. Grouper fish is a superior fishery commodity in Indonesia with high economic value, has a high price and is an export commodity. The purpose of this study was to determine the area of the sea suitable for use or the construction of a floating net cage for groupers on the island of Gili Ketapang Probolinggo. The results showed that the area of floating net cages were very suitable (S1) 22%, suitable (S2) 52%, and not suitable (N) 26%. Factors that cause the KJA area is classified as not suitable or in accordance with tiger grouper habitat due to the extent of coral reefs, oceanographic conditions include current speed, water depth, temperature, salinity, DO, brightness, pH, and ammonia that vary along the waters Gili Ketapang Probolinggo.Keyword: KJA, Tiger Grouper, Oceanographic Parameters, Gili Ketapang Islands
STOK KARBON PADA JENIS MANGROVE YANG BERBEDA (Rhizophora stylosa, Avicennia marina dan Bruguierra gymnorrhiza) DI PERAIRAN TUBAN Choridina Kareninsekar; I Insafitri
Juvenil Vol 1, No 2 (2020)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v1i2.7576

Abstract

ABSTRACTMangrove is one of special plant in tropical forest which has ability to flourish in the river area or usually call estuari area. Mangrove has benefit as absorbing carbon dioxide, which is the process of photosynthesis change inorganic carbon (CO2)into organic carbon in the form of vegetation material. Tuban regency is one of regency which located in East Java which has coastline length around 65 km, and has distribution of mangrove forest 120,40 Ha. The aim of this research to know about amount of uptake absorption carbon dioxide (CO2) on type of mangrove which different in Tuban.The study was conducted on the coast of Tuban covering mangrove center in Mangrove Center Tuban, Jenu Kabupaten Tuban with use three research points and every point does three times repetitions. This research was conducted on November 2018. Technique of collecting data used decstructive method and calculation of data include water content value, ash content, carbon and uptake of carbon dioxide in basic laboratory, faculty of agriculture. Based on the results was obtained mangrove which have amount uptake highest carbon dioxide is mangrove with type Rhizophora stylosa with uptake value CO2 as much as 738,5 gram CO2/1000 gr tree, and highest uptake available in part of stem as much as 163,62 gram CO2/1000 gr tree.The value of uptake carbondioxide the highest number two there are the types of Bruguierra gymnorrhiza as much as 713,65 gram CO2/ 1000 gr tree with the highest absorption which found on the leaf as much as 160,18 gram CO2/1000gr tree and the lowest absorption that is Avicennia marina as much as 700,93 with the highest absorption also found on leaf as much as 147,33 gr CO2/1000 gr tree.Keywords: Stock, carbon, Mangrove and Tuban Coast.ABSTRAKMangrove merupakan suatu tumbuhan khas pada hutan tropis yang memiliki kemampuan tumbuh subur di daerah muara sungai atau disebut dengan daerah estuari. Mangrove memiliki manfaat sebagai penyerap karbondioksida, dimana proses fotosintesis mengubah karbon anorganik (CO2) menjadi karbon organik dalam bentuk bahan vegetasi. Kabupaten Tuban salah satu kabupaten yang berada di propinsi Jawa Timur dengan memiliki panjang garis pantai sekitar65 km, dan memiliki sebaran hutan mangrove 120,40 Ha. Penelitian bertujuan mengetahui jumlah serapan karbondioksida (CO2) pada jenis mangrove yang berbeda  diperairan Tuban.Penelitian dilakukan di pesisir Tuban mencakup kawasan pusat mangrove di Mangrove Center Tuban, Jenu Kabupaten Tuban dengan menggunakan tiga titik penelitian dan masing masing titik dilakukan tiga kali pengulangan. Penelitian dilakukan pada bulan November 2018. Metode pengambilan data menggunakan metode dekstruktif dan perhitungan data meliputi nilai kadar air, kadar abu ,karbon dan serapan karbondioksida di Laboratorium Dasar Fakultas Pertanian. Berdasarkan hasil yang diperoleh mangrove yang memiliki total serapan karbondioksida tertinggi adalah mangrove jenis Rhizophora stylosa dengan nilai serapan CO2  sebesar 738,5 gram CO2 /1000 gr pohon, yang penyerapan tertinggi terdapat pada bagian batang sebesar 163,62 gr CO2/1000 gr pohon. Nilai serapan karbondioksida tertinggi kedua terdapat pada jenis Bruguierra gymnorrhiza sebesar 713,65 gr CO2 /1000 gr pohon dengan penyerapan tertinggi terdapat pada bagian daun sebesar 160,18 gram CO2 /1000 gr pohon dan yang memiliki penyerapan CO2 terendah yaitu Avicennia marina sebesar 700,93 gr CO2/ 1000 gr pohon, dengan peneyerapan tertinggi juga terdapat pada daun sebsar 147,33 gr CO2 /1000 gr pohon.Kata Kunci :Stok, Karbon, Mangrove dan Perairan Tuban
ANALISA KADAR Mg, Ca dan Fe GARAM RICH MINERAL PADA TAMBAK GARAM PRISMA LAMONGAN Devi Herawati; Agus Romadhon
Juvenil Vol 1, No 3 (2020)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v1i3.8663

Abstract

ABSTRAKGaram merupakan komponen penting sekaligus peluang besar bagi Indonesia karena memiliki luas lautan yang lebih besar daripada daratan. Garam konsumsi memiliki rata-rata kadar NaCl 94,7%. Namun, beberapa orang dianjurkan mengonsumsi garam rendah natrium atau rich mineral seperti penderita hipertensi dan diabetes. Garam rich mineral merupakan garam dengan kandungan NaCl dan beberapa kandungan lainnya yang tidak dihilangkan seperti magnesium dan kalium. Garam rich mineral diproduksi dengan evaporasi tanpa kontaminan. Garam rich mineral dapat diproduksi dengan komposisi air laut dan (mulai muncul bunga garam, airnya saja yang digunakan).Kandungan mineral yang ada pada garam ini akan lebih banyak dibandingkan garam rakyat. Garam tidak hanya mengandung mineral, namun bisa juga mengandung logam. Beberapa logam dibutuhkan tubuh manusia dalam jumlah kecil seperti besi atau Fe Semakin banyak kandungan mineral dapat menurunkan kadar mineral yang ada. Garam dengan kadar NaCl terendah (80,145%) didapatkan dari sampel B yaitu 100% air tua, hal ini dapat disebabkan karena sampel air tua membuang bunga garam yang mengandung NaCl tinggi. Garam rich mineral ini tidak ditemukan logam besi (tidak terdeteksi).Kata Kunci :Garam, Garam Rakyat, Garam Rich Mineral, Kadar NaCl ABSTRACTSalt is an important component as well as a great opportunity for Indonesia because it has a greater sea area than the mainland. Salt consumption has an average level of 94.7% NaCl. However, some people are encouraged to consume low sodium or rich mineral salts such as hypertension and diabetes sufferers. Rich mineral salt is a salt containing NaCl and some other content that is not removed such as magnesium and potassium. Rich mineral salts are produced by evaporation without contaminants. Rich mineral salts can be produced with the composition of sea water and (starting to appear salt flowers, only the water is used). The mineral content in this salt will be more than the salt of the people. Salt not only contains minerals, but can also contain metals. Some metals are needed by the human body in small amounts such as iron or Fe. More and more mineral content can reduce the levels of existing minerals. Salt with the lowest NaCl (80,145%) content was obtained from sample B which is 100% old water, this could be due to the old water sample removing the salt flowers containing high NaCl. This rich mineral salt is not found in ferrous metals (not detected).Keywords:Salt, People's Salt, Rich Mineral Salt, NaCl Levels
PENILAIAN DAYA DUKUNG KAWASAN PANTAI SIRING KEMUNING BAGI PERUNTUKAN EKOWISATA PANTAI Muhamad Reza Pahlevi; Agus Romadhon
Juvenil Vol 1, No 3 (2020)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v1i3.8555

Abstract

ABSTRAK  Kabupaten Bangkalan merupakan salah satu kabupaten di pulau Madura yang memiliki potensi untuk berkembang dan maju dari berbagai sektor. Ekowisata merupakan salah satu sektor yang dapat menjadi andalan dari kabupaten Bangkalan. Ekowisata merupakan aktivitas pelestarian lingkungan serta ekologis yang dijadikan salah satu upaya baik pemerintah maupun swasta guna mempromosikan suatu daerah atau wilayah sebagai tujuan destinasi wisata yang akan memperluas lapangan pekerjaan serta meningkatkan perekonomian warga sekitar.Pantai Siring Kemuning merupakan salah satu kawasan yang berpotensi untuk dijadikan tempat pariwisata. Tujuan penelitian ini untuk mengetahui status mutu perairan, keterkaitan jasa ekosistem, kesesuaian dan penilaian daya dukung kawasan pantai Siring Kemuning. Metode yang digunakan yaitu dengan komparasi antara data yang di dapat dari hasil penelitian dengan baku mutu yang telah ditetapkan. Hasil dari penelitian ini menunjukkan bahwa pantai Siring Kemuning memiliki status mutu perairan yang baik. Status ketersediaan jasa ekosistem untuk pengembangan wisata masih mampu menyediakan sejumlah jasa ekosistem. Indeks Kesesuaian Wisata (IKW) Pantai Siring Kemuning memiliki kategori sangat sesuai dan sesuai (IKW 2,195 – 2,595. Pantai Siring Kemuning memiliki estimasi daya dukung kawasan pada stasiun 1 kondisi surut 548 orang/hari dan saat pasang 68 orang/hari, pada stasiun 2 sebesar 840 orang/hari saat surut dan 115 orang/hari saat pasang,dan stasiun 3 pada saat surut sebesar 903 orang/hari dan 113 orang/ hari saat pasang.Kata KunciABSTRACT  Bangkalan Regency is one of the districts on the island of Madura that has the potential to develop and advance from various sectors. Ecotourism is one sector that can be a mainstay of Bangkalan district. Ecotourism is an environmental and ecological preservation activity that is used as an effort by both the government and the private sector to promote an area or region as a tourist destination that will expand employment opportunities and improve the economy of local residents. Siring Kemuning Beach is one area that has the potential to become a tourist place. The purpose of this study was to determine the status of water quality, the relationship of ecosystem services, the suitability and assessment of the carrying capacity of the Siring Kemuning coastal area. The method used is the comparison between the data obtained from the results of research with established quality standards. The results of this study indicate that the Siring Kemuning beach has a status of good water quality. Status of the availability of ecosystem services for tourism development is still able to provide a number of ecosystem services. The Tourism Suitability Index (IKW) of Siring Kemuning Beach has a very appropriate and appropriate category (IKW 2.195 - 2.595). Siring Kemuning Beach has an estimated carrying capacity in station 1 at low tide 548 people / day and 68 people at tide, at station 2 at 840 people / day at low tide and 115 people / day at high tide, and station 3 at low tide at 903 people / day and 113 people / day at high tide. Keywords: Siring Kemuning Beach, beach ecotourism, tourism suitability index, and regional carrying capacity
PERBANDINGAN LAJU SEDIMENTASI DAN KARAKTERISTIK SEDIMEN DI MUARA SOCAH BANGKALAN DAN PORONG SIDOARJO Rista Rosyadewi; Zainul Hidayah
Juvenil Vol 1, No 1 (2020)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v1i1.6832

Abstract

ESTIMASI STOK KARBON PADA EKOSISTEM HUTAN MANGROVE DI DESA LEMBUNG PASESER, KECAMATAN SEPULUH, KABUPATEN BANGKALAN Ahmad Ibrahim; Firman Farid Muhsoni
Juvenil Vol 1, No 4 (2020)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v1i4.8947

Abstract

ABSTRAKMeningkatnya kandungan karbon dioksida (CO2) di udara akan menyebabkan kenaikan suhu bumi karena efek rumah kaca/pemanasan global. Penelitian ini bertujuan untuk mengetahui kerapatan vegetasi jenis tegakan mangrove, total biomassa atas permukaan dan bawah permukaan, mengetahui stok karbon atas permukaan, bawah permukaan dan stok karbon tanah dan mengetahui serapan CO2 atas permukaan, bawah permukaan dan stok karbon tanah pada kawasan hutan mangrove di Desa Lembung Paseser. Pengambilan data stok karbon mengunakan metode non-destruktif sampling yaitu tanpa merusak dengan menggunakan model persamaan allometrik. Penelitian ini dilakukan pada 3 stasiun dan setiap stasiun tardapat 6 plot. Hasil penelitian menunjukkan pada kawasan penelitian ditemukan 9 jenis mangrove yaitu Rhizophora mucronata, Rhizophora stylosa, Rhizophora apiculata, Sonneratia alba, Avicennia marina, Avicennia alba, Ceriop tagal, Ceriop decandra, Aegiceras c. Total kerapatan jenis mangrove pohon sebesar 2.900 ind/ha, pada anakan 206.400 ind/ha dan tingkat semai 3.480.000 ind/ha. Nilai rata-rata kandungan biomassa di atas permukaan sebesar 87,21 ton/ha, bawah permukaan (akar) 36,07 ton/ha. Total rata-rata stok karbon sebesar 231,69 ton/ha, terdiri dari: stok karbon di atas permukaan 40,75 ton/ha, bawah permukaan 16,95 ton/ha dan tanah 173,98 ton/ha. Total rata-rata serapan CO2 mangrove sebesar 849,51 ton/ha, yaitu di atas permukaan 149,44 ton/ha, bawah permukaan 62,15 ton/ha, dan tanah 637,93 ton/ha.Kata kunci: Mangrove, Biomassa, Stok Karbon, Serapan CO2. ABSTRACTThe increasing of carbon dioxide (CO2) in the air causes an increase in earth's temperature which occurs due to the greenhouse effect / global warming. Mangroves play an important role in preventing global warming. It is because mangrove forests are able to absorb and store carbon (C) in the form of biomass. This research aimed at determining mangrove stand density, surface layer and subsurface layer of total biomass, as well as to determine surface and subsurface carbon stock, and soil carbon stock. In addition, this research also tried to find CO2 uptake on surface layer, subsurface layer and soil carbon stock of mangrove forest area in Lembung Paseser village. The data of carbon stock was taken using a non-destructive sampling method, by using the allometric equation model, therefore there was no damage during the process. Meanwhile, the research was conducted in 3 stations and each station had 6 plots. The results showed that in the study area it was found 9 types of mangrove Rhizophora mucronata, Rhizophora stylosa, Rhizophora apiculata, Sonneratia alba, Avicennia marina, Avicennia alba, Ceriop tagal, Ceriop decandra, Aegiceras c. The total density of mangrove tree was 2.900 ind / ha, in saplings was 206.400 ind / ha and seedlings level was 3.480.000 ind / ha. The average value of biomass content in the surface level was 87,21 tons / ha, in the subsurface (roots) was 36,07 tons / ha. The average value of total carbon stock was 231,69 tons / ha, consisting of: carbon stocks above the surface of 40,75 tons / ha, the subsurface (roots) of 16,95 tons / ha and the soil layer of 173,98 tons / ha. The total average value of mangrove CO2 uptake was 849,51 tons / ha, consisting of: in the surface level of 149,44 tons / ha, the subsurface (roots) of 62,15 tons / ha, and the soil of 637,93 tons / ha.Key Words: Mangrove, Biomass, Carbon Stock, CO2 Uptake
STRUKTUR KOMUNITAS MAKROZOOBENTOS EPIFAUNA PADA EKOSISTEM LAMUN, MANGROVE DAN TERUMBU KARANG DI DESA LABUHAN KECAMATAN SEPULU BANGKALAN M Risda Elfami; Makhfud Efendy
Juvenil Vol 1, No 2 (2020)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v1i2.8446

Abstract

ABSTRACTMacrozoobenthos is basic aquatic organism that live on the surface (Epifauna) or inside (Infauna) the basic substrate that lives sessile in coastal ecosystem in the form of mangrove, seagrass and coral reef ecosystems. Macrozoobenthos can be used as a biological parameter in determining water quality.  The aim of the research is 1. Knowing the results of measurements of water quality parameters in each research location point 2. Knowing types of makrozoobenthos (epifauna) in seagrass, mangrove and coal reef ecosystems 3. Knowing the structure of the macrozoobenthos community. The data retrieval is done using purposive sampling method. Based on the results of observations, there were 15 types of 3 macrozoobenthos phylum, namely phylum of Mollusca, Echinodermata and Arthropoda. From the calculation of the community structure of macrozoobenthos in the mangrove ecosystem, the value of the diversity index (H') is low, the uniformity index (E) is moderate and the dominance index (C) is high. The seagrass ecosystem and coral reef have moderate (H') diversity values, high (E) uniformity index and low (C) dominance index. Keywords: Community Structure, Macrozoobenthos Epifauna, Seagrass, Mangroves, Coral Reefs.ABSTRAKMakrozoobentos merupakan organisme dasar perairan  yang hidup dipermukaan (Epifauna) atau didalam (Infauna) substrat dasar yang hidup sesil pada ekosistem pantai yang berupa ekosistem mangrove, lamun dan terumbu karang. Makrozoobentos dapat digunakan sebagai parameter biologis dalam menentukan kualitas perairan. Penelitian ini  bertujuan untuk 1. Mengetahui hasil pengukuran parameter kualitas perairan ditiap titik lokasi penelitian 2. Mengetahui jenis-jenis makrozoobentos (epifauna) pada ekosistem lamun, mangrove dan terumbu karang 3. Mengetahui struktur komunitas makrozoobentos. Pengambilan data dilakukan dengan menggunakan metode purposive Sampling. Berdasarkan hasil pengamatan didapatkan 15 jenis dari 3 filum makrozoobentos yaitu filum Mollusca, Echinodermata dan Arthropoda. Hasil perhitungan struktur komunitas  makrozoobentos pada ekosistem mangrove mendapatkan nilai indeks keanekaragaman (H’) yang rendah, indeks keseragaman (E) sedang dan indeks dominasi (C) tinggi. Ekosistem lamun dan terumbu karang memiliki nilai keanekaragaman (H’) sedang, indeks keseragaman (E) tinggi dan indeks dominasi (C) rendah.Kata Kunci: Struktur Komunitas, Makrozoobentos Epifauna, Lamun, Mangrove, Terumbu Karang.
HUBUNGAN PERSENTASE PENUTUPAN KARANG HIDUP TERHADAP KELIMPAHAN IKAN KARANG DI PERAIRAN PULAU NOKO SELAYAR KABUPATEN GERSIK S Sudarmaji; Makhfud Efendy
Juvenil Vol 2, No 1 (2021)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v2i1.9768

Abstract

ABSTRAKTerumbu karang merupakan suatu ekosistem laut yang paling komplek dan penting, karena menjadi sumber kehidupan bagi biota laut. Ikan karang merupakan salah satu kelompok hewan yang berasosiasi dengan terumbu  karang. pengambilan data dilakukan pada tanggal 28-30 November 2018 di Perairan Pulau Noko Selayar Kabupaten Gresik. Metode yang digunakan UVS (Underwater visual sensus) pada kelimpahan ikan, LIT (Line Intersept Transect) pada persen penutupan karang dan Analisis Regresi Linier Sederhana. Hasil penelitian menujukkan nilai rata-rata persen penutupan karang hidup stasiun I (59,29%), stasiun II (64.11%), stasiun III (71,66%) dan stasiun IV (64,01%). Nilai rata-rata kelimpahan ikan stasiun I (0.309), stasiun II (0.332) stasiun III (0.368) stasiun IV (0.302). Untuk hasil uji korelasi menujukkan nilai 0,234 hal tersebut menujukkan nilai lebih besar dari 0.05. Hal ini berarti bahwa tidak terdapatnya hubungan antara persentase tutupan karang dengan kelimpahan ikan karang di Pulau Noko Selayar Kabupaten Gresik. Hal tersebut diduga terdapat faktor lain seperti penangkapan ikan, maupun aktivitas para wisatawan.Kata Kunci: Pulau Noko Selayar, Karang dan Ikan Karang ABSTRACTCoral reefs are one of the most complex marine ecosystem and important, as a source for marine life. Reef fish is one group of animals associated with coral reefs. data collection was done on 28-30 November 2018 in the waters of Noko Selayar Island Gresik. The method used UVS (Underwater visual census) on the abundance of fish, LIT (intercept Line Transect) in coral cover and Simple Linear Regression Analysis. The results showed the average value per cent live coral cover in the station I (59.29%), the station II (64.11%), the third station (71.66%) and IV Station (64.01%). The average value of the abundance of the station I (0309), the station II (0332) Station III (0368) IV station (0302). Correlation test results showed the value of 0.234 it showed the value is greater than 0.05. This means that the absence of a relationship between the percentage of coral cover with an abundance of reef fish Noko Selayar Island Gresik.It is suspected there are other factors such as fishing, as well as the activity of the tourists.Keywords: Noko Selayar Island, Coral and Reef Fish
STRUKTUR KOMUNITAS TERIPANG (HOLUTHUROIDEA) PADA DAERAH PADANG LAMUN DENGAN KELAS PERSEN PENUTUPAN YANG BERBEDA DI PULAU SAPUDI KABUPATEN SUMENEP Adi Wira Akrama; I Insafitri
Juvenil Vol 1, No 2 (2020)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v1i2.7572

Abstract

ABSTRACTSapudi Island is the second widest island after Kangean Island which is located between the islands east of Madura. This study aims to: (1) Know the quality of the waters; (2) Knowing the percent closure of seagrasses; and (3) Knowing the structure of sea cucumber communities at different seagrass cover percentages at the research station. The method used for the study is the quadratic transect of 5x5 m2 for sea cucumber observation and 1 x 1 m2 for seagrass observation. The results of this study are: (1) The quality of the waters at the research station is in accordance with the quality standards throughout the life of sea cucumbers; (2) Percent of seagrass closure at station 1 found the 3rd and 4th seagrass closure class, while at station 2 found the 2nd and 3rd seagrass closure classes; and (3) the structure of sea cucumber community: the higher the seagrass closure class, the higher the density result, (H ') at station 1 is categorized as medium and at station 2 is classified as low category, (E) at station 1 and station 2 shows category height, (D) at station 1 and 2 indicate a low category.Keywords: Community Structure of Sea Cucumber, Percent Closure of Different Seagrasses, Sapudi IslandABSTRAKPulau Sapudi merupakan kepulauan yang terluas kedua setelah Pulau Kangean yang terletak di antara pulau-pulau sebelah timur Madura. Penelitian ini bertujuan untuk: (1) Mengetahui kualitas perairan; (2) Mengetahui persen penutupan lamun; dan (3) Mengetahui struktur komunitas teripang pada persen penutupan lamun yang berbeda pada stasiun penelitian. Metode yang di gunakan untuk penelitian yaitu transek kuadrat 5x5 m2untuk pengamatan teripang dan 1x1 m2 untuk pengamatan Lamun. Hasil dari penelitian ini yaitu: (1) Kualitas perairan pada stasiun penelitian sesuai dengan standar baku mutu suntuk kehidupan teripang; (2) Persen penutupan lamun pada stasiun 1 di temukan kelas penutupan lamun ke-3 dan 4, sedangkan pada stasiun 2 di temukan kelas penutupan lamun ke-2 dan 3; dan (3) struktur komunitas teripang: semakin tingggi kelas penutupan lamun, maka semakin tinggi juga hasil kepadatannya, (H’) pada stasiun 1 tergolong kategorinya sedang dan pada stasiun 2 tergolong kategori rendah, (E) pada stasiun 1 dan stasiun 2 menunjukkan kategori tinggi, (D) Pada stasiun 1 dan2 menunjukkan kategori rendah.Kata Kunci: Struktur Komunitas Teripang, Persen Penutupan Lamun Berbeda, Pulau Sapudi
HUBUNGAN PERSEN PENUTUPAN LAMUN DENGAN KEPADATAN ECHINODERMATA DI PULAU BAWEAN KABUPATEN GRESIK JAWA TIMUR Syaidah Aisyah; Agus Romadhon
Juvenil Vol 1, No 1 (2020)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v1i1.6930

Abstract

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