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Journal of Marine Research
Published by Universitas Diponegoro
ISSN : -     EISSN : 24077690     DOI : 10.14710/jmr.v9i4.28340
Core Subject : Science,
Earth & Planetary Sciences
The Journal of Tropical Fisheries Management is managed by the Department of Water Resource Management, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University aims to publish the results of basic, applied research in the scope of fisheries resources, fish stock studies, and population dynamics, fish biodiversity, fisheries technology, industrialization and fish trade, fisheries management, and fisheries development policies in the tropics, especially Indonesia. The scope of the area includes: Marine Fisheries Coastal Fisheries Inland Fisheries The focus and scope of this publication are expected to contribute thoughts for the government to strengthen the science of fisheries management
Arjuna Subject : -
Articles 687 Documents
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Pengaruh Kedalaman Dan Lokasi Sarang Semi Alami Terhadap Masa Inkubasi Dan Daya Tetas Telur Penyu Hijau (Chelonia mydas) Di Pantai Paloh, Kabupaten Sambas, Provinsi Kalimantan Barat Akbarinissa, Rr. Dyah Artati; Taufiq-Spj, Nur; Hartati, Retno
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (664.581 KB) | DOI: 10.14710/jmr.v7i1.25888

Abstract

ABSTRAK : Kedalaman sarang berpengaruh terhadap keberhasilan penetasan telur penyu yang berkaitan juga dengan suhu di dalam sarang, lama masa inkubasi dan daya tetas telur nantinya. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh kedalaman dan lokasi sarang semi alami terhadap masa inkubasi dan daya tetas. Metode penelitian yang digunakan adalah metode eksperimental dengan dua perlakuan dan tiga kali pengulangan. Perlakuan yang digunakan adalah variasi kedalaman (40, 60 dan 80 cm) dan perbedaan lokasi sarang semi alami yaitu sarang semi alami terbuka, bawah semak dan bawah pohon. Parameter yang diambil antara lain suhu, kelembaban, komposisi dan ukuran butir substrat. Sedangkan analisa data yang dilakukan adalah analisa data secara deskriptif. Hasil penelitian menunjukkan rata-rata persentase tertinggi terdapat pada sarang semi alami bawah pohon sebesar 91,6%, kemudian sarang semi alami bawah semak 90,1% dan sarang semi alami terbuka 50,9%. Masa inkubasi paling singkat terdapat pada sarang semi alami terbuka kedalaman 60 cm yaitu 45 hari, dan paling lama terdapat pada sarang semi alami bawah semak kedalaman 80 cm yaitu 54 hari. Kisaran suhu keseluruhan antara 29,5oC – 32,7oC, sedangkan tingkat kelembaban sarang semi alami berkisar antara 69,9% - 91,8%. ABSTRACT : The effected depth of the nest on hatching success of turtle is also related to the temperature in the nest, the time of incubation. The purpose of this study was to determine the effect of depth and location of semi-natural nest Green Turtle (Chelonia mydas) incubation period and hatching success in Paloh Beach, Sambas, West Kalimantan. The method used is the experimental method. The study was conducted with two treatments and three repications. The treatment used is a variation of depths (40, 60 and 80 cm) and the difference in semi-natural nesting sites are open semi-natural nest, under shrubbery and under trees. The parameters taken i.e temperature, humidity, composition and grain size of the substrate. The results shows that highest percentage found in semi-natural nests under the trees (91.6%), then the semi-natural nest under a bush (90.1%) and semi-natural nest open (50.9%). Shortest incubation period contained in semi-natural nest open depth of 60 cm is 45 days, and the longest contained in a semi-natural nests under bushes with depth of 80 cm is 54 days. Overall temperature range between 29,5oC - 32,7oC, while the semi-natural nest moisture levels ranged between 69.9% - 91.8%.
SEBARAN SEDIMEN DAN KANDUNGAN BAHAN ORGANIK PADA SEDIMEN DASAR PERAIRAN PANTAI SLAMARAN PEKALONGAN Arisa, Raden Roro Putri; Kushartono, Edi Wibowo; Atmodjo, Warsito
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (374.175 KB) | DOI: 10.14710/jmr.v3i3.6006

Abstract

Penelitian ini bertujuanuntuk mengkaji sebaran sedimen, total kandungan bahan organik sedimen dan hubungan nilai sortasi sedimen dengan total kandungan bahan organik pada sedimen dasar perairan pantai Slamaran Pekalongan. Pengambilan sampel dilakukan  pada bulan Mei 2012 dengan menggunakan grab sampler pada 20 stasiun. Sampel sedimen yang diperoleh kemudian dianalisis untuk penentuan besar ukuran butir sedimen dan dilakukan perhitungan statistik sedimen untuk mengetahui sebaran sedimen. Selain itu juga dilakukan analisis total kandungan bahan organik sedimen serta analisis hubungan nilai sortasi sedimen dengan total kandungan bahan organik sedimen. Jenis sedimen dasar yang dominan di perairan pantai Slamaran adalah jenis sedimen pasir lanauan. Dari perhitungan statistik sedimen didapatkan nilai mean sedimen antara 0,093 sampai dengan 0,625, nilai sortasi sedimen antara -0,0951 sampai dengan -0,6243, nilai skewness antara -0,8379 sampai dengan 0,0777 dan nilai kurtosis antara 0,6723 sampai dengan 2,5371. Sedimen dasar pantai Slamaran didominasi oleh kandungan bahan organik berkriteria sedang, yaitu antara 7% - 17%. Dengan kandungan bahan organik terendah sebesar 5,60% dan kandungan bahan organik tertinggi sebesar 20,84%. Dan adanya hubungan antara nilai sortasi sedimen dengan total kandungan bahan organik pada sedimen dasar perairan pantai Slamaran Pekalongan
Struktur Komunitas Moluska Bentik Pada Ekosistem Lamun Asli Dan Transplantasi Di Perairan Pulau Panjang, Jepara Khozin, Khozin; Nuraini, Ria Azizah Tri; Riniatsih, Ita
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (540.503 KB) | DOI: 10.14710/jmr.v7i4.25924

Abstract

ABSTRAK : Penelitian ini bertujuan untuk mengetahui struktur komunitas moluska bentik dan  di lamun asli dan transplantasi di  perairan pulau Panjang kabupaten Jepara. Penelitian ini dilaksanakan pada bulan Januari – Maret 2016. Sampel moluska bentik diambil dengan cara mengambil sedimen terlebih dahulu dan kemudian disaring menggunakan saringan yang memiliki diameter 0,5 mm. Hasil penelitian yang telah dilakukan ditemukan sebanyak 14 spesies. Nilai kelimpahan pada lamun asli berkisar antara 4.00 – 5.56 ind/dm3 dan nilai kelimpahan pada lamun transplantasi antara 2.00 – 2.67 ind/dm3. Nilai indeks keanekaragaman pada lamun asli berkisar antara 0,50 – 0,52, sedangkan pada lamun transplantasi berkisar antara 0,47 – 0,52. Nilai indeks keseragaman pada lamun asli (E = 0,32 -0,33) dan lamun transplantasi (E = 0,30 – 0,33) yang masuk dalam kategori rendah (E > 0,6) di kedua padang lamun tersebut. Nilai indeks dominasi di lamun asli (C = 0,14 – 0,31) dan lamun transplantasi (C = 0,14 – 0,28) menunjukan bahwa tidak ada  jenis moluska bentik yang mendominasi. ABSTRACT : The aims of this research to understand the community structure of bentic mollusc community which lives in Panjang island, Jepara. The research was conduted in January – March 2016. Samples of bentic mollusc were collected  by taking sediment first, then filtered using a sieve (the mesh size of sieve is 0,5 mm). The result of this reseach found as many as 14 species. The value of abundance in nature seagrass ranging from 4.00to 5.56 ind/dm3 and the value of abundance in transplantation seagrass ranging from 2.00 to 2.67 ind/dm3. The value of diversity index in the nature seagrass ranging from 0.50to0.52, while in the transplantation seagrass ranging from 0.47 to 0.52. The value of evenness index in nature seagrass (E = 0.32to 0.33) and transplantation seagrass (E = 0.30 to 0.33) were included in the lower category (E> 0.6) in the second zone. The value of domination index in the nature seagrass (C = 0.14 to 0.31) and transplantation seagrass (C = 0.13 to 0.17) indicates that there are not bentic mollusc species dominates.
KAJIAN HUBUNGAN FOSFAT AIR DAN FOSFAT SEDIMEN TERHADAP PERTUMBUHAN LAMUN Thalassia hemprichii DI PERAIRAN TELUK AWUR DAN PULAU PANJANG JEPARA Setiawan, Dedi; Riniatsih, Ita; Yudiati, Ervia
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (153.386 KB) | DOI: 10.14710/jmr.v2i2.2349

Abstract

Seagrass growth is limited by the supply of nutrients such as nitrogen and phosphate particulates that serve as energy for photosynthesis. The magnitude of the role of phosphate in the metabolism and growth of seagrass Thalassia hemprichii important to serve as a study to determine the relationship of nutrients to the growing rate of seagrass in Teluk Awur and Pulau Panjang Jepara. The purpose of this study was to determine the concentration of phosphate in the water and sediment in the waters of the Teluk Awur and Pulau Panjang and its relation to seagrass leaf growth rate of T. hemprichii. The study was conducted in April - July 2012 includes literature studies, site surveys, field data collection and analysis of samples. Analysis of the relationship phosphate concentration on the rate of growth of seagrass T. hemprichii using bivariate correlation analysis. The results showed that the average growth rate - the average seagrass highest type T. hemprichii found in Teluk Awur on 8 week (0.81 cm/day). Meanwhile, the lowest growth rate found in Teluk Awur at week 2 (0.14 cm/day). The content of phosphate concentration of water in the Teluk Awur ranged from 0.009 to 0.028 mg/L and in Pulau Panjang ranged from 0.012 to 0.025 mg/L. The concentration of phosphate sediments in the Teluk Awur ranged from 20.870 to 23.250 mg/kg and Pulau Panjang 25.650 to 27.190 mg/kg. Relations water phosphate concentration and phosphate sediments to seagrass leaf growth in Teluk Awur are not considered closely related ,instead phosphate water to the growing rate of seagrass in Pulau Panjang is low and phosphate sediments to seagrass growth as very closely.
Aktivitas Antioksidan Ekstrak Rumput Laut Turbinaria Decurrens Bory De Saint-Vincent Dari Pantai Krakal, Gunung Kidul, Yogyakarta Islami, Faishal; Ridlo, Ali; Pramesti, Rini
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (397.046 KB) | DOI: 10.14710/jmr.v3i4.11422

Abstract

Turbinaria decurrens merupakan salah satu rumput laut cokelat yang belum banyak dimanfaatkan. Tujuan penelitian ini untuk mengetahui potensi antioksidan T. decurrens dari ekstrak n-heksan (non-polar) dan metanol (polar), menentukan kadar total fenol dan biopigmen (klorofil a, klorofil b, dan karotenoid).Materi yang digunakan adalah T. decurrens yang diambil dari Pantai Krakal, Gunung Kidul, Yogyakarta. Metode penelitian yang digunakan adalah metode deskriptif eksploratif. T. decurrensdimaserasi dengan pelarut metanol, diuapkan dengan rotary evaporator dan dipartisi dengan pelarut n-heksan menggunakan corong pemisah. Aktivitas antioksidan ditentukan dengan nilai IC50.Penentuan nilai IC50 ekstrak kasar metanol dan n-heksan T. decurrens dilakukan dengan metode penangkapan radikal DPPH (1,1-diphenyl-2-picrylhidrazyl) pada λ=517 nm. Kadar total fenol diuji dengan menggunakan metode Folin-Ciocalteu dengan asam galat sebagai standar pada λ=725 nm, kadar klorofil diukur pada λ=663 nm dan λ=646 nm dan karotenoid pada λ=470 nm.Data dianalisis menggunakan analisa ragam Independent Samples Test.Hasil penelitian menunjukkan aktivitas antioksidan ekstrak metanol dengan nilai IC50 sebesar 670,603 ppm lebih tinggi dibandingkan ekstrak n-heksan (1201,853 ppm). Kadar total fenolik (61,127 mgGAE/g ekstrak), klorofil a (1,518 mg/g), dan klorofil b (1,558 mg/g) ekstrak n-heksan lebih tinggi dibandingkan dengan ekstrak metanol. Kadar total karotenoid ekstrak T. decurrens hanya ditemukan dalam ekstrak metanol (0,459µmol/g). Hasil ini menunjukkan total karotenoid pada ekstrak metanolT. decurrens berkaitan erat dengan aktivitas antioksidan yang tergolong ke dalam antioksidan lemah
STUDI POTENSI PULAU PISANG BAGIAN UTARA UNTUK PERENCANAAN KAWASAN WISATA PANTAI, KABUPATEN LAMPUNG BARAT, PROVINSI LAMPUNG Sitompul, Putra Charisma Chryssa; Subardjo, Petrus; Pratikto, Ibnu
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (876.594 KB) | DOI: 10.14710/jmr.v2i3.3142

Abstract

Faithful Cape Coast is one of Lampung destinations featured attraction and a tourist attraction in West Lampung regency which has considerable potential as a marine tourism area. This study aims to identify and assess physical potential of Pisang Island as coastal tourism area. The research was conducted in July-August 2011, this is because the month is a transitional season, when the season started, many people were coming to Pisang Island. The method used in this study is descriptive exploratory method. The analysis used in this study is the analysis of the suitability of tourism, namely by comparing the characteristics and quality of land to the land use requirements for specific tourism activities. The results of the study showed that the physical condition of the waters of North Pisang Island potential as marine tourism area, with some activity that is Coastal walk, Sun Bathing, and fishing. Based on the IKW for Coastal Walk into the category of class S1 (highly suitable) with IKW value by 93%, whereas for Sun Bathing in the category S1 (highly suitable) with IKW value by 94% and for Fishing in category S2 (Quite suitable) with IKW value by 70%.
Ekologi Fitoplankton : Ditinjau dari Aspek Komposisi, Kelimpahan, Distribusi, Struktur Komunitas dan Indeks Saprobitas Di Perairan Morosari, Demak Putri, Cinthya Ruhanto; Djunaedi, Ali; Subagyo, Subagyo
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1174.715 KB) | DOI: 10.14710/jmr.v8i2.25103

Abstract

Perairan Morosari yang terletak di Kecamatan Sayung, Kabupaten Demak merupakan tempat terjadinya percampuran antara air darat dan air laut. Disekitar perairan Morosari terdapat pemukiman penduduk, industri wisata dan aktifitas nelayan. Aktivitas masyarakat dan wisatawan tersebut akan menimbulkan perubahan yang mengarah pada peningkatan pencemaran yang berimbas kepada keberadaan fitoplankton. Tujuan dari penelitian ini adalah untuk mengetahui komposisi, kelimpahan, distribusi, struktur komunitas dan indeks saprobitas fitoplankton di perairan Morosari. Metode yang digunakan dalam penelitian ini adalah deskriptif eksploratif dan penentuan lokasi menggunakan metode purposive sampling. Penelitian ini terbagi atas 3 sub-area di 3 area yang berbeda. Pengambilan sampel zooplankton dengan cara aktif dengan menarik planktonet secara horizontal. Hasil penelitian diperoleh 24 genera fitoplankton dari 3 kelas di perairan Morosari. Kelimpahan fitoplankton bervariasi antara 12.556 – 19.108 individu/m3. Distribusi fitoplankton tidak merata dan cenderung mengikuti arah arus. Indeks keanekaragaman menunjukkan nilai 1,70–2,25 yang termasuk dalam kategori sedang. Indeks keseragaman fitoplankton menunjukkan nilai 0,71–0,81 yang termasuk dalam kategori Tinggi. Indeks dominansi di perairan Morosari berkisar antara 0,18–0,29 dan termasuk ke dalam kriteria tidak ada jenis yang mendominasi. Indeks Saprobik menunjukkan nilai 0,6–1,3 yang termasuk dalam kategori β–Mesosaprobik. Morosari waters located in District Sayung, Demak Regency is waters area there is a mixture of land and sea water. Surrounding the Morosari waters there are residential, tourist industry and fishing activities. These activities will be affected changes that lead to increased pollution that affects the presence of phytoplankton. The purpose of this research was to know the composition, abundance, distribution, community structure and saprobity index of phytoplankton in Morosari waters, Sayung Subdistrict, Demak District. This research used deskriptive eksplorative method and determination location used purposive sampling method. The results obtained 24 genera phytoplankton of 3 classes. The abundance of phytoplankton ranges from 12.556-19.108 individu/m3. The distribution of phytoplankton is uneven and tends to follow the current direction. The phytoplankton Diversity Index indicated the values of 1,70–2,25 which were in the medium category. The phytoplankton evenness index indicated a value of 0,71 to 0,81 belonged to the High category. The dominance index in Morosari waters indicated no particular genus dominating with the values of 0,18-0,29. The Saprobik Index indicated the values of 0,6–1,3 which were into the category β –Mesosaprobic.
Tinjauan Parameter Fisik Pantai Mangkang Kulon Untuk Kesesuaian Pariwisata Pantai Di Kota Semarang Yustishar, Maulana; Pratikto, Ibnu; Koesoemadji, Koesoemadji
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.623 KB) | DOI: 10.14710/jmr.v1i2.2012

Abstract

Mangkang Kulon Coast has the potential to be developed to provide benefits to community. This research aimed to overview physic parameter for coastal tourism of Mangkang Kulon Coast, Mangkang Village, Tugu Distric, Semarang Regency. There are 2 beach of sampling, primary sampling on May-June 2009 and field sampling on February-March 2010. Field sampling includes measurements physic parameters and supported by secondary data. This research used descriptive and purposive sampling method. The results showed that the Coast Mangkang Kulon have the potential and suitability as a coastal tourism. The results of measurements in station I, II and III almost similar, it shows of water depth is ± 2.5 meters (< 5 meter maximum value of depth), slope coast about 3-6° so very easy to do tourism activity and oceanography aspect including waves, tides and currents available and support the marine tourism. Although there are several unfavorable parameters such as such turbidity, narrow coast, varies sands size and sand color. However, need strategy to show the better display its advantages such as convenience factor, supporting facilities to cover the shortage. In addition, the presence of mangrove can be an interesting icon visitor's attention so that the government is expected to wisely choose the concept of tourism development on the coast is the most appropriate.
Akumulasi Logam Berat Timbal (Pb) dan Pengaruhnya Terhadap Histologi Akar Mangrove Avicennia marina (Forssk). Vierh. di Perairan Mangunharjo Semarang Jupriyati, Ruri; Soenardjo, Nirwani; Suryono, Chrisna Adhi
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (523.813 KB) | DOI: 10.14710/jmr.v3i1.4598

Abstract

Mangunharjo areas water is an area of coastal waters and the sea which close to the settlement industry and community activities. Where feared result of industrial waste were dumped around it that cause pollution. One form of pollution is the waste produced in the form of lead (Pb) heavy metals is a heavy metal element that can not be broken down by natural processes. The existence of Pb in nature have an impact on coastal vegetation is mangrove. Mangroves are coastal ecosystems which have an important role in estuarine areas. Other mangrove function is to absorb organic and non-organic materials. The purpose of this research was to study the accumulation of lead (Pb) heavy metals in Avicennia marina mangrove roots and influences the type of heavy metal accumulation of lead (Pb) to root tissue in Avicennia marina waters Mangunharjo. This research was conducted with descriptive analytic method. The results showed the amount of heavy metals on the roots of Avicennia marina Pb higher than the Pb content of heavy metals in sediment and water indicating that these plants are able to accumulate heavy metals in the roots to absorb these elements in sediments and water. Observations cell histology showed no change in root tissues of Avicennia marina.
Hubungan Pengendapan Suspended Sedimen dengan Kerapatan Mangrove pada Perairan Romokalisari, Surabaya Arifin, Muhammad Yusuf; Soenardjo, Nirwani; Suryono, Chrisna Adhi
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (652.629 KB) | DOI: 10.14710/jmr.v8i4.24850

Abstract

ABSTRAK: Romokalisari merupakan bagian hilir dari sungai Lamong, dimana daerah tersebut merupakan daerah pasang surut dan rawan terhadap banjir. Romokalisari banyak ditumbuhi oleh mangrove yang sangat rapat. Tujuan penelitian ini adalah untuk mengetahui pengaruh kerapatan mangrove terhadap laju pengendapan suspended sedimen pada perairan Romokalisari, Surabaya. Sampel sedimen diambil dari 8 stasiun yang terbagi dalam wilayah muara, mangrove dan laut, dimana masing-masing stasiun diulang 4 kali dengan periode setiap minggu. Analisis sampel sedimen menggunakan metode hydrometer dan analisis data menggunakan One Way Anova. Hasil penelitian menunjukkan bahwa ada perbedaan laju pengendapan suspended sedimen antara muara, mangrove dan laut, dengan nilai p = 0,046 < 0,05. Laju pengendapan suspended tertinggi terdapat pada stasiun 1 di wilayah muara dengan nilai sebesar 86,97 g/cm2/minggu dan laju pengendapan suspended terendah terdapat pada stasiun 2 di wilayah mangrove dengan nilai sebesar14,36g/cm2/minggu. ABSTRACT: Romokalisari is downstream part of the Lamong River, where the area is tidal and prone to flooding. Romokalisari is overgrown by very dense mangroves. The aim of this study was to determine the effect of mangrove density on suspended sediment rate in Romokalisari, Surabaya. Sediment sample were taken from 8 statios divided into estuaries, mangroves, and sea areas, each station was repeated 4 times with periods each week. Analysis of sediment samples using a hydrometer and data analysis using One Way Anova. The results showed that there were differences in suspended sedimentation rates between estuaries, mangroves and seas, with a value of p = 0,046 < 0,05. The highest suspended deposition rate is at station 1 in the estuary area with a value of 86.97 g/cm2/week and the lowest suspended deposition rate is at station 2 in the mangrove area with a value of 14.36 g/cm2/week.

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