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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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Komposisi dan Kelimpahan Makrozoobenthos Krustasea di Kawasan Vegetasi Mangrove Kel. Tugurejo, Kec. Tugu, Kota Semarang Ulum, Muchammad Miftahul; Widianingsih, Widianingsih; 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 (113.251 KB) | DOI: 10.14710/jmr.v1i2.2043

Abstract

Mangrove forests are unique ecosystems, due to a combination of habitat caused by land and sea. Mangrove ecosystem is also the life of various animal species, including crustaceans benthos plays an important role in the ecosystem. The change of land use for a wide range of human interests are expected to affect the abundance krustaseayang conditions contained in the region. The study was conducted in September 2011 - March 2012. This research is descriptive. Sampling was done by two methods, ie. qualitative (in 5x5 meter2) and quantitative (1x1 meter2). The results showed that 22 species were found, ie. 14 species (belong to 5 family) of Infra Order Brachyura, 4 species (belong to 4 family) of Infra Order Macrura, 3 species Isopoda and one species Copepod. Diversity index revealed that all stations had medium category Uniformity index showed that station A and D had high category, station B and C had stations is low category. There were no dominance at Stations A and D, but Station B and C were dominated by Cerapus sp. Most of crustaceans was clumped distributed. High community similarity index values showed by Station A-B, A-C, B-C but low at Stations A-D, B-D, C-D). Generally, among Brachyuran, male greater number than females, and 23.07% gravid females were found.
Struktur Dan Komposisi Vegetasi Mangrove Alami Di Kawasan Ekowisata Taman Hutan Raya Ngurah Rai, Bali Hermawan, Andreas Ricky; Pribadi, Rudhi; Ario, Raden
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (315.507 KB) | DOI: 10.14710/jmr.v3i4.8361

Abstract

Taman Hutan Raya Ngurah Rai merupakan kawasan hutan mangrove yang berada di Bali dan termasuk kawasan rehabilitasi namun memiliki vegetasi alami yang cukup luas. Tujuan dari penelitian ini adalah mengkaji komposisi dan struktur vegetasi mangrove alami di Kawasan Ekowisata Taman Hutan Raya Ngurah Rai, Bali.Penelitian dilakukan di 5 stasiun dengan metode purposive sampling dan setiap transek dibuat plot sampling. Setiap inividu pohon (plot 10 x 10 m) dan sapling (plot 5 x 5 m) diidentifikasi serta diukur diameter serta tinggi, seedling (plot 1 x 1 m) dihitung jumlah spesies serta persentase penutupannya.Hasil penelitian di Kawasan Ekowisata Taman Hutan Raya Ngurah Rai ditemukan 6 spesies berada didalam plot dimana 5 spesies komponen mayor dan 1 spesies komponen minor. Rhizophora mucronata merupakan spesies yang mendominasi lokasi penelitian kategori pohon, sapling dan seedling. Indeks Nilai Penting (INP) kategori pohon berkisar 112% - 152 %. Indeks Keanekaragaman (H’) dan Indeks Keseragaman (J’) pada lokasi penelitian termasuk dalam kategori rendah.
Pengaruh Rendahnya Intensitas Cahaya Terhadap Caulerpa racemosa (Forsskål) 1873 (Ulvophyceae:Caulerpaceae) Sitorus, Elfonso Robby; Santosa, Gunawan Widi; 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 (400.086 KB) | DOI: 10.14710/jmr.v9i1.25376

Abstract

ABSTRAK: Caulerpa racemosa merupakan spesies rumput laut hijau (Chlorophyta) yang hidup di daerah pasang surut maupun daerah yang bebas dari pasang surut. Permintaan pasar yang setiap tahun meningkat, sehingga dilakukan budidaya. Penelitian ini bertujuan untuk mengetahui pengaruh intensitas cahaya yang berbeda pada pertumbuhan C. racemosa. Penelitian ini menggunakan metode eksperimental laboratoris dan rancangan percobaan yang dipakai adalah Rancanagan Acak Lengkap (RAL) yang terdiri dari 3 perlakuan dan 2 ulangan. Perlakuan pada penelitian ini dengan intensitas cahaya pada A= ± 1000 lux; B= ± 500 lux; C= ± 300 lux. Pencapaian berat basah rata-rata sebagai berikut: A= ± 0,84 gram ; B= ± 1,06 gram ; C= ± 1,13 gram. Laju Pertumbuhan Spesifik (SGR) C. racemosa adalah: A= 1,29 ± 0,04% per hari ; B= 1,12 ± 0,06% per hari ; C= 0,4 ± 0,09% per hari. Hasil penelitian menunjukkan perlakuan intensitas cahaya yang berbeda berpengaruh sangat nyata terhadap berat dan laju pertumbuhan spesifik C. racemosa (p<0,01). ABSTRACT: Caulerpa racemosa is a species of green seaweed (Chlorophyta) that live in tidal areas and areas free from tides. The market demand of C. racemosa continues to increase, it is necessary to conduct cultivation for its production. The purpose of this research was to determine the effect of different light intensities on the growth of C. racemosa. This research used an experimental laboratory method and the experimental design used was a Completely Randomized Design (CRD) consisting of 3 treatments and 2 replications. The treatment in the research was by measuring the light intensity at A = ± 1000 lux; B = ± 500 lux; C = ± 300 lux. The results showed that the average wet weight gained was : A = ± 0.84 gram ; B = ± 1.06 gram ; C = ± 1.13 grams. Specific growth rates of C. racemosa were: A = 1.29 ± 0.04% per day ; B = 1.12 ± 0.06% per day ; C = 0.4 ± 0.09% per day. The results of this study indicated that the treatment of different light intensities significantly affected the specific weight and grow rate of C. racemosa (p < 0.01).
STRUKTUR KOMUNITAS MANGROVE DI PULAU JEMAJA, KABUPATEN KEPULAUAN ANAMBAS, DAN PULAU LIRAN, KABUPATEN MALUKU BARAT DAYA Fuady, Irfan; Pribadi, Rudhi; Nirwani, Nirwani
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.631 KB) | DOI: 10.14710/jmr.v2i2.2470

Abstract

Mangrove Vegetation occupy the area between land and sea that have environmental conditions differ from one another. The purpose of this study is to know about the structure and composition of mangrove vegetation in Jemaja Island, Kepulauan Anambas Regency, Riau Islands Province, and Liran Island, South-East Moluccas Regency, Moluccas Province. Vegetation data taking based on purposive sampling method and every transect made sampling plot. Each tree (plot 10 m x 10 m) and sapling (subplot 5 m x 5 m) identified and measured on diameter at breast height (± 1.3 m). Seedling calculated the amount of each species and the percentage of cover on subplot 1 m x 1 m. The result of research in Jemaja Island was found 17 mangrove species. Tree mangrove in Jemaja Island have the range of density 375 ind/ha – 950 ind/ha were dominated by Rhizophora apiculata (Importance Index 89,73% - 123,42%). The result of research in Liran Island was found 19 mangrove species. Tree mangrove in Liran Island have the range of density 500 ind/ha – 566 ind/ha were dominated by Sonneratia alba with range of Importance Index 135,90% - 160,32%. The Index of Diversity (H’) and Eveness (J’) of mangrove vegetation in Jemaja Island, District of Anambas Islands and Liran Island, District of South-East Moluccas, were in low category.
Pengaruh Konsentrasi Asam Klorida (hcl) Terhadap Mutu Alginat Rumput Laut Coklat Sargassum sp. dari Perairan Teluk Awur Kab. Jepara Dan Poktunggal Kab. Gunungkidul Rifandi, Raditya Ahmad; Santosa, Gunawan Widi; Ridlo, Ali
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (234.6 KB) | DOI: 10.14710/jmr.v3i4.11430

Abstract

Rumput laut merupakan sumber daya hayati laut yang potensial digunakan dalam industri pangan dan non pangan, salah satu jenisnya ialah Sargassum sp. yang ditemukan melimpah hampir di seluruh perairan Indonesia dan telah dimanfaatkan berupa alginat yang dalam industri digunakan sebagai pengental, pensuspensi, penstabil, pembentuk film, pembentuk gel, dan bahan pengemulsi. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi HCl terhadap kualitas Natrium alginat rumput laut coklat Sargassum sp. yang diambil dari Perairan Teluk Awur, Jepara dan perairan Poktunggal, Gunungkidul yang meliputi rendemen, viskositas, kadar air dan kadar abu. Metode penelitian yang digunakan adalah metode eksperimental laboratorium dengan Rancangan Acak Lengkap (RAL). Sampel diekstraksi dengan perlakuan perbedaan konsentrasi HCl 3%, 5%, 7% dan 9% saat pembentukan asam alginat masing-masing dengan 3 ulangan. Hubungan antara konsentrasi HCl dan kualitas natrium alginat menunjukan model regresi linier positif untuk rendemen natrium alginat, model regresi polinomial positif untuk viskositas, regresi linier positif dan negatif pada kadar air, lalu regresi polinomial negatif pada kadar abu. Hasil penelitian menunjukkan rendemen natrium alginat tertinggi dihasilkan pada konsentrasi HCl 9% yaitu sebesar 15,41 ± 2,17% untuk perairan Teluk Awur dan 14,44 ± 2,94% untuk perairan Poktunggal. Viskositas tertinggi dihasilkan pada konsentrasi HCl 5% yaitu sebesar 10,33 ± 1,52 cPs untuk perairan Teluk Awur dan 12,65 ± 1,48 cPs untuk perairan Poktunggal
Studi Kesesuaian Perairan Pulau Pisang Bagian Timur Untuk Perencanaan Wisata Bahari Selancar Air, Olahraga Air Banana Boat dan Jet Ski, Kabupaten Lampung Barat, Provinsi Lampung Pradana, Andika Nugraha; Hariyadi, Hariyadi; Subardjo, Petrus
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3039.802 KB) | DOI: 10.14710/jmr.v2i3.3150

Abstract

Banana Island is one destination that superior Lampung attractions and is a tourist attraction in West Lampung regency which has considerable potential as one of the coastal resorts.This study aims to identify and assess physical potential of Cape Coast Faithful as marine tourism area.This study aims to identify and assess the potential physical Banana Island as a marine tourism area.This study was conducted in July-August 2011, this is because the month is a transition season, which allegedly started the season many tourists flock to Banana Island for a tour. The method used in this research is descriptive exploratory method.The analysis used in this study is an analysis of the suitability of travel, ie by comparing the characteristics and quality of the waters of the requirements for the use of waters of certain tourist activities. Results of the study showed that the physical conditions potentially Banana Island waters as marine tourism area, with several activities, namely water surfing (surfing), and water sports (Water Sports) ie banana boat and jet ski. Based on the value IKW for surfing activities (Surfing) in the category of S1-class (very appropriate) with IKW value by 86%, while for the water sports activities (Water Sport) ie banana boat and jet ski into the category of S1-class (very appropriate ) with IKW value of 81%.
Tutupan Terumbu Karang di Pulau Lirang Kabupaten Maluku Barat Daya Nusaputro, Kurnia Adi; Redjeki, Sri; Susilo, Endang Sri
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (559.11 KB) | DOI: 10.14710/jmr.v8i3.25267

Abstract

Penelitian mengenai persentase tutupan substrat pada perairan terumbu karang ini dilakukan di Pulau Lirang Kabupaten Maluku Barat Daya. Penelitian yang dilakukan di perairan Pulau Lirang bertujuan untuk mengetahui persentase tutupan substrat di perairan tersebut. Pengumpulan data dilakukan bulan April 2016 pada enam lokasi dengan transek sepanjang 100 meter. Data dihimpun dengan menggunakan metode Point Intersept Transect (PIT) menggunakan peralatan SCUBA. Hasil penelitian menunjukkan rerata tutupan karang hidup di Pulau Lirang, Maluku Barat Daya adalah 33,75%, dengan tutupan tertinggi pada stasiun VI (54%). Kematian karang yang mencapai 48% di stasiun V diduga disebabkan oleh persaingan dengan soft coral atau biota bentik lainnya, arus dan sedimentasi. Dominasi karang Acropora, foliose dan massive di perairan Pulau Lirang dapat diartikan masih terjadinya kesetimbangan ekosistem terumbu karang di perairan tersebut, dimana Acropora sebagai indikator percepatan pertumbuhan dan pemulihan, karang foliose menandakan ketahanan akan kerusakan fisik seperti arus dan gelombang dan karang massive sebagai indikator ketahanan perubahan iklim global. Research on the percentage of substrate cover on coral reef waters was conducted in Lirang island, Southwest Maluku Regency. The aim of this research was to determine the percentage of substrate cover in the waters. Data collection was conducted in April 2016, in six locations with 100 m long transect for each location. The data was collected using Point Intercept Transect (PIT) method using SCUBA equipment. The result showed that average live coral cover in Lirang Island waters, Southwest Maluku is 33,75%, with the highest coral cover at Station VI (54%). The exsisting coral mortality at Station V (48%) was assumed because of competition with soft corals or other benthic biota, and sedimentation. The domination of the coral life form Acropora, Foliose, and Massive in Lirang island waters indicated that the ecosystem balance in these area was still maintained. The existence of Acropora life form is an indicator of accelerated growth and recovery, while foliose life form is an indicator of durability and physical damage from current and wave. Lastly, massive coral life form is an indicator of resistance to climate change.
Pemberian Pelet dengan Ukuran Berbeda terhadap Pertumbuhan Kepiting Bakau (Scylla serrata Forsskål, 1775) Aditya, Bagus Pitra; Sunaryo, Sunaryo; Djunaedi, Ali
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.884 KB) | DOI: 10.14710/jmr.v1i1.2003

Abstract

Mud crab (S. serrata Forsskål, 1775) is one of the fisheries resources that has high economic value and potential to be cultivated. This study examines provision pellets of different sizes, adapted to the mangrove crab eating patterns. The purpose of this study is investigated the effect of different sizes pellets for the growth of mud crab (S. serrata Forsskål, 1775). This research was conducted at the Laboratory of Coastal Area Development (LPWP), UNDIP, Faculty of Fisheries and Marine Science, University of Diponegoro, Jepara, for 35 days, in October-November 2011. The research method in this study was used experimental laboratory with completely randomized design (CRD) with 3 treatments and 10 replications in each treatment, ie: treatment A (Ø pellets + 10 mm), treatment B (Ø pellets + 5 mm) and treatment C (Ø pellets + 1 mm). Initial weight of mud crab test is 50-55 g and have male gender. Growth of mud crab can be seen from the observation from SGR and supported by some other data, ie: the amount of feed intake, FCR, PER, the amount of energy consumption in feed and water quality parameters. These results indicate that administration of treatment different size pellets effect is very significant (p<0,01) on SGR, FCR, PER. SGR data suggest that on average in treatment A (5,42+0,64) reached the highest value, but not significantly different (p>0,05) with treatment B (5,17+0,52), where’s treatment C (4,02+0,51) reached the lowest value. FCR data show that, in treatment A (5,21+1,12) reached the lowest value, but not significantly different (p>0,05) with treatment B (5,42+1,15), while treatment C (7,16+1,55) reached the lowest value. PER data showed that, in treatment A (0,62+0,13) reached the highest value, but not significantly different (p>0,05) with treatment B (0,60+0,13), while treatment C (0,46+0,11) reached the lowest value.
Variasi Ukuran Kerang Darah (Anadara granosa) di Perairan Pesisir Kecamatan Genuk Kota Semarang Mulki, Al Bar Rauuf; Suryono, Chrisna Adhi; Suprijanto, Jusup
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (290.488 KB) | DOI: 10.14710/jmr.v3i2.4973

Abstract

Kerang Darah merupakan salah satu spesies kerang yang banyak ditangkap oleh nelayan di sekitar pesisir Kecamatan Genuk, Kota Semarang.Penangkapan terhadap Kerang Darah yang berlebihan dan tidak terkendali dikhawatirkan menyebabkan kelangkaan bahkan kepunahan terhadap kerang dari jenis ini ditambah lagi dengan pertumbuhan Kerang Darah yang sangat lambat.Penelitian ini bertujuan untuk mengetahui variasi ukuran dan pola pertumbuhan dari Kerang DarahPenelitian ini dilakukan pada bulan Oktober sampai dengan bulan Desember 2012. Pengambilan sampel dilakukan pada 8 stasiun yang berbeda dan diambil satu bulan sekali.Metode yang digunakan dalam penelitian ini adalah metode diskriptif dan Purposive Sampling Method dalam menentukan lokasi penelitian.Hasil penelitian menunjukkan Kerang darah yang paling mendominasi yaitu kerang berukuran sedang (2,1 cm- 3,0 cm), dan kerang dengan berat 0,5 gram – 4,5 gram. Pola pertumbuhan Kerang Darah dari periode Oktober – Desember 2012 adalah allometri negatif dengan nilai b < 3 yang berarti kerang dalam kondisi kurus. Populasi Kerang Darah di perairan pesisir Kecamatan Genuk, Kota semarang sedang mengalami tekanan akibat dari aktivitas penangkapan oleh nelayan yang terus menerus.
Kandungan Seng (Zn) Dalam Air, Sedimen Dan Kerang Darah (Anadara granosa L) Di Perairan Tambaklorok Semarang Kalangie, Dimas Judah Mozes; Widowati, Ita; Suprijanto, Jusup
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (483.393 KB) | DOI: 10.14710/jmr.v7i1.25887

Abstract

ABSTRAK : Tingginya aktivitas pesisir di daerah Tambaklorok serta adanya penurunan tanah dan abrasi pantai diduga menjadi sumber pencemaran logam berat. Salah satu bentuk pencemaran logam berat tersebut adalah logam berat seng (Zn). Penelitian ini bertujuan untuk menganalisis kandungan logam berat Zn dalam air, sedimen dan jaringan lunak kerang darah (Anadara granosa L) dan mengetahui nilai MTI dan MWI pada manusia. Penelitian ini dilakukan pada bulan November 2015 (uji pendahuluan), pengambilan sampel I (Desember 2015) dan II (Februari 2016). Uji pendahuluan dilakukan dengan cara membeli sampel kerang di pasar Tambaklorok yang langsung diambil dari perairan Tambaklorok. Metode dalam penelitian ini adalah metode deskriptif. Penentuan lokasi sampling dilakukan dengan metode purposive sampling. Analisa logam berat menggunakan AAS. Hasil penelitian menunjukan kandungan logam berat Zn dalam air sebesar 0,005 mg/l dan <0,001 mg/l, sedimen 109,2 mg/kg dan 75,89 mg/kg, Anadara granosa L sebesar 8,59 mg/kg (uji pendahuluan), 19,67 mg/kg, dan 18,68 mg/kg. Hasil menunjukan bahwa air, sedimen dan jaringan lunak kerang darah (Anadara granosa L) di Perairan Tambaklorok masih sesuai dengan baku mutu KMLH No. 51 tahun 2004 dan Wiconsin Department of Natural Resources tahun 2003 untuk sedimen. Nilai MWI dengan asumsi 60 kg untuk laki-laki sebesar 420 mg dan 45 kg untuk perempuan sebesar 315 mg. Nilai MTI asumsi 60 kg laki-laki pada uji pendahuluan sebesar 48,89 kg, Desember 2015 sebesar 21,35 kg dan Februari 2016 sebesar 22,48 kg. Sedangkan asumsi 45 kg untuk perempuan pada uji pendahuluan sebesar 36,67 kg, Desember 2015 sebesar 16,01 kg dan Februari 2016 sebesar 16,86 kg.  ABSTRACT : The high activity in the coastal areas Tambaklorok and a decrease in soil and coastal erosion is suspected to be the source of heavy metal pollution. One form of the heavy metal pollution was heavy metals zinc (Zn). This study aimed to analyze the Zn content of heavy metals in water, sediments and shellfish soft tissue blood (Anadara granosa L) and know the value of MTI and MWI in humans. This research was conducted in November 2015 (preliminary test), sampling I (December 2015) and II (February 2016). Preliminary test done by buying in the market Tambaklorok shellfish samples taken directly from the waters Tambaklorok. The method in this research is descriptive method. Determining the location of the sampling is done by purposive sampling method. Heavy metal analysis using AAS. The results showed Zn content of heavy metals in water of 0.005 mg / l and <0,001 mg / l, sediment 109.2 mg / kg and 75.89 mg / kg, Anadara granosa L of 8.59 mg / kg (preliminary test) , 19.67 mg / kg and 18.68 mg / kg. Results showed that water, sediments and shellfish soft tissue blood (Anadara granosa L) in the waters of Tambaklorok still in accordance with the quality standards KMLH No. 51 in 2004 and Wiconsin Department of Natural Resources in 2003 for sediment. MWI value assuming 60 kg for males at 420 mg and 45 kg for females at 315 mg. MTI value assuming 60 kg male in a preliminary test of 48.89 kg, in December 2015 amounted to 21.35 kg and February 2016 amounted to 22.48 kg. While the assumption of 45 kg for women in a preliminary test of 36.67 kg, in December 2015 amounted to 16.01 kg and February 2016 amounted to 16.86 kg. 

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