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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 825 Documents
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PEMETAAN KONDISI TERUMBU KARANG YANG TERKAIT DENGAN SEBARAN FOSFAT DAN NITRAT DI PERAIRAN PANTAI DESA KARIMUNJAWA DENGAN MENGGUNAKAN METODE SISTEM INFORMASI GEOGRAFIS Zainal, Jasmine Khairani; Subardjo, Petrus; Munasik, Munasik
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (773.682 KB) | DOI: 10.14710/jmr.v3i3.5985

Abstract

Desa Karimunjawa merupakan desa dengan kepadatan penduduk tertinggi yang terdapat di Kawasan Taman Nasional Karimunjawa, didukung dengan keberadaan dua dermaga penting bagi masyarakat Kepulauan Karimunjawa yaitu Dermaga Perintis dan Dermaga Syahbandar yang menjadikannya pusat perekonomian masyarakat kepulauan Karimunjawa. Perairan Pantai Desa Karimunjawa banyak dipengaruhi oleh aktivitas manusia yang tinggi dan berpotensi dalam peningkatan kandungan nitrat (NO3-) dan fosfat (PO43-) perairan yang dapat memberikan tekanan pada ekosistem terumbu karang, sehingga diperlukan kajian untuk mengetahui kualitas air perairan pantai desa Karimunjawa khususnya nitrat, fosfat dan kondisi ekosistem terumbu karang. Penelitian ini menggunakan metode penelitian deskriptif eksploratif menggunakan metode Manta Tow untuk kondisi terumbu karang dan analisis spasial pada ArcGIS 10 untuk sebaran kualitas air. Materi yang digunakan berupa sebaran dan kondisi terumbu karang dan kualitas air perairan pantai Desa Karimunjawa. Hasil penelitian menunjukkan bahwa luas terumbu karang di perairan pantai Desa Karimunjawa yang padat penduduk adalah 149,50 m2berdasarkan analisa satelit Landsat-8 dan kondisi terumbu karang masuk dalam kategori sedang (26-50%). Kandungan fosfat perairan berkisar antara 0,12-2,19 mg/l dan kandungan nitrat perairan berkisar antara 0,04-1,33 mg/l.
Pemanfaatan Mangrove Rhizophora mucronata Sebagai Pewarna Alami Kain Katun Dewi, Lutfianna Fatma; Pringgenies, Delianis; 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 (684.945 KB) | DOI: 10.14710/jmr.v7i2.25896

Abstract

ABSTRAK : Bagian-bagian pohon dari R. mucronata seperti serasah daun, kulit kayu, maupun limbah propagul diketahui memiliki kandungan pewarna yang ramah lingkungan. Potensi pewarna alami dari tumbuhan ini dapat menjadi alternatif bahan produksi bagi industri batik di Indonesia. Pengambilan sampel dilakukan di Teluk Awur, Jepara, Jawa Tengah pada bulan Oktober 2015 kemudian dilakukan ekstraksi pewarna, pewarnaan, dan berbagai analisis. Tujuan penelitan adalah untuk mengetahui kualitas pewarna alami dari bagian-bagian pohon R. mucronata sebagai pewarna alami pada kain katun. Sampel R. mucronata yang diambil yaitu kulit kayu, limbah propagul, dan serasah daun. Ekstraksi pewarna dilakukan menggunakan air panas pada suhu 30°C, 50°C, dan 70°C. Pengikatan warna setelah pencelupan menggunakan kain katun mori primissima dengan mordan tawas. Hasil penelitian menunjukkan bahwa warna cokelat dihasilkan oleh ekstrak R. mucronata. Analisis FTIR dan UV Vis mengindikasikan adanya senyawa tanin terkondensasi. Pengujian Total Phenol Content (TPC) dan Total Flavonoid Content (TFC) menunjukkan hasil positif sebesar 2,4950 mg GAE/g untuk TPC dan 0,6516 mg QE/g untuk TFC. Hasil pindaian dengan Scanning Electron Microscope menunjukkan granula-granula yang pecah pada spesimen. Kualitas pewarnaan pada kain menunjukkan kisaran hasil antara 3 (cukup) hingga 4 (baik) dan telah memenuhi standar SNI. Pewarna dari serasah daun pada ekstraksi 70°C menunjukkan hasil terbaik di antara yang lain. ABSTRACT : The tree parts of R. mucronata such as the leaves litter, bark, and propagule are known for containing dyes that are environmentally friendly. This natural dye potential could be used for the production resource alternative for the batik industry in Indonesia. Sampling was conducted in Teluk Awur, Jepara, Central Java on October 2015 and followed by dye extraction, dying process, and also several analysis. The purpose of this research was to discover the quality of natural dye from R. mucronata on cotton fabric. Samples that were taken from R. mucronata were bark, leaves litter, and propagule litter. Dye extraction used hot water method with variants of temperature: 30°C, 50°C, dan 70°C. The color locking after dyeing used cotton fabric with mori primissima type and alum as the mordant. The obtained result from extract R. mucronata showed brown color. Condensed tannin was indicated from FTIR and UV Vis analysis. Total Phenol Content and Total Flavonoid Content assays showed positive result as follows: 2,4950 mg GAE/g for TPC and 0,6516 mg QE/g for TFC. Scanning result using Scanning Electron Microscope showed that the granules break on the specimen. Color fastness quality showed the range of result from colored fabric from 3 (enough) until 4 (well) and already fulfilled SNI standard. The dye extracted from leaves litter in 70°C showed the best result among the others. 
KONDISI KEMATANGAN GONAD IKAN KARANG PADA BULAN FEBRUARI DI PERAIRAN PULAU KOON, SERAM BAGIAN TIMUR, MALUKU Ihkamuddin, Zihni; Redjeki, 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 (359.102 KB) | DOI: 10.14710/jmr.v3i3.6008

Abstract

Perairan Pulau Koon terletak di Kabupaten Seram Bagian Timur dan merupakan wilayah konservasi di Indonesia Timur yang telah ditetapkan sejak tahun 2011. Penelitian ini bertujuan untuk mengetahui jenis ikan karang yang tertangkap oleh nelayan dan mengetahui kondisi kematangan gonad ikan karang pada bulan Februari di sekitar kawasan perairan Pulau Koon. Analsis data yang digunakan tingkat kematangan gonad (TKG) berdasarkan Holden dan Raitt (1974), nilai Gonado Somatic Index (GSI) dan Gonado Index (GI). Hasil penelitian mendapatkan sampel ikan sebanyak 60 ekor tersusun atas 4 famili yang terdiri dari 6 genus dan 13 species (Cephalopholis cyanostigma, Cephalopholis urodeta, Epinephelus polyhekadion, Epinephelus bleekeri, Lethrinus ornatus, Lutjanus bohar, Lutjanus ehrengergi, Lutjanus monostigma, Lutjanus gibbus, Lutjanus sebae, Plectorhinchus lineatus, Plectorhincus multivittatus dan Pristopomoides multidens). Berdasarkan data TKG diduga pada bulan Februari merupakan masa reproduksi aktif untuk 11 spesies ikan Cephalopholis cyanostigma, Epinephelus polyhekadion, Lethrinus ornatus, Lutjanus bohar, Lutjanus ehrengergi, Lutjanus monostigma, Lutjanus gibbus, Lutjanus sebae, Plectorhinchus lineatus, Plectorhincus multivittatus dan Pristopomoides multidens.
Uji Pendahuluan Aktivitas Produk Biotransformasi Daun Mangrove Avicennia marina Dengan Isolat Jamur Terhadap Bakteri Patogen Klebsiella pneumonia dan Enterobacter aerogenes Sabiladiyni, Humairah Arifia; Trianto, Agus; 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 (488.326 KB) | DOI: 10.14710/jmr.v7i4.25926

Abstract

ABSTRAK : Penyebaran bakteri patogen Klebsiella pneumonia dan Enterobacter aerogenes di Indonesia pada tahun 2013 diketahui mencapai 67,81%. Sumber antibiotik berasal dari bahan kimia juga dari alam, salah satunya berasal dari jenis mangrove A. marina yang mengandung senyawa flavonoid, steroid, fenol, dan tannin. Ekstrak daun A. marina kurang efektif sehingga perlu dilakukan proses biotransformasi dengan harapan akan terbentuk senyawa baru yang lebih berpotensi. Penelitian ini dilakukan untuk mengetahui apakah ekstrak jamur dapat menghambat pertumbuhan bakteri dan penambahan daun mangrove pada media jamur akan mengubah senyawa yang terkandung pada ekstrak daun mangrove. Sampel daun mangrove Avicennia marina diambil di Desa Tugurejo, Semarang dan isolat jamur yang digunakan adalah Fusarium incarnatum, isolat C12 dan C14. Bakteri patogen yang akan diuji adalah bakteri patogen Klebsiella pneumonia dan Enterobacter aerogenes. Kultur jamur dilakukan dengan menambahkan 200 gr dan 400 gr daun mangrove dalam 1000 ml air laut sebagai campuran media. Aktivitas antibakteri dengan menggunakan metode difusi agar. Ekstraksi daun mangrove dan jamur simbion dengan pelarut metanol. Hasil ekstraksi kemudian diuji aktivitas antibakteri dengan konsentrasi 250 μg/disk, 500 μg/disk, dan 1000 μg/disk. Deteksi kelas senyawa antibakteri menggunakan KLT. Visualisasi dengan sinar UV dan reagen vanillin asam sulfat. Ekstrak C14 dengan media daun mangrove 400 gr menunjukan zona hambat terbesar 12,3 mm pada konsentrasi 500 μg/disk terhadap bakteri Enterobacter aerogenes dan termasuk golongan kuat. Hasil KLT menunjukkan ekstrak jamur C14 memiliki kandungan yang hampir sama dengan ekstrak mangrove, tetapi setelah disemprotkan vanillin asam sulfat terdapat senyawa lain yang berbeda dari ekstrak daun mangrove. ABSTRACT : The emerge of pathogenic bacteria Klebsiella pneumonia and Enterobacter aerogenes in Indonesia are now reached 67,81% in 2013. One of the natural source is mangrove A. marina that contained bioactive compound such as flavonoid, steroid, fenol,and tannin. Mangrove leaves extract is often not effective, so biotransformation process is necessary to change the previous substrate become the new potential compound. The aims of this research to know whether fungal extract can inhibit the bacterial growth and the addition of mangrove leaves on fungal media will change a compound contained on mangrove leaves extract. Mangrove leaves are collected from Desa Tugurejo, Semarang and fungal isolation using Fusarium incarnatum, C12 and C14. K. pneumonia and E. aerogenes were the pathogenic bacteria assayed. The addition of mangrove leaves around 200 gr and 400 gr for fungi culture. Antibacterial activity by agar diffusion method. Extraction of mangrove leaves and fungal symbiont were attached with methanol solvent. Then, this crude extract were assayed for antibacterial activity by the consecutive extract concentrations of 250, 500, and 1000 μg/disk. Detection of class antibacterial compound was carried out using TLC method and visualization with UV light and vanillin sulfuric acid. The largest antibacterial activity in extract C14 about 12,3 mm with consentration 500 μg/disk that inhibits Enterobacter aerogenes and belong to strong group. The results of TLC showed that extract C14 have almost the same compound with mangrove leaves extract, but after sprayed with vanillin sulfuric acid, there are several compound which different with mangrove leaves extract.
KAJIAN KONSERVASI EKOSISTEM MANGROVE DI DESA PASAR BANGGI, KABUPATEN REMBANG Annas, Niharul; Suryono, Suryono; Pribadi, Rudhi
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (196.253 KB) | DOI: 10.14710/jmr.v2i2.2352

Abstract

northern coast of central java. The manage of ecosystem mangrove there started since 1960 with conduct rehabilitation especially independently by the community. The purpose of this research is to study the management of existing mangrove ecosystem conservation and composing the development strategy for conservation area mangrove ecosystem in the Pasar Banggi village. Methods used in this research is descriptive explorative. A method of collecting data by using a method of surveying in the form of primary and secondary data. Data obtained by the kinds of vegetation analyze and SWOT analyze (strength, weakness, opportunity and thread). The results stated that the density of the category tree is worth 2700-3100 ind/ha, Sapling 933-2533 ind/ha, in seedling 83333-100000 ind/ha. The parameters of water quality in the mangrove ecosystem Pasar Banggi suitable for mangrove habitat. The most suitable method of planting is seeds in a polybag. Problems in rehabilitation include biological factors (barnacles, gastropoda and algae), physical factors (wave, wind, sediment, reclamation) and anthropogenic factors (pollution, land conversion, hunting mangrove worms). The presence of community leaders and frequent counseling makes the level of public knowledge about the benefits of mangroves are good. The community participation levels 80%. Rehabilitation is the most common forms of community participation in the Pasar Banggi the rehabilitation are mostly that come from self-help by the community (57.08%) and government assistance or private (42.92%). According to the results of the SWOT analysis, which is a top priority at the Pasar Banggi are: a) Determination of the zone within the mangrove ecosystem conservation (score 4.52) and b) increase the participation of stakeholders on mangrove ecosystem conservation program (score 3.29).
Studi Perubahan Garis Pantai Di Teluk Banten Menggunakan Citra Satelit Landsat Multitemporal Kusumastuti, Erni; Pratikto, Ibnu; 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 (306.715 KB) | DOI: 10.14710/jmr.v3i4.11424

Abstract

Garis pantai adalah garis yang dibentuk oleh perpotongan antara air laut dengan daratan pantai. Perubahan garis pantai dapat terjadi akibat fenomena akresi dan abrasi pantai. Akresi pantai adalah kondisi semakin majunya pantai karena penambahan material dan proses marin, sedangkan abrasi pantai adalah kerusakan pantai yang mengakibatkan semakin mundurnya pantai karena kegiatan air laut. Penelitian ini dilaksanakan pada bulan Juni-Juli 2013 di Teluk Banten Kabupaten Serang untuk mengetahui perubahan garis pantai di Teluk Banten, Kabupaten Serang, Propinsi Banten dari tahun 1999 sampai tahun 2013. Metode yang digunakan dalam penelitian ini adalah metode deskriptif. Analisis data menggunakan análisis multitemporal menggunakan citra satelit Landsat (sensor ETM+ 7 tahun 1999, 2007 dan OLI 8 tahun 2013). Hasil penelitian menunjukkan bahwa perubahan garis pantai Teluk Banten selama tahun 1999 sampai dengan 2007 mengalami abrasi seluas 64,63 ha dan akresi seluas 248,06 ha. Sedangkan pada tahun 2007 sampai dengan 2013 mengalami abrasi seluas 297,76 ha dan akresi seluas 31,26 ha. Tingkat kerusakan pantai di Teluk Banten lebih tinggi di daerah pantai bagian timur daripada daerah pantai bagian barat
ANALISIS KESESUAIAN PERAIRAN UNTUK WISATA SNORKELING DAN DIVING DI PULAU PISANG BAGIAN UTARA KECAMATAN PESISIR UTARA LAMPUNG BARAT Lazuardi, Irfan; Subardjo, Petrus; Hariyadi, Hariyadi
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (302.814 KB) | DOI: 10.14710/jmr.v2i3.3144

Abstract

Pisang Island is one of the islands located in the Coastal West Lampung regency precisely in West Lampung. Expected with the development of Pisang Island as a tourist destination it will beable to increase revenue and the welfare of society in western Lampung. Utilization of coastal and marine resources in West Lampung could be the development of nautical tourism in the region in this regard Pisang Island. One form of nautical tourism is snorkeling and diving activities. However, in the tourist development efforts in Pisang Island have held identification and approach problems first. The most fundamental and the purpose of this studyis to conducta study on the suitability of water level in Pisang Island, especially for snorkeling and diving tourism activities. Research carried out by field observations (collecting primary data and secondary data) for 2 months in July 2011 to August 2011 in the northern part of the Pisang Island, which is divided into thirteen point sampling locations. Primary data collection consisted of coral cover data retrieval and type of life formusing LIT, count the number off is husing visual census of fish and measure the brightness levels use these cchidisk. The method used for the analysis of the research is descriptive method of analysis with the help of Travel Suitability Index which produces the suitability andvalue of the carrying capacity of tourist areas. Based on the results obtained from the calculation of travel suitability index for snorkeling and diving touris snorkeling tours there instations 1, 2, 3, and 5 are located at a depth of 3 meters. And for diving there instations 6, 7, 8, 9, 11, 12, 13 and 14 are located at a depth of 5 meter still 10 meters.
Logam Pb pada Avicennia marina Forssk, 1844 (Angiosperms : Acanthaceae) di Lingkungan Air, Sedimen, di Pesisir Timur Semarang Testi, Ega Hagita; Soenardjo, Nirwani; 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 (560.838 KB) | DOI: 10.14710/jmr.v8i2.25212

Abstract

Akar Avicennia marina merupakan bagian yang pertama terpapar logam berat timbal. Akar ini menyerap dan menyebarkan keseluruh bagian tanaman. Tujuan dari penelitian ini untuk mengkaji kandungan logam berat Pb dalam akar dan daun A. marina disekitar Kawasan Perairan Industri Terboyo, Semarang. Metode yang digunakan adalah metode deskriptif dan penentuan lokasi dengan metode purposive sampling. Pengambilan sampel meliputi air, sedimen, akar, dan daun mangrove di sepanjang aliran Sungai Sringin, Sungai Babon, dan Sungai Tenggang. Analisis kandungan logam berat di air dilakukan di Laboratorium Balai Lingkungan Hidup (BLH). Analisis kandungan logam berat di sedimen, akar, daun muda dan daun tua dilakukan di Laboratorium Balai Besar Teknologi Pencegahan Pencemaran Industri (BBTPPI) dengan menggunakan Atomic Absorbtion Spectrophotometry (AAS). Kandungan logam berat dalam air <0,00-0,01 mg/L, sedimen <0,03 - 6,23 mg/kg, akar 0,20-0,31 mg/kg, daun muda 0,10-0,13 mg/kg, dan daun tua 0,10-0,15 mg/kg. Hasil penelitian dapat disimpulkan bahwa kandungan logam berat di air diatas baku mutu (KepMen LH No. 51, 2004) sebesar 0,008 mg/L sedangkan sedimen dibawah baku mutu (National Oceanic and Atmospheric Administration, 1999) sebesar 30,24 ppm. ABSTRACT : The roots of Avicennia marina was a plant that can be accumulated by heavy metals. This  plant roots were first exposed to heavy metals, especially heavy metals Pb, was the root. The roots would absorb and spread in all parts of the plant This study was aimed to examine the heavy metal content of Pb in the roots and leaves of A. marina around Area of Terboyo Industrial Water, Semarang. The method used in this research was descriptive method and the location decision with  purposive sampling method. The sampling included were water, sediments, roots, mangrove leaves along Sringin River, Babon River, and Tenggang River. The analysis of heavy metal content in the water was performed in the Laboratory of Environment (BLH). The analysis of heavy metal content in the sediment, the roots, young leaves and old leaves were conducted in Laboratory Technology Center Industrial Pollution Prevention (BBTPPI) using Atomic Absorption Spectrophotometry (AAS). Heavy Metal contained in water < 0,00 to  0,01 mg/L, sediment < 0,030 to 6,23 mg/kg, the roots of A. marina were 0,20 to 0,31 mg/kg, the young leaves were 0,10 to 0,13 mg/kg, and the old leaves 0,10 to 0,15 mg/kg. the result of this research can be concluded that the heavy metal content  in water were high quality standard (KepMen LH No. 51, 2004) of 0,008 mg/L and in sediments below was
Pengaruh Penambahan NPK dan UREA Pada Media Air Pemeliharaan Terhadap Pertumbuhan Rumput Laut Caulerpa racemosa var. uvifera Setiaji, Kristama; Santosa, Gunawan Widi; Sunaryo, Sunaryo
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (88.896 KB) | DOI: 10.14710/jmr.v1i2.2018

Abstract

Seaweed is a low-level photosynthetic organism that has no stem, leaves, or root. Seaweeds are commonly used as food and as an ingredient for the food industry, pharmaceutical industry, cosmetics industry, and other industries. Caulerpa is potential to be cultivated because it has been known and liked by people. Beside, Caulerpa also has economic value for people. This kind of seaweed grows seasonally, but sometimes Caulerpa cannot be found in the water even during the season because its growth highly depends on the environment’s condition. This situation leads to Caulerpa production shortages. Hence, Caulerpa cultivation is necessary. The purpose of this research is to know the effect of adding NPK and urea at different concentration to the growth rate of Caulerpa racemosa var. uvifera. This research was conducted from May till July 2011 at Laboratory of Marine Science, Faculty of Fisheries and Marine Science Diponegoro University, Teluk Awur, Jepara. C. racemosa var. uvifera samples were taken from Bandengan coastal waters, Jepara the method used in this research was experimental method with a completely randomized block design. This research used 5 of treatments, each repeated 3 times. The cultivation medium used was sea water that has been deposited for 24 hours, with fertilizers added in different concentration: medium A was not added with fertilizers, medium B was added with 1.60 ppm of NPK fertilizers and 5.40 ppm of urea fertilizers, medium C was added with 4.93 ppm of NPK fertilizers and 10.82 ppm of urea fertilizers, medium D was added with 8.26 ppm of NPK fertilizers and 16.26 ppm of urea fertilizers, and medium E was added with 11.60 ppm of NPK fertilizers and 21.70 ppm of urea fertilizers. The data gained were wet weight of seaweed and water quality of the cultivation medium. The data was analyzed using ANOVA. The result showed that the addition of NPK and urea fertilizers in different concentration gave different effect (p < 0.01) among each treatment. The highest specific growth rate of C. racemosa var. uvifera was achieved in medium D (6.86 % per day with 8.26 ppm of NPK and 16,26 ppm of urea addition) while the lowest specific growth rate was obtained in medium A (5.97% per day with no NPK and urea addition).
Studi Biologi Ikan Pari (Dasyatis sp) di TPI Tasik Agung Rembang Syam Utami, Mutiari Nurul; Redjeki, Sri; Putra Jaya, Nur Taurif Syamsudin
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (153.911 KB) | DOI: 10.14710/jmr.v3i2.4967

Abstract

Indonesia merupakan negara kepulauan terluas di dunia yang memiliki lebih dari 17,000 pulau, teridentifikasi ada 9,634 pulau yang belum memiliki nama. Negara ini beriklim tropis dan memiliki lima buah pulau besar yaitu Sumatra, Jawa, Kalimantan, Sulawesi dan Irian. Indonesia juga tercatat sebagai salah satu negara yang memanfaatkan sumber daya ikan bertulang rawan (hiu dan pari) terbesar di dunia. Ikan hiu dan pari yang tertangkap bisa sebagai hasil tangkap sampingan maupun sebagai tangkapan utama. Sampai saat ini informasi tentang biologi ikan pari di perairan Jawa dan wilayah lain yang diperoleh masih sedikit, sehingga hal ini menimbulkan kesulitan dalam pengelolaannya. Penelitian ini bertujuan untuk mengetahui biologi ikan pari dengan menghitung panjang berat dan mengetahui isi lambung ikan pari yang didaratkan di TPI Tasik Agung Rembang. Penelitian ini dilakukan dengan metode penelitian deskriptif, dimana pengambilan data dengan menggunakan sample survey method. Penelitian dilaksanakan bulan April – Mei 2013 di TPI Tasik Agung Rembang. Materi yang digunakan adalah 88 sampel Ikan Pari (Dasyatis sp). Sampling Ikan Pari (Dasyatis sp) dilakukan sebanyak 4 kali yaitu tanggal 13 April, 27 April, 11 Mei dan 25 Mei 2013. Analisis data berupa analisis hubungan panjang dan berat, analisis makanan dan mengetahui jenis makanan. Hasil penelitian menunjukkan pertumbuhan ikan pari pada bulan April – Mei 2013 bersifat allometrik negatif yang memiliki nilai slope (b) sebesar 2,835. Komposisi isi lambung ikan pari didominasi dengan jenis makan udang yang lebih banyak, sedangkan jenis anak ikan lebih sedikit.

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