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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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Kandungan Logam Berat Timbal (Pb) dan Tembaga (Cu) pada Karang Pocillopora damicornis di Perairan Taman Nasional Karimunjawa Faiz, Muhamad Ziaul; Sabdono, Agus; Ambariyanto, Ambariyanto
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (142.627 KB) | DOI: 10.14710/jmr.v2i1.2849

Abstract

Human activities in the Karimunjawa National Park increase water pollution, including heavy metals such as lead (Pb) and copper (Cu). The existence of heavy metals in sea waters can not be degraded, but it can be absorbed and accumulated in the body of organisms, including coral, Pocillopora damicornis. Given the existence of coral P. damicornis as sessile organism which are able to absorb lead (Pb) and copper (Cu) from the water, therefore, it is necessary to conduct research on heavy metals content in the coral. The purpose of this study was to determine the content of heavy metals lead (Pb) and copper (Cu) on the coral P. damicornis taken from several locations around the Karimunjawa National Park. The results of the study showed that heavy metals content in the water was not detected. While the highest Pb and Cu were found in the coral collected from Burung Island that was equal to 0.00405 ppm and 0.01121 ppm, respectively. The lowest Pb substance were found in the coral collected from Kemojan canal i.e. 0.00143 ppm. Sample collected from Indonoor, Kemojan canal and Karimunjawa port did not contain Cu substance. Based on Pb and Cu data contained in the coral and water samples Minister of Environment Decree No.51st, 2004, it could be concluded that the conditions of Karimunjawa National Park was still in the stage of no contamination.
Komposisi Dan Kelimpahan Plankton Di Perairan Kayome Kepulauan Togean Sulawesi Tengah Hutabarat, Philipus Uli Basa; Redjeki, Sri; 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 (251.698 KB) | DOI: 10.14710/jmr.v3i4.8366

Abstract

Plankton merupakan sekelompok organisme yang menyusun rantai dasar ekosistem perairan. Plankton dapat dibagi menjadi fitoplankton dan zooplankton. Tujuan penelitian ini adalah untuk mengetahui komposisi, kelimpahan, indeks keanekaragaman, indeks keseragaman, indeks dominansi fitoplankton dan zooplankton di Perairan Kayome, Kepulauan Togean, Sulawesi Tengah. Metode yang digunakan dalam penelitian ini adalah deskriptif eksploratif. Pengambilan sampel dilakukan pada tanggal 5-7 Oktober 2013 pada 5 stasiun yang berbeda yang merupakan kawasan penangkapan ikan karang. Sampel fitoplankton diambil dengan cara pasif dengan menyaring 100 L air laut. Sampel zooplankton diambil menggunakan metode aktif dengan menyaring air laut secara horisontal dan di tarik perahu 100 m. Hasil penelitian menunjukkan fitoplankton ditemukan 2 kelas, yaitu Bacillariophyceae (6 genera) dan Dinophyceae (1 genus). Kelimpahan berkisar 8.000-22.000 sel/l, genus yang sering ditemukan antara lain Chaetoceros, Pleurosigma, dan Ceratium. Indeks keanekaragaman 0,377-1,386 (rendah-sedang), indeks keseragaman 0,544-1 (sedang-tinggi) dan indeks dominansi 0-0,456 (tidak ada dominansi). Zooplankton ditemukan 5 fila, yaitu Annelida (2 genera dari 1 kelas), Arthropoda (12 genera dari 2 kelas), Chaetoagnatha (1 genus dari 1 kelas), Chordata (1 kelas), Mollusca (4 genera dari 2 kelas). Kelimpahan berkisar antara 309-796 ind./l, genus yang paling sering ditemukan, yaitu Acartia dan Calanus. Indeks keanekaragaman 0,467-1,04 (rendah-sedang), indeks keseragaman 0,337-0,541 (rendah-sedang) dan indeks dominansi 0,459-0,663 (ada dominansi).
Rasio Jenis Kelamin dan Tingkat Kematangan Gonad pada Rajungan (Portunus pelagicus) Linnaeus, 1758 (Malacostraca:Portunidae) yang Didaratkan di Kelurahan Pacar, Kabupaten Rembang Simanjuntak, Sri Devi; Yudiati, Ervia; Subagiyo, Subagiyo
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1091.42 KB) | DOI: 10.14710/jmr.v9i1.25784

Abstract

ABSTRAK : Rajungan (Portunus pelagicus) memiliki nilai ekonomi tinggi, dimana berbanding lurus dengan penangkapan yang meningkat. Tingkat pemanfaatan yang tidak mengindahkan ukuran dan kondisi rajungan dapat mempengaruhi struktur ukuran dan stok rajungan di suatu perairan. Penelitian ini bertujuan untuk melakukan kajian morfometri, rasio jenis kelamin dan tingkat kematangan gonad rajungan yang didaratkan di Kelurahan Pacar, Kabupaten Rembang. Metode yang digunakan dalam penelitian bersifat deskriptif dan eksploratif. Pengamatan rajungan dilakukan pada salah satu pengepul di Kelurahan Pacar. Rajungan yang diteliti berdasarkan morfometri, rasio seksual dan tingkat kematangan gonad selama 30 hari. Informasi ini dapat dijadikan pedoman dalam menentukan kebijakan mengenai pengelolaan perikanan rajungan yang berkelanjutan. Hasil dari penelitian diketahui bahwa ratio kelimpahan rajungan jantan sebesar 45% (1342 ekor); rajungan betina 55% (1658 ekor) dari 3000 ekor sampel rajungan. Rasio perbandingan jantan dan betina 0,80:1 berdasarkan uji chi square. Berdasarkan distribusi ukuran lebar karapas rajungan di perairan Kelurahan Pacar adalah berkisar antara 60–179 mm dan distribusi berat sebesar 23–251 gram. Distribusi tingkat kematangan gonad pada perairan Kelurahan Pacar adalah 558 ekor pada TKG 1; 761 ekor pada TKG 2; dan 339 pada TKG 3. Data menunjukkan bahwa pola pertumbuhan rajungan yang ada di perairan Kelurahan Pacar adalah allometrik negatif yaitu pertumbuhan lebar karapas lebih cepat bertambah daripada berat tubuhnya baik rajungan jantan maupun rajungan betina.ABSTRACT : Blue swimming crab (Portunus pelagicus) has a high economic value, which is causing the crab catch to rise as well. The catch rate that does not consider the size and maturity of sea crab can affect the size structure and population stock of sea crab in waters. This research to study morphometry, sexual ratio and maturity level of the gonads landed in Pacar Village, Rembang Regency.The method used in this study descriptive and exsplorative. Observation of blue swimming crab samples was carried out in one of the collectors in the village. Blue swimming crab was observed based on morphometry and sexual ratio for 30 days. The results of the study revealed that the abundance of male blue swimming crab was 45% (1342 male blue swimming crabs) and the abundance of the female blue swimming crabs was 55%  (1658 female blue swimming crabs) of 3000 blue swimming crab samples. The ratio of male and female   0.80 ; 1 based on the chi square. Based on the size distribution of the width of the blue swimming crab carapace in the waters of Pacar Village it range from 60-179 mm and the distribution of weight 23-251 grams. The distribution of gonad maturity level in the waters Pacar Village is 558 female blue swimming crab at TKG 1; 761 female blue swimming crab at TKG 2; and 339 female blue swimming crab at TKG 3. Data is showed that the blue swimming crab growth pattern in Pacar Village waters was negative allometric both male and female blue swimming crab.
KAJIAN KERENTANAN BENCANA TSUNAMI DI PESISIR KABUPATEN KULON PROGO PROVINSI D. I. YOGYAKARTA Widyawati, Ari; Handoyo, Gentur; Satriadi, Alfi
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (200.015 KB) | DOI: 10.14710/jmr.v2i2.2772

Abstract

Coastal of Kulon Progo Regency is located in the southern coastal area of Java island that potentially vulnerable to tsunami disaster because of its geographical position that directly opposite the Indian Ocean and the meeting place of two tectonic plates, the Eurasian plate and the Indo- Australian plate which is tectonically very active and can be tsunami source. Identification of tsunami vulnerable areas in Kulon Progo Regency is a disaster mitigation step to minimize the negative impact of the tsunami. The purpose of this research is to map the vulnerability of the environment to the tsunami in Kulon Progo Regency coastal. There are five classes of tsunami vulnerabilities in Kulon Progo Regency coastal is the particularly vulnerable class 7.77 km2, 19.82 km2 vulnerable class, the class is quite vulnerable 33.98 km2, 51.38 km2 less vulnerable class, and the class is not vulnerable 31.19 km2 . The area included in very susceptible and vulnereable class in the village of Glagah, Jangkaran, Karang Sewu, Banaran, Sindutan, Palihan, Garongan, Pleret, and Bugel. The class are quit vulnerable, less vulnerable, and not vulnerable include around the village areas of reserarch in Galur, Panjatan, Wates, and Temon district.
Pemetaan Kesesuaian Lahan Untuk Budidaya Rumput Laut Di Perairan Pulau Poteran, Kabupaten Sumenep, Jawa Timur Ferdiansyah, Hendra Irawan; Pratikto, Ibnu; Suryono, Suryono
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (464.244 KB) | DOI: 10.14710/jmr.v8i1.24324

Abstract

Perairan Pulau Poteran merupakan salah satu wilayah yang berlokasi di Kabupaten Sumenep, Jawa Timur. Budidaya rumput laut di Pulau Poteran terdapat beberapa kendala dalam pengembangannya, yaitu dari sarana prasarana perikanan yang kurang memadai, keterbatasan pemahaman sumber daya manusia, modal, kelembagaan serta penentuan lokasi budidaya rumput laut. Penggunaan teknologi Sistem Informasi Geografis (SIG) di bidang kelautan dapat memberikan gagasan yang baru dalam kesesuaian lahan untuk budidaya rumput laut. Tujuan dilakukan penelitian ini adalah menganalisa lahan yang berpotensi untuk budidaya rumput laut di perairan Pulau Poteran dan mengetahui luas lahan yang efektif untuk pengembangan budidaya rumput laut di perairan Pulau Poteran. Metode penelitian yang digunakan adalah metode eksploratif dengan pendekatan analisa kuantitatif untuk mengetahui tingkatan dan luasan kesesuaian lahan budidaya rumput laut di perairan Pulau Poteran. Hasil penelitian menunjukkan bahwa luas untuk kategori sangat sesuai (S1) sebesar 7.335,59 ha, sedangkan untuk kategori sesuai (S2) memiliki luas sebesar 17.990,11 ha dan kategori tidak sesuai (S3) memiliki luas sebesar 24.665,28 ha. Luas lahan yang efektif untuk pengembangan budidaya rumput laut di perairan Pulau Poteran sebesar 4.401,35 ha (60% dari luas sangat sesuai) dengan jumlah rakit yang dioperasikan sebesar 785.955 unit dengan ukuran rakit 7 x 8 m. The territorial waters of Poteran Island are one of the areas located in Sumenep Regency, East Java. There are some problems in seaweed cultivation of Poteran Island, which are facilities, fishery infrastructure, limited human resources, financial, and institutional and the determination of the location of seaweed cultivation. The use of Geographic Information System (GIS) technology in the marine field can give new idea in land suitability for seaweed cultivation. The purpose of this research is to analyze the potential for seaweed cultivation in the waters of Poteran Island and know the effective land area for the development of seaweed cultivation in the waters of Poteran Island. The research method used is an exploratory method with a quantitative analysis approach to determine the level and extent of the suitability of seaweed cultivation in Poteran island waters. The results showed that the area for the very suitable category (S1) amounted to 7,335.59 hectare, while the corresponding category (S2) has an area of 17,990.11 hectare and the unsuitable category (S3) has an area of 24,665.28 hectare. Effective land area for the development of seaweed cultivation in the territorial waters of Poteran Island amounted to 4,401.35 hectare (60% of the area is very suitable) with the number of rafts operated by 785,955 units with a raft size of 7 x 8 m.
Pengaruh Depurasi Terhadap Konsentrasi Logam Berat Timbal (Pb) dan Kadmium(Cd) dalam Jaringan Lunak Kerang Darah (Anadara granosa) Setiawan, Alam; Yulianto, Bambang; Wijayanti, Diah Permata
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1314.431 KB) | DOI: 10.14710/jmr.v2i4.3680

Abstract

Blood Cockle (Anadara granosa) is one type of shellfish which have an important economic value in Indonesia. Semarang waters is one of the location of the Blood Cockle which were allegedly tainted by Pb and Cd. The metal content could be reduced by depuration. This research purposed to determine the content of heavy metal concentrations in Semarang waters and determine the effect of shell length and the length of depuration time on the heavy metal concentrations of Pb and Cd in the A. granosa. This research was conducted on 23 July to 28 August 2010. The method used in this study is description on the preliminary research and laboratory experimental method for depuration. Preliminary research was performed by testing the concentration of heavy metals in water, sediments and soft tissue of A. granosa in the waters of Semarang. Primary research conducted depuration process based on differences size of the scallop shell length ≥ 2.0 cm and < 2.0 cm, and different time depuration treatment, i.e. control (without depuration), 1 day, 3 day, 5 day, and 7 days. According to AAS test results showed, the highest concentrations of Pb and Cd heavy metals in Semarang water respectively at 0.23 ppm and 0.036 ppm, in sediment 1.48 ppm and 0.091 ppm, and in the soft tissues of A. granosa of 0.82 ppm and 0.042 ppm. Depuration process can reduce the content of heavy metal concentrations of Pb and Cd, respectively at 0.37 ppm and 0.051 ppm.
Ekologi Rumput Laut di Perairan Tanjung Pudak Kepulauan Karimunjawa, Jawa Tengah Khudin, Miftah; Santosa, Gunawan Widi; 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 (521.765 KB) | DOI: 10.14710/jmr.v8i3.25273

Abstract

Penelitian mengenai struktur komunitas rumput laut ini dilakukan di Perairan Tanjung Pudak Pulau Karimunjawa. Penelitian ini bertujuan untuk mengetahui kondisi ekologi rumput dan struktur komunitas di Perairan Tanjung Pudak Pulau Karimunjawa. Pengumpulan data dilakukan bulan Mei 2016 pada lima stasiun menggunakan transek kuadran ukuran 50x50cm dengan interval antar stasiun 25 meter. Hasil penelitian menunjukkan bahwa selama penelitian ditemukan 7 spesies yang terbagi atas 2 divisi. Chlorophyta (3 spesies) dan Phaeophyta (4 spesies). Nilai keanekaragaman yang ditemukan berkisar antara rendah hingga sedang. Nilai keseragaman yang ditemukan berkisar sedang hingga tinggi, sedangkan nilai dominansi yang ditemukan berkisar rendah hingga sedang. Faktor yang mempengaruhi persebaran rumput laut adalah cahaya, suhu, salinitas dan jenis substrat. Kondisi komunitas rumput laut di perairan Tanjung Pudak, Pulau Karimunjawa masih tergolong baik, karena semua parameter kualitas air yang telah diukur memenuhi syarat bagi pertumbuhan optimum rumput laut kecuali kandungan nitrat dan fosfat. This research was conducted in Tanjung Pudak waters, Karimunjawa Island, Central Java. The purpose of this research was to determine the ecological condition and community structure of seaweed in Tanjung Pudak waters. The data were collected on May 2016 in five stations, using the 50x50 cm-sized quadrant transect with 25 meters interval between each stations. The results showed that during the study found 7 species were divided into 2 divisions. Three species of Chlorophyta and four species of Phaeophyta. Diversity values were found in range from low to moderate. Uniformity values were found to be moderate to high, while dominance values were found in range from low to moderate. Factors that influence the distribution of seaweed are light, temperature, salinity and type of substrate. The condition of the seaweed community in the waters of Tanjung Pudak, Karimunjawa Island is still relatively good, because all measured water quality parameters qualify for optimum growth of seaweed except the content of nitrate and phosphate.
Kandungan Logam Berat Pb dan Fe pada Air, Sedimen, dan Kerang Hijau (Perna viridis) Di Sungai Tapak kelurahan Tugurejo Kecamatan Tugu Kota Semarang Pratama, Aditya Gandhi; Pribadi, Rudhi; Maslukah, Lilik
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (292.922 KB) | DOI: 10.14710/jmr.v1i1.1998

Abstract

Tapak River in Semarang City District Tugu alleged to have received the negative impacts of disposal of industrial wastes, aquaculture activities, and the existence of settlements in the surrounding streams containing heavy metals and can degrade water quality. Heavy metals such as Pb and Fe into the aquatic environment will experience precipitation, dilution and dispersion, then absorbed by the organisms that live in these waters. When exposed to organisms, high concentrations of heavy metals can be toxic and tend to accumulate in vital organs. Accumulation may have an impact on the food chain that affect human health. This study aims to determine the content of heavy metals lead (Pb) and iron (Fe) in water, sediment, and mussels (breathing viridis) in the River District Tread monument city of Semarang. There are four stations are used as the sampling site. A station is located close to the highway, Station B is located close to the sewer plant, Station C is located close to residential area, and Station D is located at the mouth of the river. The results showed that the average value of the highest content of Pb in the water at station A (1.11 mg / l). The average value of the highest content of Fe in the water at Station B (1:33 mg / l). The average value of the highest content of Pb in the sediments at Station A (62.87 mg / kg). The average value of the highest content of Fe in the sediments at Station A (59232.37 mg / kg).
STRUKTUR KOMUNITAS ZOOPLANKTON PADA DAERAH PERTAMBAKAN DI DESA MANGUNHARJO, KECAMATAN TUGU, KOTA SEMARANG Ahmad, Octo Zainul; Endrawati, Hadi; Taufiq SPJ, Nur
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (124.015 KB) | DOI: 10.14710/jmr.v3i3.5984

Abstract

Penelitian ini dilakukan di pertambakan Desa Mangunharjo Kecamatan Tugu, Kota Semarang. Metode yang digunakan adalah metode deskriptif eksploratif dengan pengumpulan data menggunakan metode Purposive sampling. Pengambilan sampel dilakukan setiap 2 minggu sekali selama 4 kali sampling masing-masing 3 kali pengambilan menggunakan planktonnet dengan ukuran mata jaring 45 μm. Pengambilan sampel dilakukan secara horizontal sepanjang 4 m secara aktif. Parameter perairan yang diukur meliputi : Salinitas, Suhu, Kedalaman, DO, derajat keasaman (pH) , arus dan Kecerahan. Hasil penelitian diperoleh 30 genera. Kelimpahan zooplankton menunjukkan nilai 13,838 – 28,708 ind/L, dimana nilai Kelimpahan tertinggi terdapat pada sampling ke- 3 di Stasiun I dengan nilai 28,708 ind/L dan nilai Kelimpahan terendah terdapat pada sampling ke- 4 di Stasiun III dengan nilai 13,838 ind/L. Indeks Keanekaragaman menunjukkan nilai  1,01 – 2,386 yang termasuk kategori rendah-sedang . Indeks Keseragaman menunjukkan nilai 0,38 – 0,701 yang menunjukkan kategori sedang-tinggi. Sedangkan Indeks Dominansi menunjukkan nilai 0,298 – 0,702, dimana pada Stasiun III sampling ke- 2 terdapat adanya dominansi karena memiliki nilai indeks 0,701 dan Stasiun I sampling ke- 2 tidak ada dominansi karena memiliki nilai indeks 0,38. 
Sebaran Jenis Lamun di Perairan Pulau Lirang Maluku Barat Daya Provinsi Maluku Saputro, Muhammad Adi; Ario, Raden; 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 (807.051 KB) | DOI: 10.14710/jmr.v7i2.25898

Abstract

ABSTRAK : Lamun adalah tumbuh-tumbuhan berbunga (Angiospermae) yang hidup pada lingkungan perairan laut dangkal, ekosistem padang lamun merupakan sebuah ekosistem pesisir yang mempunyai peranan ekologik penting bagi lingkungan laut dangkal yaitu sebagai habitat biota, produsen primer, penangkap sedimen (sediment trap) serta berperan sebagai pendaur zat hara dan elemen kelumit (trace element). Salah satu faktor yang mempengaruhi kondisi padang lamun adalah parameter lingkungan, yaitu suhu, salinitas, pH, DO, substrat dasar, dan kecerahan. Penelitian yang dilakukan di Perairan Pulau Lirang bertujuan untuk mengetahui kerapatan, sebaran jenis, dan parameter lingkungan yang mempengaruhi kondisi padang lamun di perairan tersebut. Penelitian ini menggunakan metode eksploratif yang dilakukan di 4 lokasi penelitian, yaitu bagian utara, timur, selatan, dan barat Pulau Lirang, yang masing-masing lokasi pengamatan terbagi 3 stasiun pengamatan. Jumlah jenis lamun yang ditemukan adalah sebanyak 10 jenis lamun, yaitu  Cymodocea rotundata, C. serrulata, Enhalus acoroides, Halodule pinifolia, H. uninervis, Halophila minor, H. ovalis, Syringodium isoetifolium, Thalassodendron ciliatum, dan Thalassia hempricii. Kerapatan lamun tertinggi terdapat pada stasiun T2 dengan jenis lamun Thalassia hempricii yang berjumlah 139,6 tegakan/m². Sedangkan kerapatan lamun terendah yaitu pada stasiun T1 dengan jenis lamun C. rotundata dan jumlah total 0,4 tegakan/m². Persen penutupan lamun yang didapatkan memiliki rentang nilai 0,8-68%. Nilai Indeks Morisita yang didapatkan adalah id<1 pada semua stasiun, hal tersebut termasuk dalam kategori pola penyebaran acak.

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