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Jurnal Perikanan Universitas Gadjah Mada

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Published by Universitas Gadjah Mada

ISSN : 08536384 EISSN : 25025066 DOI : -

Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

Jurnal Perikanan Universitas Gadjah Mada are published to promote a critical review of the various investigative issues of interest in the field of fisheries between the researchers, academics, students and the general public, as a medium for communication, dissemination, and utilization of wider scientific activities.

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Articles 460 Documents

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SEBARAN TEMPORAL FAKTOR KONDISI KEPITING BAKAU (Scylla serrata) DI PERAIRAN PANTAI MAYANGAN,KABUPATEN SUBANG, JAWA BARAT Agus A. Sentosa; Amran R. Syam
Jurnal Perikanan Universitas Gadjah Mada Vol 13, No 1 (2011)
Publisher : Universitas Gadjah Mada

Scylla serrata merupakan salah satu jenis kepiting bakau yang dominan tertangkap di perairan Pantai Mayangan, Subang. Penelitian ini bertujuan untuk mengetahui sebaran temporal kondisi kepiting bakau (S. serrata) di perairan Pantai Mayangan, Subang ditinjau dari hubungan lebar karapas-berat dan faktor kondisinya. Data lebar karapas dan berat kepiting bakau dikumpulkan melalui enumerator sejakJanuari hingga November 2009 dan survei lapang dilakukan pada bulan April, Juni, Agustus dan November 2009 untuk validasi data. Hasil menunjukkan nilai b antara kepiting jantan (2,219 – 2,835) dan betina (1,264-2,352) berbeda nyata (P<0,05). Keduanya memiliki pola pertumbuhan allometrik negatif dengan nilai b kepiting jantan cenderung lebih besar dibandingkan betina. Kisaran nilai K dan Kn kepiting jantan lebih lebar dibandingkan betina sehingga kepiting jantan cenderung lebih gemuk. Sebaran temporal faktor kondisi kepiting bakau diduga terkait dengan siklus reproduksinya. Nilai faktor kondisi meningkat sejak bulan Juni hingga puncaknya pada bulanOktober yang diduga pada saat tersebut merupakan puncak musim pemijahan kepiting bakau di perairan Pantai Mayangan.

STUDI KANDUNGAN LOGAM BERAT PADA BEBERAPA JENIS KEKERANGAN DARI PERAIRAN PANTAI DI KABUPATEN FLORES TIMUR Lisa F. Indriana; Sutrisno Anggoro; Ita Widowati
Jurnal Perikanan Universitas Gadjah Mada Vol 13, No 1 (2011)
Publisher : Universitas Gadjah Mada

Studi kandungan logam berat (Pb, As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Se, V, Zn dan Ag) dilakukan pada beberapa jenis kekerangan di perairan pantai Kabupaten Flores Timur. Kabupaten Flores Timur mempunyai sumberdaya hayati laut yang melimpah, terutama pada ikan dan kekerangan. Dalam rangka mendukung kegiatan biomonitoring lingkungan perairan pesisir dan laut, salah satu kegiatan yang dapat diimplementasikan adalah dengan melakukan penelitian kandungan logam berat pada beberapa jenis kekerangan. Pengambilan sampel biota dilakukan pada bulan Oktober 2009. Analisis logam berat dilakukan dengan metode ICP-MS (Inductively Coupled Plasma Mass Spectroscopy) di Laboratorium Pusat Analisis Université de La Rochelle, Prancis. Logam-logam berat yang diobservasi adalah Pb, As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Se, V, Zn dan Ag. Penelitian ini dilakukan di kawasan mangrove Kabupaten Flores Timur, meliputi, Mulutbahang, dimana ditemukan jenis kerang Isognomon ephippium, dan di Lewobunga ditemukan jenis kerang Crassostrea sp. Hasil penelitian menunjukkan, bahwa Zn memiliki kandungan tertinggi dibanding logam-logam berat lain, dimana nilainya masing-masing adalah, 1686,83 µg/g berat kering pada jenis I. ephippium dan 703,88 µg/g berat kering pada Crassostrea sp. Sedangkan Pb merupakan logam berat dengan kandungan terendah, dengan nilai masing-masing 0,26 µg/g berat kering pada I. ephippium dan 0,15 µg/g berat kering pada Crassostrea sp.

DINAMIKA POPULASI UDANG DOGOL (Penaeus indicus H.Milne. Edwards 1837) DI LAGUNA SEGARA ANAKAN CILACAP JAWA TENGAH Suradi W. Saputra
Jurnal Perikanan Universitas Gadjah Mada Vol 10, No 2 (2008)
Publisher : Universitas Gadjah Mada

The research of population dynamic of Penaeus indicus was held on Segara Anakan Lagoon, Cilacap Central Java. This research aimed to study of the growth, length of first capture (Lc), and mortality of Penaeus indicus. The research were carried out from July to December 2004 using survey method, and the samples were collected by sistematic sampling method. Data was analyzed using ELEFAN in FiSAT II software. The result show that the first capture of carapace length was 20.4 mm. Growth pattern of P. Indicus was negative allometric (b = 2.44). Maximum carapace length in sample was 33.5 mm and L∞ = 35.7 mm, and index of curve growth (K) = 1.26 per year and to = - 0.0438 year. Time of inflection growth rate point was 0.438 year, on carapace length 16 mm. Total mortality (Z) was 3.95/years, natural mortality was 2.6/years and fishing mortality was 1.35/years, hence mortality was dominated by natural mortality.

KEGIATAN PENANGKAPAN IKAN DI SUAKA PERIKANAN SUNGAI SAMBUJUR DAERAH ALIRAN SUNGAI BARITO BAGIAN TENGAH, KALIMANTAN SELATAN Prasetyo, Dadiek
Jurnal Perikanan Universitas Gadjah Mada Vol 8, No 2 (2006)
Publisher : Universitas Gadjah Mada

The objectives of this research were to provide data on fishing gears and methods in fisheries reserve of Sungai Sambujur, South kalimantan. Data were collected by purposive sampling survey method. The result showed that there were 6 fishing gears operated in Sungai Sambujur fisheries reserve: hampang, pengilar, lukah, luntak, rengge and kawat. Fishing gear which was able to catch fish with the most variety was hampang, followed by luntak, rengge, lukah, pengilar and kawat. Fish catching season was from May to December and July was a peak of catching season. On the other hand, the height of water level occured from 2 to 7 m.

PEMANFAATAN LAMPU LISTRIK UNTUK PENINGKATAN HASIL TANGKAPAN PADA BAGAN APUNG TRADISIONAL DI PELABUHAN RATU Zamdial Ta’alidin
Jurnal Perikanan Universitas Gadjah Mada Vol 6, No 1 (2004)
Publisher : Universitas Gadjah Mada

The objectives of this research were to know the effect of different light sources on the total catch, species composition and size of fish captured by traditional lift net. This research was conducted at the Pelabuhan Ratu Waters,West Java.Fishing experiment was conducted for 12 hours each night, for 5 night. Fishing operation was conducted alternately for two hours using kerosene lamp and electric lamp.The light illumination, temperature, salinity and water current were measured after setting the gear, while the catch data were measured after hauling. The maximum light penetration of kerosene lamp was able to reach 9 m depth (at the center of lift net), 8 m (at the middle of lift net) and 6 m (at the corner of lift net). In addition, by using kerosene and electric lamps, the light penetration was able reach 11 m (at center and midlle of lift net) and 12 m (at the corner of lift net).The total catch of lift net using kerosene lamp was 85.12 kg (9,086 fishes) comprise of 12 spesies with sizes 5.3 – 42.7 cm, while the total catch using combination of kerosene and electric lamps was 148.67 kg (12,685 fishes) comprise of 18 spesies with sizes 5.95 – 52.78 cm.The results showed, that the combination of kerosene and electric lamps was able to increase the total catch.

KAJIAN PRANATA MANGSA SEBAGAI PEDOMAN PENANGKAPAN IKAN DI SAMUDRA HINDIA SELATAN JAWA Suwarman Partosuwiryo
Jurnal Perikanan Universitas Gadjah Mada Vol 15, No 1 (2013)
Publisher : Universitas Gadjah Mada

Pranata mangsa is one form of local wisdom and cultural heritage whisch is slowly forgotten and should remain preserved and developed using scientiﬁc principles. This study was aims to assess the suitability of the pranata mangsa that have been used in the ﬁeld, examines the differences in the catch per effort and incomes between ship captain who use the pranata mangsa, who only occasionally use the pranata mangsa and do not use pranata mangsa. Primary and secondary data collection was conducted using a survey method. Determination of the respondents conducted by proportional stratiﬁed random sampling. The primary data obtained from interviews with respondents in the form of data signs of nature, types of ﬁsh cathced, ﬁshing gear, ﬁshing trip and production data. Secondary data were obtained from the reference form the provincial ﬁsheries statistics (East Java, Yogyakarta, Central Java), Fishery Port (Prigi, Sadeng, Cilacap) and Bakosurtanal. The study was conducted in the Indian Ocean in the southern of Java. The results showed that the natural signs of pranata mangsa that have been used was suitable in Prigi and Cilacap and were less suitable for Sadeng. The catch per unit effort from ship that did not used pranata mangsa was higher (5829.14 kg/ship/year) than ship that used the pranata mangsa (5219.79 kg/ship/year) and ship that only occasionally used the pranata mangsa (4,890.74 kg/ship/year). Revenue of ship that used pranata mangas (IDR. 196,282,199.00/ships/year) was higher than the income from ship that did not used the pranata mangasa (IDR. 131,145,173.00/ ships/year) and from ship that only occasionally using institutions prey (IDR. 111,405,847.00/ships/year). Pranata mangsa that had been used need improvements to be used in the Indian Ocean in the Southern of Java. Improved pranata mangsa need to be socialized in order to increase catch per unit effort and income of the ship captain, as well as the need for additional of more suitable ﬁshing gear.

ANDROGENESIS DIHASILKAN DARI BERBAGAI LAMA IRADIASI ULTRAVIOLET DAN BERBAGAI WAKTU KEJUT PANAS PASCA FERTILISASI PADA TELUR IKAN NILEM (Osteochilus hasselti CV) Tiwuk Windari
Jurnal Perikanan Universitas Gadjah Mada Vol 15, No 1 (2013)
Publisher : Universitas Gadjah Mada

Androgenesis, biotechnology involving the production of the whole individual chromosomes that derived from the male brood stock as efforts to meet the quality of brood stock fulﬁllment. Androgenesis involves two phases, the inactivation of the genetic material of eggs, can be irradiated using ultraviolet (uv) rays and diploidization of zygote stage using heat shock at 40oC. The study reported androgenesis of shark minnow ﬁsh through two stages of various doses of UV inactivation, followed by the diploidization at various lengths of times of heat shock at 40oC after fertilization. Objectives of the research were to determine: (1) the effectiveness of inactivation of TUV 254 nm phillips 15 watt with 15 cm distance using various time of irradiation (as the dose) i.e: 1, 3, or 5 minutes at shark minnow ﬁsh and 2) the effectiveness of diploidization by heat shock at 40oC for 90 seconds at the various of time i.e: 15. 20 or 25 minutes after fertilization. This experimental study was complete randomized block design, consisting of 13 treatment, i.e: 9 treatment androgenesis using UV irradiation (1, 3 or 5 minute) and then followed by heat shock at 15, 20 or 25 minutes after fertilization (A1 - A9), and 4 treatment as a control that consisting of 1 positive control, ie, without irradiation and without heat shock (K0) and 3 negative controls were irradiated but not heat shock (K1, K2, K3). Variables that be observed are the eggs fertilization, the degree of hatching, the percentage of haploid larvae, the percentage of juvenile survival rate after 28 days of culture. Data were analyzed with one way of variance (ANOVA) using SPSS version 16.0 of Windows Software. The results showed that the UV irradiation dose was effectively activating the genetic material of shark minnow ﬁsh, where the most effective treatment was at 5 minutes (9916 J/m2). It proved that heat shock at 40°C for 90 seconds was effective to prevent the ﬁrst embryonic mitosis diploid androgenesis of shark minnow ﬁsh and the most effective treatment was A9 with irradiation for 5 minute and heat shock at 40°C for 90 seconds at 25 minutes after fertilization.

ANALISIS USAHA TAMBAK GARAM DI DESA GEDONGMULYO KECAMATAN LASEM KABUPATEN REMBANG Ragil P. Andriyano; Suadi Suadi; Supardjo S. Djasmani
Jurnal Perikanan Universitas Gadjah Mada Vol 15, No 2 (2013)
Publisher : Universitas Gadjah Mada

The purpose of this study was to determine the cost structure dan income of traditional salt farming at Gedongmulyo Village, Sub District of Lasem, Rembang. All salt farmers, account for 30 owners were selected as respondents and interviewed. The study indicated that respondents have varied farm land ranging from 750 m2 to 220,000 m2. The cost and revenue analysis were using farm land that was converted into one hectare per year. The total cost of salt farming was counted for Rp. 35,267,668 which mostly allocated for labor cost, account for Rp. 20,894,631 (59,24%). The total revenue of the business was Rp. 53,076,281 per hectare, comprises of revenue from salt production, amount of Rp. 41,308,681 and milkﬁ sh production account for Rp. 11,767,600. Therefore, farmer income was calculated at Rp. 17,808,613 per hectare. The study also indicated that R/C ratio was 1.50, which means that the business was worth to be developed and expanded. Nevertheless, there were few challenges, including the issue on climate variability, salt market and marketing, and business management. Appropriate policies and supporting programs are need to ensure the sustainability of the people business.

APLIKASI MODEL DINAMIK DAMPAK EUTROFIKASI DAN SEDIMENTASI BAGI PENGENDALIAN KERUSAKAN TERUMBU KARANG DI PERAIRAN SULAWESI SELATAN Chair Rani; M. Natsir Nessa; Jamaluddin Jompa; Syamsuddin Thoaha; Ahmad Faizal
Jurnal Perikanan Universitas Gadjah Mada Vol 16, No 1 (2014)
Publisher : Universitas Gadjah Mada

The aplication of dynamic model to describe the effect of eutrophication and sedimentation on coral reefs damage in a wider scope. The trial were performed in two main areas of coral reefs in South Sulawesi, namely in Spermonde Archipelago and in Sembilan Archipelago in Bone Bay. Retrieval of data include measurements of water quality (nitrate and phosphate concentration) and the rate of sedimentation. While collecting of ecological data, namely macroalgae cover, coral reef cover, and species of herbivores and its abundance. Data was collected on monthly for 4 months at six stations/islands. The data was taken at two points on each island as replicates. Oceanographic data were taken every month, while the ecological data were taken at the end of the study. Nutrients concentration (nitrat and phosphat) and sedimentation rate were measured in laboratory. The result of the model test showed that the developed model is valid and broad-spectrum and therefore can be applied to other areas already impacted by eutroﬁ cation and sedimentation. The results of the execution of the model shows that all stations on the island leads Phase shift, namely the dominance of macroalgae cover in the future (about 2-4years in the future).

Susceptibility of Tiger Shrimp (Panaeus monodon) against Vibrio harveyi on various Molt Stage and Osmolarity Gina Saptiani; Catur A Pebrianto; Agustina Agustina; Esti H Hardi
Jurnal Perikanan Universitas Gadjah Mada Vol 18, No 1 (2016)
Publisher : Universitas Gadjah Mada

Vibrio harveyi causes disease of tiger shrimp (Penaeus monodon) aquaculture in East Kalimantan. This research aimed to investigate the susceptibility of tiger shrimp on various molt stage and osmolarity, and determine the salinity (osmolarity) of water that can reduce the risk of V. harveyi attack. Shrimp age of 1.5 months was maintained in 4 aquariums with salinity 29.72 ‰, 26.07 ‰, 22.35 ‰ and 17.79 ‰, then challenged with V. harveyi. After 7 and 14 days, osmolarity of haemolimph was observed with automatic osmometer and Digital Roebling Osmometer. The susceptibility of tiger shrimp to V. harveyi was evaluated based on clinical symptoms, pathological anatomy of shrimp and density of V. harveyi (TPC) in the hepatopancreas. Osmolarities of shrimp haemolymph at premolt, postmolt, and intermolt stage were 575.30-812.60; 534.00-788.80, and 566.20-795.60 mOsm/l H2O, respectively. The lowest bacterial content in the premolt stage was maintained at a salinity 22.35 ‰, and the highest one was obtained in postmolt stage at 29.72 ‰. The molting and postmolt stage were the most susceptible to V. harveyi attacks. The results suggested that the shrimp maintained at 22.35 ‰ salinity was less susceptible to V. harveyi.

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