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All Journal BULETIN OSEANOGRAFI MARINA Journal of Marine Research Jurnal Kelautan Tropis Jurnal HIDROPILAR Media Akuatika: Jurnal Ilmiah Jurusan Budidaya Perairan IPTEKIN : Jurnal Kebijakan Pembangunan dan Inovasi
Jusup Suprijanto
Program Studi Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Dipenogoro
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Economics, Econometrics & Finance Industrial & Manufacturing Engineering

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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. 
Biometrika Kerang Darah (Anadara granosa) Pada Tambak Budidaya Di Desa Menco Kecamatan Wedung Kabupaten Demak R., Rizky Imtihan; Hartati, Retno; 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 (310.464 KB) | DOI: 10.14710/jmr.v3i4.11426

Abstract

Kerang Darah (Anadara granosa) termasuk ke dalam kelas Bivalvia yang kebanyakan hidup di laut terutama di daerah litoral, dasar perairan yang berlumpur atau berpasir, tetapi dapat juga dibudidayakan di Tambak. Tujuan penelitian ini adalah untuk mengetahui Biometrika Kerang Darah (Anadara granosa ) pada 3 Tambak yang berbeda. 1200  sampel Kerang Darah  diambil dari 3 Tambakdi Desa Menco, Kecamatan Wedung, Demak selama bulan Januari sampai Maret 2014 dengan interval 2 minggu sekali untuk diamati pertumbuhan dan indeks kondisinya. Hasil penelitian ini berupa bentuk model pertumbuhan absolut atau mutlak panjang Kerang Darah (Anadara granosa) pada stasiun 1, 2, dan 3 yaitu = Lt = 12,9944 ( 1 - e –0.0713(t-0,492017)) , Lt = 11,21197 ( 1 - e –0,0618(t-0,756669)), dan Lt = 10,68319 ( 1 - e –0,0565(t-0,620325)). Model pertumbuhan absolut atau mutlak berat kerang darah pada Stasiun 1, 2 dan 3 yaitu = Wt = 13,4798 ( 1 - e –0,0716(t-0,485747)), Wt = 13,1795 ( 1 - e –0,0713(t-0,490326)), dan Wt = 13,1795 ( 1 - e –0,0713(t-0,490326)). Nilai indeks kondisi dominan kategori sedang (2,5 – 4,5) berjumlah 254 ekor (Stasiun 1), 206 ekor (Stasiun 2), dan 276 ekor (Stasiun 3) kemudian kategori gemuk (>4,5) berjumlah 133 ekor (Stasiun 1), 175 ekor (Stasiun 2), dan 87 ekor (Stasiun 3)
Studi Kandungan Logam Berat Pb, Cu, Cd, Cr Pada Kerang Simping (Amusium pleuronectes), Air Dan Sedimen Di Perairan Wedung, Demak Serta Analisis Maximum Tolerable Intake Pada Manusia Azhar, Husnan; 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 (188.451 KB) | DOI: 10.14710/jmr.v1i2.2017

Abstract

Wedung, Demak which have large potential of asian moon scallop (Amusium pleuronectes). This potential has leaded the increasing activities of fishing, industrial, and dense residential in Wedung. Those activities were thought to be one of the sources of heavy metals (Pb, Cu, Cd, Cr) accumulated in the simping. This study was aimed to determine the concentration of Pb, Cu, Cd, Cr in the A. pleuronectes, in the water and the sediment. Moreover, this study was also aimed to investigate the maximum weekly consumption A. pleuronectes which contained Pb, Cu, Cd, and Cr in Wedung waters area, Demak. The study was conducted in October-November 2011. The method used in this study was a study case method, while the purposive sampling method was used to determine the sampling locations. Sampling was conducted once every two week, with three repetitions. AAS (Atomic Absorbtion spectrophotometry), were used to analyze the heavy metal concentration, while the consumption of security analysis was used to analyze the MTI (Maximum Tolerable Intake). The range of the analysis results of Pb concentration in the scallop’s shells were 33,1362 – 35,0762 ppm, and 11,1272 – 13,0852 ppm in the sediments, while the concentration in the soft tissues and water, were not detected. The Cu concentration in the soft tissue were ranged from 8,9849 – 9,4659 ppm, where in the scallop’s shells were 11,9836 – 12,2358 ppm, water were 0,07 – 0,14 ppm, and in the sediments were 13,0624 – 17,6040 ppm. The Cd concentration in soft tissue were ranged from 5,9212 – 8,0136 ppm, scallop’s shell were 2,6195 – 5,0125 ppm, and water were 0,01 ppm at 2nd and 3rd samplings, while at the first sampling was not detected, whereas in the sediments the concentration ranged from 0,4694 – 0,7257 ppm. Cr concentration in the soft tissue were only detected in the third sampling with 0,7285 ppm, while in the scallop’s shells ranged from 1,9694 – 2,6924 ppm, and in the sediments were 0,9693 – 1,6933 ppm, while its concentration in water was not detected. Maximum weekly intake of scallop in Wedung water which are safe for consumption were 22,64 kg for Cu; 0,06 kg for Cd; and 5,76 kg of Cr per week for people with average body weight 60 kg, while the Pb concentration not detected.
Studi Bioekologi Kerang Simping (Amusium pleuronectes) di Perairan Semarang dan Kendal Nursalim, Haviz Rachman; Suprijanto, Jusup; Widowati, 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 (299.088 KB) | DOI: 10.14710/jmr.v1i1.1997

Abstract

Asian Moon Scallop (Amusium pleuronectes) is one of scallop species which catch as the secondary crops of the fishing activity. This condition need to understand his biological background, such as the relationship between length and weight, growth, condition index and gonad index. The research purpose is to identify the relationship between length and weight, growth, condition index and gonad index of the Asian Moon Scallop, collected from the Semarang and Kendal Waters. This research was carried out from June to July, 2011 in the Semarang and Kendal waters. Three times collections was done during the research period. A total of 594 individuals of Asian Moon Scallop were collected, which determined there shell length, height, thickness and the total weight. Measurement and observation processes were held in Biology Laboratory, Faculty of Fishery and Marine Diponegoro University, Semarang. The descriptive-explorative methods was used as the research method. While the purposive sampling was applied as the data collection method, and determined the research site. The Asian Moon Scallop growth was determined using the nisbi mothod. The relationship between length and weight, condition index and gonad index were also determined. The b constanta show the value of 3.070, 2.853 and 2.862, which show that the length and weight relationship of Asian Moon Scallop is isometric and alometric negative. The Asian Moon Scallop growth with nisbi method show an equation of 1 cm for the shell length, 0.5 cm for the height, 0.2 sm for the thickness and 5 gr for the total weight of shells. The condition index value of Asian Moon Scallop (A. pleuronectes) is approximately for about 36.01 % - 61.44 %, while the gonad index value is about 8.31 % - 12.09 %.
AKTIVITAS ANTI BAKTERI KITOSAN DARI CANGKANG KERANG SIMPING PADA KONDISI LINGKUNGAN YANG BERBEDA : KAJIAN PEMANFAATAN LIMBAH KERANG SIMPING (Amusium sp.) Sulistiyoningrum, Rina Setyowati; Suprijanto, Jusup; Sabdono, Agus
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.227 KB) | DOI: 10.14710/jmr.v2i4.3691

Abstract

Waste is one of the major problems in various countries in the world, one of which is the waste of marine products, for example clam shells. This waste can be processed into chitin and chitosan. Chitosan alone has a lot of benefits that have relatively high economic value, such as chitosan as a natural source antibacterial that can be effectively produced. Deacetylation degree of chitosan determined by using data from FTIR spectra and the value was 69.11349%. The results showed that there were soluble chitosan with 1% acetic acid. In the antibacterial test of chitosan on E. coli and S. aureus showed inhibition zone on agar medium. Chitosan provided large inhibition zones on 0.01 μg/disk and 0.02 μg/disk concentrations , however conditions factor of the media effected the growth of those bacteria. Bacteria E. coli bacterium was more sensitive to salinity than thah of S. aureus, while the S. aureus bacterium is more sensitive to pH than that of E. coli bacterium.
Biomonitoring Kandungan Logam Berat Timbal (Pb) dalam Air, Sedimen dan Kerang Ceplos (Macridiscus sp.) Serta Analisis Angka Keamanan Konsumsi yang diambil dari Perairan Tambak Lorok, Kota Semarang Tielman, Eduard Meirenno; Suprijanto, Jusup; Widowati, 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 (694.72 KB) | DOI: 10.14710/jmr.v7i4.25921

Abstract

ABSTRAK : Logam berat Timbal (Pb) yang diduga berasal dari aktivitas industri di sekitar perairan Tambak Lorok akan mempengaruhi kualitas perairan dan biota yang ada di dalamnya, yaitu Kerang Ceplos (Macridiscus sp.). Tujuan dari penelitian ini adalah untuk menganalisis kandungan logam berat Timbal (Pb) dalam air, sedimen dan Kerang Ceplos (Macridiscus sp.) serta angka keamanan konsumsi. Sampel uji diperoleh dari Perairan Tambak Lorok, Semarang dan diujikan di Balai Besar Teknologi Pencegahan Pencemaran Industri. Metode penelitian adalah metode survey. Pengambilan berdasarkan periode waktu, yaitu bulan September 2015 (pendahuluan dan hanya kerang saja yang diambil), Desember 2015 dan Februari 2016. Analisis logam berat Timbal (Pb) dilakukan dengan menggunakan metode AAS (Atomic Absorption Spectophotometry). Analasis Angka Keamanan Konsumsi menggunakan rumus perhitungan MWI (Maximal Weekly Intake) and MTI (Maximal Tolerable Intake). Hasil penelitian menunjukkan bahwa kandungan logam berat Timbal (Pb) dalam air, sedimen dan Kerang Ceplos (Macridiscus sp.) belum melewati baku mutu. Kandungan logam berat Timbal (Pb) dalam air pada bulan Desember 2015 dan Februari 2016 menunjukan angka < 0,003 mg/l, dalam sedimen sebesar 0.197 mg/Kg dan 0.124 mg/Kg, dalam Kerang Ceplos (Macridiscus sp.) sebesar 0.18 mg/kg dan < 0.1 mg/kg. Angka Keamanan Konsumsi Kerang Ceplos (Macridiscus sp.) yang terpapar logam berat Timbal (Pb) pada Desember 2015 dan Februari 2016 dengan nilai MWI logam berat Pb 1,125 mg/orang (berat badan 45 kg), yaitu 6.25 dan 11.25 kg/minggu/orang kemudian untuk berat badan 60 kg, yaitu 8.34, 15 kg/minggu/orang dengan nilai MWI 1,5 mg/orang. ABSTRACT : Heavy metal Lead (Pb) which suppose sourced from industry activity around Tambak Lorok Water Area, can impact to those waters area, also organisms Kerang Ceplos (Macridiscus sp.). This study was to analyze heavy metal concentration Lead (Pb) in the waters, sediment and Kerang Ceplos (Macridiscus sp.) and safety Number of total Intake of Kerang Ceplos (Macridiscus sp.). Research sample was taken from Tambak Lorok Water Area. Research method was Survey Method. Analysis method of heavy metal Lead (Pb) used AAS (Atomic Absorption Spectophotometry) method. safety number of total intake by using MWI (Maximal Weekly Intake) and MTI (Maximal Tolerable Intake). The result of this research showed that heavy metal concentrate in waters, sedimen and Kerang Ceplos (Macridiscus sp.) was not exceed of quality standard yet. The number of heavy metal concentrataion Lead (Pb) in Kerang Ceplos (Macridiscus sp.) for 2 (two) different months were 0.18 mg/Kg for December 2015 and < 0.1 mg/Kg for February 2016. The numbers of the water were < 0.003 mg/L in December 2015 and February 2016. for the sediment were 0.197 mg/Kg in December 2015 and 0.124 mg/Kg in February 2016. The number of MTI for Kerang Ceplos (Macridiscus sp.) in two differents month were 6.25 and 11.25 kg/week/person for body weight of 45 kg with MWI number of  heavy metal Pb (1.125 mg/Kg). Then 8.34, 15 kg/week/person for body weight of 60 kg with MWI number of  heavy metal Pb (1.5 mg/Kg).
Struktur Komunitas Krustasea: Decapoda Pada Ekosistem Mangrove Di Kecamatan Genuk, Semarang Putri, Denanda Christina; Suprijanto, Jusup; 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 (547.46 KB) | DOI: 10.14710/jmr.v7i1.25881

Abstract

ABSTRAK : Mangrove merupakan sumber makanan potensial dalam berbagai bentuk bagi semua biota yang hidup di ekosistem mangrove. Kondisi ekosistem  mangrove  yang  terganggu dapat menyebabkan penurunan fungsi ekologis ekosistem mangrove. Wilayah pesisir Semarang dimanfaatkan untuk berbagai aktivitas manusia seperti tempat industri, pertambakan, pabrik dan dapat juga sebagai tempat pembuangan limbah. Oleh karena itu perlu adanya penelitian mengenai  struktur komunitas krustasea pada ekosistem mangrove yang berbeda. Tujuan penelitian ini adalah mengkaji komposisi dan kelimpahan krustasea yang berada di kawasan vegetasi mangrove Kecamatan Genuk, Kota Semarang pada lokasi yang berbeda. Penelitian ini menggunakan metode deskriptif eksploratif, sedangkan metode penentuan lokasi menggunakan metode purposive sampling. Materi yang digunakan dalam penelitian ini adalah sampel krustasea dan kerapatan mangrove. Penelitian dilaksanakan pada bulan Juni - Agustus 2016. Analisis sampel penelitian dilakukan di Laboratorium Teknik Lingkungan Fakultas Teknik, Universitas Diponegoro. Hasil penelitian yang diperoleh adalah Krustasea yang ditemukan pada penelitian ini terdapat 11 spesies yang terdiri dari 5 famili dalam 2 infra ordo yang berbeda. Infraordo Brachyura yang paling banyak ditemukan dengan jumlah 4 famili. Sedangkan untuk infraordo Anomura ditemukan satu famili. Kelimpahan tertinggi terdapat pada Stasiun IV sebesar 0,372 ind/100 m2.Secara keseluruhan nilai Indeks Keanekaragaman masuk dalam kategori sedang (H’=1,57-3,02). Indeks Keseragaman termasuk dalam kategori tinggi (E= 0,93-0,99). Indeks Dominansi termasuk dalam kategori tidak ada dominansi (C=0,13-0,33). Pola sebaran jenis yang mendominasi adalah pola sebaran acak. ABSTRACT : Mangrove is a potential food source  for organisms which live in mangrove ecosystem. Disrupted mangrove ecosystem can cause a decrease in  ecological function. Semarang coastal areas are used for various human activities such as industrial sites, farms, factories and also as a waste disposal site. Therefore, research on the community structure of crustaceans in different mangrove ecosystem need to be conducted. The purpose of this study is to assess the compisition and abundance of crustaceans  in the mangrove vegetation area at Genuk subdistrict, Semarang in different locations to determine the abundance of crustaceans in different ecosystem. This research used descriptive explorative, while the method of determining the locations using purposive sampling method. The materials used in this study were sample crustaceans and mangrove density. The research was conducted in June-August 2016. The samples were analyzed at the Laboratory of Environmental Engineering, Faculty of Engineering, University of Diponegoro. The crustaceans found in this study were as many 11 species consisting of 5 families in two different infra order. Infra order Brachyura was the most commonly found with a number of 4 families. While there was only one family which found from infra order Anomura. The highest abundance found in Stastion IV with the result 0.372ind/100 m2. Overall, the Diversity Index value in the category as medium (H’=1,57-3,02). Uniformity Index was included in the high category (E= 0,93-0,99). Dominance Index included in the category of no dominance (C=0,13-0,33). The distribution pattern of dominant species is a random distribution pattern.
Aktivitas Antioksidan Kitosan yang Diproduksi dari Cangkang Kerang Simping (Amusium sp) dan Kerang Darah (Anadara sp) Cakasana, Nadya; Suprijanto, Jusup; Sabdono, Agus
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (263.917 KB) | DOI: 10.14710/jmr.v3i4.8360

Abstract

Limbah cangkang kerang simping dan kerang darah di Semarang merupakan jenis limbah hasil perikanan yang pengolahannya belum maksimal sehingga masih menjadi masalah lingkungan. Penelitian ini bertujuan untuk mengetahui kualitas kitosan dua bagian cangkang kerang simping dengan warna berbeda dan cangkang kerang darah yang dapat dilihat dari derajat deasetilasinya serta mengetahui aktivitas antioksidan dari kitosan ketiga jenis cangkang tersebut.Pembuatan kitosan dilakukan dengan proses demineralisasi, deproteinasi, dan deasetilasi. Uji derajat deasetilasi dilakukan dengan metode spektroskopi FTIR dan uji aktivitas antioksidan dilakukan dengan metode DPPH. Uji proksimat kitosan setiap cangkang dilakukan untuk memperoleh data pendukung. Penelitian ini dilaksanakan pada bulan April - Mei 2014. Sampel cangkang diambil dariTambak Lorok, Semarang. Hasil penelitian menunjukkan bahwa derajat deasetilasi kitosan cangkang simping merah sebesar 66,27%, kitosan cangkang simping putih sebesar 71,37%, sedangkan pada kitosan cangkang kerang darah sebesar 69,72%. Hasil uji DPPH menunjukkan persentase negatif pada masing-masing ketiga sampel kitosan cangkang yang ditandai dengan tidak adanya perubahan warna pada DPPH. Berdasarkan hasil penelitian tersebut dapat disimpulkan bahwa ketiga sampel kitosan cangkang tidak memiliki aktivitas antioksidan sebagai senyawa penangkal radikal bebas.
Stimulasi Fission Reproduksi Aseksual Teripang Holothuria atra dan Teripang Holothuria impatiens Nugroho, David; Hartati, Retno; 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 (124.813 KB) | DOI: 10.14710/jmr.v1i2.2033

Abstract

Natural production of sea cucumbers in decline, it is because of overfishing and use without any attempt for cultivation. There are several ways for the provision of seeds, one with a reproduction. Sea cucumbers can reproduce sexually and asexually. Sexual reproduction involves the sea cucumber sperm and egg cells, and that asexual reproduction through fission technique. Fission is the process of cleavage of the specimen the anterior, middle and posterior to the sea cucumber. The third part will grow into new individuals after each specimen was able to grow the missing part. The research was conducted on April-June 2012 at Bandengan, Jepara with the aim of analyzing the ability of the sea cucumber Holothuria fission reproduction impatiens and Holothuria atra and observe individual performance and survival of fission results from the fission through the stimulation of 1, 2, and 3 fission plane in sea cucumber Holothuria atra and Holothuria impatiens for the supply of seed. The method used was field experimental research. The results of this research showed stimulation of fission with 1 fission plane is faster than 2 fission plane and 3 fission plane. H. atra to fission faster than H. impatiens. On the stimulation of 2 fission plane, the anterior fission faster than the middle or posterior. The results of regeneration of the species H. impatiens are not able to regenerate. The posterior regenerate faster than the anterior and middle. The posterior regenerate faster than the anterior and middle. In general, sea cucumbers which were going through the stimulation of fission stage, wound closure phase, the stage of regeneration, which in turn will form the mouth and anus on the part of the divide.
Co-Authors Agus Sabdono Al Bar Rauuf Mulki Ali Ridlo Arifin, Muhammad Sholeh Bambang Yulianto Chrisna Adhi Suryono Christtenson Purba David Nugroho Effendy, Irwan Junaedi Garini, Bonita Nindya Hanif, Kharisma Haidar Hanifah, Husna Haviz Rachman Nursalim Husnan Azhar Ibnu Pratikto Irwan Effendi Ita Riniatsih Ita Widowati Kalangie, Dimas Judah Mozes Laksono, Ollivia Brylliant Munasik Munasik Nadya Cakasana Nirwani Soenardjo Pramudito, Wisnu Adjie Pravitasari, Anggi Karina Putri, Denanda Christina Rahayu, Shafira Primasty Ramadhani, Aulia Dessy Retno Hartati Rina Setyowati Sulistiyoningrum Riza, Subkhan Rizky Imtihan R., Rizky Imtihan Salsabila, Nada Saridu, Siti Aisyah Satriawan, Erian Febri Setiyadi, Johar Sri Redjeki Subagiyo Subagiyo Sudarmawan, Wisnu Satriyo Sulistyo, Anggita Al Haris Sumardana, I Wayan Eka Sutrisno Anggoro Taufiq-Spj, Nur Tielman, Eduard Meirenno Widodo S Pranowo Wirawan, Kadek Fendi