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All Journal JOURNAL OF COASTAL DEVELOPMENT Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Jurnal Kelautan Tropis Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan PENA AKUATIKA : JURNAL ILMIAH PERIKANAN DAN KELAUTAN Sewagati: Jurnal Pengabdian Masyarakat Indonesia Safari : Jurnal Pengabdian Masyarakat Indonesia
Siti Rudiyanti
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Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Languange, Linguistic, Communication & Media Public Health Social Sciences Other

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APLICATION OF CHITOSAN FOR WATER QUALITY AND MACROBENTHIC FAUNA REHABILITATION IN VANNAMEI SHRIMPS (LITOPENAEUS VANNAMEI) PONDS, NORTH COAST OF SEMARANG, CENTRAL JAVA - INDONESIA R. Ruswahyuni; Agus Hartoko; Siti Rudiyanti
JOURNAL OF COASTAL DEVELOPMENT Vol 14, No 1 (2010): Volume 14, Number 1, Year 2010
Publisher : JOURNAL OF COASTAL DEVELOPMENT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (481.932 KB)

Abstract

Chitosan was widely known as natural food preservative such as noodle, meat ball, soy-tofu, wide variety offresh vegetables, fruits, meat and fish products, etc. Chitosan is a non-toxic substances, has no side effect ashuman food and was made from the shell of shrimps (Penaeidae), or swimming crabs (Portunus pelagicus).Chitosan is primarily a polysacharids, with β-1,4-2 amino-2-deoxy- β- D-glucopyranose. The biopolymerhas various noble functional characters such as anti-moth, anti-bacterial, coagulating agent for suspension,or heavy metals. This substance had been examined in the Lab of Natural Product, Diponegoro Universityand give a significant effect as bacteriostatic and bactericides for pathogenic bacteria such as Salmonela.sp;Pseudomonas, E.coli, B.subtilis, S.aureus, P.aeruginosa. In the study, liquid chitosan (200 ppm) was used asanti- harmful/ pathogenic bacteria in the brackish water pond so that can eliminate and control the bacterialor virus outbreak which so far is the main problems in the fish and shrimp culture activities. The use ofchitosan in the brackish water ponds was carried out at a semi-traditional ponds at Mangkang Kulon northSemarang coastal area. The experiment had significantly decrease the suspended solid or increase watertransparency, and the organic content ( by 5 %) of the bottom susbtrate. Increase the abundance ofimportant macro-benthic organism such as Polychaeta (7-fold) as important natural feed for the cultured fishand shrimp as well as increase the diversity index of total macro-benthic organism. Decrease the growth ofdisease vector benthic organism such as Cherithidae (Gastropods) by 24.5% . With the application ofchitosan had significantly prevent the outbreak of fish and shrimp disease and increase up to 80 % thesurvival rate of Vanamae, as well as tiger shrimp Penaeus monodon, and polkadot grouper (Cromileptes,sp)in another field application.
KUALITAS PERAIRAN SUNGAI BANGER PEKALONGAN BERDASARKAN INDIKATOR BIOLOGIS Siti Rudiyanti
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 4, No 2 (2009): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (169.488 KB) | DOI: 10.14710/ijfst.4.2.46-52

Abstract

ABSTRAKPembuangan limbah pabrik/industri, pertanian, maupun limbah domestik dapat menyebabkan degradasi kualitas air. Kualitas air dapat ditentukan melalui studi analisis biologi menggunakan biota akuatik fitoplankton sebagai bioindikator. Penelitian dilaksanakan di sungai Banger Pekalongan pada bulan Agustus - September 2006, bertujuan menilai kualitas perairan berdasarkan indikator biologis. Stasiun penelitian berjumlah 3 stasiun, stasiun A adalah daerah pangkal sungai Banger yang merupakan percabangan dan mendapatkan masukan air dari sungai Pekalongan, dimana di sekitar DAS Pekalongan terdapat aktivitas industri tekstil skala rumah tangga, stasiun B merupakan daerah pembuangan limbah beberapa industri tekstil, dan stasiun C adalah daerah sesudah area industri tekstil. Parameter biologi yang diukur meliputi Indeks Keanekaragaman (H`), Indeks Kemerataan (E), dan Koefisien Saprobik (X). Secara umum proporsi terbesar penyusun komunitas fitoplankton adalah kelas Bacillariophyceae dan Chlorophyceae. Kelimpahan individu fitoplankton berkisar antara 8535 - 22.972 individu/L. Indeks keanekaragaman berkisar antara 1,945 - 2,540 dan koefisien saprobik berkisar antara 0,17 - 1,31. Berdasarkan pendekatan indeks keanekaragaman dan koefisien saprobik, tingkat pencemaran dan kualitas perairan sungai Banger termasuk dalam kategori tercemar ringan sampai sedang.Kata kunci : Fitoplankton, indeks keanekaragaman, koefisien saprobik, kualitas airABSTRACTDisposal wastes from industrial, agricultural and domestic could degrade water quality. Water quality can be assessed by biological analysis using aquatic biota as a bio-indicator. Research took place at Banger River Pekalongan on August to September 2006, with the aims to examine water quality based on biological indicators. There are three research stations : station A is at the upland of the river where intake waters is from a branch of Pekalongan river in catchment’s areas of home based textile industries. Station B is in surrounding area where the textile industries dispose their waste; and station C is in the following area after the textile industries. Biological parameters that be calculated include diversity index, evenness index and saprobic coefficient. In general the biggest proportion of phytoplankton community is from class of Bacillariophyceae and Chlorophyceae. Phytoplankton individual abundance is around 8535 to 22.972 indv/l. Diversity index is around 1.945 to 2.540 and saprobic coefficient is 0.17 to 1.31. Based on diversity index and saprobic coefficient approaches, pollution level and water quality of the Banger River is categorized in little to middle pollution.Key Word : Phytoplankton, diversity index, saprobic coefficient, water quality
Potensi Rumput Laut Eucheuma sp. Terhadap Kepadatan Fitoplankton Chlorella sp. Ria Azizah; Indrihastuti Sulistianingtiyas; Delianis Pringgenies; Siti Rudiyanti
Jurnal Kelautan Tropis Vol 18, No 3 (2015): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (289.59 KB) | DOI: 10.14710/jkt.v18i3.530

Abstract

Chlorella sp. merupakan sumber makanan bagi ikan dan udang. Untuk menumbuhkan, Chlorella sp. maka diperlukan media kultur dengan nutrien yang baik. Eucheuma sp. merupakan rumput laut yang mengandung mineral - mineral yang bermanfaat bagi pertumbuhan Chlorella sp. Pemberian ekstrak Eucheuma sp. diharapkan dapat mendukung pertumbuhan Chlorella sp. Tujuan dilakukan penelitian untuk mengetahui pengaruh ekstrak Eucheuma sp. terhadap kepadatan Chlorella sp. dan konsentrasi terbaik dari ekstrak Eucheuma sp. yang menghasilkan kepadatan Chlorella sp. yang tertinggi. Penelitian ini dilaksanakan pada bulan Januari - Maret 2005 di Laboratorium Bioteknologi dan Eksplorasi Laut, Teluk Awur, UNDIP, Jepara dan Laboratorium Jurusan Perikanan, UNDIP, Semarang. Materi yang digunakan yaitu ekstrak Eucheuma sp., Chlorella sp. dan media kultur. Metode yang digunakan adalah eksperimental laboratories. Konsentrasi ekstrak Eucheuma sp. yang digunakan adalah : A (10 mg/L); B (100 mg/L); C (200 mg/L); D (300 mg/L); E (400 mg/L); F (500 mg/L); G ( tanpa pemberian ekstrak Eucheuma sp.).Hasil penelitian menunjukkan perlakuan D (300 mg/L) menghasilkan kepadatan Chlorella sp. tertinggi pada puncak populasi, yaitu 6,293 log sel/mL dan pada akhir populasi, yaitu 6,012 log sel/mL dengan konstanta pertumbuhan spesifik sebesar 0,161.Kata kunci: Kepadatan, Chlorella, EucheumaChlorella sp. is the source of food to prawn and fish. In order to grow Chlorella sp. so need a culture media with a good nutrient. Eucheuma sp. is a seaweed it cantains benefit minerals for the growth of Chlorella sp. The giving of Eucheuma sp. it is to be hoped to support the the growth of Chlorella sp. This research is aimed to know the effect of Eucheuma sp. extract to density of Chlorella sp. and the best concentration of Eucheuma sp. extract produce the highest density of Chlorella sp. This research was conducted in January – March 2005 at the Laboratory of Biotechnology and Marine Exploration, Teluk Awur, UNDIP, Jepara and Laboratory of Fisheries Department UNDIP, Semarang. Materials used in this research consisted of Eucheuma sp. extract, Chlorella sp. and culture media. This research method used experimental laboratories. The concentration that used in this research : A (10 mg/L); B (100 mg/L); C (200 mg/L); D (300 mg/L); E (400 mg/L); F (500 mg/L); G ( without giving extract of Eucheuma sp.). The result of this research showed that the D treatment produce the highest Chlorella sp. density at peak of population, that is 6,293 log sel/mL and the end of population that is 6,012 log sel/mL with specific growth rate 0,161.Keyword : Density, Chlorella., Eucheuma
BIOKONSENTRASI LOGAM BERAT BESI (FE) PADA KERANG HIJAU DI PANTAI MOROSARI DEMAK Daviani Widawati; Siti Rudiyanti; Wiwiet Teguh Taufani
Pena Akuatika Jurnal Ilmiah Perikanan Dan Kelautan Vol 19, No 1 (2020): PENA AKUATIKA JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Fakultas Perikanan Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/penaakuatika.v19i1.1106

Abstract

Pantai Morosari, Demak merupakan salah satu perairan yang dapat terindikasi tercemar logam berat. Logam berat yang berasal dari beberapa sumber salah satunya adalah besi (Fe). Fe dapat terendap, terlarut hingga terakumulasi pada biota air. Salah satu komoditi perikanan dari Morosari yang dapat terpapar Fe adalah Kerang Hijau. Manusia dapat terpapar Fe dari mengkonsumsi ikan/kerang yang berasal dari perairan tercemar. Tujuan penelitian ini mengetahui konsentrasi Fe di air Kerang Hijau. Penelitian dilakukan pada tiga stasiun di Pantai Morosari dan pemeriksaan logam berat di Laboratorium Kimia Unnes pada bulan Desember 2019. Penelitian ini menggunakan metode survei dan teknik sampling menggunakan purposive random sampling. Pengujian logam berat menggunakan Atomic Absorption Spectrophotometer (AAS) dan analisis konsentrasi dihitung melalui faktor biokonsentrasi. Konsentrasi Fe pada air berkisar 1,587 - 1,658 mg/l. Konsentrasi logam berat pada plankton berkisar 306,9 - 408,2 mg/l dan Kerang Hijau berkisar 3,602 - 17,590 mg/l, hasil ini melebihi baku mutu berdasarkan USEPA (2004) dan BSN (2009). Nilai Faktor Biokonsentrasi Kerang Hijau terhadap air berkisar 2,215 - 10,996. Maximum Tolerable Intake orang dewasa rata-rata 41,13 kg/minggu, dan 12,34 kg/minggu untuk anak-anak.
Trophic-Saprobic Index Based on Macrozoobenthos Abundance as Indicator of Pollution Status in The Banjir Kanal Barat River. Iffa Nadiya Hanifah; Suryanti Suryanti; Siti Rudiyanti
AQUASAINS Vol 10, No 1 (2021)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v10i1.p1015-1022

Abstract

The Banjir Kanal Barat River is one of the major rivers in the Semarang City and there are various activites along the river by the citizen which will give an impact to lead to pollution on water quality. Macrozoobenthos can be used as bioindicator because of it’s low of mobility, easy to catch and identify. The purpose of this study was to determine the community structure of macrozoobenthos, the saprobic index value and to determine  the pollution status of The Banjir Kanal Barat River.This  research was conducted in June-July 2020 using a purposive sampling technique with a total of three stations. The 1st Station is dredged waters in 2019, the 2nd Station is polluted waters due to chicken farm waste, and the 3rd Stations is polluted waters due to domestic waste.The identification of macrozoobenthos use FAO book (1998) and Conchology.be website.The Calculation of community structure of macrozoobenthos consist of diversity, uniformity, and dominance index.The data analysis in this research are data analysis of community structure of macrozoobenthos and saprobic index. The result showed that the Diversity Index (H’) ranged from 0,98 to 1,17 while the Uniformity Index (e) was between 0,56-0,71 and the Dominance Index (C) ranged from 0,43 to 0,45. There were 8 types of macrozoobenthos, consisting of 1 type from the polysaprobic group, 2 types from the β-mesosaprobic group and 5 types from the non-saprobik group. Based on the calculation of the saprobic index value obtained  -0,11 and the Tropic Saprobic Index was -1,07. The pollution status of the Banjir Kanal Barat River is indicated moderate to severe pollution.
Pemberdayaan UMKM melalui Pembinaan Penguatan Branding dan Digitalisasi untuk Mendukung Smart Ecotourism Kelurahan Tugurejo Kota Semarang Milcha Fakhria; Churun A’in; Siti Rudiyanti; Adesty Aura Megarani
SAFARI :Jurnal Pengabdian Masyarakat Indonesia Vol. 5 No. 4 (2025): Oktober : SAFARI :Jurnal Pengabdian Masyarakat Indonesia
Publisher : BADAN PENERBIT STIEPARI PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56910/safari.v5i4.3226

Abstract

Tugurejo Village is located in the Tugu District, Semarang City. The area has abundant natural resources in the fisheries sector and is supported by the surrounding mangrove ecosystem. The availability of these natural resources has encouraged the community to develop food processing through Micro, Small, and Medium Enterprises (UMKM). The challenges faced by UMKMs include a lack of understanding of business legality, underdeveloped product packaging and brand identity, and limited use of digital technology. This community service program aims to enhance the capacity of UMKM actors in Tugurejo Urban Village, Semarang City, in terms of branding and business digitalization to support the development of locally-based coastal smart ecotourism. The approach used in this community service program is Participation Action Research (PAR), where the subjects are UMKM actors. The program was implemented through a series of socialization and technical assistance activities, covering branding education, product packaging, signage, promotional banners, and the development of a shared website: putritirangtugurejo.com.  These activities were able to increase the knowledge and skills of UMKM actors in Tugurejo Village. The results indicate a significant improvement in UMKM actors’ branding awareness, digital media usage, and readiness to compete in the creative economy and sustainable tourism ecosystem. This program demonstrates that collaborative and participatory approaches can effectively drive UMKMs toward becoming more adaptive, professional, and competitive in supporting smart ecotourism.
Implementasi Teknologi Tepat Guna dalam Mitigasi Banjir Sungai Gambir Tembalang Semarang Churun Ain; Siti Rudiyanti; Dina Rahayuning Pangestuti; Bragy Nizar Adi Brata
SEWAGATI: Jurnal Pengabdian Masyarakat Indonesia Vol. 4 No. 3 (2025): September : Jurnal Pengabdian Masyarakat Indonesia
Publisher : BADAN PENERBIT STIEPARI PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56910/sewagati.v4i3.3151

Abstract

Flooding in the Tembalang area, particularly around the Gambir River, is a recurring problem every year. This problem is primarily caused by an increase in water discharge that is not balanced with the physical condition of the river, which is experiencing narrowing and silting. Furthermore, the presence of a bridge on Jalan Bulusari also exacerbates the situation because its construction impedes the smooth flow of water. This obstacle is further exacerbated when garbage accumulates and becomes stuck under the bridge, resulting in overflows that inundate the surrounding area. Various self-help efforts have been undertaken by the community, including submitting proposals for bridge reconstruction to relevant agencies, but have not yet produced a tangible impact. This community service activity adopted a Participatory Action Research (PAR) approach, involving the community directly in the planning, decision-making, and implementation of flood mitigation solutions. The main proposed solution is bridge reconstruction to increase river flow capacity and minimize water flow obstructions. As a supporting measure, a sensor-based water level monitoring system has been installed to serve as an early warning for local residents. Furthermore, a waste sorting program has been implemented, providing separate bins for plastic bottles and paper to reduce the potential for river blockages. This participatory approach is expected to not only increase the effectiveness of flood mitigation, but also strengthen community preparedness and resilience to disasters, while providing examples of model solutions that can be replicated in other areas with similar conditions.
Co-Authors Adesty Aura Megarani Agus Hartoko Bragy Nizar Adi Brata Churun Ain Churun A’in Daviani Widawati Delianis Pringgenies Dina Rahayuning Pangestuti, Dina Iffa Nadiya Hanifah Indrihastuti Sulistianingtiyas Milcha Fakhria R. Ruswahyuni Ria Azizah Suryanti Suryanti Wiwiet Teguh Taufani