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Lead (Pb) and Cadmium (Cd) contents in mangrove crab Scylla serrata collected from several traditional markets in Medan City, Indonesia Eri Yusni; Reni Z. Sinaga
Aceh Journal of Animal Science Vol 3, No 2: December 2018
Publisher : Syiah Kuala University

Magrove crab Scyllaserratalives in coastal area of city is susceptible to contaminate by heavy metals. Therefore, the objective of the present study was to examine the heavymetalcontentofLead (Pb)andCadmium(Cd)inmangrovecrabS.serrataobtained from several traditional markets in the Medancity, Indonesia. The measurementofheavymetalcontentwascarriedoutusingtheAtomicAbsorption SpectrophotometerwiththeFurnaceGraphmethod.The samples were collected from six marketsin Medan city i.e. Pancing, Sei Kambing, Petisah, Belawan, Jamin Ginting and Padang Bulan markets. Thereresultsshowed that the highestvalueofPbinwas in samplefrom Pancing (0.025mg kg-1)and Sei Sikambing (0.025mg kg-1) Markets and lower was found in sample from Belawan market (0.013mg kg-1). In addition, the highestCadmium(Cd)contentisinPancing Market (0.023 mg kg-1) and lower Cd was from Belawan Market (0.101mg kg-1). It was concluded that heavymetalsPbandCdineachsampleofmangrove crabswereclassifiedaslow level andstill met thequality standard threshold. Therefore,themangrovecrabsampleisstillsafeforconsumptionand canbeanexportcommodity. Keywords: Mangrove crabs, heavy metals, pollution, AAS

ANALISIS KANDUNGAN NITRAT DAN FOSFAT SERTA KETERKAITANNYA DENGAN KERAPATAN MANGROVE DI PANTAI LABU KABUPATEN DELI SERDANG Sabrilianti Yahra; Zulham Apandy Harahap; Eri Yusni; Rusdi Leidonald
JURNAL ENGGANO Special Issue SEMINAR NASIONAL VIRTUAL
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jenggano.5.3.350-366

Pantai Labu merupakan daerah yang terletak di Kabupaten Deli Serdang dan dimanfaatkan oleh masyarakat untuk penangkapan ikan menggunakan kapal, pemukiman serta aktivitas wisata. Adanya aktivitas tersebut diduga menyebabkan penurunan kualitas lingkungan mangrove yang berada di Pantai Labu. Nitrat dan Fosfat merupakan nutrien utama yang menentukan kestabilan pertumbuhan vegetasi mangrove. Akibat penurunan kualitas lingkungan, maka akan mempengaruhi distribusi nitrat dan fosfat yang dapat mempengaruhi pertumbuhan mangrove tersebut. Penelitian ini bertujuan untuk mengetahui kandungan nitrat dan fosfat di substrat mangrove serta keterkaitannya dengan kerapatan mangrove. Penelitian ini dilakukan pada bulan September-Oktober 2019 dengan menggunakan metode purposive sampling pada 5 titik stasiun. Hasil penelitian didapatkan nilai total kerapatan mangrove untuk tingkat pohon yaitu 2,89 Ind/m2,untuk tingkat pancang 1,75 Ind/m2 dan untuk tingkat semai 0,1 Ind/m2. Kandungan nitrat dalam sedimen berkisar antara 0,7-1,11 mg/kg dan kandungan fosfat dalam sedimen berkisar antara 2,5-2,8 mg/kg. Kandungan nitrat di subtrat yang didapatkan dalam penelitian ini termasuk ke dalam kategori rendah. Kandungan fosfat di subtrat yang didapatkan dalam penelitian ini termasuk ke dalam kategori rendah. Keterkaitan nitrat dengan kerapatan mangrove yang didapatkan sebesar 98% yang berarti nitrat memiliki pengaruh yang sangat besar dengan kerapatan mangrove, sedangkan keterkaitan fosfat dengan kerapatan mangrove yang didapatkan adalah sebesar 20% yang berarti fosfat memiliki pengaruh yang kecil (sedikit) dengan kerapatan mangrove.Pantai Labu is an area located in Deli Serdang Regency which is used by the people for fishing using ships, settlements and tourist activities. The existence of these activities is thought to cause a decrease in the quality of the mangrove environment on Pantai Labu. Nitrate and Phosphate are the main nutrients that determine the stability of mangrove vegetation growth. As a result of environmental degradation, it will affect the distribution of nitrates and phosphates which can affect the growth of mangroves. This study aims to figure out the nitrate and phosphate content in the mangrove substrate and its relation to the density of the mangrove. This research was conducted in September-October 2019 using a purposive sampling method at 5 station points. The results obtained total value of mangrove density for tree level is 2.89 Ind/m2, for the sapling level 1.75 Ind/m2 and for seedling level 0.1 Ind/m2. Nitrate content in sediments ranged from 0.7-1.11 mg/kg and phosphate content in sediments ranged from 2.5-2.8 mg/kg. The nitrate and phosphate content in the substrate obtained in this study was the low category. Result of statistical analysis of the relationship between nitrate and mangrove density was 98%, which means that nitrate had a very big effect on mangrove density, while the relationship between phosphate and mangrove density was 20%, which meant that phosphate had a small effect (a little) with mangrove density.

Short communications: Effect of red spinach (Amaranthus tricolor L. var Blitumbrum) extract in the diet on color brightnes of guppy fish (Poecilia reticulata) Eri Yusni; Nurul F.D. Hasibuan
Aceh Journal of Animal Science Vol 8, No 1 (2023): February 2023
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/ajas.8.1.26813

Fish color brightness is influenced by food intake, but no prior reviews have explored the use of red spinach extract in fish feed to enhance color brightness and promote growth in guppy (Poecilia reticulata). Therefore, this study aims to determine the suitable concentration of red spinach extract Amaranthus tricolor color brightness, growth, and survival of guppy. The experiment followed a completely randomized design with three concentrations of red spinach extract (3%, 4%, and 5%) replicated three times at the UPTD Fish Breeding Center in North Binjai Regency, North Sumatra Province. Furthermore, red spinach extract was mixed with the commercial diet containing 41% crude protein and administered to fish at a rate of 3% of their body weight daily for 40 days. The results showed a significant effect of red spinach extract doses on guppy color brightness (P0.05), but no significant influence on weight gain and fish survival (P0.05). It was also discovered that the average color increase was 2,652 in feed mixed with 5% red spinach extract. Similarly, the highest fish weight gain was observed at the 5% concentration, which did not significantly differ from the other concentrations. Fish survival rates were high, with no significant differences among the treatments. Therefore, it was concluded that the optimal concentration of red spinach extract for enhancing guppy color brightness was 5%

Detection parasites of Indian Mackerel (Rastrelliger kanagurta) in North Sumatera, Indonesia Eri Yusni; Luvi Syafrida Handayani
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

The purpose of this study was to identify ectoparasites and their prevalence infecting Rastrelliger kanagurta in North Sumatera, Medan. So far, people use this fish as a processed product. The method used in this study is a survey method with direct collection at the research site. Samples were taken using random sampling technique. Sampling was carried out in five places in Belawan with the number of samples studied as many as 30 individuals with an average length of 25.3 cm and a weight of 193.7 grams. Identification was carried out in a laboratory using a light microscope at the Faculty of Agriculture, University of North Sumatra. The results of this study found seven types of parasites that infect the surface in the muscles, fins and gills. The parasites found in their respective prevalence were infected Dactylogyrus sp. 13.33% was found in muscus, Austrobdella sp. 30% found in fin. While the parasites found in the gills were Zoothamnium sp as much as 6.67%, Diphyllobothrium sp as much as 16.67%, Rhadinorynchus sp. 53.33%, Camallanus sp. 20% and Anisakis sp. 3.33%. Rhadinorynchus sp. is the parasite with the highest prevalence rate, found on the scales, gills and fins respectively of mackerel.

PEMBERDAYAAN PETERNAK IKAN LELE MELALUI TEKNOLOGI BIOFLOK DI KECAMATAN PATUMBAK YUNILAS YUNILAS; ERI YUSNI; GALIH ARI WIRAWAN SIREGAR; RAYHAN AKBAR; M. FADIL FIKRI
COMMUNITY : Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 1 (2023)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/community.v3i1.2329

This community service was carried out in Patumbak Kampung Village, Patumbak District, Deli Serdang Regency. Partners' catfish farming has not developed well. Common problems faced by partners include low knowledge of (1) sources of fish feed ingredients, (2) ration formulation techniques, (3) techniques for making fish pellets, (5) techniques for making local microorganisms, and (6) bio floc technology in Fish farming to increase productivity. Problem-solving methods are through Focus Group Discussion (FGD) methods, training, practical activities, and mentoring. The results of community service activities are obtained by increasing farmers' knowledge about: sources of alternative feed ingredients, feed formulation techniques, pellet manufacturing techniques, waste-based local microorganism production "MOIYL", and bio floc technology in catfish farming to increase productivity. The outputs produced are formula rations (fish feed), catfish pellets, and MOL. ABSTRAKPengabdian kepada masyarakat ini dilaksanakan di Desa Patumbak Kampung, Kecamatan Patumbak, Kabupaten Deli Serdang. Budidaya ikan lele yang dilakukan mitra belum berkembang dengan baik. Permasalahan umum yang dihadapi mitra antara lain rendahnya pengetahuaan tentang: (1) sumber-sumber bahan pakan ikan, (2) teknik formulasi ransum, (3) teknik pembuatan pellet ikan, (5) teknik pembuatan mikroorganisme lokal dan (6) teknologi bioflok dalam budidaya ikan guna meningkatkan produktifitas. Metode penyelesaian masalah adalah melalui metode Focus Group Discussion (FGD), pelatihan, praktek kegiatan dan pendampingan. Hasil dari kegiatan pengabdian kepada masyarakat adalah diperoleh peningkatan pengetahuan petani tentang: sumber-sumber bahan pakan alternatif, teknik memformulasi pakan, teknik pembuatan pellet, pembuatan mikroorganisme lokal “MOIYL” berbasis limbah, dan teknologi bioflok dalam budidaya ikan lele guna meningkatkan produktifitas. Luaran yang dihasilkan berupa formula ransum (pakan ikan), pellet ikan lele, MOL.

Detection parasites of Indian Mackerel (Rastrelliger kanagurta) in North Sumatera, Indonesia Eri Yusni; Luvi Syafrida Handayani
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.3.26814

The purpose of this study was to identify ectoparasites and their prevalence infecting Rastrelliger kanagurta in North Sumatera, Medan. So far, people use this fish as a processed product. The method used in this study is a survey method with direct collection at the research site. Samples were taken using random sampling technique. Sampling was carried out in five places in Belawan with the number of samples studied as many as 30 individuals with an average length of 25.3 cm and a weight of 193.7 grams. Identification was carried out in a laboratory using a light microscope at the Faculty of Agriculture, University of North Sumatra. The results of this study found seven types of parasites that infect the surface in the muscles, fins and gills. The parasites found in their respective prevalence were infected Dactylogyrus sp. 13.33% was found in muscus, Austrobdella sp. 30% found in fin. While the parasites found in the gills were Zoothamnium sp as much as 6.67%, Diphyllobothrium sp as much as 16.67%, Rhadinorynchus sp. 53.33%, Camallanus sp. 20% and Anisakis sp. 3.33%. Rhadinorynchus sp. is the parasite with the highest prevalence rate, found on the scales, gills and fins respectively of mackerel.

Detection parasites of Indian Mackerel (Rastrelliger kanagurta) in North Sumatera, Indonesia Eri Yusni; Luvi Syafrida Handayani
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.3.26814

The purpose of this study was to identify ectoparasites and their prevalence infecting Rastrelliger kanagurta in North Sumatera, Medan. So far, people use this fish as a processed product. The method used in this study is a survey method with direct collection at the research site. Samples were taken using random sampling technique. Sampling was carried out in five places in Belawan with the number of samples studied as many as 30 individuals with an average length of 25.3 cm and a weight of 193.7 grams. Identification was carried out in a laboratory using a light microscope at the Faculty of Agriculture, University of North Sumatra. The results of this study found seven types of parasites that infect the surface in the muscles, fins and gills. The parasites found in their respective prevalence were infected Dactylogyrus sp. 13.33% was found in muscus, Austrobdella sp. 30% found in fin. While the parasites found in the gills were Zoothamnium sp as much as 6.67%, Diphyllobothrium sp as much as 16.67%, Rhadinorynchus sp. 53.33%, Camallanus sp. 20% and Anisakis sp. 3.33%. Rhadinorynchus sp. is the parasite with the highest prevalence rate, found on the scales, gills and fins respectively of mackerel.

The Ability of Spirulina sp. Microalgae as A Phytoremediation Agents in Liquid Waste of Handling Fish from Cemara Market, Medan Astrid Fauzia Dewinta; Eddie Satria Hartono; Eri Yusni; Ipanna Enggar Susetya; Rizky Febriansyah Siregar
Jurnal Ilmiah Perikanan dan Kelautan Vol. 12 No. 2 (2020): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v12i2.22224

HighlightMicroalgae Spirullina sp. can remediate BOD levels reach on 75.59% with the experiment was 30% liquid waste and 70% water.Microalgae Spirullina sp. can remediate COD levels reach on 79.19% with the experiment was 30% liquid waste and 70% water.Microalgae Spirullina sp. can remediate TSS levels reach on 83.54% with the experiment was 30% liquid waste and 70% water.Microalgae Spirullina sp. can remediate ammonia levels reach on 89.15% with the experiment was 30% liquid waste and 70% water.AbstractContamination material from fish market activities, namely fish handling liquid waste, is a problem facing the city of Medan today. Reduce the level of liquid waste pollutants can be done biologically by using microalgae organisms. One of them is like microalgae Spirulina sp. This study aims to determine the ability of Spirulina sp. for reducing the levels of pollutants in liquid waste of handling fish.There search method was use a Completely Randomized Design (CRD) with five treatments and three replications. Addition of 100 mL of inoculant Spirulina sp. with a density of 1x105 ind/mL of liquid waste mixed with fresh water with to reach a volume of 1000 mL. Each liquid waste concentration of 30%, 60%, 80%, 100%, and control (0%) added 1 mL Walne fertilizer. The results of initial measurements of liquid waste for parameters BOD, COD, TSS, ammonia, and phosphate, respectively are 26.50mg/L, 4400mg/L, 894mg/L, 1.10mg/L, and 16.7 mg/L. Based on the results, the best reduction in BOD level occured in the treatment of 30% (pA) of liquid waste is 17.64 mg/L with phytoremediation efficiency of 75.59%. The best reduction in COD levels occurred in the treatment of 30% (pA) of liquid waste is 1301.12 mg/L with phytoremediation efficiency of 79.19%. The best reduction in TSS levels occurred in the treatment of 60% (pB) of liquid waste is 411 mg/L with phytoremediation efficiency of 83.54%. The best reduction in ammonia levels was at 30% (pA) treatment, which was 0.38 mg/L with phytoremediation efficiency of 89.15%. While the best decrease in phosphate levels occurred in the control treatment (pK), which was 4.45 mg/L with phytoremediation efficiency of 97.35%.

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