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Genetic Diversity and Community Structure of Macrozoobenthos from Five Mangrove Forests in North Sumatra and Aceh, Indonesia Anggita Amelati Harahap; Rizka Amelia; Ipanna Enggar Susetya; Arida Susilowati; Desrita Desrita; Tadashi Kajita; Mohammad Basyuni
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 27, No 4 (2022): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.27.4.358-366

Abstract

Mangrove forests play an important role in macrozoobenthos ecology, assisting them in foraging, sheltering, and reproduction. In order to better understanding the genetic diversity and population genetic structure of macrozoobenthos, the mitochondrial 16S subunit (16S rRNA) gene was used. Present study aimed to determine genetic diversity and community structure of macrozoobenthos in the North Sumatra and Aceh mangrove forests, Indonesia. The reliaprep gDNA tissue miniprep system kit was used to extract 50 samples. To determine the PCR product's molecular weight, UVITEX software was employed. Genetic polymorphism was examined with GenAlex version 6.502, and each community underwent principal coordinates analysis (PCoA). MVSP 3.2.2 software and the unweighted pair group method with arithmetic mean (UPGMA) were used to construct the dendrogram. The 16S rRNA gene revealed a band size in the range of 370–500 bp. The PCoA showed that approximately all individual macrozoobenthos from each community structure were localized in the same quadrant. Genetic variation was varied by 3% between populations and 97.5% within individuals according to the analysis of molecular variance (AMOVA), with the dendrogram classifying the populations into two major clusters. Dendrogram analysis showed low genetic differentiation between macrozoobenthos populations of North Sumatra and the Aceh mangroves, implying the low ability of individuals in a population to adapt. The high polymorphic information content (PIC) value (0.886) reported was consistent with the number of alleles and size of the population's heterozygosity value. Present findings provide important information that will assist in formulation of mangrove conservation and restoration approaches. 
UPAYA TRANSPLANTASI TERUMBU KARANG (Acropora sp.) SEBAGAI REHABILITASI FUNGSI KAWASAN EKOSISTEM TERUMBU KARANG TERDAMPAK TUMPAHAN MINYAK ASPAL DI DESA AFULU KABUPATEN NIAS UTARA Vindy Rilani Manurung; Ipanna Enggar Susetya; Hasbi Husaini; Hafizah Arinah; Wilman Nazara
Jurnal Abdi Insani Vol 10 No 3 (2023): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v10i3.1062

Abstract

A tanker that was transporting 1,900 tons of raw asphalt into the North Nias Marine Protected Area spilled it, contaminating the ocean up to 50 kilometers away from the North Nias Regency Marine Protected Area. Long-term effects on the coral reef ecosystem are anticipated to build up and result in a decline in fish catches. The community service team works to restore coral reef ecosystem areas utilizing coral reef transplanting technology as a solution to the partners problems. In accordance with the goals of the policy direction of the Sustainable Development Goals (SDGs) number 14 to increase conservation, rehabilitation, and disaster resilience in coastal and marine areas, to establish and develop a group of productive communities through KUB Harapan Wunga Nias Utara. Implementation of activities to solve KUB Harapan Wunga partner problems in Afulu Village, using counseling and simulation approaches carried out holistically. All activities go through four stages, preparation of activities, outreach, delivery of operational tools and materials, field activities simulating the search for coral donors and removing tables coral transplant shelf. The results of the activity were created and delivery of 15 units of transplant racks along with tools and materials which were handed over to community service partners, outreach and field activities attended by the Afulu Village Secretary, head of the Harapan Wunga Kelompok Usaha Bersama (KUB), 10 fishermen and 17 community service team students. The transplant shelf that has been removed at the location will be observed for every 2 weeks by the community service partner. This community service activity has a positive impact and a new understanding for the partners of the Harapan Wunga Kelompok Usaha Bersama (KUB) Afulu Village, Afulu District, North Nias Regency regarding the major influence of the function coral reef ecosystems for the catch of fishermen as well as providing new experience in the application of science and technology (IPTEK) for transplantation coral reefs. The implementation of community service succesfully, partners were very enthusiastic about carrying out coral reef transplantation simulation activities, besides that the role of lecturers and students in applying knowledge about management of conservation area utilization and management of coral reefs as well.
Marine Ecotourism Potential in Unggeh Island Tapanuli Tengah Regency, North Sumatra, Indonesia Zulham Apandy Harahap; Ipanna Enggar Susetya
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.v12i2.17940

Abstract

Highlight Calculated and assested the percentage of live coral coverIdentified reef fishes and calculated fish abundanceMeasured physical and chemical oceanography parameter Analyzed carrying capacity and suitability of Unggeh Island for tourism utilization especially marine diving and snorkeling.AbstractUnggeh Island located in the administration of the Village Sitardas Badiri District, Central Tapanuli Regency into a marine tourism area. The development of marine ecotourism Unggeh Island is an alternative to the economic improvement of so- ciety. This study aims to assess the potential of coral reef ecosystem in the form of percentage of life form coral, coral species and species and abundance of reef fish found in Unggeh Island waters of Central Tapanuli Regency and to analyze the suitability of coral reef ecosystem in Unggeh Island for tourism utilization es- pecially marine diving and snorkeling. Coral reef community data collection was done by using SCUBA divers equipment, in identifying The coral community used underwater photo transect (UPT) method, while coral fish diversity was observed by underwater visual census (UVC) method. Physical and chemical oceanography parameter data such as temperature, salinity, pH, current, transparency and DO are performed at each observation station. The survey results of coral reef observation at four stations showed different results. Percentage of live coral cover of station 1 to 4 were 25.40 %, 12.33%, 28.53%, and 25.53 respectively. Therefore, reef fishes found 36 species that consist of ten families and 423 individual fishes. The results showed that Unggeh Island was suitable (S2) for diving and snorkeling activities, with the carrying capacity was 3.054 persons/day.
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

Abstract

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%.
Implementation of 16S rRNA Gene for Fish and Shrimp Barcoding in Mangrove Ecosystems in North Sumatra and Aceh, Indonesia Hatika Hairani; Rizka Amelia; Ipanna Enggar Susetya; Arida Susilowati; Yuntha Bimantara; Tadashi Kajita; Mohammad Basyuni
Jurnal Ilmiah Perikanan dan Kelautan Vol. 15 No. 1 (2023): 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.v15i1.36686

Abstract

Highlight Research The genetic diversity of fish and shrimp from mangrove habitats was relatively substantial, with a heterozygosity of 0.926 and the exception of Langsa samples. AMOVA revealed that the diversity among individuals in the populations were higher compared to those within individuals. DNA barcode in mangroves is useful in developing mangrove conservation and restoration initiatives   Abstract Fish and shrimp are among the species that are vulnerable to high level of disturbance in mangrove ecosystem. This study aimed to investigate the implementation of 16S rRNA gene for fish and shrimp barcoding in mangrove ecosystems in North Sumatra and Aceh, Indonesia. 50 samples fresh fish and shrimp were collected from five mangrove ecosystems in North Sumatra, namely Belawan, Lubuk Kertang, Percut Sei Tuan, and Pulau Sembilan and Langsa of Aceh for DNA extraction process. The research was divided into four activities: sample collection, DNA isolation, PCR amplification, and data analysis. DNA was extracted using kit extraction (kit Reliaprep gDNA Tissue Miniprep System) and with PCR amplification. Genetic parameters were analyzed using Gen Alex 6.51 software and the relationship between sites was examined using the MVSP 3.22. The genetic diversity of fish and shrimp from mangrove habitats was relatively substantial, according to the findings, with a heterozygosity of 0.926, with the exception of Langsa samples, which were only identified in subclass A1. Genetic relationship between sites revealed that all samples clustered into two branches and were randomly dispersed within each site. This work confirmed the 16S rRNA gene worked for fish and shrimp barcoding in mangrove ecosystems, North Sumatra and Aceh, Indonesia and our findings are expected to be useful in developing mangrove conservation and restoration initiatives.
Mollusk Diversity in Percut Sei Tuan Silvofishery Ponds, North Sumatra, Indonesia Ipanna Enggar Susetya; Mohammad Basyuni; Muhammad Rakezza Rifzy Rifzy; Rizka Amelia; Yuntha Bimantara; Rusdi Leidonald; Amanatul Fadhilah
Jurnal Ilmiah Perikanan dan Kelautan Vol. 15 No. 2 (2023): 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.vi.37772

Abstract

Highlight Research We found 16 species of mollusks with a total of 15 species from the gastropod class and 1 species from the Bivalvia class bivalves in the silvofishery ponds, recording a total of 369 individuals. The density of mollusks in July in pond I was 3.6 ind/m2, while it was 10.66 ind/m2 in pond II. The mollusk diversity index in October after rehabilitation was included in the high diversity category because the value of H' was 1.6 - 3.0. Pond I has a diversity index value of 1.89 and pond II 1.82. The value of C-organic concentration in both ponds ranged from 3.00% to 5.72%, which is the optimum level for mollusk growth.   Abstract Silvofishery is a system that combines mangrove and fishery to protect mangrove ecosystems and restore their functions, one of which is as a habitat for macrozoobenthos. Investigate the mollusks and mangrove density. Mollusk sampling was carried out on sub-plots measuring 1 x 1 m² in the mangrove vegetation transect, and mangrove density was measured by counting the number of trees directly on all of the mangrove species at two silvofishery ponds. A total of 16 species of mollusks were found at the observation site, consisting of gastropods and bivalves. The density of mollusks in July was 20 ind/m2 in pond I, while it recorded 9 ind/m2 in pond II. In October, after pond II rehabilitation, the density was inversely proportional to July, and the highest density was found in pond I at 10 ind/m2, while pond II measured 9 ind/m2. After rehabilitation, the index value H' decreased in pond I and pond II from 2.82 and 2.98 to 2.52 and 2.68, respectively. The mangrove density was 887 ind/ha in pond I and 686 ind/ha in pond II. The substrate in both ponds was clay. Nitrate concentration values "‹"‹in the substrate in both ponds ranged from 0.27% to 0.29%, phosphate recorded a percentage of 0.07–0.09%, and C-organic ranged from 3.00% to 5.72%. The water's physicochemical parameters and the type and content of the substrate were still suitable for mollusk life.
Alginate Profile, Antioxidant, and Antibacterial Activities of Brown Algae Sargassum cristaefolium from Pane Island, North Sumatera Astrid Fauzia Dewinta; Ipanna Enggar Susetya; Khairunnisa Khairunnisa; Mai Suriani; Syahira Addina; Amanatul Fadhilah
Jurnal Ilmiah Perikanan dan Kelautan Vol. 15 No. 2 (2023): 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.v15i2.41621

Abstract

Highlight Research Alginate content produced by Sargassum cristaefolium in three different parts of the thallus has food grade quality. The alginate chemical profile of cristaefolium in three different thallus part had a significant effect. Antioxidant activity of cristaefolium extract was in the moderate category. Antibacterial activity of cristaefolium extract against aquatic pathogenic bacteria has moderate and strong effectiveness. Abstract Sargassum, an ubiquitous variant of algae in North Sumatera, has grown wildly on Pane Island with the type, namely, Sargassum cristaefolium. This study aimed to determine the characteristics of alginates, antioxidative ability, and antibacterial ability. Alginate was extracted via the acid pathway method from three different parts of the thallus and was then characterized physically and chemically. Antioxidant activity using the DPPH method and the total phenol with a gallic acid standard. Antibacterial activity using the well diffusion method. The characteristics of alginate include yields of 53.61% ± 2.21%, viscosity of 11.44 ± 1.54 cPs, whiteness index of 56.55 ± 1.71, acidity degrees of 9.83 ± 0.34, moisture content of 9.63% ± 0.53%, ash content of 23.17% ± 0.76%, Pb and Hg levels of 0.065 ± 0.01 ppm, 0.034 ± 0.003 ppm. The IC50 value of antioxidant activity being 134.408 ± 0.04 ppm, moderate category. Extract concentration of 8 mL can inhibit the E. coli and E. tarda with inhibitions of 10.60 ± 0.72, 14.03 ± 2.97 mm. Although other pathogenic bacteria can be inhibited optimally at an extract concentration of 10 mL with inhibitions of 11.03 ± 1.43, 9.07 ± 0.20, 11.20 ± 1.56, 12.80 ± 3.01 mm. Alginates isolated in S.cristaefolium from Pane Island met food grade standards except for its viscosity. S. cristaefolium from Pane Island is a moderate antioxidant. Likewise, its antibacterial ability was moderate however it was strong against aquatic gram-negative bacteria.