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All Journal Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Jurnal Kelautan Tropis Tomini Journal of Aquatic Science Abdi Geomedisains
Rarasrum Dyah Kasitowati
Fakultas Perikanan Dan Ilmu Kelautan-Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Dentistry Earth & Planetary Sciences Education Environmental Science Medicine & Pharmacology Nursing

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POTENTIAL OF Avicennia alba AS AN AGENT OF PHYTOREMEDIATION HEAVY METAL (Pb and Cu) IN WONOREJO, SURABAYA R Rachmawati; Defri Yona; Rarasrum Dyah Kasitowati
Jurnal Kelautan Vol 11, No 1 (2018)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v11i1.3341

Abstract

One of the regions in Surabaya which has accumulated the largest pollution levels was the region of Wonorejo. Wonorejo is an area that is used as a mangrove conservation. But, Pb and Cu are heavy metals that have been detected in high concentration in this region. Avicennia alba has been known to have the ability to absorb heavy metals so that mangrove can be used us phytoremediation agent. The purposes of this research were to analyze the concentration of heavy metals (Pb and Cu) in sediments, roots and leaves of Avicennia alba;  to understand the potential of Avicennia alba as an agent of phytoremediation. The result showed that Cu concentration was higher than Pb concentration in sediment, roots and leaves. The concentrations  of Cu were 4.13 ppm - 36.95 ppm and Pb between 3.28 ppm - 23.79 ppm. Based on bioconcentration factor (BCF) Avicennia alba was categorize as excluder (BCF1)  of both heavy metals, but concentration of translocation factor (TF) of Pb was categorized phytoexstraction (TF1) and Cu was categorized phytostabilization (TF1). The result of the BCF and TF showed that Avicennia alba can absorb heavy metals (Pb and Cu) from the environment, however the mobility of the heavy metals in the mangrove will experience different phytoremediation mechanisms (phytostabilization for Cu; phytoexstraction for Pb).POTENTIAL OF AVICENNIA ALBA AS AN AGENT OF PHYTOREMEDIATION HEAVY METAL (PB AND CU) IN WONOREJO, SURABAYAABSTRACTOne of the regions in Surabaya which has accumulated the largest pollution levels was the region of Wonorejo. Wonorejo is an area that is used as a mangrove conservation. But, Pb and Cu are heavy metals that have been detected in high concentration in this region. Avicennia alba has been known to have the ability to absorb heavy metals so that mangrove can be used us phytoremediation agent. The purposes of this research were to analyze the concentration of heavy metals (Pb and Cu) in sediments, roots and leaves of Avicennia alba; to understand the potential of Avicennia alba as an agent of phytoremediation. The result showed that Cu concentration was higher than Pb concentration in sediment, roots and leaves. The concentrations of Cu were 4.13 ppm - 36.95 ppm and Pb between 3.28 ppm - 23.79 ppm. Based on bioconcentration factor (BCF) Avicennia alba was categorize as excluder (BCF1) of both heavy metals, but concentration of translocation factor (TF) of Pb was categorized phytoexstraction (TF1) and Cu was categorized phytostabilization (TF1). The result of the BCF and TF showed that Avicennia alba can absorb Pb and Cu from the environment, however the mobility of the heavy metals in the mangrove will experience different phytoremediation mechanisms (phytostabilization for Cu; phytoexstraction for Pb).Keywords: Avicennia alba, Phytoremediation, Factor Bioconcentration, Factor Translocation, Heavy Metal (Pb and Cu)
Upaya Penguatan Manajemen Pemasaran Hasil Perikanan Berbasis Media Online di TPI Sendangbiru, Kabupaten Malang, Indonesia Dian Aliviyanti; Bambang Semedi; Defri Yona; Muhammad Arif Asadi; Rarasrum Dyah Kasitowati; Citra Satrya Utama Dewi; Oktiyas Muzaky Lutfi; Andik Isdianto
Abdi Geomedisains Vol. 1, No. 2, January 2021
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (785.462 KB) | DOI: 10.23917/abdigeomedisains.v1i2.199

Abstract

TPI Sendang Biru berada di Kabupaten Malang memiliki potensi yang besar baik dalam bidang penyediaan pasokan ikan ataupun sarana prasarana penunjang lainnya. Pelabuhan perikanan tersebut dipersiapkan sebagai pusat pertumbuhan ekonomi perikanan di wilayah selatan Provinsi Jawa Timur. Pemerintah melalui Direktorat Jenderal Perikanan Tangkap Kementerian Kelautan dan Perikanan Tahun 2018 telah menyelesaikan relokasi pembangunan kios ikan berkonsep higienis pada wilayah tersebut untuk menunjang mutu hasil ikan dan harga jual ikan tetap tinggi.  Sejalan dengan hal tersebut Pemerintah Propinsi Jawa Timur saat ini melakukan pengembangan jalur lintas selatan untuk mempermudah aksesbilitas. Namun, adanya wabah pandemi Covid-19 saat ini menyebabkan dampak yang besar pada berbagai bidang termasuk bidang perikanan. Hal tersebut menyebabkan bukan hanya minat beli masyrakat yang menurun, namun keterbatasan jalur distribusi produk juga menghambat transaksi jual-beli masyarakat. Berdasarkan hal tersebut perlu dilakukan pelatihan dan pembinaan manajemen pemasaran produk-produk perikanan di TPI Sendang Biru berbasis media jual-beli online. Metode edukasi yang dilakukan adalah seminar dengan topik strategi pemasaran digital berbasis media sosial dan workshop berbasis toko online atau marketplace. Melalui program ini diharapkan dapat menjadi salah satu langkah awal dalam menghadapi tantangan-tantangan baru dalam penanggulangan pemulihan ekonomi pasca pandemi Covid-19, serta dapat memperluas jejaring pemasaran para nelayan atau penjual ikan di wilayah tersebut bahkan hingga keadaan normal kembali.
Edukasi Bahaya Sampah Plastik pada Perairan dan Biota Laut di Sekolah Alam, Pantai Bajulmati, Kabupaten Malang, Jawa Timur Dian Aliviyanti; Rarasrum Dyah Kasitowati; Defri Yona; Bambang Semedi; Rudianto Rudianto; Muhammad Arif Asadi; Andik Isdianto; Citra Satrya Utama Dewi
Abdi Geomedisains Vol. 2, No. 2, January 2022
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1918.584 KB) | DOI: 10.23917/abdigeomedisains.v2i2.408

Abstract

Plastic is one of the most common pollutants found in marine waters. The direct negative impact of plastic waste on marine organisms is causing blockages in the digestive tract if eaten either intentionally or unintentionally. One of the efforts to reduce plastic waste is to build public awareness and readiness to actively participate in solving the problem of plastic waste. Therefore, Marine Science Study Program, FFMS, Universitas Brawijaya is dedicated to provide education about the dangers of plastic waste for aquatic communities and marine biota at a pioneering nature school for the Bajulmati Sea Turtle Conservation (BSTC) community in Bajulmati Beach, Malang Regency, East Java. In general, community service activities take place in online and offline manner. The educational methods given to students are a participatory and collaborative learning method, namely by providing an understanding of the material through class discussions and practical waste sorting activities in the field. The results of educational activities on the dangers of plastic waste can increase public knowledge and awareness, especially students at the BSTC nature school so that later it will have an effect on wiser plastic use behavior. Through this activity, it is expected that the resulted knowledge and awareness can foster a sense of love for the environment and can also affect a better use of plastic.
IDENTIFIKASI POTENSI FOTOPROTEKTIF EKSTRAK RUMPUT LAUT COKELAT Sargassum sp. DENGAN VARIASI PELARUT TERHADAP PAPARAN SINAR ULTRAVIOLET SECARA IN VITRO Rarasrum Dyah Kasitowati; Muhammad Miftahul Huda; Rosihan Asmara; Dian Aliviyanti; Feni Iranawati; Mikchaell Alfanov Pardamean Panjaitan; Dwi Candra Pratiwi; Sulastri Arsad
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 17, No 1 (2021): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.17.1.%p

Abstract

Sargassum sp. dikenal sebagai salah satu sumber hayati yang memiliki kandungan senyawa bioaktif yang berpotensi sebagai bahan esesnsial industri. Namun, komoditi ini kurang bernilai ekonomis sehingga perlu eksplorasi secara optimal untuk meningkatkan nilai ekonomisnya. Salah satu potensi yang dapat dikembangkan adalah aktivitas fotoprotektif yang dimiliki oleh Sargassum sp. Tujuan dari penelitian ini adalah untuk mengeksplorasi aktivitas fotoprotektif Sargassum sp. terhadap paparan sinar UV-B dan UV-A. Potensi fotoprotektif diperoleh dari hasil pengujian nilai SPF (Sun Protection Factor), %Te dan %Tp dari tiga ekstrak Sargassum sp. menggunakan jenir pelarut yang berbeda (methanol, etil asetat dan nheksana). Hasil penelitian menunjukkan bahwa ketiga ekstrak memiliki aktivitas fotoprotektif (SPF) bersifat ultra pada konsentrasi 1100 ppm dan memiliki efek perlindungan (%Te dan %Tp) sebagai Sunblock pada konsentrasi 1100 ppm ekstrak Sargassum sp. Namun dari ketiga ekstrak, ekstrak dengan pelarut etil asetat (ESE) menunjukkan nilai SPF yang tertinggi (32,63) dan nilai %Te (0,055) %Tp (0,075) terendah pada konsentrasi yang sama. Semakin tinggi nilai SPF menunjukkan sifat fotoprotektif yang semakin baik, sedangkan semakin rendah nilai %Te dan %Tp menunjukkan efek perlindungan yang semakin baik. Sargassum sp. known as one of the biological sources that contain bioactive compounds. These compounds have the potential to be industrial essential ingredients. However, this commodity is less economically valuable, so it is important to explore its bioactive compounds in order to increase its economic value. One of the potentials that can be developed is its photoprotective activity. The study aimed  to explore the photoprotective activity of Sargassum sp. against exposure of UV-B and UV-A rays. The photoprotective activity was obtained from the results of the SPF (Sun Protection Factor), % Te and % Tp values of three different Sargassum sp. extracts (methanol, ethyl acetate, and n-hexane). The results showed that the three extracts had an ultra-photoprotective activity (SPF) at a minimum concentration of 1100 ppm and had a protective effect (% Te and% Tp) as sunblocks at the same minimum concentration of 1100 ppm. Among these three extracts, the ethyl acetate extract (ESE) showed the highest SPF value (32.63) and the lowest % Te (0.055) % Tp (0.075) value, at the same concentration. The higher SPF value indicates the better photoprotective properties, while the lower % Te and% Tp values explain the better protective effect.  
PERBANDINGAN KANDUNGAN MIKROPLASTIK PADA KERANG DARAH DAN KERANG TAHU DARI PERAIRAN DESA BANYUURIP, GRESIK Defri Yona; Carina Daisy Samantha; Rarasrum Dyah Kasitowati
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 17, No 2 (2021): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.17.2.108-114

Abstract

Keberadaan mikroplastik di perairan yang terus meningkat telah diketahui berpotensi masuk ke dalam berbagai jenis biota laut termasuk kerang. Kerang darah (Tegilarca granosa) dan kerang tahu (Meretrix meretrix) adalah jenis organisme yang hidup pada substrat perairan dan bersifat filter feeder sehingga potensi penyerapan mikroplastik cukup tinggi. Penelitian ini bertujuan untuk menganalisis serta membandingkan akumulasi mikroplastik pada kedua jenis kerang di perairan Desa Banyuurip, Gresik. Pengambilan data lapang terdiri dari sampel sedimen dan kerang dilakukan pada Bulan Maret 2019 pada lima stasiun berbeda yaitu muara Sungai Bengawan Solo, laut terbuka, hutan mangrove, tempat pelelangan ikan dan tambak. Pada setiap stasiun diambil sebanyak ± 1 kg sedimen serta 10 ekor kerang per spesies dengan ukuran cangkang 4-6 cm yang diasumsikan sebagai fase kerang dewasa. Analisis mikroplastik dilakukan di laboratorium melalui tahapan destruksi bahan organik menggunakan H2O2 30 % serta identifikasi mikroplastik secara visual menggunakan mikroskop. Tiga jenis mikroplastik (fiber, film dan fragmen) ditemukan pada sedimen dan kedua jenis kerang dengan dominansi jenis fiber (> 75 %) diikuti oleh fragmen (20 %) dan film (< 2 %). Fiber dan fragmen ditemukan pada seluruh sampel kerang, sedangkan film hanya ditemukan pada beberapa sampel saja. Tidak terdapat perbedaan kelimpahan total mikroplastik antar jenis kerang, namun kelimpahan total mikroplastik ditemukan berbeda antar stasiun penelitian (p < 0,01) dengan kelimpahan tertinggi pada kerang yang hidup di habitat mangrove. Hutan mangrove yang selalu mendapat masukan air laut serta jenis akar pohon mangrove yang bersifat menjebak sedimen memungkinkan akumulasi mikroplastik cukup tinggi sehingga dapat mempengaruhi keberadaan mikroplastik pada kerang. The quantity of microplastic in the marine environment has increased significantly and it could lead to the accumulation in the marine organisms such as mussels and clams. Blood cockle (Tegilarca granosa) and Asiatic hard clam (Meretrix meretrix) are benthic organisms and their feeding mode could expose them to microplastic in the sediment. This study aimed to analyze and compare microplastic accumulation in both mussels in Banyuurip coastal water, Gresik. Sediment and mussel samples were collected on March 2019 from five sampling stations: Bengawan Solo river mouth, seaward area, mangrove, fish landing station dan shrimp culture site. About 1 kg sediment samples and 10 individual mussels in the size of 4−6 cm from each species were collected from each sampling station. Microplastic analysis was conducted in the laboratory by digesting organic matter using H2O2 30 % and the identification was conducted visually using microscope. Three types of microplastic (fiber, film and fragment) was found from the sediment and mussel samples with the domination of fiber (75 %) followed by fragment (20 %) dan film (< 2 %). Fiber and fragment were observed in all sediment and mussel samples, whereas film was available only in certain samples. Statistical test revealed no significant difference in the concentrations of microplastic between the two mussels, however, the differences were observed in the concentrations of microplastic among the sampling stations (p < 0.01).  Higher concentration of microplastic was found in the mussels from mangrove area due to its rooting system that could trap microplastics.
The performance of Chlorella vulgaris growth on mass-scale cultivation Dini Alvateha; Siska Falentina; Rarasrum Dyah Kasitowati; Sutianto Pratama Suherman; Luthfiana Aprilianita Sari; Sulastri Arsad
Tomini Journal of Aquatic Science VOLUME 1 ISSUE 2, NOVEMBER 2020
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (627.461 KB) | DOI: 10.37905/tjas.v1i2.8123

Abstract

Phytoplankton have many benefits, including as a primary producer, natural food, bioindicator, and water pollution treatment. For this reason, their availability needs to be managed, one of which is through cultivation. The purpose of this study was to analyze the mass scale cultivation of Chlorella vulgaris. The research was conducted at the Technical Implementation Unit of Freshwater and Brackish Water Aquaculture, Situbondo, using a descriptive method. The data were analyzed statistically using MS. Excel 2016 software, and a multiple linear regression test was carried out to determine the effect of water quality parameters on the growth of C. vulgaris using the SPSS 16.0 application. The cultivation process started from strain preparation, water preparation, tank and culture media preparation, inoculation, fertilization, and then harvesting. The initial density of C. vulgaris used was 145x104 Cell. mL-1 in tank 1 and 188x104 Cell. mL-1 in tank 2. The results showed that the cell density value of C. vulgaris increased every day until it entered the exponential phase, namely on the 4th day of the culture activity, which was 507 x 104 in tank 1 and 536 x 104 Cell. mL-1 in tank 2. Furthermore, the value of water quality parameters that affected the growth of C. vulgaris in tank 1 and tank 2 was dissolved oxygen of 4.82-6.97 mg. L-1, pH 8.2-9.1, transparency of 20-45 cm, temperature was 26.8-28.2 oC, nitrate of 0.10-0.50 mg. L-1, phosphate of 0.75-2 mg. L-1, and salinity of 30-39 ppt.
Analisis Kesesuaian Habitat Peneluran Penyu Sisik (Eretmocheyls imbricata) di Pantai Batu Hitam dan Pantai Bama, Taman Nasional Baluran, Situbondo Yusril Zaqi Ubaydillah; Defri Yona; Rarasrum Dyah Kasitowati
Jurnal Kelautan Tropis Vol 26, No 2 (2023): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v26i2.15733

Abstract

Hawksbill turtles were observed nesting along the coast of Baluran, mainly at Batu Hitam Beach. The eggs were relocated to a hatchery on Bama Beach, which is a beach where hawksbill turtles have never been seen laying eggs naturally. Referring to the natal homing/philopatry hypothesis, hatchlings that are released on Bama Beach will likely come back to lay eggs in the future. Meanwhile, Batu Hitam Beach is planned to be developed into a tourist area. To preserve this important nesting area, a nesting habitat suitability assessment is needed that can contribute to effective conservation planning and management. This study used observational data to identify the bio-physical characteristics of the beaches and analyzed them using the habitat suitability index (HSI). The parameters observed were the width and slope of the beach, percentage of sand, intensity of light, coastal vegetation, percentage of buildings, and the distance between the nesting beach and the feeding area. There were no significant differences in bio-physical characteristics between the two beaches. Except for beach width, all other parameters are given the same score. Batu Hitam Beach has a slightly wider and steeper beach than Batu Hitam Beach.  Based on the results of an assessment utilizing the habitat suitability index (HSI) for hawksbill nesting sites, the biophysical conditions of Bama Beach and Batu Hitam Beach were assessed as very suitable (>68.86%). Despite Bama Beach's suitability, there have been no reports of hawksbill turtles nesting there. The width of the beach that is too narrow and a lack of coastal vegetation shade are thought to have forced the hawksbill to prefer other locations, such as Batu Hitam Beach.  Penyu sisik teramati bertelur di sepanjang pesisir Baluran, terutama di Pantai Batu Hitam. Telur yang ditemukan dipindahkan ke tempat penetasan di Pantai Bama, pantai yang belum pernah tercatat penyu bertelur secara alami. Merujuk pada hipotesis natal homing/philopatry, tukik yang dilepasliarkan di Pantai Bama dimungkinan akan kembali untuk bertelur di kemudian hari. Di sisi lain, Pantai Batu Hitam rencananya akan dikembangkan menjadi kawasan wisata. Untuk melestarikan habitat peneluran ini, diperlukan penilaian kesesuaian habitat bersarang yang dapat berkontribusi pada perencanaan dan pengelolaan konservasi yang efektif. Penelitian ini menggunakan pendekatan observasional untuk mengidentifikasi karakteristik bio-fisik pantai dan menganalisisnya menggunakan indeks kesesuaian habitat (IKH). Parameter yang diamati adalah lebar dan kemiringan pantai, persentase pasir, intensitas cahaya, vegetasi pantai, persentase bangunan, dan jarak antara pantai peneluran dengan area pakan. Tidak terdapat perbedaan kondisi bio-fisik yang signifikan antara kedua pantai tersebut. Seluruh parameter mendapatkan skor yang sama, kecuali lebar pantai. Pantai Batu Hitam memiliki pantai yang sedikit lebih lebar dan lebih curam daripada Pantai Batu Hitam. Berdasarkan hasil penilaian dengan memanfaatkan Indeks Kesesuaian Habitat (IKH) peneluran penyu sisik, kondisi bio-fisik Pantai Bama dan Pantai Batu Hitam dinilai sangat sesuai (>68,86%). Meskipun hasil penilaian kondisi Pantai Bama sesuai menjadi habitat peneluran, belum ada laporan penyu sisik bertelur di sana. Lebar pantai yang terlalu sempit dan kurang meratanya naungan vegetasi pantai diduga menjadi penyebab penyu sisik memilih pantai lain di sekitar Pantai Bama, salah satunya adalah Pantai Batu Hitam.
Co-Authors Aliviyanti, Dian Andik Isdianto Bambang Semedi Carina Daisy Samantha Citra Satrya Utama Dewi Defri Yona Dini Alvateha Dwi Candra Pratiwi Feni Iranawati Luthfiana Aprilianita Sari Mikchaell Alfanov Pardamean Panjaitan Mohammad Arif Asadi Muhammad Miftahul Huda Oktiyas Muzaky Lutfi R Rachmawati Rosihan Asmara Rudianto Rudianto Siska Falentina Suherman, Sutianto Pratama Sulastri Arsad Yusril Zaqi Ubaydillah