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KEANEKARAGAMAN KOMUNITAS KRUSTASEA DI KEPULAUAN MATASIRI KALIMANTAN SELATAN Pratiwi, Rianta; Wijaya, Nirmalasari Idha
BERITA BIOLOGI Vol 12, No 1 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i1.525

Studies on the community diversity of crustaceans have been conducted in the waters of Matasiri Islands, South Kalimantan, from 19th November to 1st December 2010. This research was conducted to determine the density, diversity and the presence of crustacean fauna in the waters of South Kalimantan, especially in the Matasiri Islands. Samples were collected using trawl gear operated by KR (Research Ship) BarunaJaya VIII in four Stations and three Stations of free collecting along the islands. Free sampling was conducted along the beach and the reef edge by breaking live and dead rocks, and digging sand and mud in the mangrove or using hand net around the beach of Matasiri Islands. Collection is also done using the gillnet gear which is installed in shallow water during high tides about 4 hours.The samples were collected during low tide. The results obtained were 1882 individuals covering 86 species and 19 families. The diversity index ranges between 0.97 (the lowest at Station 3 of free collecting) and 3.74 (the highest in Station 3 of trawl). While the similarity index ranged from 0.36 (the lowest in Station 1 of trawl) to 0.97 (the highest in Station 3 of free collecting). Penaeidae prawn has the highest density in each observed station. Portunidae crab has the second highest density. South Kalimantan waters especially Matasiri Islands is still in good condition for crustacean life.

Pola Sedimentasi di Teluk Lamong, Surabaya, Jawa Timur. Kuntari, Fitri Indah; Bintoro, Rudi Siap; Wijaya, Nirmalasari Idha
Jurnal Riset Kelautan Tropis (Journal of Tropical Marine Research) (J-Tropimar) Vol 2, No 2: November 2020
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v2i2.46

Penelitian ini dilakukan untuk menganalisis pola sedimentasi yang berada di perairan Teluk Lamong Surabaya â€“ Jawa Timur, faktor arus dan dekat aliran sungai yang mempengaruhi sedimentasi di Teluk Lamong. Penelitian dilakukan pada bulan Agustus 2018 sampai Mei 2019. Pengambilan sampel sedimen menggunakan alat yaitu sedimen grab yang digunakan untuk pengampilan sampel sedimen dasar dan untuk pengambilan sampel sedimen tersuspensi menggunakan alat botol nansen. Data yang digunakan dalam penelitian ini adalah data pasang surut, data debit sungai, data batimetri, data kecepatan dan arah arus dan data jenis sedimen. Data yang telah diperoleh dari hasil survei lapangan akan diolah di laboratorium Hidro â€“ Oseanografi Universitas Hang Tuah. Data yang diolah di laboratorium Hidro â€“ Oseanografi Universitas Hang Tuah adalah sampel sedimen grab dan sampel sedimen tersuspensi. Untuk memodelkan pola sedimentasi digunakan software SMS (Surface Water Modelling System) dengan menggunakan data debit sungai dan hasil pegolahan sedimen tersuspensi yang telah diperoleh dari survei lapangan. Data yang di hasilkan dari pengolahan model pada saat pasang konsentrasi sedimen cenderung tinggi dan pada saat surut konsentrasinya cenderung rendah. Pada saat pasang, arus laut akan mengalir ke arah teluk hingga sampai ke sungai dan pada saat surut, arus dari sungai akan mengalir ke arah laut.

POTENSI PENGEMBANGAN BUDIDAYA SILVOFISHERY DI AREA MANGROVE WONOREJO SURABAYA Nirmalasari Idha Wijaya; Ninis Trisyani; Aniek Sulestiani
Jurnal Penelitian Hutan dan Konservasi Alam Vol 16, No 2 (2019): Jurnal Penelitian Hutan dan Konservasi Alam
Publisher : Pusat Penelitian dan Pengembangan Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphka.2019.16.2.173-189

Peraturan Daerah Kota Surabaya No 3 Tahun 2007 menetapkan bahwa ekosistem mangrove yang ditetapkan sebagai kawasan konservasi di Pamurbaya seluas 2.500 ha. Namun sampai tahun 2015 hutan mangrove yang ada di kawasan Pamurbaya hanya ada sekitar 440 ha. Selebihnya sekitar 2.060 ha masih berupa lahan tambak tradisional yang tidak ramah bagi ekosistem mangrove. Tujuan dari penelitian ini adalah untuk menilai potensi pengembangan budidaya silvofishery kepiting di kawasan mangrove Wonorejo. Metode penelitian yang digunakan adalah analisis deskriptif terhadap ekosistem mangrove dan valuasi ekonomi terhadap budidaya silvofishery kepiting bakau. Silvofishery adalah solusi untuk pemanfaatan mangrove yang ramah lingkungan, namun pengembangan budidaya silvofishery kepiting bakau di mangrove Wonorejo memerlukan upaya khusus, agar dapat berhasil dengan baik. Hal ini disebabkan oleh rendahnya kondisi lingkungan perairan mangrove untuk budidaya, yaitu antara lain pada tingginya bahan pencemar logam berat (Pb, Cd, dan Hg), rendahnya Oksigen Terlarut (DO), dan. tingginya laju sedimentasi dalam tambak. Kondisi lingkungan yang rendah menyebabkan laju pertumbuhan kepiting budidaya rendah hanya rata-rata 0,32 – 0,87 g/hari, dengan tingkat kelulushidupan sekitar 50-58%, sehingga menjadi tidak layak juga secara ekonomi.

MONITORING SEBARAN VEGETASI MANGROVE YANG DIREHABILITASI DI KAWASAN EKOWISATA MANGROVE WONOREJO SURABAYA Nirmalasari Idha Wijaya; Muhammad Huda
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 10 No. 3 (2018): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

ABSTRAKKawasan pesisir Wonorejo merupakan kawasan mangrove yang direhabilitasi menjadi kawasan ekowisata. Penelitian bertujuan untuk menganalisis pola pembentukan zonasi vegetasi pada ekosistem mangrove yang telah direhabilitasi. Lokasi pengamatan berada pada 3 stasiun, yaitu Stasiun 1 terletak pada batas atas zona supratidal, Stasiun 2 di pertengahan zona intertidal, dan Stasiun 3 pada zona subtidal. Struktur vegetasi mangrove dianalisis berdasarkan Kerapatan Jenis (K), Dominansi (D), dan Indeks Nilai Penting (INP); sedangkan sebaran vegetasi mangrove berdasarkan karakteristik lingkungan dianalisis dengan menggunakan Analisis Komponen Utama (Principal Component Analysis, PCA). Hasil pengamatan menunjukkan bahwa jenis yang dominan pada Stasiun 1 adalah Nypa fruticans (84,2%), sedangkan pada Stasiun 2 jenis yang dominan adalah Excoecaria agallocha (40,9%), dan di Stasiun 3 adalah Avicennia alba (83,4%). Tingkat kerusakan vegetasi mangrove di Wonorejo dikategorikan sedang, dengan kerapatan pohon antara ≥ 1000 – < 1500 per hektar. Indeks keanekaragaman pada semua stasiun juga tergolong rendah karena bernilai kurang dari 1,5. Ekosistem ini mulai menunjukkan adanya suksesi ekosistem, terbukti dengan mulai adanya jenis-jenis mangrove lain yang tidak ditanam dengan sengaja. Hasil analisis PCA menunjukkan adanya korelasi positif antara parameter jenis vegetasi dengan tinggi rendaman pasut, salinitas, dan pH, yang berkontribusi membentuk sumbu F2 positif. Artinya ketiga parameter tersebut merupakan faktor utama yang menentukan apakah ekosistem tersebut sesuai untuk pertumbuhan jenis mangrove tertentu. ABSTRACTThe coastal area of Wonorejo is the mangrove area rehabilitated to become an ecotourism area. The research aims to analyze the patterns of formation of mangrove vegetation zoning that have been rehabilitated. The observation locations are at 3 stations, i.e. station 1 is located at the upper limit of supratidal zone, station 2 is in the middle of intertidal zone, and station 3 is in the subtidal zone. The structure of the mangrove vegetation were analyzed based on the species density (K), dominance (D), and important value index (IVI); while the distribution of mangrove vegetation based on environmental characteristics was analyzed using Principal Component Analysis (PCA). The results showed that the dominant species at Station 1 was Nypa fruticans (84.2%), whereas in Station 2 the dominant species was Excoecaria agallocha (40.9%), and at Station 3 was Avicennia alba (83.4%) The level of damage to mangrove vegetation in Wonorejo is categorized as medium, with tree densities between ≥ 1000 - <1500 per hectare. Diversity index at all stations is also relatively low because it is worth less than 1.5. This ecosystem begins to show the existence of an ecosystem succession, as evidenced by the start of other species of mangroves that are not planted intentionally. The results of PCA analysis showed a positive correlation between the parameters of vegetation types with high tide baths, salinity, and pH, which contributed to forming a positive F2 axis. This means that the three parameters are the main factors that determine whether the ecosystem is suitable for the growth of certain species of mangroves.

Distribusi Spasial Krustasea di Perairan Kepulauan Matasiri, Kalimantan Selatan Nirmalasari Idha Wijaya; Rianta Pratiwi
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 16, No 3 (2011): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Perairan Kepulauan Matasiri dipengaruhi oleh daratan Pulau Kalimantan (mainland) dan Selat Makassar.Kedua pengaruh tersebut menyebabkan adanya perbedaan karakteristik habitat yang diduga berdampak pada distribusi spasial krustasea.Metode deskriptif diterapkan pada penelitian ini. Krustasea disampling dengan metode sapuan menggunakan alat tangkap trawl demersal pada 4 stasiun yaitu, Stasiun 1, 2, 3 dan 4. Parameter fisika kimia perairan (meliputi salinitas, suhu, kedalaman, kecerahan, kekeruhan, TSS, oksigen terlarut, pH, phospat, nitrogen, dan silikat) semua diukur dengan menggunakan alat CTD (Conductivy Temperature Depth) 911 Plus. Pengukuran pH menggunakan SBE (Sea Bird Electronik) 18 pH, kecerahan dengan alat CStar Transmissometer dan kekeruhan menggunakan OBS3 (Optical Backscatter Sensor).Data dianalisis menggunakan metode statitik multivariabel yang didasarkan pada Analisis Komponen Utama (Principal Component Analysis, PCA) dan Analisis Korelasi (Corresponden Analysis, CA).Hasil analisis PCA menunjukkan bahwa habitat dapat dikelompokan menjadi tiga karakter, yaitu kelompok habitat dekat estuaria (Stasiun1 dan 4), kelompok habitat sebelah utara Kepulauan Matasiri (Stasiun 2) dan kelompok habitat sebelah selatan Kepulauan Matasiri (Stasiun 3).Kelimpahan krustasea sangat dipengaruhi oleh parameter salinitas, kecerahan, dan kedalaman. Hasil analisis CA menunjukkan bahwa terdapat perbedaan distribusi spasial jenis krustasea. Beberapa famili krustasea seperti Paguridae dan Dromiidae hanya ditemukan di Stasiun 4, sedangkan famili Alpheidae, Parthenopidae, dan Podophthalmidae hanya dapat ditemukan di Stasiun 3. Hal ini menunjukkan perbedaan karakteristik habitat mempengaruhi kelimpahan jenis krustasea tertentu. Kata kunci: krustasea, kelimpahan, karakteristik habitat, distribusi spasial The Matasiri Island waters influenced by the mainland island of Borneo and the Makassar Strait. Both impacts cause the differences of habitat characteristics of Matasiri Islands waters, which affects the differences of spatial distribution of crustacean. Descriptive methods applied in this study. Crustaceans sampled with a sweep method using demersal trawl gear in the four stations are: Station 1, 2, 3 and 4. Aquatic chemical physics parameters (including salinity, temperature, depth, brightness, turbidity, TSS, dissolved oxygen, pH, phosphate, nitrogen, and silicate) were all measured using a CTD (Conductivy Temperature Depth) 911 Plus. Measurement of pH using SBE (Sea Bird Electronic) 18 pH, the brightness using CStar Transmissometer and turbidityusing OBS3 (Optical Backscatter Sensor).Datawere analyzed using multivariable statistic method based on the Main Component Analysis (Principal Component Analysis, PCA) and Correlation Analysis (Corresponden Analysis,CA). The results of PCA analysis showed that the habitat can be grouped into three characters, namelynear the estuary habitat groups (Stations 1 and 4), the habitat north of Matasiri Islands (station2) and the habitat south of Matasiri Islands (station3). Abundance of crustaceans is strongly influenced by the parameters of salinity, brightness, and depth. CA analysis results indicate that there are differences in the spatial distribution of crustacean species. Several families of crustaceans such as Paguridae and Dromiidae only found in the Station 4,while the family Alpheidae, Parthenopidae, and Podophthalmidae only be found at Station 3. This suggests differences in habitat characteristics affect the abundance of certain crustaceans. Key words: Crustacea, abundance, habitat characteristics, spatial distribution

INTEGRATED PROGRAMS (IP) PADA ROGRAM KEMITRAAN MASYARAKAT (PKM) DI UKM BUNDA SUKOLILO BARU, KECAMATAN BULAK, SURABAYA Theresia Widihartanti; Aniek Sulestiani; Titiek Indira Agustin; Nirmalasari Idha Wijaya; Urip Prayogi
Jurnal Layanan Masyarakat (Journal of Public Services) Vol. 4 No. 1 (2020): JURNAL LAYANAN MASYARAKAT
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jlm.v4i1.2020.208-218

Sukolilo Baru is one of the tourist destination centers focused on selling dried and semi-finished fish products so that it is much sought after by tourists. However, the arrangement of processing rooms is far from adequate standards. Integrated Programs (IP) in the community service include (a) Tutorial on the cultivation of eggplant and sea cucumbers; (b) Tutorial on GMP; (c) Making crackers drying tools as appropriate technology. Drying crackers made from seafood still relies on sunlight and still uses space on the edges of the road. One of the tools needed is a weatherproof, eggplant and sea cucumber drying tool. This has become the foundation of the Faculty of Engineering and Marine Sciences of UHT to implement knowledge in its engineering field to make an effective drying tool by utilizing the limited land, which is above the storeroom of dried eggplant and sea cucumbers. By using the glass drying device, the drying time will be 3 days from 7-10 days, so that the effectiveness of the drying tool has been proven; (d) Arrangement of PIRT as the legality of the product for consumption. Thus, the Integrated Programs (IP) implemented by the FTIK community service team succeeded in improving the welfare of Sukolilo Baru, Surabaya.abstrakKelurahan Sukolilo Baru merupakan salah satu pusat tujuan wisata fokus pada penjualan produk ikan kering dan setengah jadi sehingga banyak diminati oleh wisatawan. Namun, penataan ruang pengolahan jauh dari standar memadai. Integrated Programs (IP) pada pengabdian kepada masyarakat tersebut meliputi (a) Tutorial tentang budidaya terung dan teripang; (b) Tutorial tentang GMP; (c) Pembuatan alat penjemur kerupuk sebagai teknologi tepat guna. Penjemuran bahan kerupuk berbahan baku hasil laut masih mengandalkan sinar matahari dan masih memakai ruang di pinggir-pinggir jalan. Salah satu alat yang dibutuhkan adalah alat penjemuran terung dan teripang basah yang tahan cuaca. Hal inilah yang menjadi landasan Fakultas Teknik dan Ilmu Kelautan UHT untuk mengimplementasikan pengetahuan dalam bidang tekniknya untuk membuat alat penjemur yang tepat guna dengan memanfaatkan lahan yang terbatas, yaitu di atas gudang penyimpanan terung dan teripang kering. Dengan menggunakan alat penjemur kaca tersebut, lama penjemuran menjadi 3 hari dari sebelumnya 7-10 hari, sehingga efektifitas alat penjemur tersebut telah terbukti; (d) Pengurusan PIRT sebagai legalitas produk untuk dikonsumsi. Dengan demikian, Integrated Programs (IP) yang dilaksanakan oleh tim Penmas FTIK berhasil dalam meningkatkan kesejahteraan warga Kelurahan Sukolilo Baru, Surabaya.

MANGROVE OF BERAU: ECOLOGICAL CONDITION, FISHERIES, AND MANAGEMENT OPTIONS Ivana Yuniarti; Triyanto Triyanto; Nirmalasari Idha Wijaya; Fajar Sumi Lestari; Fajar Setiawan; Sutrisno Sutrisno
Indonesian Fisheries Research Journal Vol 22, No 1 (2016): (June 2016)
Publisher : Research Center for Fisheries

Mangrove area of Berau District, East Kalimantan Province is an important buffering zone for Derawan Islands. It also becomes a distinctive habitat for commercial fisheries commodity. Land conversion into shrimp ponds has threatened its sustainability. This paper summarizing its ecological condition, fisheries, and management options presents a guideline for the decision makers about what strategies can be applied in conserving the mangrove sustainability. Overall, the ecological condition is proven to support sustainable fisheries practice; such as shrimp and crab silvofisheries. Moreover, the calculation of firewood economic value shows that a sustainable commercial firewood production is another option that can be established to support local economic activities. In addition, a well managing ecotourism may be considered by local government considering its potential for local economic growth.

Pola Sedimentasi di Teluk Lamong, Surabaya, Jawa Timur Fitri Indah Kuntari; Rudi Siap Bintoro; Nirmalasari Idha Wijaya
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 2 No 2 (2020): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v2i2.46

This research to analyze sedimentation patterns in the waters of the Lamong Bay. This research was conducted in August 2018 until May 2019. The sampling of basic sediment were using sediment grab and the sampling of suspended sediment were using nansen bottle. The data used was tide data, river discharge, velocity and direction data of sediment data. The data which was obtained from survey would be processed in the Hidro – Oceanographic Laboratory of Hang Tuah University. The data includes data on grab sediment samples and until suspended sediment. For modeling sedimentation patterns was using software SMS using river discharge data and the results of processing suspended sediment. The result data from processing models in when the high tide the sediment concentration tends to be high and at low tide the concentration tends to be low. When the high tide ocean current would lead to the bay to the river and at low tide the ocean currents will flow into the river.

ANALISIS KESUBURAN PERAIRAN BERDASARKAN KELIMPAHAN FITOPLANKTON DI MUARA SUNGAI PORONG, SIDOARJO Devi Setyowardani; Nor Sa’adah; Nirmalasari Idha Wijaya
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 1 (2021): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i1.54

The disposal of Lapindo mud which carries nutrients and other dissolved organic matter can cause mass enrichment and death of organisms due to the reduced amount of light entering the waters. The existence of phytoplankton can provide information about the state of the waters. This study aims to determine the fertility of the waters of the Porong River through the abundance of phytoplankton. This research was conducted from October to January 2021. Sampling was carried out at three stations. The plankton sampling method was carried out horizontally and identified using the Sedgwick Rafter Counting Cell (SRCC). Nitrate and phosphate water samples used for analysis were measured by Uv-Vis Spectrophotometry. Data analysis includes phytoplankton density, diversity index, uniformity index, and dominance index. The results showed that the composition of the phytoplankton species found during the observation was dominated by diatom classes (13 genera ) and dinoflagellates (2 genera). The abundance value of phytoplankton is 122.293 – 867.776 cells/m3. The water fertility status in the Porong River Sidoarjo is in the eutrophic category, namely waters with high fertility levels.

Pola Sedimentasi di Teluk Lamong, Surabaya, Jawa Timur Fitri Indah Kuntari; Rudi Siap Bintoro; Nirmalasari Idha Wijaya
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 2 No 2 (2020): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v2i2.46

This research to analyze sedimentation patterns in the waters of the Lamong Bay. This research was conducted in August 2018 until May 2019. The sampling of basic sediment were using sediment grab and the sampling of suspended sediment were using nansen bottle. The data used was tide data, river discharge, velocity and direction data of sediment data. The data which was obtained from survey would be processed in the Hidro – Oceanographic Laboratory of Hang Tuah University. The data includes data on grab sediment samples and until suspended sediment. For modeling sedimentation patterns was using software SMS using river discharge data and the results of processing suspended sediment. The result data from processing models in when the high tide the sediment concentration tends to be high and at low tide the concentration tends to be low. When the high tide ocean current would lead to the bay to the river and at low tide the ocean currents will flow into the river.

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