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All Journal Jurnal Teknologi Perikanan dan Kelautan BULETIN OSEANOGRAFI MARINA Jurnal Kelautan Tropis Albacore : Jurnal Penelitian Perikanan Laut Jurnal Akuatiklestari
Aditya Bramana, Aditya
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science Library & Information Science

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Aspek Biologi Teripang Parean (Holothuria hilla) yang Ditangkap di Perairan Jepara Jawa Tengah Salsabila, Astrhia Pawitra; Suharti, Ratna; Irawan, Hendra; Bramana, Aditya
Akuatiklestari Vol 8 No 1 (2024): Jurnal Akuatiklestari
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Ilmu Kelautan dan Perikanan, Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/akuatiklestari.v8i1.7041

Abstract

Penelitian tentang Aspek Biologi Teripang Parean (Holothuria hilla) bertujuan untuk mengetahui hubungan panjang berat, indeks kematangan gonad (IKG), tingkat kematangan gonad (TKG), fekunditas, dan ukuran biologi minimum di Perairan Jepara. Penelitian ini dilakukan dari bulan Agustus 2023 hingga Oktober 2023. Lokasi penelitian dibagi menjadi dua Lokasi yaitu, Kelompok Usaha Bersama (KUB) Berkah Samudera dan nelayan Ujungbatu. Metode yang digunakan adalah metode random sampling dengan melakukan pengukuran Teripang Parean pada dua Lokasi tersebut sebanyak 1000 ekor. Berdasarkan 1000 ekor sampel Teripang Parean tersebut dilakukan pengukuran panjang bobot, selanjutnya teripang dibedah menggunakan pisau untuk mengetahui Tingkat kematangan gonad maupun pengukuran berat gonad untuk mengetahui indeks kematangan gonad. Kemudian dipisahkan 40 ekor Teripang Parean betina yang termasuk dalam TKG IV dan TKG V untuk perhitungan fekunditasnya, Data hasil penelitian menunjukkan bahwa Teripang Parean yang tertangkap di Perairan Jepara mempunyai pola pertumbuhan allometrik negatif yaitu pertambahan panjang lebih cepat dari pertambahan bobot, tingkat kematangan gonad (TKG) rata-rata adalah TKG I, panjang rata-rata adalah 14 - 15 cm dan bobot rata-rata adalah 50,5 gram; rata-rata fekunditasnya adalah 4.506 - 12.917  butir telur.
OBSERVASI DAERAH PENANGKAPAN IKAN DI PERAIRAN LAUT JAWA DAN SELAT MAKASSAR Larasati, Rakhma Fitria; Jaya, Made Mahendra; Mahardi, I Gusti Ngurah Kadek Hary; Putra, Angkasa; Bramana, Aditya; Aini, Sarifah; Hamdani, Hamdani; Ariana, Made
Jurnal Teknologi Perikanan dan Kelautan Vol 15 No 2 (2024): JUNI 2024
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24319/jtpk.15.203-210

Abstract

Fishing grounds in the Java Sea and Makassar Strait are important fishing areas for fishermen. The aim of this research is to analyze the process of determining fishing ground (DPI), explain the results of observations of water temperature and salinity in each DPI that has been determined, and identify the type of catch, using the Tirta Putra Kencana I Fishing Boat (fishing equipment purse seine). This research was conducted at Java Sea and Makassar Strait from December 2022 until April 2023. The research methodology employed was observation and the analysis used was descriptive analysis. Primary data were obtained through on-site observations, including the determination of FG and the measurement of temperature, and salinity at each FG location. The selection of FG is based on several criteria, including fishing license areas, non-interference with commercial shipping, safe water conditions, and minimal impact from adverse weather in the region. Temperature and salinity measured indicated that, on average, the Java Sea and the Makassar Strait waters exhibited similar characteristics. However, FG near the coastline showed lower temperatures and higher salinity levels. The predominant catch consists of shortfin scad (Decapterus macrosoma) dan Indian scad (Decapterus russelli) inhabiting offshore waters, followed by coastal species such as Indian oil sardine (Sardinella sp.). Large pelagic fish species were more commonly captured in the western fishing grounds.
Analisis Vegetasi Mangrove Berdasarkan Faktor Lingkungan Perairan di Kawasan Pesisir Kabupaten Pati Rahman, Rahman; Bramana, Aditya; Suharti, Ratna; Irawan, Hendra
Buletin Oseanografi Marina Vol 14, No 1 (2025): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v14i1.62083

Abstract

Kabupaten Pati terletak di pesisir utara Pulau Jawa, pantainya berlumpur dan sebagian wilayah ditumbuhi mangrove. Dari tahun ke tahun, hutan mangrove di Kabupaten Pati di beberapa kecamatan mengalami penurunan kuantitas. Penelitian ini bertujuan menganalisis vegetasi ekosistem mangrove berdasarkan faktor lingkungan perairan di Kabupaten Pati, Jawa Tengah untuk mengetahui kondisi dan struktur komunitas mangrove daerah tersebut. Penelitian ini dilaksanakan dari 21 Agustus sampai dengan 12 Oktober. Pengumpulan data yang dilakukan dengan metode observatif. Pengambilan data mangrove menggunakan metode Line Transect Plot. Berdasarkan hasil penelitian didapatkan lima jenis mangrove yaitu Avicennia marina, Rhizophora mucronata, Acanthus ilicifolius, Excoecaria agallocha, dan Sonneratia caseolaris. kerapatan jenis pohon dan semai mangrove >1500 tergolong sangat rapat serta pancang tergolong rendah-sangat rapat, frekuensi jenis pohon tertinggi ialah Avicennia marina dengan nilai 1, tutupan jenis pohon berkisar  0,292%/m2-0,623%/m2 dan INP tingkat  pohon terbesar ialah spesies Avicennia marina berkisar 246,1%-300%. Indeks biologi menunjukkan keanekaragaman mangrove stasiun penelitian berkategori rendah, keseragaman rendah-sedang, dan dominansi berkategori tinggi. Kualitas fisika dan kimia yang diukur pada tiap stasiun penelitian dikategorikan normal. Terdapat 6 spesies biota yang ditemukan yang berasosiasi yaitu Boleophthalmus boddarti, Boleophthalmus pectinirostris, Scylla serrata, Telescopium telescopium, Cerithidea cingulate dan Ellobium aurisjudae. Dari hasil penelitian tersebut, maka hutan mangrove Kabupaten Pati perlu dijaga dan dilakukan upaya-upaya dalam pelestariannya.
Spatial Variability of Nutrients and Chlorophyll-A as Contributing Factors of Trophic Condition in Kendari Bay, Southeast Sulawesi Rahayu, Siti Mira; Azzahra, Mutiah; Irawan, Hendra; Salwiyah, Salwiyah; Sari, Iya Purnama; Alsita, Indah; Bramana, Aditya; Maulita, Mira
Jurnal Kelautan Tropis Vol 28, No 2 (2025): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v28i2.26579

Abstract

Estuaries and coastal waters are heavily influenced by anthropogenic activities and environmental factors, which can lead to ecosystem degradation, increased nutrients, and the risk of eutrophication. Kendari Bay, with its complex hydrodynamic conditions and various human activities in the vicinity, requires an analysis of the distribution of nutrients and chlorophyll-a (chl-a) to estimate the potential for eutrophication and its impact on aquatic ecosystems. This research was conducted in March-May 2023 at six stations in Kendari Bay. The distribution of nutrients in Kendari Bay revealed a varied pattern, with DIN concentrations higher in the “neck area” or narrow parts of the bay, phosphates more concentrated in the inner part due to slow water flow, and silica more abundant in estuaries because it comes from weathering rocks carried by river flows. Chl-a concentration tended to correspond DIN pattern, suggesting that phytoplankton growth was more influenced by nitrogen nutrients than phosphorus nutrients, as supported by an N:P ratio of less than 16. Overall, Kendari Bay was classified as mesotrophic with a relatively uniform trophic level due to morphological and hydrodynamic characteristics that narrow towards the sea and a low flushing rate. A comprehensive approach to managing human activities from upstream to downstream must be performed effectively to protect the bay area from eutrophication and environmental decline due to excessive nutrient runoff from land-based activities.
Aspek Biologi Teripang Parean (Holothuria hilla) yang Ditangkap di Perairan Jepara Jawa Tengah Salsabila, Astrhia Pawitra; Suharti, Ratna; Irawan, Hendra; Bramana, Aditya
Akuatiklestari Vol 8 No 1 (2024): Jurnal Akuatiklestari
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Ilmu Kelautan dan Perikanan, Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/akuatiklestari.v8i1.7209

Abstract

Penelitian tentang Aspek Biologi Teripang Parean (Holothuria hilla) bertujuan untuk mengetahui hubungan panjang berat, indeks kematangan gonad (IKG), tingkat kematangan gonad (TKG), fekunditas, dan ukuran biologi minimum di Perairan Jepara. Penelitian ini dilakukan dari bulan Agustus 2023 hingga Oktober 2023. Lokasi penelitian dibagi menjadi dua Lokasi yaitu, Kelompok Usaha Bersama (KUB) Berkah Samudera dan nelayan Ujungbatu. Metode yang digunakan adalah metode random sampling dengan melakukan pengukuran Teripang Parean pada dua Lokasi tersebut sebanyak 1000 ekor. Berdasarkan 1000 ekor sampel Teripang Parean tersebut dilakukan pengukuran panjang bobot, selanjutnya teripang dibedah menggunakan pisau untuk mengetahui Tingkat kematangan gonad maupun pengukuran berat gonad untuk mengetahui indeks kematangan gonad. Kemudian dipisahkan 40 ekor Teripang Parean betina yang termasuk dalam TKG IV dan TKG V untuk perhitungan fekunditasnya, Data hasil penelitian menunjukkan bahwa Teripang Parean yang tertangkap di Perairan Jepara mempunyai pola pertumbuhan allometrik negatif yaitu pertambahan panjang lebih cepat dari pertambahan bobot, tingkat kematangan gonad (TKG) rata-rata adalah TKG I, panjang rata-rata adalah 14-15 cm dan bobot rata-rata adalah 50,5 gram; rata-rata fekunditasnya adalah 4.506 - 12.917  butir telur.
SUSTAINABILITY LEVEL LEMURU (SARDINELLA LEMURU) MANAGEMENT ECONOMIC AND SOCIAL DIMENSION IN THE BALI STRAIT'S WATERS Tanjov, Yulia Estmirar; Satyawan, Noar Muda; Bramana, Aditya; Jaya, Made Mahendra; Khikmawati, Liya Tri; Sarasati, Wulandari; Mainnah, Muth; Azis, Muh. Arkam; Purwanto, Agus
Jurnal Penelitian Perikanan Laut (Albacore) Vol 9 No 2 (2025): Albacore
Publisher : Departemen PSP IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/core.9.2.175-182

Abstract

This study aims to evaluate the persistence of lemuru management in the waters of the Bali Strait from social and economic perspectives. The methodology involves observations and interviews. Data utilized are based on direct observations and interviews with fishermen in the Pengambengan village. Fishermen interviewed were randomly selected and considered to represent the total lemuru catch using purse seines. Data were analyzed using Monte Carlo analysis with the RAPFISH method to determine which behaviors impact each social and economic factor. RAPFISH ordination results in the economic domain showed an index of 48,36, while in the social dimension, it had an index value of 44,48. These index results indicate that lemuru fisheries management for both economic and social dimensions is deemed less sustainable. Key words: lemuru, fisheries management, PPN Pengambengan
Co-Authors AGUS PURWANTO Alsita, Indah Ariana, Made Azis, Muh. Arkam Azzahra, Mutiah Gatot, Iptu Hamdani Hamdani Hendra Irawan Iya Purnama Sari Jabbar, Meuthia Aula Larasati, Rakhma Fitria Liya Tri Khikmawati, Liya Tri Made Mahendra Jaya Mahardi, I Gusti Ngurah Kadek Hary MAINNAH, MUTH Maulita, Mira Noar Muda Satyawan Prasetio, Darma Putra, Angkasa Rahayu, Siti Mira Rahman Rahman Salsabila, Astrhia Pawitra Salwiyah, Salwiyah Sarasati, Wulandari Sarifah Aini Suharti, Ratna Tanjov, Yulia Estmirar Zulkifli, Dadan