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DISTRIBUSI UKURAN DAN KARAKTER MORFOMETRIK RAJUNGAN (Portunus pelagicus) YANG DIDARATKAN DI TPI SUNGAI KAKAP KABUPATEN KUBU RAYA Br Purba, Anjelina Firyanti; Soetginya, Widadi Padmarsari; Anzani, Yunita Magrima
Jurnal Sains Pertanian Equator Vol 15, No 1
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v15i1.94836

Tempat Pelelangan Ikan (TPI) Sungai Kakap merupakan salah satu sentra pendaratan hasil tangkapan rajungan (Portunus pelagicus) di Kabupaten Kubu Raya, Kalimantan Barat. Penelitian ini dilakukan untuk mengetahui distribusi ukuran dan karakter morfometrik rajungan yang didaratkan di TPI Sungai Kakap. Penelitian dilaksanakan pada Februari"“Maret 2025 dengan metode pengambilan sampel secara acak sebanyak dua kali dalam sebulan selama dua bulan. Parameter yang diamati meliputi nisbah kelamin, distribusi frekuensi ukuran, pola pertumbuhan, dan karakter morfometrik. Hasil penelitian menunjukkan bahwa dari 74 ekor rajungan yang tertangkap, didominasi oleh betina dengan rasio kelamin 1:1,64 (X ² = 4,378 > 3,841). Distribusi ukuran menunjukkan sebagian besar rajungan yang tertangkap berada pada kategori dewasa. Pola pertumbuhan rajungan jantan bersifat isometrik (b = 2,571), sedangkan betina menunjukkan pertumbuhan alometrik positif (b = 3,5605). Dari sepuluh karakter morfometrik yang diuji, hanya karakter Front Margin Length (FML) yang berbeda signifikan antar jenis kelamin, menunjukkan adanya dimorfisme seksual. Hasil penelitian ini memberikan kontribusi sebagai dasar data biologis untuk pengelolaan rajungan secara berkelanjutan, khususnya dalam penentuan kebijakan ukuran tangkap minimum dan pelestarian populasi rajungan di wilayah TPI Sungai Kakap.

POLA PERTUMBUHAN DAN FAKTOR KONDISI IKAN BETUTU ( Oxyeleotris marmorata) DI PERAIRAN SUNGAI KAPUAS KECAMATAN TERENTANG KABUPATEN KUBU RAYA Wahyuni, Eva Sri; Sirojul Munir, Ahmad Mulyadi; Anzani, Yunita Magrima
Akuatik Tropis: Journal of Tropical Aquatic Resource Management Vol 2, No 2 (2024): Vol 2, No 2 (2024): Jurnal Akuatik Tropis
Publisher : Department of Aquatic Resource Management, Faculty of Agriculture, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/akuatik tropis.v2i2.86263

Terentang adalah sebuah Kecamatan di Kabupaten Kubu Raya yang terdiri dari 10 Desa dengan luas wilayah 746,40 km ² dan jumlah penduduk 13,416 jiwa. Tujuan menganalisis pola pertumbuhan, faktor kondisi dan faktor lingkngan Ikan Betutu (Oxyeleotris marmorata) di perairan Kecamatan Terentang Kabupaten Kubu Raya. Teknik yang digunakan dalam pengambilan data adalah menggunakan metode purposive sampling, yaitu pengambilan sampel ikan yang dilakukan secara terpilih berdasarkan stasiun yaitu stasiun ke-1 dekat dermaga pelabuhan kapal dan stasiun ke-2 di desa Kaliampo. Penelitian dilaksanakan selama 1 bulan pada bulan Juni 2024 di perairan Kecamatan Terentang Kabupaten Kubu Raya. Pola pertumbuhan Ikan Betutu (Oxyeleotris marmorata) di Perairan Kecamatan Terentang Kabupaten Kubu Raya yaitu bersifat alometrik negatif karena nilai b 3, Nilai faktor kondisi secara keseluruhan ikan betutu yang didapat di perairan kecamatan terentang pada rata-rata 0,46053-2,64429, ini menandakan faktor kondisi Ikan Betutu (Oxyeleotris marmorata) di Perairan Kecamatan Terentang Kabupaten Kubu Raya berbentuk kurus pipih, Kondisi perairan Kecamatan Terentang Kabupaten Kubu Raya masi sesuai untuk kehidupan Ikan Betutu.

In adaption of river continuum concept as correlation to macroinvertebrates functional feeding group in Cisadane Rivers headwater Anzani, Yunita Magrima; Krisanti, Majariana; Wardiatno, Yusli
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 2 (2023): AUGUST 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.2.28372

River Continuum Concept (RCC) is an approach that describes the dynamic changes in the river system, the changes that occur are physical conditions (order of the river, canopy cover, and land use) and also the structure and function of communities. Functional feeding groups (FFG) of macroinvertebrates are related to environmental gradients in aquatic systems, including river ecosystem attributes. This study aimed to correlate the function of the macroinvertebrate communities with Cisadanes River headwater conditions based on RCC and also to estimate the attributes of the river ecosystem. This research was conducted in the headwaters of the Cisadane River, West Java-Indonesia. One of Cisadanes River headwaters was located in Mount Halimun-Salak National Park. Macroinvertebrates were collected from four sites inside the park (stations 1, 2, 3, and 4) and from two sites outside the park (stations 5 and 6). Collections were made twice a month, from April to June 2015 using a Surber sampler. The results showed that shredders and predators were relatively higher at stations inside the national park than at those outside the national park. While scrappers and collectors at stations located inside the national park were relatively lower than at stations outside the park. The value of the P/R ratio showed that all of the stations were heterotrophy. CPOM/FPOM ratio represents that shredder availability is high enough at stations inside the national park. While TFPOM/BFPOM ratio is slightly below the normal threshold value. HSI showed that the condition of the riverbed substrate stability is quite good. Composition changes of macroinvertebrates showed suitability with RCC. River ecosystem attributes and abiotic stream characteristics of Cisadanes River headwater support macroinvertebrate life and are in accordance with RCC.Keywords:EcologyMacroinvertebrateNational ParkRiparianRiver

In adaption of river continuum concept as correlation to macroinvertebrates functional feeding group in Cisadane Rivers headwater Anzani, Yunita Magrima; Krisanti, Majariana; Wardiatno, Yusli
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 2 (2023): AUGUST 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.2.28372

River Continuum Concept (RCC) is an approach that describes the dynamic changes in the river system, the changes that occur are physical conditions (order of the river, canopy cover, and land use) and also the structure and function of communities. Functional feeding groups (FFG) of macroinvertebrates are related to environmental gradients in aquatic systems, including river ecosystem attributes. This study aimed to correlate the function of the macroinvertebrate communities with Cisadanes River headwater conditions based on RCC and also to estimate the attributes of the river ecosystem. This research was conducted in the headwaters of the Cisadane River, West Java-Indonesia. One of Cisadanes River headwaters was located in Mount Halimun-Salak National Park. Macroinvertebrates were collected from four sites inside the park (stations 1, 2, 3, and 4) and from two sites outside the park (stations 5 and 6). Collections were made twice a month, from April to June 2015 using a Surber sampler. The results showed that shredders and predators were relatively higher at stations inside the national park than at those outside the national park. While scrappers and collectors at stations located inside the national park were relatively lower than at stations outside the park. The value of the P/R ratio showed that all of the stations were heterotrophy. CPOM/FPOM ratio represents that shredder availability is high enough at stations inside the national park. While TFPOM/BFPOM ratio is slightly below the normal threshold value. HSI showed that the condition of the riverbed substrate stability is quite good. Composition changes of macroinvertebrates showed suitability with RCC. River ecosystem attributes and abiotic stream characteristics of Cisadanes River headwater support macroinvertebrate life and are in accordance with RCC.Keywords:EcologyMacroinvertebrateNational ParkRiparianRiver

PENDUGAAN STOK IKAN MANYUNG (ARIUS THALASSINUS) YANG DIDARATKAN DI PELABUHAN PERIKANAN PANTAI SUNGAI RENGAS Putri Ananta, Marzela; Soetignya, FX Widadi Padmarsari; Anzani, Yunita Magrima
Jurnal Sains Pertanian Equator Vol 15, No 2: In Press
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v15i2.99919

Ikan manyung (Arius thalassinus) merupakan salah satu komoditas perikanan demersal bernilai ekonomis penting yang banyak didaratkan di Pelabuhan Perikanan Pantai (PPP) Sungai Rengas, Kalimantan Barat. Produksi ikan manyung menunjukkan fluktuasi setiap tahunnya sehingga diperlukan kajian stok untuk mendukung pengelolaan berkelanjutan. Penelitian ini bertujuan untuk menganalisis kondisi stok ikan manyung melalui perhitungan hasil tangkapan per satuan upaya (Catch Per Unit Effort/CPUE), potensi maksimum lestari (Maximum Sustainable Yield/MSY), tingkat pemanfaatan (TPc), serta jumlah tangkapan yang diperbolehkan (Total Allowable Catch/TAC). Data yang digunakan berupa data sekunder produksi tangkapan dan upaya penangkapan dengan jaring insang selama periode 2015–2024. Analisis dilakukan menggunakan model surplus produksi Schaefer. Hasil penelitian menunjukkan nilai MSY sebesar 15.338 kg/tahun dengan upaya optimum sebesar 88 unit/tahun. Tingkat pemanfaatan ikan manyung rata-rata sebesar 89,18% yang tergolong padat tangkap, sedangkan TAC ditetapkan sebesar 12.270 kg/tahun (80% dari MSY). Beberapa tahun menunjukkan kondisi pemanfaatan melebihi TAC, yaitu tahun 2017, 2020, 2022, dan 2024, sehingga berpotensi mengalami overfishing. Hasil penelitian ini menegaskan perlunya pengendalian upaya dan penerapan kuota tangkapan berbasis TAC guna menjaga keberlanjutan stok ikan manyung di PPP Sungai Rengas.

KEBIASAAN MAKAN DAN MAKANAN IKAN KELABAU (Osteochilus melanopleura) DI SUNGAI SAMIH DESA KUMPANG TENGAH KECAMATAN SEBANGKI KABUPATEN LANDAK Wati, Kristina Eka; Soetigynya, Widadi Padmarsari; Anzani, Yunita Magrima
Jurnal Sains Pertanian Equator Vol 15, No 2: In Press
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v15i2.101310

Samih River, located in Kumpang Tengah Village, Sebangki District, Landak Regency, is widely utilized by the local community for various activities, including excessive fishing. This activity has caused a decline in the population of economically valuable fish species, namely the kelabau fish (Osteochilus melanopleura). This study was conducted to analyze the feeding habits and diet of kelabau fish in Kumpang Tengah Village, Sebangki District, Landak Regency, from January to March 2025, consisting of three research stations based on environmental conditions. Kelabau fish were collected using gill nets and fishing lines, and data analysis was carried out using the Index of Preponderance (IP), the Index of Stomach Content (ISC), and relative gut length. The results showed that the main food of kelabau fish was phytoplankton with an IP value of 98.25%, followed by supplementary foods such as aquatic plants and zooplankton with IP values of 1.74% and 0.014%, respectively. Kelabau fish are herbivorous, as indicated by the relative gut length (ISC) values found: 1.232% at station three, 1.081% at station two, and 0.980% at station one.

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