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All Journal Jurnal Riset Biologi dan Aplikasinya BIO-SAINS | Jurnal Ilmiah Biologi
Tresna Sulung, Cahya Ajeng Valenta
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology

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KEANEKARAGAMAN JENIS IKAN DI SUNGAI KAWASAN GRESIK SELATAN FISH SPECIES DIVERSITY IN RIVERS OF SOUTH GRESIK AREA Tresna Sulung, Cahya Ajeng Valenta; Afnani, Moh. Royhan; Hamidah, Safira Aini Ilmi; Rahayu, Dwi Anggorowati
BIO-SAINS : Jurnal Ilmiah Biologi Vol 5 No 1 (2025): Bio-Sains - Jurnal Ilmiah Biologi | Maret 2025
Publisher : Fakultas Sains dan Teknologi, Universitas Islam As-Syafi'iyah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34005/bio-sains.v5i1.4827

Abstract

Keanekaragaman jenis ikan air tawar tergantung pada kualitas air sungai. Penurunan kualitas air sungai akibat limbah industri akan berdampak pada kehidupan. Penelitian ini bertujuan untuk mengidentifikasi dan menganalisis keanekaragaman jenis ikan di dua lokasi sungai kawasan Gresik Selatan, yakni Sungai Driyorejo dan Sungai di Perumahan Sumput Asri. Metode yang digunakan dalam penelitian ini adalah metode survei dan eksploratif melalui pengambilan sampel secara langsung pada lokasi penelitian dengan metode tangkap menggunakan jaring, seser, dan pancing. Identifikasi ikan dilakukan melalui karakter morfometri, meristik, dan morfologi secara langsung di laboratorium. Hasil penelitian menunjukkan terdapat enam spesies ikan dari enam famili, yaitu Oreochromis mossambicus, Anabas testudineus, Aplocheilus panchax, Hypocarpus perdalis, Clarias gariepinus, dan Monopterus albus, dengan jumlah total 14 individu. Indeks keanekaragaman Shannon-Wiener (H') sebesar 1,574 mengindikasikan tingkat keanekaragaman yang sedang. Jenis ikan yang paling dominan adalah Aplocheilus panchax (Gatul), yang diduga memiliki toleransi tinggi terhadap kualitas air yang rendah akibat aktivitas industri di sekitar sungai. Penelitian ini menunjukkan bahwa kondisi ekologis sungai di kawasan Gresik Selatan berada pada tingkat tekanan sedang, dan diperlukan upaya pemantauan serta pengelolaan lingkungan untuk menjaga kelestarian spesies ikan lokal.
Morphology and Molecular Identification of Cyprinidae from the Sumber Umbulan Ngenep, Malang Regency, East Java Naya Rabbani, Calista; Damayanti, Ayu Elysia; Tresna Sulung, Cahya Ajeng Valenta; Rahayu, M.Si, Dwi Anggorowati; Nugroho, Endik Deni; Rusdianto, Rusdianto; Binti Mamat, Noorhidayah
Jurnal Riset Biologi dan Aplikasinya Vol. 7 No. 2 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrba.v7n2.p142-159

Abstract

The genus Tor comprises freshwater fish belonging to the Cyprinidae family, recognized for their remarkable diversity and broad distribution across Southeast Asia, including Indonesia. Despite this, data on Tor species in certain regions are limited, highlighting the need for additional research to confirm their presence. Therefore, this study aims to examine the genetic diversity and phylogenetic reconstruction of the species observed in Sumber Umbulan Ngenep using the COI gene as a DNA barcode marker. The research was conducting using the Purposive Random Sampling method and fin tissues were preserved in 96% ethanol for DNA analysis. The species found at Sumber Umbulan Ngenep were observed morphologically using a phenetic approach. Fins from each fish sample were collected and subjected to PCR, sequence analysis using the BOLD System, phylogenetic tree reconstruction, ABGD analysis, and QR barcoding. The results of morphological, genetic, and phylogenetic tree reconstruction based on the COI gene indicate that three species have been identified at Sumber Umbulan Ngenep, namely Tor douronensis, Tor tambra, and Barbonymus gonionotus. Based on the phenetic approach, three apomorphies and five automorphies were identified, indicating the relatedness of the observed species with the reference species. The phylogenetic tree topology shows an unambiguous branching pattern for the observed sample cluster with Poecilia reticulata as the outgroup. This study is the first to identify the species present at Sumber Umbulan Ngenep, Malang Regency, East Java, Indonesia. The findings provide new information about the existence of these species and can serve as a basis for future conservation and management strategies.
Co-Authors Afnani, Moh. Royhan Binti Mamat, Noorhidayah Damayanti, Ayu Elysia Dwi Anggorowati Rahayu Endik Deni Nugroho Hamidah, Safira Aini Ilmi Naya Rabbani, Calista Rahayu, M.Si, Dwi Anggorowati Rusdianto Rusdianto, Rusdianto