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All Journal JURNAL TEKNOLOGI LINGKUNGAN Widyariset BERITA BIOLOGI Jurnal Penelitian Perikanan Indonesia Bawal : Widya Riset Perikanan Tangkap Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Widyariset
Agus Arifin Sentosa
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ASPEK EKOLOGI PERAIRAN UNTUK PENERAPAN PERIKANAN TANGKAP BERBASIS BUDIDAYA DI WADUK PENJALIN Agus Arifin Sentosa; Amula Nurfiarini; Andika Luky Setiyo Hendrawan; Andri Warsa; Astri Suryandari; Danu Wijaya
Jurnal Penelitian Perikanan Indonesia Vol 28, No 1 (2022): (Maret) 2022
Publisher : Pusat Riset Perikanan, BRSDM KP.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jppi.28.1.2022.%p

Abstract

Waduk Penjalin adalah salah satu waduk di Kabupaten Brebes yang potensial untuk program perikanan tangkap berbasis budidaya (Culture Based Fisheries/CBF) setelah program tersebut sukses dilakukan di Waduk Malahayu. Penelitian ini bertujuan untuk mengkaji kelayakan penebaran ikan untuk pengembangan CBF di Waduk Penjalin dari beberapa aspek ekologi perairan. Survei lapangan dilakukan di Waduk Penjalin, Kabupaten Brebes pada bulan Mei, September dan Desember 2021 pada tujuh stasiun pengamatan. Kualitas air dukur secara in situ dan ex situ. Komunitas ikan diamati dengan percobaan penangkapan dan hasil tangkapan nelayan. Analisis data kualitas air dilakukan secara deskriptif. Indeks STORET digunakan untuk mengetahui status perairan. Komunitas ikan dianalisis dengan indeks relatif penting, kebiasaan makanan, luas relung dan tumpang tindih relung. Hasil pengamatan menunjukkan bahwa kualitas air di Waduk Penjalin masih mendukung terhadap kehidupan ikan. Luas waduk yang relatif kecil, kualitas air yang berstatus sedang dan tingkat kesuburan eutrofik berpotensi mendukung terhadap implementasi CBF. Komunitas ikan di waduk tersebut terdiri atas sembilan jenis ikan yang didominasi oleh jenis ikan introduksi (55,56%). Luas relung makanan beberapa jenis ikan dominan cenderung menunjukkan karakter spesialis. Secara ekologi, Waduk Penjalin berpotensi untuk dilakukan penebaran ikan, terutama untuk jenis ikan-ikan herbivora/planktivora mengingat status perairan yang subur.Penjalin Reservoir is one of the reservoirs in Brebes Regency that has the potential for a culture-based fisheries (CBF) program after being successfully implemented in Malahayu Reservoir. This study aimed to examine the feasibility of stocking fish for CBF implementation in the Penjalin Reservoir from several aspects of aquatic ecology. The field survey was conducted at seven observation stations in Penjalin Reservoir, Brebes Regency in May, September and December 2021. Water quality was examined in-situ and ex-situ. The fish community was observed by catch-experimenting and from fishers’ catch. Water quality data analysis was carried out descriptively. The STORET index was used to determine the status of the waters. Fish communities were analyzed by relative importance index, food habits, niche breadth, and niche overlap. The results showed that the water quality in the Penjalin Reservoir was still supported for fish living. The relatively small reservoir area, moderate water quality, and eutrophic status had the potential to support the implementation of CBF. The fish community in the reservoir consists of nine species of fish which were dominated by introduced fish species (55.56%). The food niche breadth of several dominant fish species tended to the specialist character. Ecologically, the Penjalin Reservoir had the potential for stocking fish, especially for herbivore/planktivore fish species considering the status of eutrophic waters.
KAJIAN RISIKO IKAN-IKAN ASING DI WADUK CIRATA, JAWA BARAT Agus Arifin Sentosa; Ernik Yuliana; Lismining Pujiyani Astuti
BAWAL Widya Riset Perikanan Tangkap Vol 14, No 2 (2022): (Agustus) 2022
Publisher : Politeknik Kelautan dan Perikanan Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/bawal.14.2.2022.105-118

Abstract

Waduk Cirata telah terindikasi terdapat ikan-ikan asing, namun belum terdapat kajian risikonya. Penelitian ini bertujuan untuk mengidentifikasi risiko keberadaan ikan-ikan asing di Waduk Cirata. Penelitian dilakukan pada bulan Desember 2021 hingga Februari 2022 di enam stasiun pada Waduk Cirata, Jawa Barat dengan metode survei lapangan. Analisis data dilakukan dengan indeks relatif penting dan penilaian risiko berdasarkan Pedoman Analisis Risiko Spesies Asing Invasif. Hasil menunjukkan bahwa teridentifikasi sebanyak 17 spesies ikan asing (65,38%) dari total 26 jenis ikan yang tertangkap di Waduk Cirata selama periode penelitian. Ikan nila (Oreochromis niloticus) memiliki kelimpahan yang tertinggi (34,70%) diikuti oleh ikan oskar (Amphilophus citrinellus) sebesar 11,86%. Risiko keberadaan ikan-ikan asing di Waduk Cirata terdiri atas 29,4% termasuk ikan asing kategori berisiko tinggi dan sisanya (70,6%) memiliki risiko sedang. Ikan asing berisiko tinggi adalah ikan oskar. Keberadaan ikan-ikan asing dengan tujuan introduksi tertentu diperbolehkan setelah melalui kajian risiko. Ikan-ikan asing yang invasif, berbahaya dan/atau merugikan yang perlu dilakukan pengendalian populasi hingga pemusnahan di Waduk Cirata adalah: Amphilophus citrinellus, Cichlasoma trimaculatum, Hemichromis elongatus, Mayaheros urophthalmus, dan Parachromis managuensis.Cirata Reservoir has indicated the presence of exotic fishes, but there has been no risk assessment. This study aimed to identify the risk of alien fishes in the Cirata Reservoir. The research was conducted from December 2021 to February 2022 at six stations in the Cirata Reservoir, West Java, with a field survey method. Data was analyzed by relative importance index and risk assessment based on the Guidelines for Risk Analysis of Invasive Alien Species. The results showed there are 17 alien fish species (65.38%) from 26 fish species caught during the study. The Nile tilapia (Oreochromis niloticus) had the highest abundance (34.70%) followed by the Midas cichlid (Amphilophus citrinellus) at 11.86%. The risk of the alien fishes in the Cirata Reservoir comprised 29.4% of the high risk and 70.6% of the moderate risk. The high risk of alien fishes was the Midas cichlid. Alien fish introduction for certain purpose was allowed after having a risk assessment. The invasive, dangerous and/or harmful alien fishes that need to be controlled and eradicated in the Cirata Reservoir were: Amphilophus citrinellus, Cichlasoma trimaculatum, Hemichromis elongatus, Mayaheros urophthalmus, and Parachromis managuensis.
Co-Authors Amula Nurfiarini Andika Luky Setiyo Hendrawan Andri Warsa Andri Warsa Arip Rahman Astri Suryandari Danu Wijaya Dharmadi Dharmadi Dimas Angga Hedianto Djumanto Djumanto Ernik Yuliana Hendra Satria Irwan Jatmiko Lismining Pujiyani Astuti Lismining Pujiyani Astuti Prihatiningsih Prihatiningsih Umi Chodrijah Umi Chodrijah