Faktor Lingkungan Yang Mempengaruhi Produktivitas Menggunakan Aplikasi Analisis Jalur Di Tambak Bandeng Kabupaten Indramayu, Provinsi Jawa Barat

Abstract

ABSTRAKFaktor lingkungan berupa kualitas tanah dan air tambak adalah faktor yang sangat menentukan produktivitas tambak di Kabupaten Indramayu, Provinsi Jawa Barat.Namun demikian, belum ada informasi mengenai pengaruh faktor lingkungan terhadap produksi tambak bandeng di tambak Kabupaten Indramayu. Oleh karena itu dilakukan penelitian yang bertujuan untuk mengetahui pengaruh langsung atau tidak langsung kualitas tanah dan air terhadap produksi total di tambak Kabupaten Indramayu. Penelitian dilaksanakan di kawasan tambak Kecamatan Pasekan, Lohbener, Arahan, Cantigi, Losarang, Kandanghaur, Indramayu, Balongan dan Krangkeng. Data kualitas tanah dan air tambak dianalisis menggunakan aplikasi analisis jalur denganmenerapkan model mediasi, model rekursif dan model persamaan dua jalur di mana peubah kualitas tanah sebagai peubah bebas dan peubah kualitas air dan produksi tambak bandeng sebagai peubah tidak bebas. Hasil penelitian menunjukkan bahwa hasil analisis jalur kualitas tanah ada 2 peubah yang mempengaruhi produksi monokultur ikan bandeng yaitu: redoks (Eh) tanah dan pHF, sedangkan peubah kualitas air ada 3 peubah yang mempengaruhi produksi tambak ikan bandeng di Kabupaten Indramayu yaitu TSS (Padatan Tersuspensi) air, Bahan Organik Total (BOT) dan kandungan besi air. Redoks tanah mempunyai nilai pengaruh langsung sebesar -0,451 sedangkan pHF tanah senilai -0,305 terhadap produksi ikan bandeng di tambak. TSS air memiliki nilai pengaruh langsung sebesar 0,346, BOT air dengan nilai pengaruh langsung -0,291 dan kandungan besi (Fe) air sebesar -0,416 yang menunjukkan bahwa dari kelima peubah tanah dan air yang mempunyai nilai pengaruh langsung tersebut, nilai pHF < 0,3 sedangkan peubah lainnya yaitu Eh tanah, TSS air, BOT air dan Fe air < 0,2. Kata kunci: analisis jalur, bandeng, lingkungan, tambak, Indramayu ABSTRACT Environmental factors such as soil and water quality of ponds determine ponds productivity Indramayu district, West Java Province. However, there is no information on the effects of environmental factors on the production of milkfish in milkfish ponds in Indramayu regency. This research was aimed to determine the direct or indirect effects of pond soil and water quality on total pond production of Indramayu district. The experiment was conducted in

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