Sungai Barito sangat penting bagi ekonomi karena merupakan tempat budidaya dan perikanan, sumber pendapatan, dan sumber protein hewani. Makanan ikan dapat memengaruhi populasi, pertumbuhan, dan kondisi ikan. Umur, lokasi, waktu, dan alat pencernaan ikan menentukan jenis makanan yang dikonsumsi oleh setiap spesies ikan. Tujuan dari penelitian ini adalah untuk mengetahui jenis makanan apa yang dimakan ikan Sungai Barito serta mengetahui perairan air di Sungai Barito menurut struktur komunitas plankton. Dalam penelitian ini, metode pengolahan data yang digunakan adalah metode frekuensi kejadian, volumetrik, indeks preponderance, indeks kelimpahan, keanekaragaman, keseragaman, dominansi plankton, dan metode STORET. Hasil penelitian menunjukkan bahwa jenis makanan yang di sungai barito yaitu udang, fitoplankton didominasi jenis Oedocladium, Microcytis, Synedra, Chamaesiphon, Diatoma, dan Synedra. Klimpahan plankton di perairan pada Stasiun 1 lebih banyak dibandingkan Stasiun 2 di semua waktu pengambilan sampel. Selain itu hasil lambung ikan menunjukkan bahwa ikan memiliki preferensi terhadap makanannya.

Kata Kunci: Kebiasan Makan, Isi Lambung Ikan, Sungai Barito. 

ABSTRACT

The Barito River is very important for the economy because it is a place for cultivation and fisheries, a source of income, and a source of animal protein. Fish diet can affect fish population, growth and condition. The age, location, time, and digestive system of the fish determine the type of food consumed by each fish species. The aim of this research is to find out what type of food the Barito River fish eat and to understand the water in the Barito River according to the plankton community structure. In this research, the data processing methods used are the frequency of occurrence method, volumetric, preponderance index, index of abundance, diversity, uniformity, plankton dominance, and STORET method. The results of the research show that the type of food in the Barito River is shrimp, and phytoplankton is the dominant type Oedocladium, Microcytis, Synedra, Chamaesiphon, Diatoma, and Synedra. The abundance of plankton in the waters at Station 1 was greater than at Station 2 at all sampling times. Apart from that, the results of the fish stomach show that the fish have preferences for their food.

Keyword: Eating habits, fish entrails, Barito River