Electronic Theses and Dissertation

Kuda laut merupakan ikan dari family Syngnathidae dengan genus Hippocampus yang termasuk ke dalam jenis ikan bertulang sejati. Penelitian ini bertujuan untuk menganalisis kebiasaan makan kuda laut (Hippocampus spp.) di perairan Pulau Simeulue. Penelitian ini telah dilaksanakan pada bulan Oktober˗Desember 2020. Sampel diambil dari perairan Pulau Simeulue dengan menggunakan metode Purposive sampling dan pengamatan sampel di Laboratorium menggunakan metode pengamatan secara langsung pada objek penelitian menggunakan mikroskop. Parameter penelitian yang diamati adalah Indeks Bagian Terbesar (IBT) yaitu persentase frekuensi kejadian (Occurance index), persentase volume (Volumetric index), indeks bagian terbesar (Index of Preponderance). Analisis kebiasaan makan berdasarkan perbandingan panjang usus dengan panjang total tubuh ikan (Relative gut index). Berdasarkan hasil penelitian indeks bagian terbesar makanan kuda laut adalah jenis plankton Aulacoseira sp. dengan indeks terbesarnya yaitu 49,48%. Sedangkan, analisis kebiasaan makan menurut perbandingan panjang usus dengan panjang total tubuh kuda laut, sampel kuda laut yang ditemukan termasuk kedalam hewan kelas omnivora dengan nilai panjang usus relatif yaitu 65,47%.




Kata Kunci: Kuda laut, Kebiasaan Makan Ikan, Indeks Bagian Terbesar, Simeulue

Seahorses are fish from the Syngnathidae family with the genus Hippocampus which are included in the type of true bony fish. This study aims to analyze the eating habits of seahorses (Hippocampus spp.) in the waters of Simeulue Island. This research was carried out in October-December 2020. Samples were taken from the waters of Simeulue Island using the purposive sampling method and sample observations in the laboratory using the direct observation method on the research object using a microscope. The parameters studied were the Largest Share Index (LSI), namely the Occurance Index, Volumetric Index, Index of Preponderance. Analysis of eating habits based on the comparison of the length of the intestine with the total body length of the fish (Relative gut index). Results Based on the index research, the largest portion of seahorse food is the plankton type Aulacoseira sp. with the largest index of 49.48%. Meanwhile, the analysis of eating habits according to the comparison of the length of the intestine with the total body length of the horse, the sample of the seahorse which is included in the omnivorous class animal with a relative intestinal length value is 65.47%. Keywords: Seahorse, Fish Eating Habit, Largest Part Index, Simeulue