Analisis Prey Predator Ikan Sardinella spp. Menggunakan Uji Kebiasaan Makan Ikan yang Didaratkan di Tempat Pendaratan Ikan Pantai Labu Kabupaten Deli Serdang Provinsi Sumatera Utara

Abstract

Research Analysis of Prey Predators of Sardinella spp. using the Eating Habits Test at Tempat Pendaratan Ikan Pantai Labu, Deli Serdang Regency, North Sumatra Province, it was carried out in September - November 2022. The purpose of this study was to determine the food habits and prey levels of Sardinella spp. landed at TPI Pantai Labu, Deli Serdang Regency, North Sumatra Province. The method used in this research is purposive sampling method with sampling once per month. The number of fish samples obtained were 209 S. gibbosa fish while 150 S. fimbriata fish samples. Sardinella spp. belongs to the omnivorous fish tend to be herbivores. Where the S gibbosa fish utilizes phytoplankton as the main food while molluscs, worms, leaf pieces as complementary food and zooplankton as additional food. While the fish S. fimbriata utilize phytoplankton and molluscs as the main food while worms, shrimp as complementary food while zooplankton and plant fragments as additional food. S. gibbosa and S. fimbriata fish are included in the same prey predator level which is included in the moderately competitive fish relationship because they have the same main food and have overlapping values with moderate criteria