STUDI MORFOLOGI INSANG IKAN YANG DIBUDIDAYAKAN DI AIR GAMBUT KABUPATEN BANJAR SEBAGAI SUMBER BELAJAR BIOLOGI

Peatlands are one of the typical ecosystems that have extreme environmental conditions, such as high acidity levels and low dissolved oxygen levels, making them a challenging environment for freshwater fish life. This study aims to describe the gill morphology of fish cultivated in peat waters of Banjar district and explore the potential of the research results as a source of learning. The research approach used is qualitative descriptive through direct observation of the gill morphological structure of two types of local fish, namely Snakehead fish (Channa striata) and betok fish (Anabas testudineus) using a microscope. The results of the study sjowed that both types of fish have gills with typical structural adaptations, such as the number of dense lamellae and efficiently arranged filaments, and have additional organs, namely labyrinth organs as additional respiratory aids, and from this research data is used as a source of learning biology, especially in the respiratory system arteries and adaptation of living things aimed at high school students in grade X.