Penelitian ini bertujuan untuk mengetahui struktur karakter morfometrik, meristik, dan anatomi ikan nomei yang dimanfaatkan sebagai sumber belajar biologi kelas x sma di kota tarakan. penelitian yang dilakukan adalah deskriptif, sampel diperoleh dari perairan juata dan perairan amal dengan menggunakan metode penangkapan (pukat trawl dan tugu). data yang diperoleh diukur dan dihitung berdasarkan morfometrik, meristik, pengamatan anatomi dan dianalisis secara deskriptif. berdasarkan hasil pengukuran ciri morfometrik diperoleh nilai rata-rata dan kisaran, sedangkan pada perhitungan ciri meristik diperoleh jumlah sirip dorsal berkisar 11 – 14 (d. xi - xiii), anal berkisar 13 – 16 (a. xiii - xvi), ventral berkisar 8 – 10 (v. viii - x), pektoral berkisar 9 – 13 (p. ix - xiii), caudal berkisar 16 – 23 (c. xvi - xxiii) dan jumlah sisik garis rusuk linea lateralis ± 44. hasil pengamatan anatomi meliputi kelenjar empedu, lambung, usus, rangka, faring, esofagus, jantung, hati, otak dan gelembung renang. hasil penelitian dimanfaatkan sebagai sumber belajar biologi sma kelas x.

The purpose of this research to know the structure of the character of morphometric, meristic, and anatomy of nomei fish which can be used as source of biology’s of grade x sma in tarakan city. the methodology of this study from juata and amal the data was found and counted based on morphometric, meristic, observation of anatomy and analyzed used descriptive. based on the measurement results obtained morphometric characteristics of the average value, while the calculation of the amount obtained meristic characteristic dorsal fin ranges from 11-14 (d. xi - xiii), anal ranges 13-16 (a. xiii - xvi), ventral range 8-10 (v. viii - x), pectoral ranged 9-13 (p. ix - xiii), caudal range 16-23 (c. xvi - xxiii) and the number of lateral line scales 44 ± line laterals. the observations of anatomy include bile glands, stomach, intestines,order, pharynx, esophagus, heart, liver, brain and bubble pools. the results of the study used as a source of learning high school biology class x.