Karakteristik morfo-meristik ikan layur (Superfamili Trihiuroidea) menggunakan alat tangkap trawl di perairan juata laut sangat jarang dilakukan karena untuk diketahui ukuran panjang dan berat ikan yang tertangkap menggunakan trawl. Tujuan dari penelitian ini adalah menindentifikasi morfologi jenis ikan layur (Superfamili Trihiuroidea) yang tertangkap pada perikanan trawl di perairan juata laut, mengdeskripsikan distribusi ukuran dan berat ikan layur, menganalisis dan menjelaskan hubungan panjang berat ikan. Penelitian ini dilaksanakan dari bulan Desember 2018 sampai dengan Maret 2019. Metode pengambilan data purposive random sampling. Analisis data meliputi identifikasi ikan, sebaran frekuensi panjang, serta hubungan panjang berat. Analisis identifikasi ikan mengambil acuan buku FAO 1993, jenis ikan yang teridentifikasi di perairan Juata Laut Kota Tarakan jenis Lepturacanthus savala. Sebaran frekuensi panjang dan berat menunjukkan selama penelitian ikan layur yang tertangkap dengan kisaran ukuran panjang 32,137,3 cm dan berat berkisar 15,9-22,7. Hubungan panjang berat minggu pertama bersifat allometrik negatif dengan nilai b=1,947 dan minggu kedua bersifat allometrik negatif dengan nilai b=2,3262 sedangkan hubungan panjang berat minggu ketiga bersifat allometrik positif dengan nilai b=3,1028.
Kata Kunci: Identifikasi ikan layur, Distribusi panjang dan berat, dan Hubungan panjang berat

Morpho-meristic characteristics of layur fish (Superfamili Trihiuroidea) using trawl fishing gear in marine waters is very rarely done because fatherly is known for the length and weight of fish caught using trawling. The purpose of the research was to know the morphology of species of layur fish (Superfamili Trihiuroidea) caught in trawl fisheries in marine waters, describe the size and weight distribution of laying fish, analyze and explain the long fish weight relationship. This research was conducted from December 2018 to March 2019. The method of taking data was purposive random sampling. Data analysis included fish identification, long frequency distribution, and long weight relationship. Analysis of fish identification takes reference from the 1993 FAO book, fish species identified in Juata Laut of the Kota Tarakan, Lepturacanthus savala. The result showed distribution of long and heavy frequencies shows that during the study layur fish were caught with a length range of 32.1-37.3 cm and a weight ranging from 15.9-22.7. The relationship between the length of the first week is negative allometric with a value of b = 1.947 and the second week is negative allometric with a value of b = 2.3262 while the relationship of the length of the third week is a positive allometric with a value of b = 3.1028. Keywords: identification of layur fish, length and weight distribution, and length-weight relationship