Ikan selangat pada umumnya hidup di pesisir lautan dan tergolong ikan demersal yaitu ikan yang hidup dan makan di dasar laut dan sungai. Penangkapannya menggunakan purse seine, payang, jermal, jaring insang dan pukat tepi serta jaring dogol, namun penelitian ini menggunakan alat tangkap Gillnet. Tujuan penelitian ini adalah untuk menerangkan ciri / karakteristik morfometrik meristik dan rasio ukurannya serta menguraikan dan menjelaskan Hubungan Panjang Berat (HPB) yang mendeskripsikan sifat pertumbuhan. Penelitian ini mengunakan metode pendekatan deksriptif kualitatif dan kuantitatif dengan kegiatan observasi. Penelitian dilaksanakan selama 2 bulan dari bulan Desember 2021 sampai Januari 2022. Pengukuran morfometrik sampel ikan selangat terhadap total sampel sebanyak 24 ekor dengan penghitungan sampel 3 ekor pada setiap sampling selama penelitian dilakukan 8 kali sampling. Penghitungan analisa hubungan panjang berat menggunakan total sampel sebanyak 2290 sampel ikan selangat (Anodontostoma sp.). Hasil penelitian ini terdapat 24 karakter morfometrik dan 7 karakter meristik. Ukuran Panjang Cagak (PC) dan Panjang Baku (PB) sebesar 0.8 kali dari Panjang Total (PT). Hubungan panjang berat ikan selangat menunjukan pertumbuhan allometrik positif. Pengukuran kualitas air di lokasi penelitian masih cukup baik dan dapat mendukung kehidupan ikan, khususnya bagi kehidupan ikan selangat (Anodontostoma sp).
Kata kunci: Ikan Selangat, Allometrik, Morfometrik Meristik, Tanjung Ahus

Selangat fish (Anodontostoma sp.) generally inhabit the coastal waters amd are classified as demersal fish, that inhabit and eat on the bottom of the sea and are rivers. They are caught using purse seine, drif gillnet, trawl, gillnet and edge trawl and Danish seine, but this study made use off gillnet fishing gear. This study aims to analyse and determine the morphometric caracteristics of the Selangat fish, their size ratio, and explain the Length-Weight Relationship (LWR) which helps to describe the nature of growth. The descriptive qualitative and qualitative research methods with observation was carried out. The present study was conducted for two months, from Desember 2021 to January 2022. Morphometric measurement was teken on 24 Selangat fish samples with 3 fish counted at each sampling. There were a total of 8 sampling times during the study. Calculation of the length-weight relationship analysis used a total sample of 2290 Selangat fish (Anodontostoma sp.). the result of this study determined 24 morphometric and 7 meristic characteristics. The fork legth (FL) and standard legth (SL) was 0.8 times the total legth (TL). The legth-weight relationship of Selangat fish showed positive allometric growth. Regarding the measurement result, the water quality is classified as sufficient and can support fish life, especially for Selangat fish (Anodontostoma sp.). Keywords: Ikan Selangat, Allometrik, Morfometrik Meristik, Tanjung Ahus