On the Capture of Sailfins (Istiophorus platypterus (Istiophoridae)) in Waters off the West Coast of Kunashir Island (Sea of Okhotsk) in September 2023

Three immature specimens of Indo-Pacific sailfish Istiophorus platypterus have been found in a catch using a fixed net from the Sea of Okhotsk side of Kunashir Island on September 27, 2023. Data of morphometric measurements of one of them are presented. The total length of the studied specimen was 1101.3 mm, fork length (FL) was 973.8 mm, standard length (SL) was 966.6 mm, lower jaw–fork length (LJFL) was 82.15 cm, and body weight was 2.25 kg. The temperature of the water surface layer in the catch site was 21°C on the date of the capture.