Mackerel (Rastrelliger spp) is one of the dominant catches in PPN Karangantu and is an economically important fish for the people of Indonesia. One of the parameters that affect fish catch is temperature. This research was conducted by collecting secondary data on SST and mackerel catches in a 3 year range, namely 2019 – 2021 and then analyzed using regression analysis method. The SST data at…