NOAA Fisheries conducts research activities on the biology, behavior, and ecology of the sei whale. This research informs management decisions and enhances recovery efforts for this endangered species.

Sei whale feeding.

A feeding sei whale. Photo: NOAA Northeast Fisheries Science Center/Allison Henry.

Stock Assessments

Determining the number of sei whales in each population—and whether a stock is increasing or decreasing over time—helps resource managers assess the success of conservation measures. Our scientists collect information and present these data in annual stock assessment reports.

Acoustic Science

NOAA conducts research on the acoustic environment of cetaceans, including sei whales. Acoustics is the science of how sound is transmitted. This research increases our understanding of the basic acoustic behavior of whales, dolphins, and fish; maps the acoustic environment; and develops better methods to locate cetaceans using autonomous gliders and passive acoustic arrays.

Acoustics are used to monitor hearing levels and feeding behavior in sei whales. We also study how underwater noise affects the way sei whales behave, eat, interact with each other, and move within their habitat.

Learn more about acoustic science