2024 Report of Marine Mammal Strandings in the United States

This report details marine mammal stranding rates, trends, and activities in the United States for 2024. In 2024, there were 8,028 confirmed marine mammal strandings in the United States.

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Four bowhead whales swim at the surface of dark turquoise water Bowhead whales. Image captured during the 2025 aerial survey over the Beaufort Sea. Photo taken while working under authority of NOAA Fisheries Research Permit #25563-02. Credit: NOAA Fisheries & CICOES / Skyla Walcott
view of island community with seal statue in foreground St. George Island. Credit: NOAA Fisheries
Autonomous underwater glider floating in circular pool in an oudoor lab. An underwater glider ballasting (stabilizing) at the Pacific Islands Fisheries Science Center in Honolulu, Hawai‘i, in preparation for the 2026 glider challenge. Credit: NOAA Fisheries
A woman in a red coat wearing sunglasses stands on a boat with fishing reel in the background, holding up a gigantic red snapper. Red snapper, like the one pictured here, is a culturally and economically important fish for South Atlantic fishing communities. It is especially prized by recreational fishermen for their delicious taste and rewarding catch. Credit: NOAA
A graphic with pink and red background with a NOAA logo and decorative hearts in the bottom left corner. Text reads: "Get Heart-Healthy with Seafood" and there is a large heart graphic filled with a photo of a shrimp and vegetable bake.
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Members of the response team lowering a camera into the water with a humback partially submerged in the background A trained response team uses an underwater camera to view the lines entangling a humpback whale off Washington’s Olympic Peninsula in 2019. A proposed rule would help reduce risk of entanglements. Photo credit: Pacific Northwest Large Whale Entanglement Response Network. NOAA Permit #18786-03

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