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Marine Mammal Strandings Results

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Scientists Investigate Why a Sperm Whale Washed Up Along Hilton Head, South Carolina

Teams mobilize along the Southeast coast to reach the dying whale.
May 06, 2025 - Feature Story ,
Sperm whale along the shoreline in Hilton Head, SC

$4 Million Awarded for Marine Mammal Rescue Efforts through Prescott Grant Program

NOAA Fisheries recommended awarding 37 grants, totaling more than $4 million, through the John H. Prescott Marine Mammal Rescue and Assistance Grant Program to our partners in 16 states.
September 30, 2024 - Feature Story ,
Humpback whale carcass lying on beach with two people measuring the pectoral flipper Authorized responders from the Seacoast Science Center take measurements of a dead humpback whale that stranded in Marblehead, Massachusetts. Credit: Seacoast Science Center.

National Marine Mammal Stranding Response Network

The U.S. Marine Mammal Stranding Response Network responds to live stranded, sick, injured, out of habitat, or entangled marine mammals, and investigates dead stranded marine mammals.

2020 and 2021 Combined Report of Marine Mammal Strandings in the United States

This report details marine mammal stranding rates, trends, and activities in the United States for both 2020 and 2021. In 2020, there were 5,400 confirmed marine mammal strandings; in 2021, there were 5,524.
April 03, 2024 - Feature Story ,
Two stranding responders carry a stranded harbor porpoise away from some rocks A harbor porpoise is retrieved from the rocks at Odiorne Point State Park, New Hampshire. Credit: Seacoast Science Center

2020 and 2021 Combined Report of Marine Mammal Strandings in the United States

NOAA Fisheries released the 2020 and 2021 Combined Report of Marine Mammal Strandings in the United States. Responding to stranding events and collecting data on stranded animals helps NOAA Fisheries monitor health and environmental trends that may impact humans.
April 03, 2024 - Document ,

Closure of 2019–2023 Eastern North Pacific Gray Whale Unusual Mortality Event

The Unusual Mortality Event involving stranded eastern North Pacific gray whales has ended.
March 14, 2024 - Feature Story ,
People on a beach performing a necropsy on a stranded gray whale

Closure of 2022 Maine Pinniped Unusual Mortality Event

The Unusual Mortality Event involving stranded harbor and gray seals along the coast of Maine has ended.
January 16, 2024 - Feature Story ,
HPAI Testing on a seal. Marine Mammals of Maine take nasal swabs from a harbor seal for HPAI testing. Credit: Marine Mammals of Maine

2019 Report of Marine Mammal Strandings in the United States

These national and regional marine mammal stranding overviews detail marine mammal stranding rates, trends, and activities in the United States in a given year. In 2019, there were 7,719 confirmed marine mammal strandings in the United States.
January 05, 2023 - Feature Story ,
Stranding Network members perform an animal autopsy on a stranded gray whale that lies within a sectioned off area of the beach. A team of scientists from The Marine Mammal Center and the California Academy of Sciences perform a necropsy on a stranded gray whale at San Francisco’s Ocean Beach. Photo: Katie D’Innocenzo/The Marine Mammal Center.