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"Marine Mammal Strandings"

Marine Mammal Strandings Results

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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.
February 17, 2026 - Feature Story ,
National
A man stands with a herding board next to a kennel watching four California sea lions move across a sandy beach heading towards water. California sea lion pups are released at Cabrillo Beach following rehabilitation at the Marine Mammal Care Center in San Pedro, California. Credit: Marine Mammal Care Center Los Angeles.

Dead Sperm Whale Washes Ashore on Nantucket

First report of a dead sperm whale on Nantucket, Massachusetts, since 2002.
November 28, 2025 - Feature Story ,
New England/Mid-Atlantic
A dead sperm whale washes ashore on Nantucket. Team members attach a solar-powered satellite tag to the dead sperm whale, while lines secure it onshore for examination. Credit: Marine Mammal Alliance Nantucket. NOAA Permit #24359

2022 and 2023 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 2022 and 2023. In 2022, there were 6,061 confirmed marine mammal strandings; in 2023, there were 6,648.
July 31, 2025 - Feature Story ,
Alaska
New England/Mid-Atlantic
Pacific Islands
Southeast
West Coast
National
A minke whale carcass lies on a rocky beach. There are several lines to secure it in place while responders take measurements and samples. A complete necropsy of a minke whale on Blakely Island, Washington. The necropsy revealed injuries—including severe bruising and broken ribs and vertebrae—consistent with a vessel strike. Credit: The Whale Museum

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 ,
Southeast
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 ,
Alaska
New England/Mid-Atlantic
Pacific Islands
Southeast
West Coast
National
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.

Community Partners Respond to Hawaiʻi Island Cetacean Strandings

NOAA Fisheries and the Native Hawaiian Organization Kiaʻi Kanaloa are developing a new partnership for whale and dolphin stranding responses on Hawaiʻi Island.
August 28, 2024 - Feature Story ,
Pacific Islands
A group of people look at a deceased Kogia calf which has been placed on two large leaves atop a table. Kiaʻi Kanaloa and Hui Hoʻoleimaluō members respond to a stranded palaoa (whale), a Kogia calf, on Hawaiʻi Island. Their efforts are part of a new and developing stranding response partnership with NOAA Fisheries. Credit: Kiaʻi Kanaloa (NOAA Fisheries Permit #24359)

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.
National

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 ,
Alaska
New England/Mid-Atlantic
Pacific Islands
Southeast
West Coast
National
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 ,
National

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 ,
West Coast
People on a beach performing a necropsy on a stranded gray whale