Fluke of a gray whale in Baja, Mexico.  Photo Credit: Mark J. Palmer

Scientists Rally for Gray Whales

Topics: Science, Whales, gray whale, Endangered Species Act

By Mark J. Palmer

On August 1st, 2025, Dr. Richard Steiner, a longtime marine mammal researcher, now retired from the University of Alaska, filed a formal proposal to the US National Marine Fisheries Service to put the gray whale back on the US Endangered Species list.

The gray whale population has continued to decline precipitously in recent years. (See the Scientists’ letter below for more details.)

The species was listed on the official US Endangered Species list from the beginning, and attempts to protect it began in the 1920s. Fortunately, under the protection of the governments of Mexico, the US, and Canada, the gray whale made a spectacular comeback from near extinction. Gray whales were delisted in 1994 to widespread acclaim – the Endangered Species Act had protected and recovered the gray whale.

But likely habitat changes due to global warming in the Arctic feeding grounds have reduced the main food of the gray whale, and the population is severely stressed from a lack of food. Ship strikes and entanglement in fishing gear are also hazards for gray whales and other marine species.

The International Marine Mammal Project (IMMP) of Earth Island Institute approached marine scientists to sign onto a letter of support for relisting the gray whale. Here is the letter:

October 31, 2025

Mr. Neil Jacobs , NOAA Administrator

1401 Constitution Ave. NW

Room 5128

Washington, DC 20230

Dr. Francis Gulland, Chair

US Marine Mammal Commission

4340 East-West Highway, Suite 700

Silver Spring, MD 20814

Dear Dr. Grimm and Dr. Gulland:

We are marine mammal scientists who are deeply concerned about the recent decline in numbers of the Eastern Pacific population of the gray whale (Eschrichtius robustus).

We wish to express our support for the listing petition for the gray whale filed by our Alaska colleague, Prof. Rick Steiner and Oasis Earth on August 1st, 2025, with your office. A copy of the petition is attached. We feel the petition presents substantial scientific information necessary to justify the petitioned action (listing), and urge the agency to expeditiously proceed with the process.

We concur with the need to re-list the gray whale on the federal endangered species list, which would open up additional federal protections and resources to address the precipitous decline of the species over the past decade.

We urge your office to move forward with a comprehensive Status Review of the species, incorporating the agency’s own recent research, which documents that the species declined from an estimated population of 27,000 during 2015-16 to only 13,000 animals in 2024-25. In addition, production of calves in the Baja lagoons has declined dramatically. The future of the species is clearly in doubt, and thus, we feel the species urgently needs ESA protection.

Thank you for your consideration of our views.

Signed,

(Affiliations Listed for Identification Purposes Only.)

Dr. Giovanni Bearzi, PhD

President, Dolphin Biology and Conservation (Italy)

Pew Marine Conservation Fellow

Dr. Maddalena Bearzi, PhD

President, Ocean Conservation Society

Francesca Bertone, Executive Director

Nature of Hope

Eileen Campbell

Science Writer, Exploratorium

Dr. Giuseppe Notarbartolo di Sciara, PhD

Founder and Honorary President

Tethys Research Institute

Dr. David Duffus, Phd

Whale Research Lab

Victoria BC

Dr. Lauren Eckert, PhD

University of British Columbia

Alaska Whale Foundation

Melissa L. Edmonds

Scientist, Marine Biology

Animal Welfare Institute

Dr. Toni Frohoff, PhD

TerraMar Research

Dr. Deborah Giles, PhD

The SeaDoc Society

Jayden Harman, CEO

PAX Scientific, Inc.

Dr. Michael Herz, PhD

S.F. Baykeeper Emeritus

Past Chair, Friends of the Earth

Dr. Patrick R. Hof, MD, FAAA

Nash Family Department of Neuroscience

Icahn School of Medicine at Mount Sinai

Erich Hoyt, O.B.E.

Member, IUCN Cetacean Specialist Group

Co-chair, IUCN SSC-WCPA Marine Mammal Protected Areas Task Force

Nora Ives

Marine Scientist

Oceana

Allison Lui

Stranding Coordinator | Research Associate

Marine Mammal Stranding Program

Cal Poly Humboldt

Dr. Lori Marino, PhD

President

Whale Sanctuary Project

Liah McPherson

Graduate Research Fellow

Alaska Whale Foundation

Dr. Juan Pablo Torres-Florez, PhD

Science Coordinator

Sea Shepherd Brazil

Fabian Ritter

Vice President

Director of Research

M.E.E.R. e.V.

Dr. Bárbara Galletti Vernazzani VM

President and scientific director

Centro de Conservación Cetacea, Chile

Research Associate, Chile, Pacific Whale Foundation

Charles Vinick

Chief Executive Officer

Whale Sanctuary Project

Dr. Ingrid Visser, PhD

Orca Research Trust

Whale-Rescue.org

Lindy Weilgart, Ph.D.

Senior Ocean Noise Expert and Policy Consultant

OceanCare

Dr. Michael Weiss, PhD

Research Director

Center for Whale Research