Skip to main content
Unsupported Browser Detected

Internet Explorer lacks support for the features of this website. For the best experience, please use a modern browser such as Chrome, Firefox, or Edge.

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION | U.S. DEPARTMENT OF COMMERCE
Facebook Instagram Twitter YouTube Mail |
SITE INDEX
CONTACT US
Close Promo Banner
NOAA Fisheries Home Logo
Menu
  • Find A Species
      • Find a Species
      • Managed Species
      • Highly Migratory Species
      • Invertebrates
      • Salmon & Steelhead
      • Sharks
      • Protected Species
      • All Threatened & Endangered Species
      • Corals & Other Invertebrates
      • Dolphins & Porpoises
      • Fish & Sharks
      • Sea Turtles
      • Seals & Sea Lions
      • Whales
      • Species By Region
      • Alaska
      • New England/Mid-Atlantic
      • Pacific Islands
      • Southeast
      • West Coast
      • Helpful Resources
      • Marine Life Viewing Guidelines
      • Marine Life in Distress
      • Report a Stranded or Injured Marine Animal
      • Species in the Spotlight
  • Fishing & Seafood
      • Sustainable Fisheries
      • Bycatch
      • Catch Shares
      • Fishery Observers
      • Illegal, Unregulated, Unreported Fishing
      • Magnuson-Stevens Act
      • Population Assessments
      • Resources for Fishing
      • Commercial Fishing
      • Recreational Fishing
      • Subsistence Fishing
      • Fishery Management Info
      • Permits & Forms
      • Rules & Regulations by Region
      • Sustainable Seafood
      • Aquaculture
      • Commerce & Certification
      • Seafood Inspection
      • Trade
      • Related Topics
      • Atlantic Highly Migratory Species
      • Cooperative Research
      • Enforcement
      • Financial Services
      • International Affairs
      • Science & Data
      • Socioeconomics
  • Protecting Marine Life
      • Endangered Species Conservation
      • Consultations
      • Critical Habitat
      • Endangered Species Act
      • Population Assessments
      • Species Recovery
      • Species in the Spotlight
      • Marine Mammal Protection
      • Health & Stranding Response
      • Marine Mammal Protection Act
      • Population Assessments
      • Take Reduction Plans
      • Marine Life in Distress
      • Report a Stranded or Injured Marine Animal
      • Bycatch
      • Ocean Acoustics/Noise
      • Unusual Mortality Events
      • Vessel Strikes
      • Related Topics
      • Marine Life Viewing Guidelines
      • Enforcement
      • Funding Opportunities
      • International Cooperation
      • Permits & Authorizations
      • Regulations & Actions
      • Science & Data
  • Environment
      • Ecosystems
      • U.S. Regional Ecosystems
      • Management
      • Science
      • Habitat Conservation
      • Habitat Restoration
      • Habitat Protection
      • Types of Habitat
      • Habitat by Region
      • Science
      • Consultations
      • Climate
      • Understanding the Impacts
      • Responding to Change
  • Regions
      • Our Regions
      • Alaska
      • New England/ Mid-Atlantic
      • Pacific Islands
      • Southeast
      • West Coast
      • Contact Us
      • Regional Offices
      • Science Centers
  • Resources & Services
      • Rules & Regulations
      • Fisheries Rules & Regs
      • Fisheries Management Info
      • Protected Resources Regs & Actions
      • Permits
      • Fishing & Seafood
      • Protected Resources
      • International & Trade
      • Funding & Financial Services
      • Funding Opportunities
      • Financial Services
      • Prescott Grants
      • Saltonstall-Kennedy Grants
      • Habitat Restoration Grants
      • Consultations
      • Habitat
      • Endangered Species
      • Tribal
      • Science & Data
      • Research
      • Surveys
      • Data
      • Maps & GIS
      • Publications
      • Published Research
      • Key Reports
      • Documents
      • Publication Databases
      • Laws & Policies
      • Magnuson-Stevens Act
      • Endangered Species Act
      • Marine Mammal Protection Act
      • Policies
      • Outreach & Education
      • For Educators
      • For Students
      • Educational Materials
      • Events
  • About Us
      • NOAA Fisheries
      • Our Mission
      • Who We Are
      • Where We Work
      • Our History
      • News & Media
      • News & Announcements
      • Bulletins
      • Multimedia
      • Science Blogs
      • Events
      • Video Gallery
      • Careers & More
      • Internships
      • Volunteering & Citizen Science
      • Diversity & Inclusion
      • Contact Us
      • National Program Offices
      • Regional Offices
      • Science Centers
      • Our Partners
      • Regional Fishery Management Councils
      • Marine Fishery Advisory Committee
      • Federal Partners
      • State Partners
      • Tribal Governments
      • Non-Government Organizations
    • Find A Species
        Back
        Find A Species
          Find a Species
        • Managed Species
        • Highly Migratory Species
        • Invertebrates
        • Salmon & Steelhead
        • Sharks
          Protected Species
        • All Threatened & Endangered Species
        • Corals & Other Invertebrates
        • Dolphins & Porpoises
        • Fish & Sharks
        • Sea Turtles
        • Seals & Sea Lions
        • Whales
          Species By Region
        • Alaska
        • New England/Mid-Atlantic
        • Pacific Islands
        • Southeast
        • West Coast
          Helpful Resources
        • Marine Life Viewing Guidelines
        • Marine Life in Distress
        • Report a Stranded or Injured Marine Animal
        • Species in the Spotlight
    • Fishing & Seafood
        Back
        Fishing & Seafood
          Sustainable Fisheries
        • Bycatch
        • Catch Shares
        • Fishery Observers
        • Illegal, Unregulated, Unreported Fishing
        • Magnuson-Stevens Act
        • Population Assessments
          Resources for Fishing
        • Commercial Fishing
        • Recreational Fishing
        • Subsistence Fishing
        • Fishery Management Info
        • Permits & Forms
        • Rules & Regulations by Region
          Sustainable Seafood
        • Aquaculture
        • Commerce & Certification
        • Seafood Inspection
        • Trade
          Related Topics
        • Atlantic Highly Migratory Species
        • Cooperative Research
        • Enforcement
        • Financial Services
        • International Affairs
        • Science & Data
        • Socioeconomics
    • Protecting Marine Life
        Back
        Protecting Marine Life
          Endangered Species Conservation
        • Consultations
        • Critical Habitat
        • Endangered Species Act
        • Population Assessments
        • Species Recovery
        • Species in the Spotlight
          Marine Mammal Protection
        • Health & Stranding Response
        • Marine Mammal Protection Act
        • Population Assessments
        • Take Reduction Plans
          Marine Life in Distress
        • Report a Stranded or Injured Marine Animal
        • Bycatch
        • Ocean Acoustics/Noise
        • Unusual Mortality Events
        • Vessel Strikes
          Related Topics
        • Marine Life Viewing Guidelines
        • Enforcement
        • Funding Opportunities
        • International Cooperation
        • Permits & Authorizations
        • Regulations & Actions
        • Science & Data
    • Environment
        Back
        Environment
          Ecosystems
        • U.S. Regional Ecosystems
        • Management
        • Science
          Habitat Conservation
        • Habitat Restoration
        • Habitat Protection
        • Types of Habitat
        • Habitat by Region
        • Science
        • Consultations
          Climate
        • Understanding the Impacts
        • Responding to Change
    • Regions
        Back
        Regions
          Our Regions
        • Alaska
        • New England/ Mid-Atlantic
        • Pacific Islands
        • Southeast
        • West Coast
          Contact Us
        • Regional Offices
        • Science Centers
    • Resources & Services
        Back
        Resources & Services
          Rules & Regulations
        • Fisheries Rules & Regs
        • Fisheries Management Info
        • Protected Resources Regs & Actions
          Permits
        • Fishing & Seafood
        • Protected Resources
        • International & Trade
          Funding & Financial Services
        • Funding Opportunities
        • Financial Services
        • Prescott Grants
        • Saltonstall-Kennedy Grants
        • Habitat Restoration Grants
          Consultations
        • Habitat
        • Endangered Species
        • Tribal
          Science & Data
        • Research
        • Surveys
        • Data
        • Maps & GIS
          Publications
        • Published Research
        • Key Reports
        • Documents
        • Publication Databases
          Laws & Policies
        • Magnuson-Stevens Act
        • Endangered Species Act
        • Marine Mammal Protection Act
        • Policies
          Outreach & Education
        • For Educators
        • For Students
        • Educational Materials
        • Events
    • About Us
        Back
        About Us
          NOAA Fisheries
        • Our Mission
        • Who We Are
        • Where We Work
        • Our History
          News & Media
        • News & Announcements
        • Bulletins
        • Multimedia
        • Science Blogs
        • Events
        • Video Gallery
          Careers & More
        • Internships
        • Volunteering & Citizen Science
        • Diversity & Inclusion
          Contact Us
        • National Program Offices
        • Regional Offices
        • Science Centers
          Our Partners
        • Regional Fishery Management Councils
        • Marine Fishery Advisory Committee
        • Federal Partners
        • State Partners
        • Tribal Governments
        • Non-Government Organizations
Species Directory

Pygmy Sperm Whale

Overview Conservation & Management Science Resources

Pygmy Sperm Whale

Kogia breviceps

Pygmy sperm whale illustration

Protected Status

CITES Appendix II
Throughout Its Range
SPAW Annex II
Throughout the Wider Caribbean Region
MMPA Protected
Throughout Its Range

Quick Facts

Weight
700 to 1,000 pounds
Lifespan
Up to 23 years
Length
Up to 11.5 feet
Threats
Entanglement, Hunting (Indonesia, Japan, and Lesser Antilles), Vessel strikes, Marine debris, Ocean noise
Region
New England/Mid-Atlantic, Pacific Islands, Southeast, West Coast
See Regulatory Actions

About The Species

Pygmy sperm whales are toothed whales named after the waxy substance—spermaceti—found in their heads. The spermaceti is an oil sac that helps the whales produce sound. Like squids, pygmy sperm whales can produce a dark, ink-like liquid that helps them escape from predators.

Pygmy sperm whales are found in temperate and tropical seas worldwide. They look very similar to dwarf sperm whales, making it very difficult to distinguish between the two species in the field. Little is known about both species because of limited information, and they are considered rare.

Pygmy sperm whales, like all marine mammals, are protected under the Marine Mammal Protection Act. NOAA Fisheries and its partners are working to conserve pygmy sperm whales and further our understanding of this species through research and conservation activities.

Status

NOAA Fisheries estimates population size in its stock assessment reports.

Pygmy sperm whales usually avoid vessels and planes, the tools that our scientists use to measure population size. Additionally, the whales only come to the water’s surface when the sea and weather conditions are very calm. As a result, scientists rarely see pygmy sperm whales at sea. This makes it difficult to estimate their minimum population size or current population trends.

Protected Status

CITES Appendix II

  • Throughout Its Range

SPAW Annex II

  • Throughout the Wider Caribbean Region

MMPA Protected

  • Throughout Its Range

Appearance

Pygmy sperm whales have a small, compact body with a small and rounded dorsal fin. Each individual whale’s dorsal fin is a slightly different shape. While on the water’s surface, pygmy sperm whales have a low profile because their head and back are somewhat flat. Their head is sometime described as shark-like because of their pointed snout and narrow lower jaw.

Pygmy sperm whales have wrinkled skin and a brown to blue-gray back. Their underside is paler with white or pink tones. They do not have teeth in their upper jaw but have 10 to 16 pairs of teeth in the lower jaw. Their eyes are dark and bulging, and they have a marking behind the eye that is often called a false gill because it looks like a fish's gill cover.

Pygmy sperm whales can sometimes be confused with dwarf sperm whales, their closest relative. These two types of whales were not distinguished as separate species until 1966. In the wild, it is very difficult to distinguish between them because they have similar appearances and geographic ranges.

Behavior and Diet

Pygmy sperm whales are usually seen either alone or in small groups of six to seven individuals. These groups can vary based on age and sex, but little else is known about their social organization.

Pygmy sperm whales spend very little time at the water’s surface and almost never approach vessels. When they are seen at the surface, they are usually either swimming slowly or lying still (also known as “logging”). They will slowly sink and disappear from view without showing their flukes before diving back into the water. While they do have blowholes, they do not have a visible blow at the surface.

Pygmy sperm whales’ use of the "squid tactic" makes them unique among other types of whales. Each pygmy sperm whale has a sac filled with dark liquid in its intestine. The whale can release more than 3 gallons of dark, reddish-brown liquid, or “ink,” from this sac. The liquid creates a dark cloud in the water to help protect the whales when they feel threatened or are trying to escape predators.

Pygmy sperm whales can dive at least 1,000 feet in search of food. They typically feed in mid- and deep-water environments, as well as near the ocean floor. They eat cephalopods (e.g., squid and octopus), crustaceans (e.g., crabs and shrimp), and fish. The whales use echolocation to locate prey. This means that, like bats, pygmy sperm whales use sound to navigate and "see" the world around them. They do so by producing sounds from their melons (or foreheads) that reflect off the objects around them.

Where They Live

Pygmy sperm whales have a wide distribution. They live in tropical, subtropical, and temperate waters in oceans and seas around the world. They are most common off coasts and along continental shelves (the edges of continents lying under the ocean).

In the United States, pygmy sperm whales live off the coasts of Hawaii, the Pacific Northwest, the North Atlantic, and the northern Gulf of Mexico. They may be most common off the southeastern coasts, as the most strandings have happened there.

In the Southern Hemisphere, pygmy sperm whales live in the Tasman Sea and the waters around Chile, South Africa, and Uruguay. In the Northern Hemisphere, they live in the waters around the Netherlands, northwestern Europe, the Azores, Nova Scotia, and Japan. Their migration patterns are currently unknown.

Lifespan & Reproduction

Pygmy sperm whales can live up to 23 years. They reach sexual maturity when they are 4 to 5 years old. The mating and calving season lasts about 9 months and peaks in March through August in the Northern Hemisphere. Pregnancy lasts for about 9 to 11 months, and females can give birth multiple years in a row. Calves are weaned after 1 year.

Threats

Entanglement

One of the main threats to pygmy sperm whales is becoming entangled or captured in commercial fishing gear such trap lines, pots, and gillnets. Once entangled, they may swim for long distances dragging attached gear, potentially resulting in fatigue, compromised feeding ability, or severe injury. These conditions can lead to reduced reproductive success and death.

Hunting

Historically, pygmy sperm whales were hunted during the 19th century. While they are no longer hunted in the United States, commercial harpoon fisheries in Indonesia, the Lesser Antilles, and Japan continue to take pygmy sperm whales.

Vessel Strikes

Accidental vessel strikes can occasionally injure or kill pygmy sperm whales. They are vulnerable to vessel strikes throughout their range, but the risk is higher in some areas with heavy ship traffic.

Marine Debris

Like many marine animals, pygmy sperm whales can ingest marine debris. They could mistake debris in the deep scattering layer where they feed for prey and incidentally ingested it, leading to possible injury or death. Some stranded pygmy sperm whales have been found with plastic and other garbage blocking their guts.

Ocean Noise

Underwater noise pollution can interrupt the normal behavior of pygmy sperm whales, which rely on sound to communicate. As ocean noise increases from human sources, communication space decreases; the whales cannot hear each other, or discern other signals in their environment as they used to in an undisturbed ocean.

Different levels of sound can disturb important activities, such as feeding, migrating, and socializing. Mounting evidence from scientific research has documented that ocean noise also causes marine mammals to change the frequency or amplitude of calls, decrease foraging behavior, become displaced from preferred habitat, or increase the level of stress hormones in their bodies. If loud enough, noise can cause permanent or temporary hearing loss.

Scientific Classification

Kingdom Animalia
Phylum Chordata
Class Mammalia
Order Cetacea
Family Kogiidae
Genus Kogia
Species breviceps

What We Do

Conservation & Management

NOAA Fisheries is committed to the protection and recovery of pygmy sperm whales. Targeted management actions taken to secure protections for these whales include:

  • Reducing entanglement in fishing gear.
  • Addressing ocean noise.
  • Reducing vessel strikes.
  • Overseeing marine mammal health and stranding response.
  • Minimizing whale watching harassment.
Learn more about our conservation efforts

Science

Our research projects have discovered new aspects of pygmy sperm whale biology, behavior, and ecology and help us better understand the challenges that all pygmy sperm whales face. Our work includes:

  • Stock assessments.
  • Monitoring population abundance and distribution. 
  • Acoustic science. 
Learn more about our research

How You Can Help

Marine Life In Distress

Report Marine Life in Distress

Report a sick, injured, entangled, stranded, or dead animal to make sure professional responders and scientists know about it and can take appropriate action. Numerous organizations around the country are trained and ready to respond. Never approach or try to save an injured or entangled animal yourself—it can be dangerous to both the animal and you.

Learn who you should contact when you encounter a stranded or injured marine animal >

Reduce Speed

Reduce Speed and Be on the Lookout

Collisions with vessels are a major cause of injury and death for whales. Here are some tips to avoid collisions:

Keep a sharp lookout. Look for blows, dorsal fins, tail flukes, etc.

Watch your speed in areas of known marine mammal occurrence. Keep speeds to 10 knots or less to reduce potential for injury.

Keep your distance. Stay at least 100 yards away.

Stop immediately if within 100 yards. Slowly distance your vessel from the whale.

Learn more about vessel strikes >

Keep Your Distance

Keep Your Distance

Be responsible when viewing marine life in the wild. Observe all small whales from a safe distance of at least 100 yards and limit your time spent observing to 30 minutes or less.

Learn more about our marine life viewing guidelines > 

Report a Violation

Report a Violation

Call the NOAA Fisheries Enforcement Hotline at (800) 853-1964 to report a federal marine resource violation. This hotline is available 24 hours a day, 7 days a week for anyone in the United States.

You may also contact your closest NOAA Office of Law Enforcement field during regular business hours.


Related Species

Dwarf sperm whale illustration

Dwarf Sperm Whale

In the Spotlight

Management Overview

Pygmy sperm whales are protected under the Marine Mammal Protection Act. In the United States, NOAA Fisheries works to protect all populations of pygmy sperm whales.

A pygmy sperm whale seen swimming at a distance.

A rare photo of a pygmy sperm whale. Pygmy sperm whales are hard to photograph because they are difficult to spot at sea and avoid vessels. Photo:NOAA Pacific Islands Fisheries Science Center/Mark P. Cotter.


Conservation Efforts

Reducing Entanglement in Fishing Gear

Entanglement in fishing gear is a primary cause of serious injury and death for many whale species, including pygmy sperm whales.

In the Pacific, we implemented the Pacific Offshore Cetacean Take Reduction Plan to reduce mortalities and serious injuries of several marine mammal stocks, including pygmy sperm whales, incidentally injured in the California thresher shark/swordfish drift gillnet fishery.

Addressing Ocean Noise

Underwater noise threatens whale populations, interrupting their normal behavior and driving them away from areas important to their survival. Increasing evidence suggests that exposure to intense underwater sound in some settings may cause some whales to strand and ultimately die. NOAA Fisheries is investigating all aspects of acoustic communication and hearing in marine animals, as well as the effects of sound on whale behavior and hearing. In 2016, we issued technical guidance for assessing the effects of anthropogenic (human-caused) sound on marine mammals’ hearing.

Learn more about ocean noise

Reducing Vessel Strikes

Collisions between whales and large vessels can injure or kill the whales and damage the vessels, but they often go unnoticed and unreported. The most effective way to reduce collision risk is to keep whales and vessels apart. If this is not possible, the second-best option is for vessels to slow down and keep a lookout.

In the Atlantic, we have taken both regulatory and non-regulatory steps to reduce the threat of vessel collisions to North Atlantic right whales, which may also reduce the threat to pygmy sperm whales. The steps include:

  • Requiring vessels to slow down in specific areas during specific times (seasonal management areas).
  • Advocating for voluntary speed reductions in dynamic management areas.
  • Recommending alternative shipping routes and areas to avoid.
  • Modifying international shipping lanes.
  • Developing mandatory vessel reporting systems.
  • Increasing outreach and education.
  • Improving our stranding response.

Learn more about reducing vessel strikes

Overseeing Marine Mammal Health and Stranding Response

We work with volunteer networks in all coastal states to respond to marine mammal strandings, including small whales. When stranded animals are found alive, NOAA Fisheries and our partners assess the animal’s health. When stranded animals are found dead, our scientists work to understand and investigate the cause of death. Although the cause often remains unknown, scientists can sometimes identify strandings due to disease, harmful algal blooms, vessel strikes, fishing gear entanglements, pollution exposure, and ocean noise. Some strandings can serve as indicators of ocean health, giving insight into larger environmental issues that may also have implications for human health and welfare.

Learn more about the Marine Mammal Health and Stranding Response Program

Marine Mammal Unusual Mortality Events

Under the Marine Mammal Protection Act, an unusual mortality event (UME) is defined as "a stranding that is unexpected; involves a significant die-off of any marine mammal population; and demands immediate response." To understand the health of marine mammal populations, scientists study unusual mortality events.

Get information on active and past UMEs

Get an overview of marine mammal UMEs


Regulatory History

Pygmy sperm whales, like all marine mammals, are protected in the United States under the MMPA.

Key Actions and Documents

Actions & Documents Incidental Take

Incidental Take Authorization: NOAA Southwest Fisheries Science Center Fisheries and Ecosystem Research Activities in the California Current and

NOAA Fisheries' Office of Protected Resources has issued regulations to govern the unintentional taking of marine mammals incidental to fisheries research conducted in multiple specified geographical regions over the course of five years. These…
  • Final Rule
  • Proposed Rule
  • Notice of Receipt of Application
  • LOA- Antarctic Marine Living Resources Ecosystem (pdf, 7 pages)
  • LOA- California Current Ecosystem (pdf, 10 pages)
  • LOA Application (pdf, 198 pages)
  • Environmental Assessment (pdf, 307 pages)
  • Environmental Assessment Appendices (pdf, 77 pages)
  • FONSI (pdf, 4 pages)
  • Environmental Assessment Adoption Memo (pdf, 5 pages)
  • Biological Opinion (pdf, 235 pages, use Internet Explorer to open)
  • Public Comments
  • References (pdf, 5 pages)
Final Rule
,
West Coast
Foreign
Effective
01/15/2021

Incidental Take Authorization: Scripps Institute of Oceanography Low-Energy Geophysical Survey in the South Atlantic Ocean

NOAA Fisheries has issued an incidental harassment authorization (IHA) to the Scripps Institute of Oceanography (SIO) to incidentally harass, by Level B harassment only, marine mammals during a low-energy marine geophysical survey in the South Atlantic…
  • Notice of Final IHA
  • Notice of Proposed IHA
  • Issued IHA (pdf, 16 pages)
  • IHA Application (pdf, 114 pages)
  • References (pdf, 42 pages)
  • Biological Opinion (pdf, 188 pages)
  • Draft IHA (pdf, 15 pages)
Notice
,
Foreign
Published
11/07/2019

Incidental Take Authorization: Low-Energy Geophysical Survey in the Southwest Atlantic Ocean

NOAA Fisheries  issued an incidental harassment authorization (IHA) to the Scripps Institute of Oceanography (SIO) to incidentally harass, by Level A and Level B harassment, marine mammals during a low-energy marine geophysical survey in the Southwest…
  • Notice of Final IHA
  • Notice of Proposed IHA
  • Issued IHA (pdf, 13 pages)
  • IHA application (pdf, 115 pages)
  • Draft IHA (pdf, 13 pages)
  • References (pdf, 45 pages)
  • Biological Opinion (pdf, 161 pages)
Notice
,
Foreign
Published
10/11/2019

Incidental Take Authorization: U.S. Navy Northwest Training and Testing (NWTT) (2020)

NOAA Fisheries, upon request from the U.S. Navy, has issued regulations pursuant to the Marine Mammal Protection Act to govern the taking of marine mammals incidental to the training and testing activities conducted in the Northwest Training and Testing…
  • Final Rule
  • Proposed Rule
  • Notice of Receipt of Application for LOA
  • Testing LOA (pdf, 38 pages)
  • Training LOA (pdf, 37 pages)
  • Revised LOA Application (pdf, 442 pages)
  • LOA Application (pdf, 452 pages)
  • Notification and Reporting Plan (pdf, 4 pages)
  • Monitoring and Reporting
  • Biological Opinion
  • Supplemental Environmental Impact Statement (External Link)
  • Environmental Impact Statement (External Link)
  • Public Comments (External Link)
  • References- Proposed Rule (pdf, 32 pages)
  • References- Final Rule (pdf, 36 pages)
Final Rule
,
West Coast
Effective
11/09/2020
  • Current page 1
  • Page 2
  • Page 3
  • …
  • 7
  • Next

More Information

  • Marine Mammal Permits and Authorizations
  • Incidental and Directed Take Permits
  • Marine Life in Distress
  • Marine Life Viewing Guidelines
  • Marine Mammal Protection

Science Overview

NOAA Fisheries conducts various research activities on the biology, behavior, and ecology of the pygmy sperm whale. The results of this research are used to inform management decisions for this species.

Stock Assessments

Determining the size of pygmy sperm whale populations helps resource managers determine the success of conservation measures. Our scientists collect population information and present the data in annual stock assessment reports. 

Monitoring Population Abundance and Distribution

Scientists observe pygmy sperm whales to record their numbers and distribution. By comparing numbers collected over multiple years, scientists can look for trends—i.e., whether the population is increasing, decreasing, or remaining stable during a given period.

Acoustic Science

Other research focuses on the acoustic environment of cetaceans, including pygmy sperm whales. Acoustics is the science of how sound is transmitted. This research involves increasing our understanding of the basic acoustic behavior of whales, dolphins, and fish; mapping the acoustic environment; and developing better methods to locate cetaceans using autonomous gliders and passive acoustic arrays.

Learn more about acoustic science

More Information

  • Population Assessments
  • Scientific Research Permitting

Research

Passive Acoustics Research Group News & Media

Our Passive Acoustics Research Group frequently makes the news. This page links to articles and other media featuring our staff and their research.

New England/Mid-Atlantic
More Research
Scroll to Top Icon
Sign up for our newsletter
Stay informed of all the latest regional news around NOAA Fisheries
Sign Up Now!
  • NOAA Fisheries
    • About Us
    • Laws & Policies
    • FishWatch
    • NOAA
    • Department of Commerce
    • Site Index
  • For Researchers
    • Published Research
    • Science & Data
  • Contact Us
    • Contact Us
    • Media Inquiries
    • Report a Violation
    • Report a Stranded or Injured Marine Animal
    • NOAA Staff Directory
Follow Us
Twitter
Facebook
Instagram
Youtube
Can't Find What You Need?
Tour Our Site
How are we doing? Send us your feedback
NOAA Logo
Science. Service. Stewardship.
Accessibility
|
EEO
|
FOIA
|
Information Quality
|
Policies & Disclaimer
|
Privacy Policy
|
USA.gov