Whale Safe ratings support ship slow-downs; cooperation 59–85%

Launched 17 Sep 2020 by UCSB's Benioff lab; grades ships' cooperation with NOAA's 10-knot zones. KCBX: vessels slowed 59% of the time in 2023; BWBS 2024 report: 85% cooperation. No vessel outcome.

AI system

System

Whale Safe (near real-time acoustic buoy with automated call detection and classification reviewed by analysts, naturalist sightings, WhaleWatch 2.0 blue whale habitat model, and AIS-based vessel speed report cards)

Model

Not assessed

Release

Exact release not established.

Application developer

Benioff Ocean Science Laboratory, Marine Science Institute, UC Santa Barbara, with Woods Hole Oceanographic Institution, Norwegian University of Science and Technology, UC Santa Cruz, University of Washington, NOAA Southwest Fisheries Science Center and Conserve.io

Role

The detector identified possible whale calls for an analyst to confirm.

Configuration

The deployment used WhaleWatch 2.0.

Inputs and outputs

Not assessed

Autonomy

Not assessed

Workflow

A moored passive acoustic buoy with automated detection and classification (Baumgartner et al. 2019 system) plus analyst review. Sightings from naturalists and NOAA aerial surveys, a daily blue whale habitat model, and AIS tracks processed by Global Fishing Watch. An existing NOAA voluntary speed-reduction zone with BWBS incentives for shipping lines.

Human oversight

Not assessed

Relation to AI

The automated detector on the buoy flags and classifies candidate whale calls, which an analyst confirms before they enter the daily rating. The habitat model is a statistical ensemble and the report cards are AIS arithmetic. The cooperation and risk figures belong to NOAA's and BWBS's voluntary slow-down program, which Whale Safe monitors and publicizes. No cited source separates Whale Safe's contribution from incentives, outreach and retailer pressure. The developer's own news office is the source of the claim that cooperation rose every year since launch.

AI contribution

The automated detector on the buoy flags and classifies candidate whale calls, which an analyst confirms before they enter the daily rating. The habitat model is a statistical ensemble and the report cards are AIS arithmetic. The cooperation and risk figures belong to NOAA's and BWBS's voluntary slow-down program, which Whale Safe monitors and publicizes. No cited source separates Whale Safe's contribution from incentives, outreach and retailer pressure. The developer's own news office is the source of the claim that cooperation rose every year since launch.

Benefits

Outcome identifiers

Not assessed

Benefit

an 85 percent cooperation rate overall by fleets

Category

Improved Environmental Sustainability

Status

Not assessed

Beneficiary groups

Organizations. Society.

Beneficiaries

Not assessed

Reach

Not assessed

Distribution and access

Not assessed

Duration

Not assessed

Expected?

Yes

Costs and harms

Not assessed

Measurement

Studies

Not assessed

Study design

Not assessed

Measurement

Not assessed

Setting and sample

Not assessed

Measures

an 85 percent cooperation rate overall by fleets

Comparison

the 2016 baseline of vessel transits in the area, under the BWBS voluntary speed program that Whale Safe supports (not Whale Safe alone)

Results

Reference: the baseline of transits in the area in 2016. Result: 40% less risk to whales during the 2025 VSR season.

Additional value from AI

Not assessed

Limitations

Not assessed

Denominators

Not assessed

Materials for replication

Not assessed

Money

Kind of value

Not assessed

Amount

Not assessed

Currency and prices

Not assessed

Period and unit

Not assessed

Realization

Not assessed

Recipients and payers

Not assessed

Gross or net

Not assessed

Included costs

Not assessed

Comparison

Not assessed

Method

Not assessed

Return and payback

Not assessed

People and places

Participants

Developer: Benioff Ocean Science Laboratory, Marine Science Institute, UC Santa Barbara, with Woods Hole Oceanographic Institution, Norwegian University of Science and Technology, UC Santa Cruz, University of Washington, NOAA Southwest Fisheries Science Center and Conserve.io. Operator: Shipping companies transiting NOAA's voluntary vessel speed reduction zone in the Santa Barbara Channel; the Protecting Blue Whales and Blue Skies program.

Jurisdictions

Benefit: Santa Barbara Channel, California, United States. Developer: United States.

Ownership and control

Not assessed

Dependencies

Not assessed

Cross-border connections

Not assessed

Geopolitical implications

Not assessed

Follow-up

Conditions for replication

The acoustic buoy is online (the site reported the Santa Barbara system offline on 20 October 2026) and whales vocalize within range. Operators choose to slow in a voluntary zone. Cooperation remains incentive-driven and uneven.

Replication attempts

1 follow-up entries. Outcome unresolved: 1.

Later findings

21 September 2022. Two years after the Santa Barbara Channel launch, UC Santa Barbara announced a second Whale Safe system for the San Francisco Bay area with The Marine Mammal Center, and by July 2026 the Santa Barbara Independent reported a record 60 shipping lines in the slow-down program.

Availability

Not assessed

Institutional decision

Not assessed

Grounds

Not assessed

Action and result

Not assessed

Success criterion

Not assessed

Evidence

Source numbers

AIBD-0323-source-0001–0007

Citations

Numbered references below.

Language

Not assessed

Source relationships

Independent, Developer, Operator

Original evidence

Not assessed

Access and versions

Not assessed

Supported findings

Not assessed

Evidence strength

Not assessed

Missing evidence

Not assessed

Grades

Assessed benefits

Organizations. Society.

Depth

Not assessed

Reasons

Organizations: Shipping lines' cooperation rates (59% of distance in 2023 per KCBX; 85% fleet cooperation in a 2024 BWBS report) are program-wide figures. No source attributes a change in any operator's behavior to Whale Safe's ratings or report cards. Society: Strike-risk reductions (about 50% in 2024, 40% against a 2016 baseline in 2025) are BWBS's modeled estimates for participating vessels, not counts of whales saved. None is attributed to Whale Safe.

Observed or intended

Not assessed

Rubric

Not assessed

Assessor and date

Not assessed

Alternative assessments

Not assessed

Fill

Independently studied

Entry details

Kind

Not assessed

Field

Marine conservation / shipping. Endangered-species vessel-strike mitigation.

Purpose

Built to tell ship operators, in near real time, when whales are likely present in the shipping lanes. It also grades their cooperation with voluntary 10-knot zones so they slow down. The published ratings and report cards are that intended use.

Dates

Date basis unassessed: 2020 (precision unassessed). Updated: 21 October 2026.

Stage

Not assessed

Version

SHA-256: bc4659cae892…

References

Other identifiers

Not assessed

Category mappings

Not assessed

Brief

Not assessed

Revisions

5 revisions. Latest: 21 October 2026.

Sources

  1. Peer-reviewed study Independent author

    Nazario EC, Bailey H, et al. (2026). The role of species distribution models and multiple data sources in implementing dynamic ocean management. Cambridge Prisms: Coastal Futures, doi:10.1017/cft.2026.10041 (PMC13419462).

  2. News report Independent author

    Mongabay (2020). New tool alerts ships when whales are near. But will they slow down? 23 September 2020.

  3. News report Independent author

    Wernik A (2024). UCSB's whale collision prevention tool reveals speed limit violations by large ships. KCBX, 11 April 2024.

  4. News report Independent author

    Santa Barbara Independent (2026). Record 60 Shipping Lines Take Part in Slowdown Program. 16 July 2026.

  5. Press release Developer

    UC Santa Barbara, The Current (2022). Safe Harbor. 21 September 2022 (developer institution's news office).

  6. Press release Deployer

    Protecting Blue Whales and Blue Skies (2026). Reducing the Risk of Ship Strikes to Endangered Whales. bluewhalesblueskies.org (programme site).

  7. Press release Developer

    Whale Safe (undated). Methodology. whalesafe.com (developer's page).