First drone tag drop!
February 19, 2026
It's been a long time coming but we finally have a new drone equipped to deploy suction cup tags on whales.
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2024-2025 Large Whale Season Summary
March 24, 2025
We have two separate efforts focusing on cetaceans off the coast of Virginia. The first is our Offshore (Outer Continental Shelf) Cetacean Study, which focuses primarily on deep diving odontocetes like sperm whales. The second effort is our Nearshore and Mid-Shelf Baleen Whale Monitoring Project.
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Kaua'i Field Work Updates
February 20, 2025
Scientists from Cascadia Research Collective recently completed a ~9-day field project off Kaua’i that started on February 9th. This project is timed to occur prior to a Submarine Command Course (SCC) training event. The primary goal is to deploy satellite telemetry tags on multiple species of odontocete cetaceans prior to the SCC, to be able to examine their behavior before, during, and after the event. This approach has been very successful in the past as a way of examining how different species respond to Navy training activities including mid-frequency active sonar (MFAS). Click through the picture below to see daily updates.
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Whales of Summer
June 10, 2024
In the mid-Atlantic, baleen whale sightings typically occur during the colder months, with peak activity in December and January. Sightings of humpback and right whales usually decrease by late March through April. While occasional baleen whale sightings, particularly of fin whales, happen during warmer months, large groups are uncommon as summer approaches. Pelagic surveys during this time often focus on odontocetes like sperm whales and beaked whales.
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Large Whale Action in the Mid-Atlantic
January 30, 2024
After a relatively slow start to the 2023-2024 large whale season, things are picking up here in the Mid-Atlantic. Last week was the busiest we’ve had so far this season for several of our projects as well as adjacent colleagues.
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New acoustic monitoring buoy helps researchers study and protect North Atlantic Right Whales
January 19, 2021
A new buoy to listen for protected whales.
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Fin and blue whale feeding aggregation observed in Norfolk Canyon study area
March 26, 2019
Baleen whale feeding assemblage offshore of Virginia.
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Blue whales and sei whales and right whales - OH MY!!!
April 18, 2018
A spring aggregation of endangered whales offshore.
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Great Day for a Mid-Atlantic Offshore Survey
April 20, 2015
Pelagic cetaceans and sea turtle sightings.
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Passive acoustic monitoring for right whales off Cape Hatteras
October 21, 2013
MARUs off NC
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Complete
Passive Acoustic Monitoring of Marine Mammals Using Autonomous Underwater Vehicles in Southern California
Project Objectives
Explore presence of marine mammals in less-surveyed, offshore areas
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Current
Gulf of Alaska Acoustic Moorings and Analysis
Project Objectives
Conduct systematic line transect survey for marine mammals for density estimates; conduct survey to determine ecotype identity of killer whales; analyze existing and newly collected data for seasonal occurrence, abundance, and density of cetacean
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Current
Passive Acoustic Monitoring for Mid-Atlantic Baleen Whales
Project Objectives
Monitor large whale occurrence in the Mid-Atlantic
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Complete
Passive Acoustic Monitoring of Marine Mammals Using Gliders in Marianas
Project Objectives
Identify acoustically distinct species of beaked whales, odontocetes, and baleen whales that occur in the Mariana Islands; develop a better understanding of marine mammal distribution, habitat use, and abundance
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Complete
Passive Acoustic Monitoring of Marine Mammals in the Gulf of Alaska
Project Objectives
Determine the spatial distribution and occurrence of beaked whales, other odontocetes, and baleen whales in offshore areas using bottom-mounted passive acoustic recorders and deep-diving autonomous gliders
View project
Current
Goose-Beaked Whale and Fin Whale Population Dynamics and Impact Assessment at the Southern California Offshore Antisubmarine Warfare Range (SOAR)
Project Objectives
Improve knowledge of baseline population demographics, vital rates, and movement patterns of Cuvier’s beaked whales and fin whales. Examine what, if any, short term behavioral and/or vocal responses occur when exposed to sonar or explosions at different levels and conditions. Determine if exposure to sonar or explosives impact the long term fitness and survival of individuals or the population, species, or stock
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Current
Southern California Beaked Whale Occurrence (formerly "Passive Acoustic Monitoring of Marine Mammals in Southern California Range Complex (SOCAL)")
Project Objectives
Determine the distribution and temporal patterns of beaked whale occurrence in the waters within and outside the Southern California Range Complex (SOCAL). Use passive acoustic monitoring to determine what species are present in SOCAL and examine spatial and temporal patterns.
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Complete
Assessment of Marine Mammal Vocal Response to Sonar
Project Objectives
Develop analytic methods to evaluate the vocal response of odontocetes and mysticetes to sonar from navy training activities
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Complete
Autonomous Real-Time Passive Acoustic Monitoring of Baleen Whales for Mitigating Interactions with Naval Activities
Project Objectives
Demonstrate near real-time passive acoustic detection and classification hardware/software systems
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Complete
Blue and Fin Whale Satellite Tagging
Project Objectives
Determine the movement patterns, occurrence, and residence times of blue whales and fin whales within U.S. Navy training and testing areas as well as Biologically Important Areas along the U.S. West Coast
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Current
Marine Mammal Sightings During CalCOFI Cruises
Project Objectives
Determine what species and populations of marine mammals are present in Southern California and estimate the abundance and density across seasons
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Current
Long Term Acoustic Monitoring of Marine Mammals Utilizing the Instrumented Range at Pacific Missile Range Facility (PMRF)
Project Objectives
Improve understanding of the long term trends in occurrence of marine mammals (e.g., minke, humpback, fin, Bryde's, Blainville's) on the PMRF range. Examine what, if any, acoustic and physical behavioral responses occur to Navy activities.
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Complete
Acoustic and Visual Survey for Cetaceans in Behm Canal and Southern Clarence Strait, Alaska
Project Objectives
Conduct visual line-transect surveys and passive acoustic monitoring for cetaceans, and other marine mammals, to determine species occurrence, and to estimate density within Navy’s testing range. Acoustic monitoring devices will be deployed during the vessel based survey, and long-term passive acoustic hydrophones will be monitored for year-round detection of rare and/or cryptic cetacean species.
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Current
Pacific Marine Assessment Program for Protected Species (PACMAPPS) survey
Project Objectives
Identify species of beaked whales, odontocetes, and baleen whales that occur in the surveyed areas; Monitor marine mammal and sea turtle presence, distribution, and diversity in offshore waters; Develop a better understanding of marine mammal distribution, movement patterns, habitat use, population structure, and abundance; Develop reference library of visually-validated acoustic recordings of marine mammals.
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Current
Mid-Atlantic Offshore Cetacean Study
Project Objectives
Assess occurrence, habitat use, and baseline behavior of cetaceans in the offshore and continental shelf break region of the VACAPES OPAREA
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Current
Mid-Atlantic Nearshore & Mid-shelf Baleen Whale Monitoring
Project Objectives
Assess occurrence, habitat use, and baseline behavior of baleen whales in the mid-Atlantic region
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Date Published:
  • April 1, 2018

Five species of sea turtles occur in Chesapeake Bay and the coastal waters of Virginia with varying regularity. They include the loggerhead turtle (Caretta caretta), Kemp’s ridley turtle (Lepidochelys kempii), green turtle (Chelonia mydas), leatherback turtle (Dermochelys coriacea), and hawksbill turtle (Eretmochelys imbricata) (Musick and Limpus 1997). Loggerhead and Kemp’s ridley turtles are the most abundant and regularly occurring species, and green turtle numbers have increased over the past two decades in Virginia (Barco et al. 2015, Swingle et al. 2014, 2015, 2016).

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  • 1,259.42 KB
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Date Published:
  • April 1, 2014

The goal of the project is to assess the occurrence, habitat use, and behavior of loggerhead, green, and Kemp's ridley turtles in the Hampton Roads region to better assess the impacts that U.S. Navy activities may have on these protected species.

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  • 1,337.08 KB
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Date Published:
  • February 28, 2015

The ultimate goal of this study is to provide the US NAVY with the necessary data to help identify seasonal areas where cheloniid sea turtles are likely to occur in order to inform DOD sea turtle protection efforts. This project focuses on the three cheloniid sea turtle species commonly seen in Virginia, which are the loggerhead sea turtle, Kemp’s ridley sea turtle, and green sea turtle (Hager 2014).

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  • 6,910.62 KB
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Date Published:
  • March 1, 2019

Kemp’s Ridley Tagging and Tracking in Chesapeake Bay and Costal Waters of Virginia: Final Report

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  • 285.40 KB
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Date Published:
  • June 1, 2017

The goal of this report is to provide the United States (U.S.) Department of the Navy (Navy) with the necessary data to help identify seasonal areas where Kemp’s ridley and green turtles are likely to occur in order to inform Navy environmental planning efforts.

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  • 1,296.69 KB
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Date Published:
  • February 1, 2022

In 2013, under an inter-agency agreement (IAA) between the United States Navy and the National Oceanic and Atmospheric Administration (NOAA), NOAA began conducting in-water surveys to record and quantify observations of marine turtles around the Mariana Archipelago. When observed, attempts were made to hand-capture turtles and equipthem with satellite tags in an effort to better understand their spatial ecology.

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  • 349.81 KB
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Date Published:
  • February 1, 2021

The United States Navy developed monitoring questions for the Mariana Islands Training and Testing (MITT) study area under the Mariana Islands Range Complex Monitoring Plan (MIRCMP), including questions specifically related to marine turtles as required under the Endangered Species Act (ESA) of 1973. To support the needs of the U.S. Pacific Fleet Environmental Readiness Office, the Marine Turtle Biology and Assessment Program (MTBAP) of the National Oceanic and Atmospheric Administration (NOAA) has been conducting research on marine turtle abundance and spatial-temporal ecology in the nearshore waters of Saipan, Tinian, and Guam since 2013, under a series of Interagency Agreements (IAA).

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  • 674.99 KB
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Date Published:
  • January 1, 2024

Understanding the spatio-temporal movements of animals is an integral component of wildlife conservation and management. Sea turtles are species of conservation concern and satellite telemetry is a primary research tool used to study their movements, providing high accuracy location data in near “real time,” thus facilitating rapid identification of movements and key habitats.

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  • 5,706.75 KB
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Date Published:
  • January 1, 2020

Understanding the spatio-temporal movements of animals is an integral component of wildlife conservation and management. Marine turtles are species of conservation concern and satellite telemetry is a primary research tool used to study their movements, providing high accuracy location data in near “real time”, thus facilitating rapid identification of movements and key habitats.

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  • 5,020.67 KB
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Date Published:
  • September 19, 2024

This report presents a geographic information system (GIS)-based overview of the sighting records obtained during marine species monitoring effort (a total of 12 U.S. Pacific Fleet-funded surveys) to date in the MIRC. Also included are incidental marine mammal and sea turtle sightings made since 1965 on non-dedicated surveys in the region.

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  • 14,571.64 KB
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Date Published:
  • February 1, 2013

A long-term goal of this research is the evaluation of the population status of each cetacean stock. This includes producing population abundance estimates using mark-recapture techniques. The first step in the process is the creation of species photo-identification catalogs, which began during the summer of 2012

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  • 2,353.37 KB
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Date Published:
  • March 2, 2017

The Pacific Islands Fisheries Science Center’s (PIFSC) Cetacean Research Program (CRP) has been conducting visual surveys and long-term acoustic monitoring for cetaceans in the waters surrounding Guam and the Commonwealth of the Northern Mariana Islands (CNMI) as part of an ongoing effort to develop a record of cetacean occurrence in the region. Visual surveys have been conducted aboard small boats (7.6-12.2 m) since 2010 off the southernmost islands of the Mariana Archipelago (Guam, Rota, Saipan, Tinian, and Aguijan). These surveys include the collection of photographs for individual identification, tissue samples for genetic analysis of population structure, and the deployment of satellite tags for assessment of individual movements throughout the broader region

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  • 2,999.73 KB
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Date Published:
  • January 31, 2013

The U.S. Navy developed the Mariana Islands Range Complex (MIRC) Monitoring Plan to provide required monitoring of protected species under the Marine Mammal Protection Act (1972) and the Endangered Species Act (1973). Of the 5 species of sea turtle associated with the MIRC this interim report provides preliminary data on the habitat and movements of green turtles (Chelonia mydas) and hawksbill turtles (Eretmochelys imbricata) in the nearshore waters of Saipan, Tinian, Guam – and the waters in between during migration.

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  • 1,200.48 KB
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Date Published:
  • January 15, 2016

This report summarizes field research activities conducted in November 2015 by the PIFSC Marine Turtle Biology and Assessment Program (MTBAP), in collaboration with local partners on Saipan and Guam

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  • 924.60 KB
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Date Published:
  • May 1, 2014

There are two questions from the FY13-15 Monitoring Plan that primarily guide this project. First, are there locations of greater cetacean and/or sea turtle concentration around Guam, Saipan and Tinian? Second, what is the occurrence and/or habitat use of sea turtles in areas that the Navy conducts underwater detonations?

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  • 1,874.51 KB
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Date Published:
  • September 1, 2015

Sea Turtle Tagging in MIRC (Progress Report) -2014 progress report

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  • 2,020.53 KB
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Date Published:
  • December 15, 2016

This report summarizes field research activities conducted between 23 October and 24 November 2016 by the PIFSC Marine Turtle Biology and Assessment Program (MTBAP), in collaboration with local partners on Saipan and Guam

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  • 2,422.75 KB
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Date Published:
  • January 31, 2019

The overall objective is to collect field data that will enable the Navy and the NMFS to better understand the distribution and habitat use of sea turtles in Guam and the CNMI.

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  • 3,376.54 KB
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Date Published:
  • January 31, 2018

The Marine Turtle Biology and Assessment Program (PIFSC, NOAA Fisheries), together with local partners, conducts marine turtle surveys and in-water captures of green turtles (Chelonia mydas) and hawksbill turtles (Eretmochelys imbricata).

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  • 3,653.04 KB
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Five Decades of Marine Megafauna Surveys from Micronesia. Martin, S.L., K.S. Van Houtan, T.T. Jones, C.F. Aguon, J.T. Gutierrez, R.B. Tibbatts, S.B. Wusstig, and J.D. Bass. Frontiers in Marine Science. 2016. :116
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Date Published:
  • August 1, 2007

The objective of Mariana Islands Sea Turtle and Cetacean Survey (MISTCS) was to conduct the first systematic line-transect visual survey of the waters around Guam and the Northern Mariana Islands and generate density estimates for those species which had adequate data.

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  • 6,725.14 KB
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Date Published:
  • August 31, 2011

The goal of this initial phase is to process and compile available data from visual surveys performed by both contractor‐led efforts as well as Navy in‐house ones, such that: 1. A GIS‐based summation of all survey tracks could be visualized 2. A geo‐referenced database of sightings can be queried to visualize sightings by species or survey variables such as observer platform, sea state, or season

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  • 2,020.33 KB
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