Kaua‘i field project - August 2026
August 25, 2026
Researchers from Cascadia Research Collective are conducting a 9-day field session off Kaua'i to deploy LIMPET satellite tags on odontocete cetaceans prior to a Submarine Command Course (SCC) to be able to examine their behavior before, during, and after the training event. Click on the image below to see daily updates from the field.
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Killer Whale Ecotype Study (KWEST) kicks off
July 27, 2026
Research scientists from the University of Washington and NOAA recently departed from Kodiak, AK aboard the R/V Aquila for a 2-month research cruise focused on distinct groups of killer whales, or ecotypes, that hunt different prey and travel in different parts of the Gulf of Alaska.
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Western gray whale detections in western Pacific
June 8, 2026
Gray whale vocalizations are well-known and have been detected on mobile U.S. Navy passive acoustic monitoring (PAM) systems for decades. Gray whales produce highly variable and complex signals. Given some historical and conservation interest in the overall distribution and migratory patterns and behaviors of gray whales in the north Pacific, the Navy has conducted systematic monitoring for the calls of gray whales in times and areas that would inform species distribution patterns.
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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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Mesoplodon mysterioso
June 13, 2024
We are thrilled to be part of the "Mystery Mesoplodon Expedition" off the west coast of Baja California searching for an elusive new species of beaked whale. Read about the initial discovery and stay tuned for updates on this exciting expedition!
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Kauai' Field Work Updates
February 16, 2024
Scientists from Cascadia Research Collective are leading a ~9-day field project off Kaua’i that started on February 11th.
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August 2022 Kaua‘i Field Project
August 18, 2022
Cascadia Research Collective began an 8-10 day field project off Kaua’i starting on August 16th. This project is timed to occur prior to a Submarine Command Course (SCC). Their primary goal is to deploy LIMPET satellite tags on one or more species of odontocete cetaceans prior to the SCC, to be able to examine their behavior before, during, and after the SCC. 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.
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Current
Visual Survey and Tagging of Hawaiian Odontocetes
Project Objectives
(1) define the spatial movement and habitat use patterns of species that are exposed to mid-frequency active (MFA) sonar (2) determine how these patterns influence exposure and potential responses
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Complete
Vessel-based Marine Mammal Surveys in Puget Sound, Washington
Project Objectives
Conduct marine mammal in-water vessel-based line transect surveys in the Puget Sound basin to: 1) Record data on all marine mammal species seen with the study area, with a focus on the killer whale (Orcinus orca) and the harbor porpoise (Phocoena phocoena). 2) Identify the seasonal occurrence and abundance/density of cetaceans within the study area. 3) Identify the effects of environmental variables on the distribution and abundance of species in the study area.
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Current
Salmonid and Southern Resident Killer Whale Distribution in the Pacific Northwest
Project Objectives
1) Determine the occurrence of bull trout within and near the boundaries of the NWTT; 2) Determine the spatiotemporal occurrence of killer whale and baleen whale in the NWTT; 3) Characterize the occurrence of endangered fish species within the NWTT
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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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Complete
Passive Acoustic Monitoring in the Mariana Islands: Density Estimation of Beaked Whales along the West Coast of Guam
Project Objectives
Determine what species of marine mammals, specifically beaked whales, are present in the Marianas and examine their spatial and temporal patterns of acoustic behavior. Calculate acoustic abundance and density of beaked whales in surveyed area. Analyze sonar detections in area.
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Complete
Pacific Islands Marine Mammal Stranding Diseases
Project Objectives
Determine cause of death when cetaceans strand to ensure accurate public understanding of stranding cause, with focus on infectious diseases
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Current
North Pacific Marine Mammal Species Distribution
Project Objectives
Develop a North Pacific-wide species distribution model for cetaceans
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Complete
Historical Data Analysis for Humpback Whales in the Mariana Islands
Project Objectives
Determine if humpback whales were present in archival acoustic recordings from 2009-2010 nearshore to Pagan and Maug
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Complete
Hawaiian Monk Seal Tagging
Project Objectives
Investigate potential impacts of naval activities on Hawaiian monk seals
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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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Complete
Guam Shore Based Visual Surveys
Project Objectives
Shore-based marine mammal surveys
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Complete
Conservation Canine for Marine Mammal Scat Collection in Hawaii
Project Objectives
Test whether a K9 can be trained to detect and 'direct' boat drivers via changes in behavior to the scat of marine mammals in Hawaii
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Complete
Accelerometry Tag Development
Project Objectives
Increase capacity and develop training for marine mammal monitoring in Hawaii utilizing non-invasive triaxial accelerometry biologging tags to quantify fine-scale behavioral and energetic responses of protected species to potential anthropogenic disturbance
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Current
Monitoring Cetaceans in Hood Canal
Project Objectives
This 12‑month integrated pilot project combines three complementary components: (A) shore‑based theodolite monitoring of harbor porpoises, (B) high‑bandwidth passive acoustic monitoring and soundscape characterization, and (C) suction‑cup multi‑sensor tag deployments on Bigg’s (transient) killer whales. Together, these data streams will quantify occurrence, movement, diving, and behavioral context for these two key species in relation to the local soundscape—including operational signals near the Dabob Bay Range Complex (DBRC) and the Bangor Trident Base. Results can provide an empirical foundation and inform the study design of future cetacean behavioral response studies (BRS) in Hood Canal.
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Current
Passive Acoustic Monitoring of Harbor Porpoises in Hood Canal
Project Objectives
This project was jointly funded through NAVSEA and the NUWC Keyport NISE program to address the Navy’s need for multi-year data on harbor porpoise occurrence and spatiotemporal distribution patterns in Hood Canal using passive acoustic monitoring (PAM).
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Complete
Behavioral Response Research Evaluation Workshop II (BRREW II)
Project Objectives
Response
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Complete
Mariana Islands Sea Turtle and Cetacean Survey (MISTICS)
Project Objectives
Determine what species of marine mammals and sea turtles are present and estimate abundance.
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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
Pilot study for shore based humpback surveys in Saipan
Project Objectives
Humpback whale nearshore distribution in nearshore Saipan waters
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Complete
Pilot survey for humpback whales at Farallon de Medinilla
Project Objectives
The goal of the visual surveys is to collect individually-identifying information from humpback whales present near and around Farallon de Medinilla (FDM)
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Complete
Sea turtle tagging in the Mariana Islands Range Complex
Project Objectives
Develop a better understanding of sea turtle distribution and habitat use in the Mariana Islands, particularly in relation to locations used by the Navy for underwater detonation training
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Complete
Small vessel visual surveys in the Mariana Islands Range Complex
Project Objectives
Identify species of beaked whales, odontocetes, and baleen whales that occur in the Mariana Islands; Monitor marine mammal and sea turtle presence, distribution, and diversity in nearshore waters during key seasons (summer and winter); 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
Coral survey at Farallon de Medinilla
Project Objectives
Assess presence and status of ESA-listed corals at FDM
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Complete
Occurrence of Green Sturgeon in Inland Waters (historical tag analysis)
Project Objectives
Compile green sturgeon tag and receiver data and analyze historical data for occurrence, distribution, and seasonality in Puget Sound and the Straits of Juan de Fuca
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Complete
Aerial Surveys of Marine Mammals Conducted in the Inland Puget Sound Waters of Washington, summer 2013 – winter 2016
Project Objectives
1) Conduct aerial surveys during four seasonal periods within the inland Puget Sound Survey Area to assess potential differences in seasonal distribution, numbers, and behavioral state patterns of marine mammals; 2) Collect data to estimate densities of marine mammals in the inland Puget Sound waters for species with sufficient sightings; 3) Estimate abundance for each marine mammal species seen an adequate number of times; 4) Document the distribution and habitat use of each species observed; 5) Document and describe behaviors seen without performing focal follows.
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Current
Marine Mammal Monitoring on Navy Ranges (M3R)
Project Objectives
Improve understanding of the long term trends in occurrence of marine mammals on the PMRF and SOAR ranges.
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Current
Estimation of Received Levels of MFAS and Behavioral Response of Marine Mammals at PMRF
Project Objectives
Further our understanding of the Monitoring Questions: 1) What is the occurrence and estimated received levels of MFAS on 'blackfish', humpback, minke, sperm and Blainville's beaked whales within the PMRF instrumented range? and 2) What, if any, are the short term behavioral responses of 'blackfish,' humpback, minke, sperm and Blainville's beaked whales when exposed to MFAS/explosions at different levels/conditions at PMRF?
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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
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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
North Pacific Humpback Whale Tagging
Project Objectives
Determine the occurrence, movement patterns, and residency patterns of multiple humpback whale Distinct Population Segments within Pacific Ocean Navy Range Complexes
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Complete
Satellite Tagging and Behavioral Monitoring of Male California Sea Lions in the Pacific Northwest to Assess Haul-out Behavior on Puget Sound Navy Facilities and Foraging Behavior in Marine Navy Testing and Training Areas
Project Objectives
To determine the abundance and habitat use of California sea lions that haul out at Navy facilities and forage in testing and training areas
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Current
Pacific Islands Comprehensive Stranding Investigations
Project Objectives
Conduct comprehensive investigations of stranded marine mammals throughout the Pacific Islands with emphasis on the Hawaiian and Mariana Island chains. This includes conducting necropsies of stranded animals, collecting and archiving samples, conducting disease screening, genetic testing, and analysis of historical data. The objective is to examine stranding patterns and causes of death for marine mammals in the Pacific Islands.
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Complete
Guadalupe Fur Seal Satellite Tracking
Project Objectives
Determine the at-sea distribution of endangered Guadalupe fur seals and whether they travel through or utilize the offshore waters of the Southern California Range Complex and Northwest Training and Testing area
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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
Effectiveness of Navy Lookout Teams in Detecting Cetaceans
Project Objectives
Obtain data to characterize the potential exposure of marine mammals and ESA-listed marine species to Navy training and testing activities, evaluate the effectiveness of mitigation measures
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Complete
Offshore Distribution of Southern Resident Killer Whales in the Pacific Northwest
Project Objectives
1) Identify and classify Southern Resident killer whale (SRKW) detections from acoustic recorders and satellite tag tracking; 2) Develop a model to estimate the seasonal and annual occurrence patterns of southern resident killer whales relative to offshore Navy training ranges. 3) Characterize occurrence of anthropogenic sounds in potential SRKW habitat. 4) Develop state space habitat model for SRKW prey, based on fall Chinook salmon tagged released from California to British Columbia between 1977 and 1990 to estimate seasonal distribution along the west coast.
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Complete
Acoustic Tagging of Green Sturgeon to Evaluate Habitat Use Along the Washington Coast
Project Objectives
With acoustic telemetry, determine 1) the location of green sturgeon detections within Washington, 2) the season for specific habitat use (e.g., estuaries; coastal waters), 3) the frequency an animal moves between coastal and estuarine waters, and 4) the range of each tagged animal.
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Current
Telemetry and Genetic Identity of Chinook Salmon in Alaska
Project Objectives
To use a combination of pop-up satellite technology and salmon genetics to provide critical information on Chinook salmon spatial and temporal distribution in the Gulf of Alaska and along the Washington coast to inform salmon management and U.S. Navy training activities. The study seeks to 1) determine the occurrence, timing, and specific run of Chinook salmon through genetics within the Navy training areas; 2) describe the influence of environmental covariates on Chinook salmon occurrence; and 3) improve the understanding of run-specific timing and geographical occurrence of Chinook salmon as the prey of Southern Resident killer whales in Washington.
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Complete
Characterizing the Distribution of ESA-listed Salmonids in Washington and Alaska
Project Objectives
Use acoustic tagging technology to provide critical information on spatial and temporal distribution of salmonids to inform salmon management, U.S. Navy activity, and Southern Resident Killer Whale (SRKW) conservation. The study seeks to 1) determine the occurrence and timing of salmonids within the Navy training ranges, 2) describe the influence of environmental covariates on salmonid occurrence; and, 3) describe the occurrence of salmonids in relation to SRKW distribution.
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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
Behavioral Response Analysis of Two Populations of Short-Finned Pilot Whales to Mid-Frequency Active Sonar
Project Objectives
Utilize newly developed statistical methods from the Atlantic BRS project and apply them to all the satellite-tagged pilot whales from both the Atlantic and Pacific studies.
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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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