Beaked Whale Cruise off Baja California Mexico.
Henderson et al.
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- July 1, 2025
Beaked whales (Family Ziphiidae; Order Cetacea) are the least well-described group of marine mammals because they conduct very long deep dives, spend little time on the surface where they display cryptic behavior, and are difficult to identify due to the similarity between species. Beaked whales are also known to be susceptible to high-energy sound sources in the ocean (e.g. seismic research, sonars used by military activities).
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- June 1, 2014
This report summarizes information from 24 U.S. Navy-funded aerial surveys of pinniped haulout sites in the inland waters of Washington State conducted between March 2013 and February 2014 by Washington Department of Fish and Wildlife.
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- April 1, 2014
During this survey, the visual team surveyed 4,504 kilometers (km) of ‘full-effort,’ which included 349 km of ‘transit-effort.’ There was an additional 375 km of ‘fog-effort’ (transect and transit). Based on total effort, there were 802 sightings (1,998 individuals) of 13 confirmed marine mammal species, with an additional 162 sightings (228 individuals) of unidentified cetaceans and pinnipeds (including those recorded on transit and during off-effort mode).
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- August 5, 2009
Aerial surveys were conducted in conjunction with two US Navy (Navy) Major Training Events (MTE) involving mid-frequency active sonar (MFAS) and explosives in October (Oct) and mid-November (Nov) 2008 in the Southern California Range Complex (SOCAL) off San Diego, California. The purpose of this survey was to monitor potential effects or lack of observable effects of MFAS and explosives on mammals and sea turtles (MM/ST) during a MTE from 17-21 Oct and beginning one day after a MTE from 15-18 Nov.
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- August 6, 2025
The Alaska Fisheries Science Center (AFSC), NOAA Fisheries, with support from the U.S. Navy, conducted line transect surveys in Behm Canal and adjacent areas in the spring of 2023 and fall of 2024 to obtain estimates of density and abundance of cetaceans and information on marine mammal distribution and occurrence.
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Current
Acoustic Ecology of Northwest Atlantic Shelf Break Cetaceans and Effects of Anthropogenic Noise Impacts
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Behavioral Response Analysis of Two Populations of Short-Finned Pilot Whales to Mid-Frequency Active Sonar
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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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Estimation of Received Levels of MFAS and Behavioral Response of Marine Mammals at PMRF
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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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Goose-Beaked Whale and Fin Whale Population Dynamics and Impact Assessment at the Southern California Offshore Antisubmarine Warfare Range (SOAR)
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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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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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Improve understanding of the long term trends in occurrence of marine mammals on the PMRF and SOAR ranges.
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Assess occurrence and distribution of Rice's whale throughout the northern Gulf of Mexico
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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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Pacific Marine Assessment Program for Protected Species (PACMAPPS) survey
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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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Passive Acoustic Monitoring for Mid-Atlantic Baleen Whales
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Monitor large whale occurrence in the Mid-Atlantic
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Passive Acoustic Monitoring of Harbor Porpoises in Hood Canal
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Pilot Project to Assess Feasibility of Multi-Sensor Tagging of Rough-Toothed Dolphins at the Pacific Missile Range Facility (PMRF)
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Determine feasibility and efficacy of deploying high resolution multi-sensor tags on rough-toothed dolphins at PMRF and determine how collected data can be used to move toward a better understanding of the effects of Navy activities, ultimately leading to PCoD modelling.
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Salmonid and Southern Resident Killer Whale Distribution in the Pacific Northwest
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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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Southern California Beaked Whale Occurrence (formerly "Passive Acoustic Monitoring of Marine Mammals in Southern California Range Complex (SOCAL)")
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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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Telemetry and Genetic Identity of Chinook Salmon in Alaska
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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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Time-lapse Camera Surveys of Pinnipeds in Southeastern Virginia
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Document seasonal occurrence, habitat use, and haul-out patterns of seals
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(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 responsesNo related blog posts to display
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