A5009841146- Marine animal studies overview
- Underwater Acoustics Research
- Animal Vocal Communication and Behavior
- Marine and coastal plant biology
- Arctic and Antarctic ice dynamics
- Marine and fisheries research
- Coral and Marine Ecosystems Studies
- Cephalopods and Marine Biology
- Underwater Vehicles and Communication Systems
- Cryospheric studies and observations
- Ocean Acidification Effects and Responses
- Wildlife Ecology and Conservation
- Aerospace Engineering and Energy Systems
- Ichthyology and Marine Biology
- Isotope Analysis in Ecology
- Speech and Audio Processing
- Environmental Monitoring and Data Management
- Bat Biology and Ecology Studies
- Scientific Research and Discoveries
- Fish Ecology and Management Studies
- Maritime Navigation and Safety
- Genetic diversity and population structure
- Noise Effects and Management
- Internet of Things and Social Network Interactions
- Geology and Paleoclimatology Research
NOAA National Marine Fisheries Service Pacific Islands Fisheries Science Center
2016-2025
NOAA National Marine Fisheries Service
2015-2025
National Oceanic and Atmospheric Administration
2013-2024
NOAA National Marine Fisheries Service Southwest Fisheries Science Center
2014-2021
Charles Darwin University
2014
The University of Melbourne
2014
Cascadia Research Collective
2014
NOAA National Marine Fisheries Service Southeast Fisheries Science Center
2014
Center for Whale Research
2014
Scripps Institution of Oceanography
2001-2012
SUMMARY Fin whales are among the largest predators on earth, yet little is known about their foraging behavior at depth. These obtain prey by lunge-feeding, an extraordinary biomechanical event where large amounts of water and engulfed filtered. This process entails a high energetic cost that effectively decreases dive duration increases post-dive recovery time. To examine body mechanics fin during dives we attached high-resolution digital tags, equipped with hydrophone, depth gauge...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 330:269-284 (2007) - doi:10.3354/meps330269 Behavioral context of call production by eastern North Pacific blue whales Erin M. Oleson1,*, John Calambokidis2, William C. Burgess3, Mark A. McDonald4, Carrie LeDuc5, Hildebrand1 1University California San Diego, Scripps Institution Oceanography, 9500 Gilman Drive...
Lunge feeding by rorqual whales (Balaenopteridae) is associated with a high energetic cost that decreases diving capacity, thereby limiting access to dense prey patches at depth. Despite this cost, rorquals exhibit rates of lipid deposition and extremely large maximum body size. To address paradox, we integrated kinematic data from digital tags unsteady hydrodynamic models estimate the energy budget for lunges foraging dives blue (Balaenoptera musculus), largest living mammal. Our analysis...
SUMMARY Lunge feeding in rorqual whales is a drag-based mechanism that thought to entail high energetic cost and consequently limit the maximum dive time of these extraordinarily large predators. Although kinematics lunge fin supports this hypothesis, it unclear whether respiratory compensation occurs as consequence lunge-feeding activity. We used high-resolution digital tags on foraging humpback (Megaptera novaengliae) determine number lunges executed per well frequency between dives. Data...
Beaked whale echolocation signals are mostly frequency-modulated (FM) upsweep pulses and appear to be species specific. Evolutionary processes of niche separation may have driven differentiation beaked used for spatial orientation foraging. FM eight whales were identified, as well five distinct pulse types unknown species, but presumed from whales. Current evidence suggests these unidentified also species-specific each produced by a separate species. There relationship between adult body...
Summary 1. Diving capacity generally increases with body size both within and among taxanomic groups because of the differential scaling between oxygen stores metabolic rate. 2. Despite being some largest animals all time, rorqual whales exhibit very short dive times relative to other large divers high energetic costs incurred during lunge feeding. This mode filter feeding requires drag for engulfment volumes prey‐laden water, magnitude volume is largely determined by shape skull. 3. The...
Passive acoustic monitoring is a well-established tool for researching the occurrence, movements, and ecology of wide variety marine mammal species. Advances in hardware data collection have exponentially increased volumes passive collected, such that discoveries are now limited by time required to analyze rather than collect data. In order address this limitation, we trained deep convolutional neural network (CNN) identify humpback whale song over 187,000 h collected at 13 different sites...
We examined the underwater behavior of blue whales using a suction-cup-attached video-imaging instrument (Crittercam). made 13 successful deployments (defined as tag duration >15 min and recovery data) totaling 19 hours Crittercams on off California in Sea Cortez from spring through fall (26 February to 30 September) between 1999 2003. Whale diving depth varied widely by region period, although different individuals same area period often showed very similar feeding behavior. One...
The National Oceanic and Atmospheric Administration (NOAA)/National Park Service (NPS) Ocean Noise Reference Station (NRS) Network is an array of currently twelve calibrated autonomous passive acoustic recorders. first NRS was deployed in June 2014, eleven additional stations were added to the network during following two years. record data that can be used quantify baseline levels multi-year trends ocean ambient sound across continental United States, Alaska, Hawaii, island territories...
Fin whale (Balaenoptera physalus) song consists of down-swept pulses arranged into stereotypic sequences that can be characterized according to the interval between successive pulses. As in blue (B. musculus) and humpback whales (Megaptera novaeangliae), these may geographically distinct correlate with population boundaries some regions. We measured inter-pulse intervals fin songs within year-round acoustic datasets collected 2000 2006 three regions eastern North Pacific: Southern...
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 27:219-232 (2015) - DOI: https://doi.org/10.3354/esr00666 Simultaneous tracking of blue whales and large ships demonstrates limited behavioral responses for avoiding collision Megan F. McKenna1,2,5,*, John Calambokidis2, Erin M. Oleson3, David W. Laist1, Jeremy A. Goldbogen4 1Marine Mammal Commission, 4340 East-West...
At least ten species of beaked whales inhabit the North Pacific, but little is known about their abundance, ecology, and behavior, as they are elusive difficult to distinguish visually at sea. Six these produce species-specific frequency modulated (FM) echolocation pulses: Baird's, Blainville's, Cuvier's, Deraniyagala's, Longman's, Stejneger's whales. Additionally, one described FM pulse (BWC) from Cross Seamount, Hawai'i, three unknown types (BW40, BW43, BW70) have been identified almost 11...
Acoustic communication is an important aspect of reproductive, foraging and social behaviours for many marine species. Northeast Pacific blue whales ( Balaenoptera musculus ) produce three different call types—A, B D calls. All may be produced as singular calls, but A calls also occur in phrases to form songs. To evaluate the behavioural context phrase production whales, acoustic dive profile data from tags deployed on individuals off southern California were assessed using generalized...
Songs are distinct, patterned sounds produced by a variety of animals including baleen whales. Fin whale songs, which consist short pulses repeated at regular interpulse intervals (IPIs), have been suggested as tool to distinguish populations. songs were analyzed from data collected 2000-2012 in Southern California and 2004-2010 the Gulf using autonomous acoustic recorders. IPIs measured for each identifiable song sequence during two random days month with recordings. Four distinct types...
Culture, a pillar of the remarkable ecological success humans, is increasingly recognized as powerful force structuring nonhuman animal populations. A key gap between these two types culture quantitative evidence symbolic markers-seemingly arbitrary traits that function reliable indicators cultural group membership to conspecifics. Using acoustic data collected from 23 Pacific Ocean locations, we provide certain sperm whale signals exhibit spatial patterns consistent with marker function....
False killer whales (Pseudorca crassidens) are large delphinids typically found in deep water far offshore. However, the Hawaiian Archipelago, there 2 resident island-associated populations of false whales, one waters around main Islands (MHI) and Northwestern (NWHI). We use mitochondrial DNA (mtDNA) control region sequences genotypes from 16 nuclear (nucDNA) microsatellite loci 206 individuals to examine levels differentiation among offshore animals central eastern North Pacific. Both mtDNA...
Satellite tagging data for short-finned pilot whales (Globicephala macrorhynchus) and Blainville's beaked (Mesoplodon densirostris) were used to identify core insular foraging regions off the Kona (west) Coast of Hawai'i Island. Ship-based active acoustic surveys oceanographic model output in generalized additive models (GAMs) mixed characterize oceanography these examine relationships between whale density environment. The highest located 1000 2500 m isobaths 250 2000 isobaths,...
Several legal acts mandate that management agencies regularly assess biological populations. For species with distinct markings, these assessments can be conducted noninvasively via capture-recapture and photographic identification (photo-ID), which involves processing considerable quantities of data. To ease this burden, increasingly rely on automated (ID) algorithms. Identification algorithms present an opportunity-reducing the cost population assessments-and a challenge-propagating...
Diel and seasonal calling patterns for blue whales (Balaenoptera musculus) were observed in coastal waters off southern California using seafloormounted autonomous acoustic recording packages (ARPs). Automated call counting from spectrogram cross-correlation showed peak late summer/early fall. When counts organized by daily time intervals, peaks during twilight periods, just after sunset before sunrise. Minimum was the day. Nighttime greater than daytime calling, but also a minimum between...
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 18:47-61 (2012) - DOI: https://doi.org/10.3354/esr00435 Range and primary habitats of Hawaiian insular false killer whales: informing determination critical habitat Robin W. Baird1,*, M. Bradley Hanson2, Gregory S. Schorr1, Daniel L. Webster1, J. McSweeney3, Antoinette Gorgone4, Sabre D. Mahaffy1, Damon Holzer2, Erin...
Abstract We assessed scarring patterns as evidence of fisheries interactions for three populations false killer whales in Hawai‘i. Bycatch the pelagic population tuna longline fishery exceeds their Potential Biological Removal level. Scarring was by seven evaluators consistent, possibly or not consistent with interactions, and average scores computed. Scores were highest scarred main Hawaiian Island ( MHI ) whales, followed Northwestern NWHI individuals. Considering only which majority...
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 27:1-20 (2015) - DOI: https://doi.org/10.3354/esr00632 Theme Section: Geospatial approaches support pelagic conservation planning and adaptive management Habitat-based models of cetacean density distribution in central North Pacific Karin A. Forney1,*, Elizabeth Becker1,2, Dave G. Foley†, Jay Barlow3, Erin M. Oleson4...