A5087257548- Marine animal studies overview
- Underwater Acoustics Research
- Arctic and Antarctic ice dynamics
- Identification and Quantification in Food
- Cephalopods and Marine Biology
- Marine and coastal plant biology
- Ichthyology and Marine Biology
- Marine and fisheries research
- Animal Vocal Communication and Behavior
- Aerospace Engineering and Energy Systems
Marine Ecology and Telemetry Research
2019-2024
Cascadia Research Collective
2014
National Oceanic and Atmospheric Administration
2011
NOAA National Marine Fisheries Service
2011
Abstract Widespread use of unregulated acoustic technologies in maritime industries raises concerns about effects on acoustically sensitive marine fauna worldwide. Anthropogenic noise can disrupt behavior and may cause short- to long-term disturbance with possible population-level consequences, particularly for animals a limited geographic range. Ultrasonic antifouling devices are commercially available, installed globally variety vessel types, marketed as an environmentally-friendly method...
Collisions with ships (ship strikes) are a pressing conservation concern for fin whales (Balaenoptera physalus) along western North America. Fin exhibit strong diel patterns in dive behavior, remaining near the surface most of night, but how this behavior affects ship-strike risk is unknown. We combined use, habitat suitability predictions, and ship traffic data to evaluate spatial temporal trends California Current System (CCS). tested range surface-use scenarios found that both increased...
Abstract Line transect based abundance estimation is complicated for long‐finned (LFPW, Globicephala melas ) and short‐finned (SFPW, G. macrorhynchus pilot whales because of their similarity in appearance overlapping summertime range some areas. We developed a photograph‐based approach to distinguish between species free‐ranging the northwest Atlantic. collected skin samples photographs during summers 2004–2007 used on mitochondrial DNA. Relative morphometric measurements from were examined...
Abstract Harbor porpoises ( Phocoena phocoena ) are the only cetaceans routinely sighted in Hood Canal, a narrow fjord that comprises western edge of Puget Sound, Washington, USA. sensitive to anthropogenic sounds, including noise from recreational and commercial vessel traffic, United States Navy, which conducts military training testing within Canal can include underwater sound sources. This study was funded as part Navy monitoring program assess potential impacts naval activities on...
Risso’s dolphins ( Grampus griseus ), uncommon prior to the 1970’s, are now regularly observed within Southern California Bight. During long-term cetacean monitoring programs on United States Navy range areas in Bight from 2009–2019, we deployed 16 Argos-linked satellite tags acquire objective, detailed depictions of their movements and behaviors. Individuals were tracked for a median 10.7 days (range = 0.8 – 19.7). Kernel density estimation suggested individuals utilized entire with 50%...
Goose-beaked whales ( Ziphius cavirostris ) are deep-diving cetaceans known for their elusive nature and specialized foraging behavior. In 2019 2020, six telemetry tags were deployed on these in Southern California, resulting 395 h of acoustic diving data. Foraging dives manually identified by the presence echolocation pulses buzzes, generalized additive models assessed factors influencing The median bathymetric depth at sites was 1,419 m (IQR = 359), maximum dive highly correlated with...
A visual and acoustic line-transect survey of marine mammals was conducted in the central Gulf Alaska (GoA) during summer 2013. The area divided into four sub-strata to reflect distinct habitats; “inshore,” “slope,” “offshore,” “seamount.” Passive monitoring using a towed-hydrophone array system. One main objectives obtain an acoustic-based density estimate for sperm whales. total 241 encounters whales 6,304 km effort were obtained compared 19 4,155 effort. Line-transect analytical methods...