A5048528237- Marine animal studies overview
- Underwater Acoustics Research
- Toxic Organic Pollutants Impact
- Animal Vocal Communication and Behavior
- Arctic and Antarctic ice dynamics
- Mercury impact and mitigation studies
- Environmental Toxicology and Ecotoxicology
- Effects and risks of endocrine disrupting chemicals
- Per- and polyfluoroalkyl substances research
- Noise Effects and Management
- Microplastics and Plastic Pollution
- Marine Biology and Environmental Chemistry
- Heavy Metal Exposure and Toxicity
- Immune Response and Inflammation
- Pharmaceutical and Antibiotic Environmental Impacts
- Marine Bivalve and Aquaculture Studies
- Maritime Navigation and Safety
- Infant Nutrition and Health
- Agricultural safety and regulations
- Vehicle Noise and Vibration Control
- Nanoparticles: synthesis and applications
- Aerodynamics and Acoustics in Jet Flows
- Animal testing and alternatives
- Cardiovascular and Diving-Related Complications
- Marine and coastal plant biology
University of Miami
2024
University of Victoria
2020-2024
NOAA National Marine Fisheries Service Southeast Fisheries Science Center
2022-2024
University Corporation for Atmospheric Research
2022-2023
Cooperative Programs for the Advancement of Earth system science
2023
Golder Associates (Canada)
2022
University of New Brunswick
2022
National Oceanic and Atmospheric Administration
2022
NOAA National Marine Fisheries Service
2022
Acoustical Society of America
2020
Measurements of the source levels 9880 passes 3188 different large commercial ships from Enhancing Cetacean Habitat and Observation (ECHO) program database were used to investigate dependencies vessel underwater noise emissions on several design parameters operating conditions. Trends in dataset analyzed using functional regression analysis, which is an extension standard analysis represents a response variable (decidecade band level) as continuous function predictor (frequency). The...
The expansion of hydrocarbon exploration in northwest Greenland has made it increasingly important to understand the occurrence marine mammals region. We describe seasonal and spatial distribution their calls Baffin Bay Melville Bay. Four Autonomous Multichannel Acoustic Recorders (AMARs) were deployed during summer 2012 (late July early October), five recorders September 2013, two from late 2013 2014. call presence several species was analyzed using automatic detection manual verification...
Abstract Bearded seal ( Erignathus barbatus ) calls were recorded using autonomous passive acoustic recorders deployed in the northeastern Chukchi Sea between October 2007 and 2010. Continuous data acquired during summer (August to mid‐October), overwinter (mid‐October through July) on a duty cycle of 40/48 min every 4 h. We investigated spatio‐temporal distribution behavior vocalizing bearded seals this multiyear set. Peaks calling occurred spring, coinciding with mating period, stopped...
During breeding season, male harbor seals (Phoca vitulina) produce underwater calls used in sexual competition and advertisement. Call characteristics vary among populations, within-population differences are thought to represent individual variation. However, vocalizations have not been described for several populations of this widely-distributed genetically diverse species. This study describes the vocal repertoire from British Columbia, Canada. Underwater recordings were made near Hornby...
Abstract Cetaceans spend most of their time below the surface sea, highlighting importance passive acoustic monitoring as a tool to facilitate understanding and mapping year-round spatial temporal distributions. To increase our limited knowledge cetacean detection patterns for east west coasts Gwaii Haanas, remote protected area on Haida Gwaii, BC, Canada, datasets recorded off SG̱ang Gwaay (Sep 2009–May 2011), Gowgaia Slope (Jul 2017–Jul 2019), Ramsay Island (Aug 2018–Aug 2019) were...
Abstract The soundscape is a crucial habitat feature for marine mammals. This study investigates the contribution of bearded seal vocalizations to in western Canadian Arctic, and also vocal characteristics seals relative sea ice conditions. Passive acoustic data were recorded near Sachs Harbour between August 2015 July 2016. Sound pressure levels (SPL) 50–1,000 Hz 1–10 kHz bands increased as total duration all increased, this relationship was moderated by concentration. Bearded region had an...
Shipping is increasing in Arctic regions, exposing marine mammals to increased underwater noise. Noise analyses often use unweighted broadband sound pressure levels (SPL) assess noise impacts, but this does not account for the animals' hearing abilities at different frequencies. In 2018 and 2019, were recorded five three sites, respectively, along a shipping route an inlet of Northern Baffin Island, Canada. Broadband SPLs (10 Hz–25 kHz), with auditory weighing functions from mammal groups,...
The Ocean Networks Canada (ONC) cabled video-observatory at the Barkley Canyon Node (British Columbia, Canada) was recently site of a Fish Acoustics and Attraction Experiment (FAAE), from May 21, 2022 to July 16, 2023, combining observations High-Definition (HD) video, acoustic imaging sonar, underwater sounds depth 645 m, examine effects light bait on deep-sea fish invertebrate behaviors. unexpected presence least eight (six recurrent two temporary) sub-adult male northern elephant seals (...
This study investigated in vitro the effects of methylmercury chloride (CH3HgCl), zinc (ZnCl2), cadmium (CdCl2), lead acetate (Pb(C2H3O2)2), and PCBs (Aroclor mixtures) on proliferation T lymphocytes from thymus, lymph node, blood one female grey seal (Halichoerus grypus) juvenile. After exposure to heavy metals, a dose-response curve was observed with decrease both node. Exposure Aroclor mixtures led mostly reduced thymocytes node blood. Lymph cells seem less sensitive metals than...