Christopher W. Clark

ORCID: 0000-0002-7692-8150
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About
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Research Areas
  • Marine animal studies overview
  • Underwater Acoustics Research
  • Animal Vocal Communication and Behavior
  • Arctic and Antarctic ice dynamics
  • Underwater Vehicles and Communication Systems
  • Marine and fisheries research
  • Water Quality Monitoring Technologies
  • Speech and Audio Processing
  • Avian ecology and behavior
  • Identification and Quantification in Food
  • Scientific Research and Discoveries
  • Music and Audio Processing
  • Marine and coastal plant biology
  • Noise Effects and Management
  • Cephalopods and Marine Biology
  • Advanced Chemical Sensor Technologies
  • Wildlife Ecology and Conservation
  • Plasma Diagnostics and Applications
  • Diverse Musicological Studies
  • Particle accelerators and beam dynamics
  • Maritime and Coastal Archaeology
  • Robotics and Sensor-Based Localization
  • Coral and Marine Ecosystems Studies
  • Animal Behavior and Reproduction
  • Bayesian Modeling and Causal Inference

Cornell University
2015-2024

Center for Environmental Health
2019-2023

Marine Acoustics (United States)
2019-2023

Texas A&M University at Galveston
2022

University of St Andrews
2022

Cornell Lab of Ornithology
2010-2021

Hydroacoustics (United States)
2008-2020

Harvey Mudd College
2013-2019

Federal Highway Administration
2014

Indiana University Bloomington
2013

1. Animals produce sounds for diverse biological functions such as defending territories, attracting mates, deterring predators, navigation, finding food and maintaining contact with members of their social group. Biologists can take advantage these acoustic behaviours to gain valuable insights into the spatial temporal scales over which individuals populations interact. Advances in bioacoustic technology, including development autonomous cabled wireless recording arrays, permit data...

10.1111/j.1365-2664.2011.01993.x article EN Journal of Applied Ecology 2011-04-06

Beaked whales have mass stranded during some naval sonar exercises, but the cause is unknown. They are difficult to sight can reliably be detected by listening for echolocation clicks produced deep foraging dives. Listening these clicks, we documented Blainville's beaked whales, Mesoplodon densirostris, in a underwater range where sonars regular use near Andros Island, Bahamas. An array of bottom-mounted hydrophones detect when they click anywhere within range. We used two complementary...

10.1371/journal.pone.0017009 article EN cc-by PLoS ONE 2011-03-14

Abstract: Acute effects of anthropogenic sounds on marine mammals, such as from military sonars, energy development, and offshore construction, have received considerable international attention scientists, regulators, industry. Moreover, there has been increasing recognition concern about the potential chronic human activities (e.g., shipping). It demonstrated that increases in activity background noise can alter habitats animals potentially mask communications for species rely sound to...

10.1111/j.1523-1739.2011.01803.x article EN Conservation Biology 2011-12-19

Anthropogenic underwater noise is now recognized as a world-wide problem, and recent studies have shown broad range of negative effects in variety taxa. Underwater from shipping increasingly significant pervasive pollutant with the potential to impact marine ecosystems on global scale. We reviewed six regional case examples research management activities relating ocean taxonomic groups, locations, approaches. However, no projects could ever cover all taxa, sites sources, brief bibliometric...

10.1016/j.ocecoaman.2015.05.021 article EN cc-by-nc-nd Ocean & Coastal Management 2015-10-01

The survival of North Atlantic right whales ( Eubalaena glacialis ) is seriously threatened by mortality caused ships and entanglements in fishing gear. Demographic modeling indicates that the population declining despite efforts to reduce anthropogenic mortalities, spite recent increases calving. authors this Policy Forum recommend immediate emergency management actions shipping entanglement mortalities whales, so as avoid a catastrophic decline inevitable extinction.

10.1126/science.1111200 article EN Science 2005-07-22

A method is described for the automatic recognition of transient animal sounds. Automatic can be used in wild research, including studies behavior, population, and impact anthropogenic noise. The here, spectrogram correlation, well-suited to sounds consisting tones frequency sweeps. For a sound type interest, two-dimensional synthetic kernel constructed cross-correlated with recording, producing function--the likelihood at each point time that was present. threshold applied this function...

10.1121/1.429434 article EN The Journal of the Acoustical Society of America 2000-06-01

The impact of anthropogenic noise on marine mammals has been an area increasing concern over the past two decades. Most low-frequency in ocean comes from commercial shipping which contributed to increase background 150 years. long-term impacts these changes are not well understood. This paper describes both short- and behavioral calls produced by endangered North Atlantic right whale (Eubalaena glacialis) South australis) presence increased noise. Right whales produce with a higher average...

10.1121/1.2799904 article EN The Journal of the Acoustical Society of America 2007-12-01

A bstract The 2001 survey of western Arctic (Bering, Chukchi, and Beaufort seas) bowhead whales was conducted from 5 April to 7 June near Barrow, Alaska. Visual observers recorded a total 3,295 “new” (not seen before) 532 “conditional” (possibly in 1,130 h watch effort, including 121 new calves (3.7% the whales). Concurrent with visual survey, passive acoustic surveillance almost continuously 16 31 May, resulting 27,023 locations vocalizing whales. estimated number within 4 km perch (N )...

10.1111/j.1748-7692.2004.tb01191.x article EN Marine Mammal Science 2004-10-01

Abstract The effects of chronic exposure to increasing levels human‐induced underwater noise on marine animal populations reliant sound for communication are poorly understood. We sought further develop methods quantifying the masking associated with contact‐calling North Atlantic right whales (Eubalaena glacialis) in an ecologically relevant area (∼10,000 km 2 ) and time period (peak feeding time). used array temporary, bottom‐mounted, autonomous acoustic recorders Stellwagen Bank National...

10.1111/j.1523-1739.2012.01908.x article EN Conservation Biology 2012-08-14

Abstract Given new distribution patterns of the endangered North Atlantic right whale (NARW; Eubalaena glacialis ) population in recent years, an improved understanding spatio-temporal movements are imperative for conservation this species. While so far visual data have provided most information on NARW movements, passive acoustic monitoring (PAM) was used study order to better capture year-round presence. This project PAM from 2004 2014 collected by 19 organizations throughout western...

10.1038/s41598-017-13359-3 article EN cc-by Scientific Reports 2017-10-12

The ability to perceive biologically important sounds is critical marine mammals, and acoustic disturbance through human-generated noise can interfere with their natural functions. Sounds from seismic surveys are intense have peak frequency bands overlapping those used by baleen whales, but evidence of interference whale communication sparse. Here we investigated whether blue whales ( Balaenoptera musculus ) changed vocal behaviour during a survey that deployed low-medium power technology...

10.1098/rsbl.2009.0651 article EN Biology Letters 2009-09-23

The recent loss of Arctic sea ice provides humans unprecedented access to the region. Marine mammals rely on sound as a primary sensory modality, and noise associated with increasing human activities offshore can interfere vital life functions. Many coastal communities marine for food cultural identity, subsistence hunters have expressed strong concerns that underwater from negatively affects both animals hunting success. Federal regulations require scientists oil gas operators acquire...

10.1525/bio.2012.62.3.10 article EN BioScience 2012-03-01

Understanding cumulative effects of multiple threats is key to guiding effective management conserve endangered species. The critically endangered, Southern Resident killer whale population the northeastern Pacific Ocean provides a data-rich case explore anthropogenic on viability. Primary include: limitation preferred prey, Chinook salmon; noise and disturbance, which reduce foraging efficiency; high levels stored contaminants, including PCBs. We constructed viability analysis possible...

10.1038/s41598-017-14471-0 article EN cc-by Scientific Reports 2017-10-20

A core task in endangered species conservation is identifying important habitats and managing human activities to mitigate threats. Many marine organisms, from invertebrates fish mammals, use acoustic cues find food, avoid predators, choose mates, navigate. Ocean noise can affect animal behavior disrupt trophic linkages. Substantial potential exists for area-based management reduce exposure of animals chronic ocean noise. Incorporating into spatial planning (e.g., critical habitat...

10.1016/j.marpolbul.2015.09.012 article EN cc-by-nc-nd Marine Pollution Bulletin 2015-09-16

Abstract Six baleen whale species are found in the temperate western North Atlantic Ocean, with limited information existing on distribution and movement patterns for most. There is mounting evidence of distributional shifts many species, including marine mammals, likely because climate‐driven changes ocean temperature circulation. Previous acoustic studies examined occurrence minke ( Balaenoptera acutorostrata ) right whales (NARW; Eubalaena glacialis ). This study assesses presence...

10.1111/gcb.15191 article EN cc-by Global Change Biology 2020-05-25
Kevin Darras Rodney A. Rountree Steven L. Van Wilgenburg Anna F. Cord Frederik Pitz and 95 more Youfang Chen Lijun Dong Amandine Gasc Tzu‐Hao Lin Paula Trujillo Díaz Shih-Hung Wu M.R.J. Salton Sarah A. Marley Laura Schillé Paul J. Wensveen Camille Desjonquères Orlando Acevedo‐Charry Matyáš Adam Jacopo Aguzzi M. André Alexandre Antonelli Leandro Do Nascimento Giulliana Appel Christos Astaras Andrey Atemasov Luc Barbaro F. Basan Carly Batist Adrià López‐Baucells Júlio Baumgarten Just T. Bayle‐Sempere Kristen Bellisario A David Oded Berger‐Tal Matthew G. Betts Iqbal Singh Bhalla Thiago Bicudo Marta Bolgan Sara Bombaci Martín Boullhesen Tom Bradfer‐Lawrence Robert A. Briers Michał Budka Kenneth W. Burchard Alice Calvente Maite Cerezo‐Araujo Gunnar Cerwén М. Д. Чистополова Christopher W. Clark Benjamin Cretois Chapin Czarnecki Luís P. da Silva W. da Silva Laurence H. De Clippele D. Haye Ana Silvia de Oliveira Tissiani Devin R. de Zwaan Ricardo Díaz‐Delgado Pedro Diniz Dorgival Diógenes Oliveira-Júnior T. Dorigo Saskia Dröge Marina Henriques Lage Duarte Adam Duarte Kerry Dunleavy Robert P. Dziak Simon Élise Hiroto Enari Haruka S. Enari Florence Erbs Nina Ferrari Luane S. Ferreira Abram B. Fleishman Bárbara Freitas Nicholas R. Friedman Jérémy S. P. Froidevaux Svetlana S. Gogoleva Maria Isabel Carvalho Gonçalves Carolina Gonzaga José Miguel González Correa Eben Goodale Benjamin L. Gottesman Ingo Graß Jack Greenhalgh Jocelyn Grégoire Jonas Hagge William D. Halliday Antonia Hammer Tara Hanf‐Dressler Samara M. Haver Daniel Hending J. A. Hernandez-Blanco Thomas Hiller Joe Chun‐Chia Huang Kate Hutchinson Jonathan Jackson Alain Jacot Olaf Jahn Jasper Kanes Ellen Kenchington

Abstract The urgency for remote, reliable, and scalable biodiversity monitoring amidst mounting human pressures on climate ecosystems has sparked worldwide interest in Passive Acoustic Monitoring (PAM), but there been no comprehensive overview of its coverage across realms. We present metadata from 358 datasets recorded since 1991 above land water constituting the first global synthesis sampling spatial, temporal, ecological scales. compiled summary statistics (sampling locations, deployment...

10.1101/2024.04.10.588860 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2024-04-14

Singing by males is a major feature of the mating system humpback whales, Megaptera novaeangliae (Borowski).Although few songs have been opportunistically recorded on whales' high-latitude feeding grounds, singing in these regions was thought to be only sporadic.We report results from first continuous acoustic monitoring whale ground (off Cape Cod, MA, USA) spring.Using autonomous sea-floor recording systems, we found daily basis over entire 25 day period, 14 May 7 June 2000.For much song 24...

10.1098/rspb.2004.2699 article EN Proceedings of the Royal Society B Biological Sciences 2004-04-19

Abstract Archival bottom‐mounted audio recorders were deployed in nine different areas of the western Mediterranean Sea, Strait Gibraltar, and adjacent North Atlantic waters during 2006–2009 to study fin whale ( Balaenoptera physalus ) seasonal presence population structure. Analysis 29,822 recording hours revealed typical long, patterned sequences 20 Hz notes (here called “song”), back‐beats, 135–140 notes, downsweeps. Acoustic parameters (internote interval, note duration, frequency range,...

10.1111/j.1748-7692.2011.00491.x article EN Marine Mammal Science 2011-07-01

The North Atlantic right whale inhabits the coastal waters off east coasts of United States and Canada, areas characterized by high levels shipping fishing activities. Acoustic communication plays an important role in social behavior these whales increases low-frequency noise may be leading to changes their calling behavior. This study characterizes ambient levels, including both natural anthropogenic sources, upcall parameters three habitat areas. Continuous recordings were made seasonally...

10.1121/1.3050282 article EN The Journal of the Acoustical Society of America 2009-02-01
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