Lynne E. W. Hodge

Gulf of Mexico Deepwater Seismic Airgun Recordings 2010-2024

Sean M. Wiggins, Vanessa M. ZoBell, Lynne E. W. Hodge, Melissa S. Soldevilla et autres

In this report, we evaluate underwater sounds recorded at various locations around the GOM over a 14- year period (2010-2024), and spatio-temporally correlate these recordings with seismic airgun survey vessel activity using Global Positioning System (GPS) locations from the Automated Information System …

Characterization and modeling source levels of commercial vessels in the Gulf of Mexico

Katrina H. Johnson, Vanessa M. ZoBell, Lynne E. W. Hodge, Melissa S. Soldevilla et autres

The Gulf of Mexico is among the noisiest marine regions globally, primarily due to widespread seismic airgun operations and vessel traffic. While airguns dominate the low-frequency soundscape, vessel traffic also contributes substantial high-amplitude noise in the same range low-frequency band (<500 Hz). …

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Gulf of Mexico soundscape dominated by anthropogenic contributors

Vanessa M. ZoBell, Lynne E. W. Hodge, Sean M. Wiggins, John Hildebrand et autres

The Gulf of Mexico is a biodiversity hotspot, encompassing diverse habitats ranging from coral reefs to deep-sea seeps and supporting an array of marine species. Anthropogenic activity in the region, however, is widespread, with over 3000 actively drilling oil rigs including associated …

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A decade of declines in toothed whale densities following the Deepwater Horizon oil spill

Kaitlin E. Frasier, Macey Kadifa, Alba Solsona‐Berga, John A. Hildebrand et autres

Abstract Shortly after the Deepwater Horizon oil spill began in April 2010, a widely spaced passive acoustic monitoring array was deployed in the northeastern Gulf of Mexico to document the impacts of this unprecedentedly large and deep offshore oil spill on oceanic …

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Heard but not seen: Occurrence of Kogia spp. along the western North Atlantic shelf break

Lynne E. W. Hodge, Simone Baumann‐Pickering, John A. Hildebrand, Joel T. Bell et autres

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Long-term passive acoustic recordings track the changing distribution of North Atlantic right whales (Eubalaena glacialis) from 2004 to 2014

Genevieve E. Davis, Mark F. Baumgartner, Julianne M. Bonnell, Joel T. Bell et autres

Given new distribution patterns of the endangered North Atlantic right whale (NARW; Eubalaena glacialis) population in recent years, an improved understanding of spatio-temporal movements are imperative for the conservation of this species. While so far visual data have provided most information on …

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Geographic variation in Risso's dolphin echolocation click spectra

Melissa S. Soldevilla, Simone Baumann‐Pickering, Danielle Cholewiak, Lynne E. W. Hodge et autres

Discrimination of bioacoustic signals to the species or population level is critical for using passive acoustic monitoring to study cetacean ecology. Risso's dolphins off southern California have distinctive peaks and notches in their echolocation clicks, but it was unknown whether Risso's dolphins …

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Using passive acoustic monitoring to document the distribution of beaked whale species in the western North Atlantic Ocean

Joy E. Stanistreet, Douglas P. Nowacek, Simone Baumann‐Pickering, Joel T. Bell et autres

Little is known about the ecology of many beaked whale species, despite concerns raised by mass strandings linked to certain sources of anthropogenic noise. Here, we used passive acoustic monitoring to examine spatial and temporal patterns in beaked whale occurrence at six …

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Seasonal migrations of North Atlantic minke whales: novel insights from large-scale passive acoustic monitoring networks

Denise Risch, Manuel Castellote, Christopher W. Clark, Genevieve E. Davis et autres

BACKGROUND: Little is known about migration patterns and seasonal distribution away from coastal summer feeding habitats of many pelagic baleen whales. Recently, large-scale passive acoustic monitoring networks have become available to explore migration patterns and identify critical habitats of these species. North …

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Do spectral features of Risso's dolphin echolocation clicks vary geographically?

Melissa S. Soldevilla, Lance Garrison, Simone Baumann‐Pickering, Danielle Cholewiak et autres

The ability to classify odontocetes to species and population from acoustic recordings leads to improvements in stock identification, abundance and density estimation, and habitat-based density modeling, which are crucial for conservation and management. Risso's dolphins off Southern California have distinctive peaks and …

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Seasonal migrations of North Atlantic minke whales: novel insights from large-scale passive acoustic monitoring networks

Denise Risch, Manuel Castellote, Christopher W. Clark, Genevieve E. Davis et autres

Little is known about migration patterns and seasonal distribution away from coastal summer feeding habitats of many pelagic baleen whales. Recently, large-scale passive acoustic monitoring networks have become available to explore migration patterns and identify critical habitats of these species. North Atlantic …

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Abundance of Bottlenose Dolphins (Tursiops truncatus) in Estuarine and Near-Shore Waters of North Carolina, USA

Kim W. Urian, Danielle M. Waples, Reny B. Tyson, Lynne E. W. Hodge et autres

Abstract A capture-recapture survey of bottlenose dolphins (Tursiops truncatus) was conducted in the sounds, estuaries and near-shore waters of North Carolina during July 2006, using photographic identification techniques; 291 dolphins were identified from distinctive nicks and notches on their dorsal fins. The …

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