Results 61 to 70 of about 2,695 (135)

Spatio‐Temporal Patterns in Relative Abundance and Distribution of Southern Right Whales in Southwestern Australia, 2021–2024

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Southern right whales (Eubalaena australis) are listed as Endangered in Australia due to past commercial exploitation. Currently, they are experiencing contemporary declines in population growth rates. Knowledge of critical periods and habitats in whale occupancy and reproduction is crucial for conservation efforts.
Katy Fannei   +7 more
wiley   +1 more source

Humpback Whale (Megaptera novaeangliae) Site Fidelity, Residency, and Movement Patterns in Ireland Based on Citizen Science Data

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Understanding the residency and movement patterns of large cetaceans like the humpback whale is crucial for effective conservation. In Ireland, the Irish Whale and Dolphin Group has been collecting humpback whale data since the 1990s, primarily through citizen science.
Miguel Blázquez   +6 more
wiley   +1 more source

Stable Isotope Analysis (δ13C and δ15N) of Baleen Plates Reveals Feeding Patterns in Stranded Humpback Whales (Megaptera novaeangliae) Along the Brazilian Coast

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Humpback whales (Megaptera novaeangliae) from breeding stock A migrate annually between Antarctic feeding grounds (~65° S) and Brazilian breeding areas (~17° S). Traditionally considered to fast during migration, recent feeding observations and increased strandings along southeastern Brazil (~23° S) raise questions about possible shifts in ...
Daniel Fonseca Zappa   +8 more
wiley   +1 more source

Drone-based photogrammetry reveals differences in humpback whale body condition and mass across North Atlantic foraging grounds

open access: yesFrontiers in Marine Science
Baleen whales are key consumers in marine ecosystems and can serve as ecosystem sentinels. Body condition, defined as an individual’s energy stores relative to its structural size, can provide a useful proxy for health in baleen whales.
Chelsi Napoli   +19 more
doaj   +1 more source

Blubber Cellular Integrity Through Decomposition and Its Implication for Histological Applications: A Study of Stranded Stock A Humpback Whales (Megaptera novaeangliae)

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Marine mammal strandings can provide unique and valuable insights into individual and population health, ranging from infectious diseases to anthropogenic threats. However, the level of decomposition of carcasses can interfere with the assessment of important indicators, such as an individual's nutritional status.
Lara Bennati‐Madureira   +8 more
wiley   +1 more source

Killer Whales in the Central Tropical Pacific: Occurrence, Resightings, Morphology, and Acoustics

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Compared to their well‐studied coastal temperate counterparts, killer whales (Orcinus orca) in tropical‐subtropical and oceanic areas are under‐documented. We used sighting, photo‐identification, and acoustic data of killer whales in the central tropical Pacific (CTP), collected from multiple platforms between 2002 and 2023, to assess their ...
Marie C. Hill   +4 more
wiley   +1 more source

Microplastic Munchies: Exploring Microplastic Trophic Transfer Potential Between Two Key Prey Fish Species and Resident Common Bottlenose Dolphins (Tursiops truncatus) in Sarasota Bay, Florida

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Microplastics have been identified in hundreds of species, with evidence of trophic transfer via contaminated prey. Sarasota Bay common bottlenose dolphins (Tursiops truncatus) serve as sentinels of coastal pollution, including plastics and chemical plasticizers. Previous research confirmed microplastic ingestion in these dolphins (100.0%, n = 
Estella Martin   +12 more
wiley   +1 more source

Machine Learning Detection of Scarring Events in Killer Whales

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Detection and analysis of body scars using photo‐identification data of cetaceans can provide insights into life history, behavior, and exposure to threats, but such analyses typically require manual examination of large image datasets. To explore whether machine learning can assist this process, we developed a pipeline for automatically ...
Alexander Barnhill   +6 more
wiley   +1 more source

Adaptive Acoustic Monitoring for Endangered Cook Inlet Beluga Whales in Complex Soundscapes

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Effective conservation of the endangered Cook Inlet beluga whale (Delphinapterus leucas) requires comprehensive spatiotemporal data, yet monitoring efforts remain spatially biased, underrepresenting important southern habitats. Passive acoustic monitoring (PAM) provides the necessary broad‐scale coverage, but its expansion introduces ...
Manuel Castellote   +7 more
wiley   +1 more source

Listening to Bryde's Whales With an Island Seismometer: Low‐Frequency Call Detection and Seasonal Patterns Revealed by Deep Learning

open access: yesGeophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Bryde's whales form a major coastal aggregation in the Beibu Gulf, China. Using 1 year of continuous island‐based seismic recordings from Xieyang Island, we established a large labeled data set of coastal Bryde's whale calls with more than 1.7 million samples.
Zhuo Xiao   +6 more
wiley   +1 more source

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