Results 171 to 180 of about 14,752 (205)
Some of the next articles are maybe not open access.
Acoustic interaction of humpback whales and whale-watching boats
Marine Environmental Research, 2000The underwater acoustic noise of five representative whale-watching boats used in the waters of west Maui was measured in order to study the effects of boat noise on humpback whales. The first set of measurements were performed on 9 and 10 March, close to the peak of the whale season.
W W, Au, M, Green
openaire +2 more sources
Humpback whale song or humpback whale sonar? A reply to Au et al
IEEE Journal of Oceanic Engineering, 2001Au et al.'s arguments against the hypothesis that humpback whale songs function as long-range sonar are based on questionable assumptions rather than on empirical data. Like other echolocating mammals (e.g., bats), singing humpback whales: 1) localize targets in the absence of visual information; 2) possess a highly innervated peripheral auditory ...
E. Mercado, L.N. Frazer
openaire +1 more source
Humpback Whale’s Flukes Segmentation Algorithms
2021Photo-identification consists of the analysis of photographs to identify cetacean individuals based on unique characteristics that each specimen of the same species exhibits. The use of this tool allows us to carry out studies about the size of its population and migratory routes by comparing catalogues. However, the number of images that make up these
Castro Cabanillas, Andrea +1 more
openaire +2 more sources
Humpback whale song: who sings?
Behavioral Ecology and Sociobiology, 2013While on their winter breeding grounds, male humpback whales (Megaptera novaeangliae) produce long sequences of structured vocalizations called song, whose function within the mating system is still unresolved. Here we ask which males sing. Is it only those sexually mature, as typifies songbirds and some lekking ungulates in which vocalizations during ...
Louis M. Herman +6 more
openaire +1 more source
Cetacean morbillivirus in Humpback whales’ exhaled breath
Transboundary and Emerging Diseases, 2020The humpback whale (HW; Megaptera novaeangliae) population that seasonally resides along the Brazilian coast concentrates in the Abrolhos Bank (Bahia and Espírito Santo states) for breeding during austral winter and spring. Cetacean morbillivirus (CeMV, Paramyxoviridae family) is currently one of the most significant biological threats to cetaceans ...
Kátia R. Groch +6 more
openaire +2 more sources
Science (New York, N.Y.), 2010
1) Humpback whales (Megaptera novaeangliae) produce a series of beautiful and varied sounds for a period of 7 to 30 minutes and then repeat the same series with considerable precision. We call such a performance "singing" and each repeated series of sounds a "song." 2) All prolonged sound patterns (recorded so far) of this species are in song form, and
R S, Payne, S, McVay
openaire +1 more source
1) Humpback whales (Megaptera novaeangliae) produce a series of beautiful and varied sounds for a period of 7 to 30 minutes and then repeat the same series with considerable precision. We call such a performance "singing" and each repeated series of sounds a "song." 2) All prolonged sound patterns (recorded so far) of this species are in song form, and
R S, Payne, S, McVay
openaire +1 more source
Hydrodynamic design of the humpback whale flipper
Journal of Morphology, 1995AbstractThe humpback whale (Megaptera novaeangliae) is reported to use its elongate pectoral flippers during swimming maneuvers. The morphology of the flipper from a 9.02‐m whale was evaluated with regard to this hydrodynamic function. The flipper had a wing‐like, high aspect ratio plan‐form.
F E, Fish, J M, Battle
openaire +2 more sources
Visualizing the underwater behavior of humpback whales
IEEE Computer Graphics and Applications, 2006A new collaboration between visualization experts, engineers, and marine biologists has changed. For the first time, we can see and study the foraging behavior of humpback whales. Our study's primary objective was furthering the science of marine mammal ethology.
Ware, Colin +3 more
openaire +3 more sources