Results 71 to 80 of about 9,430 (204)

Numerical Investigation on Flow Separation Control of Low Reynolds Number Sinusoidal Aerofoils [PDF]

open access: yes, 2016
The paper presents a computational analysis of the characteristics of a NACA 634- 021 aerofoil incorporated with sinusoidal leading-edge protuberances at Re = 14,000. The protuberances are characterized by an amplitude and wavelength of 12% and 50% of
Cai C.   +4 more
core   +1 more source

Discovery of sexual dimorphism of the laryngeal sac in the common minke whale Balaenoptera acutorostrata

open access: yesThe Anatomical Record, Volume 309, Issue 2, Page 397-416, February 2026.
Abstract Mysticetes, or baleen whales, have an air sac on the ventral surface of the larynx known as the “laryngeal sac.” The primary hypothesis regarding this structure's function is that it is involved in sound production. However, several other functions have been proposed, including air recycling, air storage, and even buoyancy control.
Gen Nakamura   +7 more
wiley   +1 more source

Effect of Leading Edge Protuberance on Thrust Production of a Dynamically Pitching Aerofoil [PDF]

open access: yes, 2017
The paper presents a computational analysis of the characteristics of a NACA 634-021 aerofoil modified by incorporating sinusoidal leading-edge protuberances at Re = 14,000.
Benaissa, M.   +3 more
core   +2 more sources

Facilitative interspecific interactions in marine vertebrates across scales: from individuals to ecosystems

open access: yesBiological Reviews, Volume 101, Issue 1, Page 519-538, February 2026.
ABSTRACT Facilitative interspecific interactions (FIIs) confer benefits to at least one participant without detriment to others. Although often less emphasised than antagonistic interactions in ecological studies, this review highlights the significant ecological role of FIIs across biological scales – from individual behaviours to population ...
Eduardo Döbber Vontobel   +5 more
wiley   +1 more source

Humpback whales interfering when mammal-eating killer whales attack other species: mobbing behavior and interspecific altruism? [PDF]

open access: yes, 2016
Humpback whales (Megaptera novaeangliae) are known to interfere with attacking killer whales (Orcinus orca). To investigate why, we reviewed accounts of 115 interactions between them. Humpbacks initiated the majority of interactions (57% vs.
Black, Nancy   +13 more
core   +2 more sources

Vulnerability of marine megafauna to global at‐sea anthropogenic threats

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened ...
Michelle VanCompernolle   +309 more
wiley   +1 more source

VARAMIENTOS Y AVISTAMIENTOS DE BALLENAS EDENTADAS (CETACEA: MYSTICETI) EN COSTAS Y AGUAS CUBANAS.

open access: yesRevista de Investigaciones Marinas, 2023
En la actualidad es insuficiente la información que se posee sobre las ballenas que se presentan en el archipiélago cubano. El presente trabajo tiene como objetivo recopilar toda la información existente sobre estos cetáceos varados o avistados en ...
Miriam Blanco
doaj  

Quantifying humpback whale song sequences to understand the dynamics of song exchange at the ocean basin scale [PDF]

open access: yes, 2013
Humpback whales have a continually evolving vocal sexual display, or "song," that appears to undergo both evolutionary and "revolutionary" change. All males within a population adhere to the current content and arrangement of the song. Populations within
Anne W. Goldizen   +17 more
core   +1 more source

Spondylitis in a humpback whale (Megaptera novaeangliae) from the southeast Pacific [PDF]

open access: yesDiseases of Aquatic Organisms, 2007
A 7.25 m long male humpback whale (Megaptera novaeangliae) with spondylitis was found beached on August 13, 1994 at Ancon, Ecuador (2 degrees 23' S, 80 degrees 47' W). The condition involved at least 11 vertebrae, 7 lumbar (L4 to L11) and 4 caudal (Ca1 to Ca4).
Fernando, Félix   +2 more
openaire   +2 more sources

Linking oceanic variability, euphausiid hotspot persistence, and marine predator distribution along Canada's west coast

open access: yesEcological Applications, Volume 36, Issue 1, January 2026.
Abstract Understanding patterns of habitat use across trophic levels and the physical drivers of multispecies aggregations is essential to inform ecosystem‐based management. To achieve this, we quantified the spatial distribution and co‐occurrence of hotspots (defined using the Getis‐Ord statistic) for euphausiids and nine of their commercially ...
Rhian Evans   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy