Results 61 to 70 of about 4,896 (237)
ABSTRACT Three sturgeon species—the common European (A. sturio), beluga (H. huso), and Adriatic sturgeon (A. naccarii)—coexisted in the Po River Basin until the mid‐1970s, representing centuries of bio‐cultural heritage for northern Italy's riverine communities.
Samuele Pagani +5 more
wiley +1 more source
Chiral thioacetyl derivatives of proline as novel potential agents for beluga reproduction
The aim of the research was to study antioxidant activity and protective potential of new phenol-containing thioacetyl derivatives of D- and L-prolines as potential agents on beluga sperm and survival in the early stages of ontogeny of bester (Huso x ...
Victoria P. Osipova +7 more
doaj +1 more source
Localization and tracking of beluga whales in aerial video using deep learning
Aerial images are increasingly adopted and widely used in various research areas. In marine mammal studies, these imagery surveys serve multiple purposes: determining population size, mapping migration routes, and gaining behavioral insights.
Mostapha Alsaidi +6 more
doaj +1 more source
The respiratory microbiota of three cohabiting beluga whales (Delphinapterus leucas) under human care [PDF]
Susan A. Smith +4 more
openalex +1 more source
ABSTRACT Monitoring live and stranded cetaceans can be expensive and logistically challenging, resulting in knowledge gaps. Very high‐resolution (VHR) optical satellites are considered a potential solution to addressing some of these gaps. Despite success at detecting live and stranded cetaceans, satellites have only been trialed on restricted ...
Penny J. Clarke +8 more
wiley +1 more source
To compare the reproductive performance of the wild and cultured stocks of beluga, Huso huso males, some spermatological parameters were measured including: sperm motility, sperm density, spermatocrit and also fertilization rate, hatching rate and ...
Madadi, Z., Khara, H.
doaj
Limiting disturbance in critical habitats is an important part of ensuring the well-being and sustainability of populations at risk, such as Cumberland Sound beluga whales (Delphinapterus leucas). Using non-disruptive Very High Resolution (VHR) satellite
Amanda M. Belanger +5 more
doaj +1 more source
Comparison of fatty acids biochemical quality in the caviar of reared and wild beluga, Huso huso [PDF]
In this study, the quality of fatty acids in sturgeon caviar were assessed and compared in rearedand wild specimens of beluga, Huso huso caught from the Caspian Sea. The fatty acids profile, n3/n6 and atherogenic and thrombogenic index were also measured.
Seyed Vali Hosseini +2 more
doaj
ABSTRACT Fraser's dolphin (Lagenodelphis hosei) remains poorly studied due to its elusive behavior, rarity, and preference for deep offshore habitats. While dolphins use frequency‐modulated whistles for communication, detailed acoustic descriptions exist for only a few species.
Laura J. May‐Collado +6 more
wiley +1 more source

