XI.—The Anatomy of the Northern Beluga (Beluga catodon, Gray; Delphinapterus leucas, Pallas) compared with that of other Whales
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چکیده
منابع مشابه
Visual field organization and retinal resolution of the beluga, Delphinapterus leucas (Pallas)
The distribution and size of ganglion cells in the retina of three retinal wholemounts of beluga whales (Delphinapterus leucas) were investigated. Cell sizes were from 12 to 48 #m with monomodal size distribution. Ganglion cells concentrated at two spots of high density in the nasal and temporal quadrants, 50 to 60% from the optic disk. Both areas appeared as vertically elongated spots. The mea...
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A small isolated population of beluga whales (Delphinapterus leucas) that are highly contaminated by pollutants, mostly of industrial origin, resides in the St. Lawrence estuary, Québec, Canada. Overhunting in the first half of the century was the probable cause for this population to dwindle from several thousand animals to the current estimate of 500. The failure of the population to recover ...
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Reverse transcription quantitative PCR (RT-qPCR) is used for research in gene expression, and it is vital to choose appropriate housekeeping genes (HKGs) as reference genes to obtain correct results. The purpose of this study is to determine stably expressed HKGs in blood of beluga whales (Delphinapterus leucas) that can be the appropriate reference genes in relative quantification in gene expr...
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The beluga whale is a cetacean that inhabits arctic and subarctic regions, and is the only living member of the genus Delphinapterus. The genome of the beluga whale was determined using DNA sequencing approaches that employed both microfluidic partitioning library and non-partitioned library construction. The former allowed for the construction of a highly contiguous assembly with a scaffold N5...
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This paper aims to analyze the physiological, perceptual, and behavioral adaptations in the Beluga Whale (Delphinapterus leucas) as a result of its arctic niche. The social implications of these adaptations will be examined by looking at each part as influential elements of each other. Lastly, the idea of defining culture in cetaceans will be addressed, including a proposal for examining cultur...
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ژورنال
عنوان ژورنال: Transactions of the Royal Society of Edinburgh
سال: 1880
ISSN: 0080-4568,2053-5945
DOI: 10.1017/s0080456800028556