High impact information on Fur Seals

• In the meantime, PCB compositions in fur seals showed no temporal variation, suggesting a continuous input of PCBs into the marine environment in significant quantities [1].
• Antarctic fur seal pups, however, had significantly higher (t26=3.82, P<0.001) in-air resting metabolic rates (RMR; 17.1 +/- 0.6 ml O2 kg(-1) min(-1)) than subantarctic fur seal pups (14.1 +/- 0.5 ml O2 kg(-1) min(-1)) [2].
• The positional distribution of fatty acids has been determined for the milk triacylglycerols of the Antarctic fur seal, Arctocephalus gazella [3].
• Positional analyses of triacylglycerol fatty acids in the milk fat of the antarctic fur seal (Arctocephalus gazella) [3].
• Progesterone in Antarctic fur seals was undetectable from 1-2 days before parturition to 4-6 days after parturition [4].

Biological context of Fur Seals

• Changes in plasma progesterone and prolactin concentrations during the annual cycle and the role of prolactin in the maintenance of lactation and luteal development in the Antarctic fur seal (Arctocephalus gazella) [4].
• We have examined phylogenetic and geographic patterns of variation in the mitochondrial cytochrome b gene of Southern Hemisphere fur seals (Arctocephalus spp.). Our survey of 106 individuals from four putative species reveals three distinct patterns of variation reflecting ancient, recent historic, and contemporary gene flow [5].
• Northern fur seal pups increased energy intake over lactation, while concurrent changes in body composition and pelage condition resulted in mass-specific metabolic savings after the molt [6].

Anatomical context of Fur Seals

• An increase in vanadium accumulation in the liver of northern fur seals was caused by an increase of retention in nuclei and mitochondria fraction in the cells [7].

Associations of Fur Seals with chemical compounds

• Changes in plasma progesterone during the annual cycle show that the pattern in fur seals resembles that of some carnivores with embryonic diapause [4].
• Ketamine xylazine combination for the immobilisation of Galapagos sea lions and fur seals [8].
• The highest DDT concentrations measured in individual pinnipeds appear to be in the 1-15 micrograms g-1 range, and such levels have been recorded from ringed, grey, and harbour seals and Australian fur seals [9].
• In northern fur seals, relatively high concentrations of vanadium were observed in the liver, hair, and bone [7].
• Cadmium concentrations of the northern fur seals in this study were higher than the other otariids, reflecting a predominantly squid diet [10].

Gene context of Fur Seals

• Identification of constitutive androstane receptor cDNA in northern fur seal (Callorhinus ursinus) [11].
• Phylogenetic analysis demonstrated that the fur seal CAR was classified into CAR clade and not into PXR/BXR or VDR clade, suggesting the CARs would be conserved among divergent mammals including aquatic species [11].
• The present study was conducted to determine the residue levels of persistent organochlorines such as PCB homologues, DDT and its metabolites, and HCH isomers in the ventral blubber of female northern fur seal (Callorhinus ursinus) collected off Sanriku, the Pacific coast of northern Japan, since 1971 [12].
• Lipoprotein lipase in lactating and neonatal northern fur seals: exploring physiological management of energetic conflicts [13].
• In the northern fur seals with higher concentration of mercury, the molar ratio of selenium to mercury approached unity in the nonextractable fraction of 0.25 mol/L 2-mercaptoethanol + 5 mol/L guanidinium thiocyanate, suggesting the possible formation of mercuric selenide (HgSe) with increasing hepatic concentration [14].

Analytical, diagnostic and therapeutic context of Fur Seals

• Immobilization of Juan Fernandez fur seals, Arctocephalus philippii, with ketamine hydrochloride and diazepam [15].
• The available data suggest that two functions of USWS/EEG asymmetry during SWS in Cetaceans and fur seals are multisensory control of the environment and maintenance of motion and postures of sleep [16].

References