Filters: Tags: Cryobiology (X)42 results (82ms)
Research Results and Perspectives of the Program: Low Temperature Gene Bank of Marketable, Rare and Endangered Fish and Aquatic Invertebrate Species
Osmotic tolerance of avian spermatozoa: Influence of time, temperature, cryoprotectant and membrane ion pump function on sperm viability
Potential factors influencing sperm survival under hypertonic conditions were evaluated in the Sandhill crane (Grus canadensis) and turkey (Meleagridis gallopavo). Sperm osmotolerance (300-3000 mOsm/kg) was evaluated after: (1) equilibration times of 2, 10, 45 and 60 min at 4 ?C versus 21 ?C; (2) pre-equilibrating with dimethylacetamide (DMA) or dimethylsulfoxide (Me2SO) at either 4 ?C or 21 ?C; and (3) inhibition of the Na+/K+ and the Na+/H+ antiporter membrane ionic pumps. Sperm viability was assessed using the eosin-nigrosin live/dead stain. Species-specific differences occurred in response to hypertonic conditions with crane sperm remaining viable under extreme hypertonicity (3000 mOsm/kg), whereas turkey sperm...
Elevated concentrations and synthetic pathways of trimethylamine oxide and urea in some teleost fishes of McMurdo Sound, Antarctica
Microbial ecology of sea ice at a coastal Antarctic site: Community composition, biomass and temporal change
Wintertime biological studies in the Pechora and Kara Seas aboard ice breakers along the Arctic sea route.
IBAMAs Role in Conservation of Fisheries Resources in Brazil: Aquaculture and Fisheries Management by Hydrographic Basin