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SUMMARY:There be monsters:  adaptations in Antarctic marine animals - Prof
 essor Lloyd Peck\, British Antarctic Survey
DTSTART:20190503T164500Z
DTEND:20190503T181000Z
UID:TALK118258@talks.cam.ac.uk
CONTACT:Dr Antonio M. M. Rodrigues
DESCRIPTION:Antarctic marine species have evolved over millions of years i
 n cold\, thermally stable\, but also seasonally intense conditions.  In re
 sponse to this many unique adaptations have been produced including antifr
 eeze in fish\, an absence of haemoglobin in Channichthyd fish and the abse
 nce of a heat shock response in some species.  Recently it has been shown 
 that the vast majority of biological processes are slowed in Antarctic mar
 ine species compared to those from warmer water sites.  For respiration\, 
 aerobic capacity and activity the slowing in Antarctic species compared to
  temperate and tropical species is in line with the expected effect of tem
 perature on biological functions as first described by Arrhenius over 100 
 years ago.  For other processes\, such as growth\, embryonic development a
 nd the duration of elevated metabolic rates after feeding\, the slowing is
  much greater than the expected effect of temperature.  This talk presents
  these data and then shows why the impact of low temperature on protein sy
 nthesis is the likely reason for these differing results
LOCATION:Wolfson College\, Gatsby Room
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