Chapter 3 Antarctic Marine Biodiversity : Adaptations, Environments and Responses to Change

Animals living in the Southern Ocean have evolved in a singular environment. It shares many of its attributes with the high Arctic, namely low, stable temperatures, the pervading effect of ice in its many forms and extreme seasonality of light and phytobiont productivity. Antarctica is, however, the...

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Main Author: Peck, Lloyd S. (auth)
Format: Book Chapter
Published: Taylor & Francis 2018
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Online Access:Get Fullteks
DOAB: description of the publication
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245 1 0 |a Chapter 3 Antarctic Marine Biodiversity : Adaptations, Environments and Responses to Change 
260 |b Taylor & Francis  |c 2018 
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520 |a Animals living in the Southern Ocean have evolved in a singular environment. It shares many of its attributes with the high Arctic, namely low, stable temperatures, the pervading effect of ice in its many forms and extreme seasonality of light and phytobiont productivity. Antarctica is, however, the most isolated continent on Earth and is the only one that lacks a continental shelf connection with another continent. This isolation, along with the many millions of years that these conditions have existed, has produced a fauna that is both diverse, with around 17,000 marine invertebrate species living there, and has the highest proportions of endemic species of any continent. The reasons for this are discussed. The isolation, history and unusual environmental conditions have resulted in the fauna producing a range and scale of adaptations to low temperature and seasonality that are unique. The best known such adaptations include channichthyid icefish that lack haemoglobin and transport oxygen around their bodies only in solution, or the absence, in some species, of what was only 20 years ago termed the universal heat shock response. 
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650 7 |a Biology, life sciences  |2 bicssc 
650 7 |a Marine biology  |2 bicssc 
650 7 |a Environmental science, engineering & technology  |2 bicssc 
653 |a oceanography 
653 |a marine biology 
653 |a environment 
653 |a climate change 
653 |a climate change impacts 
653 |a Southern Ocean 
653 |a high Arctic 
653 |a ice 
653 |a seasonality 
653 |a phytobiont productivity 
653 |a Antarctica 
653 |a Antarctic fauna 
653 |a marine invertebrate species 
653 |a endemic species 
653 |a low temperature adaptations 
653 |a seasonality adaptions 
653 |a channichthyid icefish 
653 |a universal heat shock response 
653 |a gametogenic cycles 
653 |a vitellogenesis 
653 |a microtubule assembly 
653 |a locomotion 
653 |a metabolic rate 
653 |a whole-animal growth 
653 |a embryonic development 
653 |a limb regeneration 
653 |a echinoderms 
653 |a Southern Ocean fauna 
653 |a ecophysiological adaptations 
653 |a coldblooded marine species 
773 1 0 |0 OAPEN Library ID: 1007866  |t Oceanography and Marine Biology  |7 nnaa 
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