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Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues > Evolution
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Deep-Sea Food Chains and the Global Carbon Cycle (Paperback, Softcover reprint of the original 1st ed. 1992)
Loot Price: R1,557
Discovery Miles 15 570
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Deep-Sea Food Chains and the Global Carbon Cycle (Paperback, Softcover reprint of the original 1st ed. 1992)
Series: NATO Science Series C, 360
Expected to ship within 10 - 15 working days
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Carbon dioxide and other `greenhouse' gases are increasing in the
atmosphere due to the burning of fossil fuels, the destruction of
rain forests, etc., leading to predictions of a gradual global
warming which will perturb the global biosphere. An important
process which counters this trend toward potential climate change
is the removal of carbon dioxide from the surface ocean by
photosynthesis. This process packages carbon in phytoplankton which
enter the food chain or sink into the deep sea. Their ultimate fate
is a `rain' of organic debris out of the surface-mixed layer of the
ocean. On a global scale, the mechanisms and overall rate of this
process are poorly known. The authors of the 25 papers in this
volume present their state-of-the-art approaches to quantifying the
mechanisms by which the `rain' of biogenic debris nourishes deep
ocean life. Prominent deep sea ecologists, geochemists and modelers
address relationships between data and models of carbon fluxes and
food chains in the deep ocean. An attempt is made to estimate the
fate of carbon in the deep sea on a global scale by summing up the
utilization of organic matter among all the populations of the
abyssal biosphere. Comparisons are made between these ecological
approaches and estimates of geochemical fluxes based on sediment
trapping, one-dimensional geochemical models and horizontal
(physical) input from continental margins. Planning
interdisciplinary enterprises between geochemists and ecologists,
including new field programs, are summarized in the final chapter.
The summary includes a list of the important gaps in understanding
which must be addressed before the role of the deep-sea biota in
global-scale processes can be put in perspective.
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