By Alan R. Longhurst
This publication offers an in-depth dialogue of the organic and ecological geography of the oceans. It synthesizes in the neighborhood limited stories of the sea to generate an international geography of the colossal marine world.Based on styles of algal ecology, the publication divides the sea into 4 basic booths, that are then subdivided into secondary cubicles. *Includes colour insert of the newest in satellite tv for pc imagery exhibiting the world's oceans, their similarities and differences*Revised and up to date to mirror the newest in oceanographic research*Ideal for someone drawn to knowing ocean ecology -- available and informative
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Extra resources for Ecological Geography of the Sea, Second Edition 2nd edition by Longhurst, Alan R. (2006) Paperback
Of course, for microbiota—archaea, bacteria, cyanobacteria, and prochlorophytes—a taxonomy that mingles numbered or named clades with Linnaean genera and species has proved essential where cell form is of little or no assistance in classification. I see no reason why the same approach should not have been taken with macrobiota. Whichever way the current fashion for “phylogenetic taxonomy” goes, we ought now to be aware that two very different categories of “species” are already accommodated within the existing taxonomy of both macroinvertebrates and vertebrates.
For instance, the tiny medusa Halamohydra is <1 0 mm long and lives between sand grains. These interstitial organisms comprise both protists and metazoans and their interest for us is the complexity of their ecological relations, and how these change with the nature of the substrate. Although mostly investigated along the shore and in shallow water, the interstitial fauna is known to extend to great depths and even into anoxic, reducing sediments of the shelf where ciliates and zooflagellates dominate.
B) Standing stock is equivalent to about one-half to three days’ productivity. The analysis, based on CZCS data, is split between oceans and biomes. 1987) is generally believed to comprise only around 5% of total primary production in oligotrophic areas, 10–15% in productive oceanic situations, and 25–30% in coastal waters. Given the already recycled nature of much of this material, and the degradation of chlorophyll in it, these figures are not out of line with what is suggested by the satellite observations of chlorophyll.