Marine Biology

Download Biology of the Southern Ocean by George A. Knox PDF

By George A. Knox

First released in 1993, The Biology of the Southern Ocean has been known as foreign examine at its most sensible and a useful reference. Drawing at the massive quantity of knowledge released within the final ten years, this moment variation keeps the layout that made the 1st version a well-liked bestseller, whereas updating the data with the newest learn effects on hand. The booklet starts off with an outline of the physico-chemical surroundings and, in a logical series, covers phytoplankton and first construction, the ocean ice microbial groups and the secondary shoppers, the zooplankton. the writer comprises a longer bankruptcy at the biology and ecology of Antarctic krill that highlights its primary place within the Southern Ocean nutrients internet. a chain of chapters give some thought to the better shoppers, nekton (with an emphasis on cephalopods) fish, seals, whales, and seabirds. the next chapters discover chosen atmosphere elements; the benthic groups, lifestyles underneath the quick ice and ice cabinets, contemporary advances in knowing decomposition techniques, and the function of micro organism and protozoa. the writer synthesizes atmosphere dynamics, with an emphasis at the pelagic surroundings. He covers source exploitation, the effect of such exploitation at the marine environment, and the issues thinking about the administration of the residing assets. His epilogue summarizes the level to which our knowing of the functioning of the Antarctic marine surroundings has replaced within the final 50 years; for instance, there was a dramatic swap in our view of krill and its function within the Southern Ocean marine environment. The booklet concludes with the assertion that examine conducted lower than the AGCS Programme and the medical Committee on Antarctic learn (SCAR) will proceed to supply serious details at the functioning of Antarctic marine ecosystems. meant for all people with an ongoing curiosity in Antarctic study, conservation, and administration, this quantity represents some of the most authoritative assets within the box because it covers all points of this crucial marine surroundings.

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Sample text

These size groupings are indicative of the organisms’ growth and metabolic rates, which are generally a function of size (Ikeda 1970; Sheldon et al. 1972). 1 shows that there is little overlap between the size categories and compartmental groups of plankton organisms, with the exception of the phytoplankton and protozooplankton, which occupy the same size categories. , capable of ingesting phytoplankton (see Chapter 14). 2 DATA BASE The study of marine phytoplankton in the Southern Ocean dates back over a century and a half, to when J.

Despite these deficiencies, however, comparative chlorophyll a levels are useful in overall comparisons, both geographically and seasonally. Chlorophyll a concentrations are expressed as values per cubic meter of the total water column beneath a square meter of the water surface. 2 SURFACE DISTRIBUTION BIOMASS OF CHLOROPHYLL Chlorophyll biomass varies widely, both geographically and seasonally, throughout the Southern Ocean (Saijo and Kawashi 1964; El-Sayed and Mandelli 1965; El-Sayed 1970a; Fukuchi 1977, 1980; Bidigare et al.

Despite these deficiencies, however, comparative chlorophyll a levels are useful in overall comparisons, both geographically and seasonally. Chlorophyll a concentrations are expressed as values per cubic meter of the total water column beneath a square meter of the water surface. 2 SURFACE DISTRIBUTION BIOMASS OF CHLOROPHYLL Chlorophyll biomass varies widely, both geographically and seasonally, throughout the Southern Ocean (Saijo and Kawashi 1964; El-Sayed and Mandelli 1965; El-Sayed 1970a; Fukuchi 1977, 1980; Bidigare et al.

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