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Titolo:
Chlorophyll, bacteria and picophytoplankton in ecological provinces of theNorth Atlantic
Autore:
Li, WKW; Harrison, WG;
Indirizzi:
Bedford Inst Oceanog, Ocean Sci Div, Biol Oceanog Sect, Dartmouth, NS B2Y 4A2, Canada Bedford Inst Oceanog Dartmouth NS Canada B2Y 4A2 outh, NS B2Y 4A2, Canada
Titolo Testata:
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
fascicolo: 10, volume: 48, anno: 2001,
pagine: 2271 - 2293
SICI:
0967-0645(2001)48:10<2271:CBAPIE>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
MARINE-PHYTOPLANKTON; BIOMASS DISTRIBUTION; AQUATIC SYSTEMS; FLOW-CYTOMETRY; SARGASSO SEA; FRESH-WATER; OCEAN; PLANKTON; RESPIRATION; BACTERIOPLANKTON;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Physical, Chemical & Earth Sciences
Citazioni:
44
Recensione:
Indirizzi per estratti:
Indirizzo: Li, WKW Bedford Inst Oceanog, Ocean Sci Div, Biol Oceanog Sect, POB 1006, Dartmouth, NS B2Y 4A2, Canada Bedford Inst Oceanog POB 1006 Dartmouth NS Canada B2Y 4A2 , Canada
Citazione:
W.K.W. Li e W.G. Harrison, "Chlorophyll, bacteria and picophytoplankton in ecological provinces of theNorth Atlantic", DEEP-SEA II, 48(10), 2001, pp. 2271-2293

Abstract

A comparative ecology of chlorophyll, bacteria and picophytoplankton is presented for seven ecological provinces in the North Atlantic. Depth-integrated standing stocks of these biota were measured from boreal polar to subtropical gyral regions. Averaging over all sampling times and locations within each province, it appeared that the integrated biomass of bacteria did not exceed that of phytoplankton in any province. Although this biomass ratiooften exceeded unity in surface waters of the subtropical gyral provinces,the ratio for the upper water column as a whole was lowered by the subsurface chlorophyll layer. Bacteria and picophytoplankton, as the potential food resource of micrograzers, appeared to complement each other such that their total biomass did not vary much more than 2-fold amongst the seven provinces. Characteristic parameters of the biotic depth profiles, namely surface concentrations, integrated stocks and depth of maximum, were used to cluster the provinces. The original classification of provinces based on surface chlorophyll fields and characteristic regional physics was reinforced by the inclusion of bacteria and picophytoplankton. Crown Copyright (C) 2001 Published by Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 05:13:55