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Titolo:
SALINITY INFLUENCES BODY-WEIGHT QUANTIFICATION IN THE SCYPHOMEDUSA AURELIA-AURITA - IMPORTANT IMPLICATIONS FOR BODY-WEIGHT DETERMINATION INGELATINOUS ZOOPLANKTON
Autore:
HIRST AG; LUCAS CH;
Indirizzi:
SOUTHAMPTON OCEANOG CTR,GEORGE DEACON DIV,DEPT OCEANOG,EMPRESS DOCK SOUTHAMPTON SO14 3ZH HANTS ENGLAND
Titolo Testata:
Marine ecology. Progress series
, volume: 165, anno: 1998,
pagine: 259 - 269
SICI:
0171-8630(1998)165:<259:SIBQIT>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
POPULATION-DYNAMICS; BIOCHEMICAL-COMPOSITION; KIEL BIGHT; ABUNDANCE; MEDUSAE; GROWTH; BAY; TROPHODYNAMICS; PREDATION; SCYPHOZOA;
Keywords:
AURELIA AURITA; WET WEIGHT; DRY WEIGHT; ASH-FREE DRY WEIGHT; ASH WEIGHT; SALINITY; WATER OF HYDRATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
46
Recensione:
Indirizzi per estratti:
Citazione:
A.G. Hirst e C.H. Lucas, "SALINITY INFLUENCES BODY-WEIGHT QUANTIFICATION IN THE SCYPHOMEDUSA AURELIA-AURITA - IMPORTANT IMPLICATIONS FOR BODY-WEIGHT DETERMINATION INGELATINOUS ZOOPLANKTON", Marine ecology. Progress series, 165, 1998, pp. 259-269

Abstract

Comparisons are made between bell diameter:weights (wet, dry, ash-free dry, ash and elemental) relationships for the scyphomedusa Aurelia aurita (L.). There are significant differences in the relationships between bell diameter and dry, ash-free dry and ash weights at different salinities, with these weights increasing as the ambient salinity increases. These trends are attributable to differences in the quantity ofboth bound water (i.e. 'water of hydration') and ash content, both ofwhich vary with the size of medusae. Dry, ash-free dry and ash weights change rapidly as the salinity of an individual's environment alters, and these changes are associated with changes in the individual's buoyancy. Unless salinity effects are appropriately considered, significant errors may arise in the quantification of the biomass, production,and other weight-dependent measurements of A. aurita. Similar errors arise in other gelatinous organisms, and studies of such groups must make allowances for these effects.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 17:38:16