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Titolo:
Biostatistical implications of individual variability in growth in rainbowtrout and Atlantic salmon
Autore:
Gardeur, JN; Paspatis, M; Gelineau, A; Boujard, T;
Indirizzi:
INRA, IFREMER, Unite Mixte Nutr Poissons, Equipe Nutr Aquaculture Environm,Stn Hydrobiol, F-64310 St Pee Sur Nivelle, France INRA St Pee Sur Nivelle France F-64310 -64310 St Pee Sur Nivelle, France Inst Marine Biol Crete, GR-71003 Heraklion, Crete, Greece Inst Marine BiolCrete Heraklion Crete Greece GR-71003 ion, Crete, Greece
Titolo Testata:
AQUACULTURE
fascicolo: 1-2, volume: 195, anno: 2001,
pagine: 51 - 59
SICI:
0044-8486(20010402)195:1-2<51:BIOIVI>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
SALVELINUS-ALPINUS L; CROSS-OVER DESIGNS; ARCTIC CHARR; AQUACULTURE RESEARCH; STATISTICAL ASPECTS; FEEDING FREQUENCY; FOOD UTILIZATION; SIZE; DOMINANCE; HIERARCHY;
Keywords:
initial weight; specific growth rate, variability; correlation; experimental design; salmonids;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Gardeur, JN Musee Aquarium Nancy, UHP, INPL, Lab Sci Anim, 34 Rue Ste, F-54000 Nancy, France Musee Aquarium Nancy 34 Rue Ste Nancy France F-54000 , France
Citazione:
J.N. Gardeur et al., "Biostatistical implications of individual variability in growth in rainbowtrout and Atlantic salmon", AQUACULTURE, 195(1-2), 2001, pp. 51-59

Abstract

The relationship between specific growth rate and initial body weight in fish was analysed by multivariate analysis using data sets from growth studies on rainbow trout (initial weight between 10 and 30 g, n = 546) and Atlantic salmon (initial weight between 10 and 20 g, n = 355). We demonstrate that individuals can be pooled into different classes according to their growth characteristics. Classes with similar initial mean weight can have very different mean specific growth rate. Indeed, we found the mean specific growth rate ratio between classes with similar initial mean weight to be between 1.5 and 5.8 in rainbow trout and between 1.2 and 1.9 in Atlantic salmon. We conclude that the constitution of replicates with homogeneous initial weight is not assurance of homogeneous specific growth rate among replicates. The consequences of such variability in growth on experimental designs and power of analysis-of-variance models are discussed. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/07/20 alle ore 20:14:29