Titre :
|
The relationship between otolith growth, structure and composition in temperature marine fish species
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Auteurs :
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J. Tomas
|
Type de document :
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thèse/mémoire
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Année de publication :
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2000
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Format :
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294 p.
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Langues:
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= Anglais
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Catégories :
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BIOLOGIE-CHIMIE-PHYSIOLOGIE
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Mots-clés:
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POISSON
;
EAU DE MER
;
EAU MARINE
;
OTOLITHE
;
CROISSANCE ANIMALE
;
METHODOLOGIE
;
EXPERIMENTATION
;
GADUS MORHUA
;
MERLUCCIUS
;
TEMPERATURE
;
PLEURONECTES PLATESSA
;
CLUPEIDAE
|
Résumé :
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The composition of otoliths of several fish species was analysed to investigate the chemical factors explaining the formation of opaque and translucent bands, the occurrence of aberrant crystallisation (vaterite) and the importance of strontium (sr) in the metabolism of ca in otolith mineralisation. the results of this study suggest that sr/ca or (sr) peaks could indicate higher densities of crystals within the otolith that would explain the formation and appearance of translucent bands. in the light of the results of this study, a conceptual model of otolith growth is proposed. the overall conclusion of that study is that some of the mechanisms behind otolith growth can be revealed by the analysis of the composition of the otolith.
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Diplôme :
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Thesis submitted in accordance with the requirements of the University of Liverpool for the degree of doctor of philosophy
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