Demineralization of the vertebral skeleton in Atlantic salmon Salmo salar L. during spawning migration

被引：55

作者：

Kacem, A

Gustafsson, S

Meunier, FJ

机构：

[1] Museum Natl Hist Nat, Ichtyol Gen & Appl Lab, FR CNRS 1451, F-75231 Paris 05, France

[2] Univ D Diderot, Anat Comparee Lab, UMR CNRS 8570, F-75251 Paris 05, France

来源：

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY | 2000年 / 125卷 / 04期

关键词：

spawning migration; demineralization; halastasy; osteoclasy; Salmo salar; vertebrae;

D O I：

10.1016/S1095-6433(00)00174-4

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

In Atlantic salmon, Salmo salar, the mineral rate of vertebrae in a given fish varies according to the position of the vertebra along the rachidian axis. Indeed, the mean rate goes from 49% in the anterior vertebrae and raises to 51% in post-truncal vertebrae. Although no significant difference in the mineral rate was noticed between males and females either in the lower river basin or after spawning, the mineral rate of vertebral bone decreased significantly (1-2%) during spawning migration. Vertebrae, like scales, are an important reservoir of calcium from which fasting salmon draws the minerals and organic materials necessary for the substantial remodeling of cranial bones in males and for sexual maturation. We hypothesize that mineral decrease in vertebrae may be the result of a halastasic demineralization of the vertebral tissues. (C) 2000 Elsevier Science Inc. All rights reserved.

引用

页码：479 / 484

页数：6