Fin spine bone resorption in atlantic bluefin tuna, Thunnus thynnus, and comparison between wild and captive-reared specimens

PloS One
Nicoletta SantamariaAldo Corriero

Abstract

Bone resorption in the first spine of the first dorsal fin of Atlantic bluefin tuna (ABFT) has long been considered for age estimation studies. In the present paper spine bone resorption was assessed in wild (aged 1 to 13 years) and captive-reared (aged 2 to 11 years) ABFT sampled from the Mediterranean Sea. Total surface (TS), solid surface (SS) and reabsorbed surface (RS) were measured in spine transverse sections in order to obtain proportions of SS and RS. The spine section surface was found to be isometrically correlated to the fish fork length by a power equation. The fraction of solid spine bone progressively decreased according to a logarithmic equation correlating SS/TS to both fish size and age. The values ranged from 57% in the smallest examined individuals to 37% in the largest specimens. This phenomenon was further enhanced in captive-reared ABFT where SS/TS was 22% in the largest measured specimen. The difference between the fraction of SS of wild and captive-reared ABFT was highly significant. In each year class from 1- to 7-year-old wild specimens, the fraction of spine reabsorbed surface was significantly higher in specimens collected from March to May than in those sampled during the rest of the year. In 4-yea...Continue Reading

References

Feb 1, 1973·Comparative Biochemistry and Physiology. A, Comparative Physiology·F G Carey, K D Lawson
Jan 1, 1969·Comparative Biochemistry and Physiology·F G Carey, J M Teal
Jun 7, 2000·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·A KacemF J Meunier
Nov 1, 2002·The Journal of Experimental Zoology·Miriam A Ashley-Ross
May 31, 1963·Annals of the New York Academy of Sciences·M L MOSS
Apr 29, 2005·Nature·Barbara A BlockThomas D Williams
Oct 4, 2008·Science·Jay R RookerJohn D Neilson
Apr 23, 2009·Biological Reviews of the Cambridge Philosophical Society·P Eckhard Witten, Ann Huysseune
May 16, 2009·General and Comparative Endocrinology·Geir Lasse TarangerTom Hansen
Jul 15, 2009·General and Comparative Endocrinology·Carl B Schreck
Jan 15, 2014·BoneKEy Reports·Ron Shahar, Mason N Dean

❮ Previous
Next ❯

Methods Mentioned

BETA
environmental stress

Software Mentioned

REPRODOTT
Quantiment
ABFT
ALLOTUNA
SELFDOTT

Related Concepts

Related Feeds

Apoptosis

Apoptosis is a specific process that leads to programmed cell death through the activation of an evolutionary conserved intracellular pathway leading to pathognomic cellular changes distinct from cellular necrosis