Anatomical differences among Atlantic and Mediterranean populations of Trisopterus luscus (Pisces)

Aquatic Biology

Nicolás Palanca-Castán¹  Luz Calia Miramontes-Sequeiros¹  Ndiaga Thiam¹  Antonio Palanca-Soler¹ 

关键词: Pouting;    Atlantic;    Mediterranean;    Skeleton;    Anatomy;   

DOI  :  10.3354/ab00193

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

ABSTRACT: The aim of this study was to see if a simple, low-cost anatomical method could be used to identify genetic differences among different populations of pouting Trisopterus luscus. We based our study on 8 anatomical units of the pouting skeleton in 170 specimens from 4 populations (3 Atlantic, 1 Mediterranean). Significant variations in the relative size of the respiratory anatomical structures and other cranial regions were present. These differences are thought to be a consequence of the different environmental conditions to which the fish are exposed. This is most noticeable along the Mediterranean coasts of the Alborán Sea, where pouting show a significant increase in the size of skeletal structures involved in respiration, whereas the Atlantic populations showed no interpopulation variation, suggesting the existence of a genetic barrier between the Mediterranean and Atlantic populations. Further research is needed to identify possible environmental factors involved.

【 授权许可】

Unknown