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Comparative anatomy of pectoral girdle and pectoral fin in Russian sturgeon and American paddlefish.
Folia Morphol (Warsz) 2016; 75(2):173-178FM

Abstract

Acipenseriformes occupy an important place in the evolutionary history. Skeleton of their pectoral fins has elements related to teleosts, but also to tetrapods. This article summarises and compares anatomical structure of the pectoral girdle and pectoral fin of Russian sturgeon (Acipenser gueldenstaedtii) and American paddlefish (Polyodon spathula). These species possess pectoral fins with some distinctive features in their structure. The pectoral girdles are composed of both cartilaginous and ossified elements. Unlike sturgeons, American paddlefish does not have an interclavicle and suprascapular cartilage. Moreover, its cleithrum doesn't form medially directed lamina. The quantity of the proximal radials in the investigated fish species are not the same. The dorsal and ventral muscles, which act on the pectoral fin of Russian sturgeon and American paddlefish, are not equally developed. In our opinion, this is caused by the differences in the mode of life, motility of fins, as well as by stabilisation of body during swimming.

Authors+Show Affiliations

No affiliation info availableDivision of Animal Anatomy, Department of Biostructure and Animal Physiology, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Wrocław, Poland. edyta.pasicka@yahoo.com.No affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

26503180

Citation

Grom, K, et al. "Comparative Anatomy of Pectoral Girdle and Pectoral Fin in Russian Sturgeon and American Paddlefish." Folia Morphologica, vol. 75, no. 2, 2016, pp. 173-178.
Grom K, Pasicka E, Tarnawski K. Comparative anatomy of pectoral girdle and pectoral fin in Russian sturgeon and American paddlefish. Folia Morphol (Warsz). 2016;75(2):173-178.
Grom, K., Pasicka, E., & Tarnawski, K. (2016). Comparative anatomy of pectoral girdle and pectoral fin in Russian sturgeon and American paddlefish. Folia Morphologica, 75(2), pp. 173-178. doi:10.5603/FM.a2015.0093.
Grom K, Pasicka E, Tarnawski K. Comparative Anatomy of Pectoral Girdle and Pectoral Fin in Russian Sturgeon and American Paddlefish. Folia Morphol (Warsz). 2016;75(2):173-178. PubMed PMID: 26503180.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparative anatomy of pectoral girdle and pectoral fin in Russian sturgeon and American paddlefish. AU - Grom,K, AU - Pasicka,E, AU - Tarnawski,K, Y1 - 2015/10/27/ PY - 2015/05/31/received PY - 2015/08/11/accepted PY - 2015/08/07/revised PY - 2015/10/28/pubmed PY - 2018/10/12/medline PY - 2015/10/28/entrez KW - acipenseriformes KW - evolution KW - fish KW - morphology KW - skeleton SP - 173 EP - 178 JF - Folia morphologica JO - Folia Morphol. (Warsz) VL - 75 IS - 2 N2 - Acipenseriformes occupy an important place in the evolutionary history. Skeleton of their pectoral fins has elements related to teleosts, but also to tetrapods. This article summarises and compares anatomical structure of the pectoral girdle and pectoral fin of Russian sturgeon (Acipenser gueldenstaedtii) and American paddlefish (Polyodon spathula). These species possess pectoral fins with some distinctive features in their structure. The pectoral girdles are composed of both cartilaginous and ossified elements. Unlike sturgeons, American paddlefish does not have an interclavicle and suprascapular cartilage. Moreover, its cleithrum doesn't form medially directed lamina. The quantity of the proximal radials in the investigated fish species are not the same. The dorsal and ventral muscles, which act on the pectoral fin of Russian sturgeon and American paddlefish, are not equally developed. In our opinion, this is caused by the differences in the mode of life, motility of fins, as well as by stabilisation of body during swimming. SN - 0015-5659 UR - https://www.unboundmedicine.com/medline/citation/26503180/Comparative_anatomy_of_pectoral_girdle_and_pectoral_fin_in_Russian_sturgeon_and_American_paddlefish_ L2 - https://journals.viamedica.pl/folia_morphologica/article/view/42184 DB - PRIME DP - Unbound Medicine ER -