Sipuncula of the Magellan area compared with adjacent regions of Antarctica

• Published in: Scientia Marina
• Main Authors: J. I. Saiz-Salinas, S. Pagola-Carte
• Format: Article in Journal/Newspaper
• Language: English
• Published: Consejo Superior de Investigaciones Científicas 1999
• Subjects: sipuncula; zoogeography; magellan region; antarctic convergence; Aquaculture. Fisheries. Angling; SH1-691; Antarctic; The Antarctic; Antarc*; Antarctica
• Online Access: https://doi.org/10.3989/scimar.1999.63s1227; https://doaj.org/article/e53b2b1741ed41b39cebc8c733ad31ac

The Magellan sipunculan fauna includes 4 families, 7 genera and 16 species. A comparison between this fauna and that from adjacent regions of Antarctica has been made. A total of 8 species and 3 genera are shared by the compared areas. Univariate analyses show no significant statistical differences among the investigated faunas, whereas a multivariate analysis corroborates that the effects of the Antarctic Convergence are stronger at the level of genera than species. Only 3 genera were able to cross over this zoogeographical boundary. However, these 3 genera succeeded in the new biotopes of Antarctica, since a total of 16 species have been recorded, compared with the 8 species only found in the Magellan region.