Tracking Non-Native Species in the Antarctic Marine Benthic Environment

Andrea de Oliveira Ribeiro Junqueira, Ana Carolina Fortes Bastos, Bruna Rachel Rocha
2012 INCT-APA Annual Activity Report  
Antarctica is not as isolated as once thought. Although persistent and invasive species have not been detected in the marine environment, some transient species have been. In the present study we investigate the biogeographical patterns of 529 benthic species of 5 target phyla recorded in the Admiralty Bay considering that it is an important tool for the identi cation of species origin. Most species of Admiralty Bay of the studied phyla are endemic to Sub Antarctica and Antarctica. e second
more » ... ctica. e second highest percentage was of species with continuous distribution. Chordata and Annelida presented the highest number of disjoint species. However most disjoint species predominate in Antarctica and Sub Antarctica indicating their origin in the Southern Ocean. Cosmopolitan patterns appear to be correlated to taxonomic misidenti cation or to the occurrence of cryptic species that are being revealed by molecular studies. Only a few disjoint species deserve further investigation.
doi:10.4322/apa.2014.082 fatcat:h7xns5shjfcqjbtrt3uybr7h6q