Sampling information on lysianassoid amphipod crustaceans from the expedition PS82 (ANT-XXIX/9) to the Filchner area, Weddell Sea, Antarctica in 2013/2014 ...

• Main Author: Havermans, Charlotte
• Format: Dataset
• Language: English
• Published: PANGAEA 2017
• Subjects: Event label; Latitude of event; Longitude of event; DATE/TIME; Device type; DEPTH, water; Species; Number of specimens; Rectangular midwater trawl; Bottom trawl; Agassiz Trawl; Trap, fish; Dredge, Rauschert; PS82; Polarstern; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158; Antarctic; Arctic; Ronne Ice Shelf; Southern Ocean; Weddell; Weddell Sea; Antarc*; Antarctica; Filchner Ronne Ice Shelf; Filchner-Ronne Ice Shelf; Ice Shelf; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.881161; https://doi.pangaea.de/10.1594/PANGAEA.881161

An integrative inventory, combining morphological identifications with DNA barcoding, of the amphipod scavenging fauna (Lysianassoidea) of the Filchner area in the south-eastern Weddell Sea is provided here. This understudied area, neighbouring the Filchner-Ronne Ice Shelf, represents a key oceanographic region for the global circulation but is, however, likely to be impacted by a myriad of consequences of warming waters. It also represents a biological hotspot and therefore, this area has been recently included as a candidate for a Marine Protected Area in the Southern Ocean (Weddell Sea MPA). Over 4400 lysianassoids were investigated for species richness and abundances at 20 different stations using different sampling devices, including the southernmost baited traps deployed so far (76°S). A high species richness was observed: 29 morphospecies of which five were new to science. Molecular species delimitation methods indicated the presence of 42 lineages; for four species, several (cryptic) lineages were ...