Influence of seasonal ice formation on life cycle strategies of Antarctic copepods ...

• Main Author: Swadling, KM
• Format: Thesis
• Language: unknown
• Published: University Of Tasmania 2023
• Subjects: Antarctic; East Antarctica; Vestfold; Vestfold Hills; Antarc*; Antarctica; Sea ice; Copepods
• Online Access: https://dx.doi.org/10.25959/23243195; https://figshare.utas.edu.au/articles/thesis/Influence_of_seasonal_ice_formation_on_life_cycle_strategies_of_Antarctic_copepods/23243195

Zooplankton from inshore marine and marine-derived lacustrine Antarctic habitats were studied over two summers and the intervening winter from December 1993 to March 1995 at two sites in the Vestfold Hills region, East Antarctica. Particular emphasis was placed on the interaction between fast ice and the underlying water column, and the effect of this on the ecology of dominant copepod species. The overwintering strategies of commonly found copepods were investigated. The sea ice habitat was characterised by high abundance and low diversity of metazoans. Paralabidocera antarctica dominated the metazoan assemblage, reaching densities of up to 500,000 individuals `m^(-2)`.Other taxa present included Drescheriella glacialis, unidentified harpacticoids, Stephos longipes and Ctenocalanus citer. Horizontal patchiness of the sympagic biota varied as much on scales of less than one metre as it did at scales of several kilometres. Metazoan density was not clearly correlated with chlorophyll concentration, salinity or ...