Title The effects of temperature and salinity on vital biological functions of the Antarctic crustacean Serolis polita
Author Janecki, T.; Kidawa, A.; Potocka, M.
Author Affil Janecki, T., Polish Academy of Sciences, Department of Antarctic Biology, Warsaw, Poland
Source Polar Biology, 33(8), p.1013-1020. Publisher: Springer-Verlag, Berlin, Germany. ISSN: 0722-4060
Publication Date Aug. 2010
Notes In English. 61 refs. GeoRef Acc. No: 309120
Index Terms Antarctica--Admiralty Bay; Antarctica-- King George Island; Southern Ocean; Admiralty Bay; Antarctica; Arthropoda; biology; Crustacea; ecology; habitat; Invertebrata; King George Island; Mandibulata; marine sediments; salinity; Scotia Sea Islands; sediments; South Shetland Islands; temperature
Abstract Effects of temperature rise (from 0 to +5C) and salinity decline (from 34 to 30 psu) on vital biological functions of the Antarctic isopod Serolis polita were studied in laboratory experiments. Behavioural reactions to food odour, as well as righting responses and reburying in the sediments, were measured. Both temperature increase and salinity decline impaired the ability of S. polita to perform these biological functions critical for their long-term survival, by lowering the number of isopods able to right and rebury in the sediment, increasing time- to-right, reducing locomotory activity and weakening isopod reaction to food odour. Significant interactive effects between temperature and salinity on time-to-right and time spent swimming were observed, with isopods being more vulnerable to lower salinities when exposed to higher temperatures. Some biological functions (righting, reburying) were more sensitive to temperature and salinity changes than others (swimming). In conclusion, our findings strongly suggest that Antarctic isopods are vulnerable to environmental changes, and their ability to cope with them is limited.
URL http://hdl.handle.net/10.1007/s00300-010-0779-y
Publication Type journal article
Record ID 91194