POTENTIAL EFFECT OF ICE FORMATION ON ANTARCTIC PELAGIC COPEPODS - SALINITY INDUCED MORTALITY OF CALANUS-PROPINQUUS AND METRIDIA-GERLACHEI IN COMPARISON TO SYMPAGIC ACOEL TURBELLARIANS

Authors
GRADINGER R SCHNACKSCHIEL SB
Citation
R. Gradinger et Sb. Schnackschiel, POTENTIAL EFFECT OF ICE FORMATION ON ANTARCTIC PELAGIC COPEPODS - SALINITY INDUCED MORTALITY OF CALANUS-PROPINQUUS AND METRIDIA-GERLACHEI IN COMPARISON TO SYMPAGIC ACOEL TURBELLARIANS, Polar biology, 20(2), 1998, pp. 139-142
Citations number
30
Categorie Soggetti
Biology Miscellaneous",Ecology,Biology
Journal title
Polar biology → ACNP
ISSN journal
07224060
Volume
20
Issue
2
Year of publication
1998
Pages
139 - 142
Database
ISI
SICI code
0722-4060(1998)20:2<139:PEOIFO>2.0.ZU;2-J
Abstract
The salinity tolerance of two dominant Antarctic planktic copepods (Ca lanus propinquus and Metridia gerlachei) was tested over a range from 34 to 85 PSU and compared with that of sympagic turbellarians. The cop epods survived only at a salinity of 34, higher salinities causing dea th within days. The turbellarians survived at salinities up to 75. The data imply that C. propinquus and M. gerlachei will not survive incor poration into newly forming sea ice because of the increasing brine sa linity in new ice.