The Autecology of Eudiaptomus cf drieschi (Poppe & Mrazek 1895 ...

2.4.5 Salinity tolerance
Salinity tolerances were measured using varying concentrations of an artificial saline
solution for Kinneret water, “Salina” (A. Nishri, pers comm):
NaCl
KCl
MgCl 2 6H 2 0
CaCl 2
Na 2 S0 4
8700 mg / l FLW
350 mg / l FLW
7000 mg / l FLW
147 mg / l FLW
77 mg /l FLW
Table 4: Artificial saline solution (“Salina”) used in salinity tolerance experiments.
The following concentrations were used in the experiments: High - 400 mg Cl - / l,
Medium - 280 mg Cl - / l, Lake - 225 mg Cl - /l, and Low - 100 mg Cl - / l. Experimental
concentrations were obtained using “Salina” with filtered Lake Kinneret water (FLW
0.2µm). The low concentrations were obtained by diluting filtered lake water (FLW)
with filtered water from the upper Jordan River (20 mg Cl - / l).
Adult animals (5 females, 2 males) were each placed in 32, 50 ml Erlenmeyer flasks
with 25 ml experimental solution. Half of the flasks were placed in a temperature / light
controlled incubator at 18 0 C, with dim light conditions and the remaining half were at
12 0 C. Flasks were examined regularly until over 50% mortality was reached.