Branchiopod and Malacostracan Crustaceans 
19 
Table 4. Percentages by months of all amphipod specimens from Santee 
National Wildlife Refuge, S.C., represented by each of the three 
species collected: Hyalella azteca, Crangonyx r. richmondensis, and 
Crangonyx serratus. 
Hyalella 
azteca 
Crangonyx r. 
richmondensis 
Crangonyx 
serratus 
Total 
Jan 82 
23.9 
67.6 
8.4 
71 
Mar 82 
95.3 
4.7 
0.0 
277 
May 82 
' 94.3 
5.7 
0.0 
263 
Jun 82 
99.0 
1.0 
0.0 
102 
Jul 82 
100.0 
0.0 
0.0 
359 
Aug 82 
98.1 
1.9 
0.0 
106 
Sep 82 
99.2 
0.8 
0.0 
130 
Dec 82 
74.5 
23.5 
2.0 
349 
Jan 83 
52.8 
46.5 
0.6 
159 
Jun 83 
94.7 
5.2 
0.0 
1635 
Aug 83 
98.0 
2.0 
0.0 
540 
Nov 83 
87.4 
12.6 
0.0 
546 
Table 5. Percentages by months of stations at Santee National Wildlife Refuge, 
S.C., where amphipod species were collected. Stations included are all 
those at which amphipods were found at least once during the study. 
Data from 1982 and 1983 have been combined. 
Hyalella 
Crangonyx r. 
Crangonyx 
Stations 
azteca 
richmondensis 
serratus 
Sampled 
Jan 
57.9 
63.2 
5.3 
19 
Mar 
83.3 
16.7 
0.0 
6 
May 
80.0 
30.0 
0.0 
10 
Jun 
87.3 
35.2 
0.0 
71 
Jul 
77.8 
0.0 
0.0 
36 
Aug 
69.7 
9.1 
0.0 
66 
Sep 
62.5 
12.5 
0.0 
8 
Nov 
73.3 
35.6 
0.0 
45 
Dec 
71.4 
66.7 
9.5 
21 
