522 
Fishery Bulletin 115(4) 
Table 3 
Number of eggs of Argentine anchoita (Engraulis anchoita) sampled (N), frequency of occurrence (FO), and mean and stan¬ 
dard deviation (SD) values of abundance, egg volume, egg major axis, and egg minor axis, obtained during summer and 
winter of 2001 and 2002 in the northern area of the Southeastern Brasilian Bight. Results are given from analysis of vari¬ 
ance (ANOVA) and a posteriori Tukey’s honestly significant difference (HSD) test which compared egg-size values from the 
summer and winter of 2001 and 2002. S01=summer 2001; W01=winter 2001; S02=summer 2002; W02=winter 2002. 
Period 
ANOVA 
Tukey’s HSD (P) 
Summer 2001 Winter 2001 Summer 2002 Winter 2002 
SOI vs. W01 S02 vs. W02 
N 
FO (%) 
Abundance (eggs/m 2 ) 
Volume (mm 3 ) 
Major axis (mm) 
Minor axis (mm) 
99 
4.27 
.9 (9.3) 
56 
26.96 
0.7 (1.5) 
9904 
27.78 
32.8 (148.8) 
430 
18.18 
..4 (5.5) 
0.142(0.015) 0.206(0.018) 0.177(0.020) 0.206(0.021) 
1.031 (0.047) 1.138(0.047) 1.106(0.053) 1.140(0.052) 
0.512(0.026) 0.587(0.022) 0.552(0.023) 0.587(0.025) 
415.4 
133.2 
429.8 
< 0.01 
< 0.01 
< 0.01 
0.000 
0.000 
0.000 
0.000 
0.000 
0.000 
CHL: Feb/2001 
55°W 50°W 45°W 40°W 
[Iog 10 cht] 
CHL: Jul/2001 f!og 10 ch i] 
55°W 50°W 45°W 40°W 
24°S 
28°S 
32°S 
36°S 
CHL: Jan/2002 
24°S 
28°S 
32°S 
36°S 
CHL: Aug/2002 
Figure 3 
Horizontal distribution of the loglO-transformed surface chlorophyll-a con¬ 
centration (CHL, mg/m 3 ), determined from satellite data, during the winter 
(February or January) and summer (July or August) of 2001 and 2002 in 
the southwestern Atlantic Ocean off Brazil. The black line highlights the 
northern part of the southeastern Brazilian Bight that was the study area 
in 2002. 
The highest values of the surface CHL were observed 
close to the estuary of the Plata River (around 36°S) in 
summer. During the winter of both years the high CHL 
spread from the Plata River to the southernmost region 
of the SBB, reaching latitudes of about 28°S (Fig. 3). 
Further information about water column stratifica¬ 
tion, water mass intrusions, and horizontal distribu¬ 
tion of the SST for the same area and period studied 
was described by Goyalo et al. (2011) and Nairn id et 
al. (2017). 
