250 
Fishery Bulletin 117(3) 
Table 2 
Diet composition, by sex (with size classes and maturity stages combined), for sicklefin smoothhounds ( Mustelus lunulatus) caught 
in the southeastern Pacific Ocean during November 2003-October 2004. Values provided for prey include percent prey-specific 
abundance (percent number of samples for specific prey [%PN]), percent prey-specific weight (percent weight of specific prey 
[%PW]), percent frequency of occurrence (%FO), and prey-specific index of relative importance (PSIRI). A dash indicates that data 
were not available because the prey species was not consumed by both sexes. 
%PN %PW %FO PSIRI (%) 
Prey Females Males Females Males Females Males Females Males 
ARTHROPODA 
Guyanacaris caespitosa 
Acanthocarpus delsolari 
Calappula saussurei 
Cycloes bardii 
Ethusa spp. 
Diogenidae 
Euphylax robustus 
Penaeidae 
Goneplax spp. 
Hemisquilla spp. 
Hepatus kossmanni 
Iliacantha spp. 
Mesorhoea belli 
Munida hispida 
Munida refulgens 
Panopeus spp. 
Parasquilla similis 
Parthenope spp. 
Pilumnus fernandezi 
Platymera gaudichaudii 
Plesionika mexicana 
Achelous iridescens 
Portunus asper 
Ranilia spp. 
Squilla biformis 
Squilla hancocki 
Squilla panamensis 
Squilla spp. 
Solenocera agassizi 
Solenocera spp. 
Sicyonia disdorsalis 
Sicyonia picta 
Rimapenaeus pacificus 
Trizocarcinus dentatus 
Crustacean remains 
OSTEICHTHYES 
Anchoa spp. 
Auxis spp. 
Bollmannia chlamydes 
Citharichthys gilberti 
Citharichthys platophrys 
Paralichthyidae 
Unidentified fish 
Pleuronectiformes 
Symphurus spp. 
Fish remains 
MOLLUSCA 
Gastropoda 
Lolliguncula (Loliolopsis) diomedeae 
Squid remains 
Unidentified organic material 
89.12 
92.39 
90.21 
93.04 
33.33 
- 
53.54 
- 
62.50 
64.88 
60.69 
63.62 
35.57 
37.22 
31.00 
31.94 
50.00 
- 
67.90 
- 
26.22 
47.22 
21.19 
51.23 
- 
20.00 
- 
8.88 
39.09 
10.00 
54.46 
12.61 
6.67 
- 
0.48 
- 
24.64 
33.33 
29.94 
34.23 
25.00 
- 
1.53 
- 
25.00 
- 
30.35 
- 
40.19 
41.83 
40.66 
40.03 
27.64 
41.67 
12.47 
32.11 
- 
33.33 
- 
22.17 
22.50 
43.19 
22.32 
40.95 
30.00 
25.00 
28.57 
7.18 
12.50 
- 
6.63 
- 
26.06 
23.33 
24.55 
10.89 
25.00 
62.04 
15.34 
69.34 
55.00 
77.78 
55.61 
78.39 
- 
50.00 
- 
17.77 
58.25 
62.44 
54.97 
61.87 
83.33 
- 
90.99 
- 
31.63 
40.00 
24.88 
42.92 
- 
48.33 
- 
48.01 
18.33 
37.50 
3.19 
29.12 
43.43 
36.67 
46.63 
30.80 
32.61 
53.33 
26.67 
44.06 
14.29 
31.11 
12.95 
45.94 
37.50 
14.29 
19.21 
3.56 
16.67 
- 
11.24 
- 
31.25 
- 
23.25 
- 
16.67 
- 
3.29 
- 
22.22 
- 
15.74 
- 
45.24 
52.41 
53.87 
61.31 
41.44 
38.05 
34.70 
38.88 
77.78 
- 
43.02 
- 
41.67 
39.83 
49.10 
44.12 
- 
50.00 
- 
82.23 
50.00 
- 
25.33 
- 
25.00 
- 
10.29 
- 
- 
9.09 
- 
5.21 
58.33 
50.00 
52.47 
46.26 
37.50 
- 
52.07 
- 
22.92 
- 
6.99 
- 
39.89 
37.73 
34.64 
35.27 
43.92 
44.65 
43.85 
33.66 
16.67 
35.00 
4.81 
7.34 
45.94 
43.33 
42.94 
33.46 
41.39 
53.70 
53.54 
51.60 
16.67 
22.22 
6.56 
31.64 
96.90 
97.70 
86.94 
90.64 
0.60 
- 
0.26 
- 
3.60 
10.40 
2.24 
6.71 
10.90 
17.90 
3.63 
6.19 
0.60 
- 
0.36 
- 
7.90 
5.90 
1.87 
2.94 
- 
0.70 
- 
0.11 
9.10 
0.70 
4.25 
0.08 
0.60 
- 
0.02 
- 
2.40 
0.70 
0.66 
0.25 
0.60 
- 
0.08 
- 
0.60 
- 
0.17 
- 
13.30 
17.90 
5.39 
7.33 
3.60 
1.50 
0.73 
0.55 
- 
0.70 
- 
0.21 
1.20 
4.50 
0.27 
1.88 
6.10 
0.70 
1.77 
0.12 
0.60 
- 
0.06 
- 
4.20 
2.20 
1.07 
0.38 
1.80 
2.20 
0.37 
1.47 
2.40 
2.20 
1.34 
1.75 
- 
0.70 
- 
0.25 
50.30 
50.00 
28.48 
31.08 
1.80 
- 
1.58 
- 
2.40 
3.70 
0.68 
1.55 
- 
3.70 
- 
1.79 
1.20 
1.50 
0.13 
0.49 
14.50 
4.50 
6.55 
1.51 
9.70 
4.50 
2.87 
2.18 
0.60 
2.20 
0.08 
0.86 
0.60 
0.70 
0.17 
0.14 
0.60 
- 
0.08 
- 
1.20 
- 
0.33 
- 
0.60 
- 
0.06 
- 
1.80 
- 
0.35 
- 
42.40 
36.50 
21.02 
20.79 
14.50 
14.90 
5.54 
5.74 
0.60 
- 
0.37 
- 
1.20 
3.70 
0.55 
1.57 
- 
0.70 
- 
0.49 
0.60 
- 
0.23 
- 
0.60 
- 
0.11 
- 
- 
0.70 
- 
0.05 
1.20 
0.70 
0.67 
0.36 
0.60 
- 
0.27 
- 
1.20 
- 
0.18 
- 
8.40 
8.90 
3.16 
3.27 
16.90 
8.20 
7.45 
3.21 
0.60 
1.50 
0.07 
0.32 
12.70 
4.40 
5.66 
1.72 
3.60 
2.20 
1.73 
1.18 
0.60 
1.50 
0.07 
0.40 
