Crabtree et al.: Feeding habits of Albu la vulpes 
759 
There was a significant positive correlation between 
prey size and bonefish length for xanthid crabs (n=286, 
r=0.262, PcO.OOl) and portunid crabs (rc=58, r=0.465, 
P<0.001), but not for alpheid shrimp (P^O.630), penaeid 
shrimp (P=0.063), or O. beta (P=0.782). The largest prey 
consumed were O. beta (largest 113 mm SL), the 
portunid crab Callinectes sapidus (largest 106 mm cara- 
pace width), and penaeid shrimp (largest 100 mm TL; 
Fig. 3). Most of these relatively large animals were con- 
sumed only as juveniles by bonefish. 
The stomach contents of bonefish caught in Florida 
Bay were significantly different from those of bone- 
fish caught on the ocean side of the Keys ( ANOSIM, 
P=0.034; P=0.013). The statistic R can range from 
-1 to 1 with a value of 1 indicating that all replicates 
within a sample are more similar to each other than 
to any replicates from the other samples and with a 
value of 0 indicating that the similarities between 
and within samples are on average equal (Clarke and 
Warwick, 1994). Although the R value of 0.034 was 
Table 2 (continued) 
Taxon and 
prey item 
W 
F 
N 
Taxon and 
prey item 
W 
F 
N 
Total Decapoda 
67.8 
88.6 
42.1 
Echinodermata 
Unidentified Dendrobranchiata 
0.2 
8.3 
0.9 
Ophiuroidea 
0.5 
1.8 
1.0 
Penaeidae 
Holothuroidea 
0.5 
2.9 
0.2 
Unidentified Penaeidae 
0.9 
4.9 
1.2 
Ascidiacea 
<0.1 
0.3 
<0.1 
Penaeus spp. 
3.8 
17.9 
2.9 
Chordata 
Penaeus duorarum 
3.0 
5.5 
1.1 
Total Teleostei 
20.5 
44.9 
4.9 
Palaemonidae 
Unidentified teleostei 
0.5 
10.1 
0.6 
Unidentified Palaemonidae 
<0.1 
8.6 
1.1 
Ophicthidae 
Brachycarpus biunguiculatus 
<0.1 
0.8 
<0.1 
Unidentified Ophicthidae 
0.2 
1.3 
0.1 
Alpheidae 
Ahlia egmontis 
0.7 
2.9 
0.2 
Unidentified Alpheidae 
0.9 
9.4 
1.8 
Myrophis punctatus 
0.7 
2.6 
0.1 
Alpheus floridanus 
<0.1 
1.0 
<0.1 
Engraulidae 
Alpheus normanni 
7.6 
35.3 
13.2 
Unidentified Engraulidae 
<0.1 
0.3 
<0.1 
Alpheus spp. 
0.6 
6.8 
0.9 
Anchoa sp. 
<0.1 
0.3 
<0.1 
Hippolytidae 
Batrachoididae 
Unidentified Hippolytidae 
0.1 
4.7 
1.2 
Opsanus beta 
17.2 
29.1 
3.1 
Thor spp. 
0.3 
19.7 
5.6 
Bythitidae 
Tozeuma spp. 
<0.1 
0.5 
<0.1 
Ogilbia cayorum 
<0.1 
0.8 
<0.1 
Palinuridae 
Cyprinodontidae 
Panulirus argus 
0.6 
0.5 
<0.1 
Floridichthys carpio 
<0.1 
0.3 
<0.1 
Unidentified Brachyura 
3.8 
17.7 
1.0 
Lucania parva 
<0.1 
1.0 
<0.1 
Majidae 
Syngnathidae 
Unidentified Majidae 
3.0 
6.2 
0.6 
Unidentified Syngnathidae 
<0.1 
1.6 
<0.1 
Pitho mirabilis 
0.2 
0.3 
<0.1 
Hippocampus zosterae 
<0.1 
0.3 
<0.1 
Pitho spp. 
0.7 
2.3 
0.2 
Hippocampus sp. 
<0.1 
0.3 
<0.1 
Portunidae 
Syngnathus floridae 
<0.1 
0.5 
<0.1 
Unidentified Portunidae 
2.9 
8.1 
0.6 
Syngnathus scovelli 
<0.1 
0.3 
<0.1 
Callinectes ornatus 
1.3 
1.0 
0.2 
Syngnathus spp. 
0.1 
1.6 
0.1 
Callinectes sapidus 
2.5 
1.8 
0.2 
Lutjanidae 
Callinectes spp. 
3.1 
7.0 
0.5 
Lutjanus griseus 
0.1 
0.3 
<0.1 
Portunus spp. 
1.1 
1.0 
0.5 
Scaridae 
0.2 
0.8 
<0.11 
Xanthidae 
Gobiidae 
Unidentified Xanthidae 
29.9 
49.6 
8.2 
Unidentified Gobiidae 
<0.1 
1.3 
<0.1 
Neopanope sp. 
<0.1 
0.3 
<0.1 
Gobiosoma robustum 
<0.1 
0.3 
<0.1 
Panopeus spp. 
0.1 
0.8 
0.1 
Balistidae 
Grapsidae 
Monacanthus ciliatus 
<0.1 
0.3 
<0.1 
Unidentified Grapsidae 
<0.1 
1.0 
0.1 
Monacanthus hispidus 
0.2 
0.8 
<0.1 
Sesarma sp. 
<0.1 
0.3 
<0.1 
Ostraciidae 
Palicidae 
Lactophrys sp. 
0.1 
0.3 
<0.1 
Unidentified Palicidae 
<0.1 
0.3 
<0.1 
Miscellaneous material 
— 
28.1 
— 
Mysidae 
<0.1 
0.5 
<0.1 
Nonfood material 
Tanaidacea 
<0.1 
2.9 
4.0 
sandy debris 
— 
1.8 
— 
Isopoda 
<0.1 
0.3 
<0.1 
coral rock 
— 
0.3 
— 
