Table 1. Depth-specific spongivore densities and their diet on Carrie Bow Cay, Belize.

Spongivore	Density: 10–30 m (2×10 m)−1 N = 10	Density: 46 m (2×10 m)−1 N = 5	Dietary Breadth (% bites on sponges) [# sponge species eaten]	Bites (15 min)−1	Bites (individual)−1
CHAETODONTIDAE
Chaetodipterus jaber	0	2.6±1.6	na/31.4±4.5 [na/10.4±1.3]	0/10.2±3.1	0/4.2±0.9
MONOCANTHIDAE
Cantherhines macrocerus	0.2±0.1	0.6±0.4	66.7±3.6/77.2±3.7 [7.9±0.5/10.2±1.3]	21.3±2.7/18.6±2.9	1.6±0.3/5.0±1.0
POMACANTHIDAE
Holocanthus ciliarus	0.3±0.2	0.4±0.4	94.5±1.7/98.4±0.9 [24.7±1.0/35.2±2.7]	12.2±1.4/13.0±1.9	2.6±0.4/4.0±0.8
Holocanthus tricolor	0.6±0.3	0.4±0.2	92.8±1.5/97.0±1.5 [21.5±1.2/28.8±0.9]	17.8±1.2/19.0±2.1	1.6±0.2/10.2±1.5
Pomacanthus arcuatus	0.5±0.3	0.4±0.4	70.7±2.5/74.8±2.7 [21.2±1.3/28.8±0.9]	12.4±0.9/14.2±1.9	1.2±0.1/6.0±0.7
Pomacanthus paru	0.4±0.2	0.2±0.2	76.5±2.5/73.4±2.9 [19.7±0.7/30.4±1.4]	14.9±0.8/14.8±2.2	1.2±0.1/6.2±1.2
TETRODONTIDAE
Canthigaster rostrata	4.8±1.5	4.4±1.8	20.3±2.4/45.4±2.1 [11.2±0.8/28.0±0.7]	47.9±12.1/48.8±9.1	1.9±0.3/12.8±2.9

Notes: Data presented are the mean number of fish ± SE per 2×10 m band transects (n = 5 replicates at each of three depths: 10 m, 30 m and 46 m). Percent of bites on sponges for each fish species are based on 15 min bite count observations of five fish on the shallow- and deep- reefs (na  =  not applicable: no fish observed at depth); the number of sponge species sampled during that period are included in parentheses. The average number of bites per 15 min observation period, and the average number of focal bites on individual sponges are recorded. In all cases where numbers are separated by a hash (“/”), the first number refers to the shallow depths and the second number refers to the deep depth.