Table S1. General Description of the Symbiotic Association Between Lysmata Pederseni And

Table S1. General description of the symbiotic association between Lysmata pederseni and the host tube sponge Callyspongia vaginalis at different localities in the Caribbean Sea. Shown are: the frequency of occurrence of shrimp on hosts (%), the total number of hosts sampled and shrimp collected per locality (Sn and Ss respectively), the density of shrimp (number of shrimps per host: mean [X] ± standard deviation [sd], and range) and the results of specific Chi-square test of goodness-of-fit (χ2 statistic and one-tailed P values) conducted to detect significant differences between the observed frequency of hosts harboring pairs of shrimps and that predicted by a random Poisson distribution. For all Chi-square tests, degrees of freedom = 1.

% / Sn / Ss / Density / Poisson
Locality / X ± sd / range / χ2 / P
Florida Keys, FL, USA / 12.61 / 111 / 26 / 0.24 ± 0.54 / 0 – 2 / 3.08 / 0.129
Carrie Bow Caye, BLZ / 29.03 / 124 / 81 / 0.72 ± 1.34 / 0 – 5 / 4.59 / 0.043
Kunayala, Panama / 10.00 / 110 / 18 / 0.16 ± 0.54 / 0 – 3 / 16.15 / 0.003