Table 2 Frequency of occurrence (%F), abundance (%N), weight (%W) and Index of Relative Importance (%IRI) percentages for prey organisms in the diet of Scorpaena notata, S. porcus and Chelidonichthys lucerna caught in central Adriatic Sea
From: Trophic relationships among scorpaeniform fishes associated with gas platforms
| Â | %F | %N | %W | %IRI | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
S. notata | S. porcus | C. lucerna | S. notata | S. porcus | C. lucerna | S. notata | S. porcus | C. lucerna | S. notata | S. porcus | C. lucerna | |
Alpheus glaber | 4.8 | 14.5 | 2.9 | 2.9 | 12.2 | 1.6 | 6.0 | 7.5 | 1.1 | 0.4 | 2.2 | 0.1 |
Crangon crangon | 4.8 | – | 0.6 | 2.9 | – | 0.6 | 0.6 | – | <0.1 | 0.2 | – | <0.1 |
Philocheras bispinosus | 9.5 | 1.8 | 3.2 | 11.8 | 1.2 | 5.5 | 0.3 | <0.1 | 0.1 | 1.2 | <0.1 | 0.1 |
Crangonidae | 4.8 | – | 1.3 | 2.9 | – | 1.0 | 0.3 | – | <0.1 | 0.2 | – | <0.1 |
Processa macrophtalma | 9.5 | – | 2.6 | 5.9 | – | 2.6 | 1.1 | – | 0.2 | 0.7 | – | 0.1 |
Processa edulis | – | – | 1.3 | – | – | 0.5 | – | – | <0.1 | – | – | <0.1 |
Processa sp. | 4.8 | – | 2.6 | 2.9 | – | 1.0 | <0.1 | – | 0.3 | 0.1 | – | <0.1 |
Goneplax rhomboides | 71.4 | 81.8 | 87.8 | 44.1 | 69.5 | 64.1 | 85.7 | 84.1 | 78.0 | 95.2 | 97.1 | 98.6 |
Liocarcinus depurator | 4.8 | 1.8 | 1.6 | 2.9 | 1.2 | 0.6 | 0.1 | 0.9 | 0.6 | 0.1 | <0.1 | <0.1 |
Liocarcinus sp. (juv) | – | – | 0.3 | – | – | 0.1 | – | – | <0.1 | – | – | <0.1 |
Pilumnus hirtellus | – | 3.6 | – | – | 3.7 | – | – | 3.3 | – | – | 0.2 | – |
Ilia nucleus | – | – | 0.3 | – | – | 0.1 | – | – | 0.1 | – | – | <0.1 |
Jaxea nocturna | 9.5 | 1.8 | – | 5.9 | 1.2 | – | 3.1 | 0.1 | – | 0.9 | <0.1 | – |
Callianassa sp. | 4.8 | – | 0.3 | 2.9 | – | 0.1 | 0.3 | – | 0.1 | 0.2 | – | <0.1 |
Anapagurus petiti | – | – | 0.3 | – | – | 0.1 | – | – | <0.1 | – | – | <0.1 |
Decapoda | – | – | 1.6 | – | – | 0.6 | – | – | 0.2 | – | – | <0.1 |
Cymothoidae | – | – | 0.3 | – | – | 0.1 | – | – | <0.1 | – | – | <0.1 |
Apseudes spinosus | – | – | 0.3 | – | – | 0.1 | – | – | <0.1 | – | – | <0.1 |
Apseudes latreillei | – | – | 3.2 | – | – | 1.8 | – | – | 1.3 | – | – | 0.1 |
Apseudidae | 4.8 | – | 2.3 | 2.9 | – | 0.9 | <0.1 | – | <0.1 | 0.1 | – | <0.1 |
Gammaridea | 4.8 | – | 0.6 | 2.9 | – | 0.3 | 0.1 | – | <0.1 | 0.1 | – | <0.1 |
Ostracoda | – | – | 0.6 | – | – | 0.3 | – | – | <0.1 | – | – | <0.1 |
unidentified Crustacea | 4.8 | – | 1.3 | 2.9 | – | 0.5 | 0.2 | – | 0.1 | 0.2 | – | <0.1 |
Total Crustacea | 95.2 | 94.5 | 92.9 | 94.1 | 89.0 | 82.7 | 97.7 | 95.9 | 82.1 | 99.6 | 99.6 | 95.2 |
Cephalopoda | – | – | 0.6 | – | – | 0.3 | – | – | 0.2 | – | – | <0.1 |
Corbula gibba | – | 3.6 | 1.0 | – | 2.4 | 0.4 | – | 0.1 | <0.1 | – | 0.1 | <0.1 |
Spisula subtruncata | – | – | 0.3 | – | – | 0.1 | – | – | <0.1 | – | – | <0.1 |
Pectinidae juv | – | – | 0.3 | – | – | 0.1 | – | – | <0.1 | – | – | <0.1 |
Veneridae | – | – | 0.3 | – | – | 0.1 | – | – | <0.1 | – | – | <0.1 |
Tellina sp. | – | – | 0.3 | – | – | 0.1 | – | – | <0.1 | – | – | <0.1 |
Bivalvia | – | – | 1.3 | – | – | 0.5 | – | – | <0.1 | – | – | <0.1 |
Fustiara rubescens | – | – | 0.3 | – | – | 0.1 | – | – | <0.1 | – | – | <0.1 |
Turritella communis | – | – | 1.3 | – | – | 0.5 | – | – | 0.2 | – | – | <0.1 |
Nassarius sp. | – | – | 1.0 | – | – | 0.4 | – | – | 1.2 | – | – | <0.1 |
Pleurotomidae | – | – | 0.3 | – | – | 0.3 | – | – | <0.1 | – | – | <0.1 |
Total Mollusca | – | 3.6 | 6.4 | – | 2.4 | 2.9 | – | 0.1 | 1.7 | <0.1 | 0.1 | 0.2 |
Lesueurigobius friesii | – | – | 2.9 | – | – | 1.8 | – | – | 2.7 | – | – | 0.1 |
Lesueurigobius suerii | – | – | 1.9 | – | – | 1.5 | – | – | 1.6 | – | – | <0.1 |
Lesueurigobius sp. juv | 4.8 | – | 1.0 | 2.9 | – | 0.4 | 2.2 | – | 0.3 | 0.3 | – | <0.1 |
Deltentosteus quadrimaculatus | – | – | 3.2 | – | – | 1.5 | – | – | 0.9 | – | – | 0.1 |
Gobius niger | – | – | 0.3 | – | – | 0.1 | – | – | 0.4 | – | – | <0.1 |
Gobius geniporus | – | – | 0.3 | – | – | 0.1 | – | – | 0.3 | – | – | <0.1 |
Gobius cruentatus | – | – | 0.3 | – | – | 0.1 | – | – | 0.2 | – | – | <0.1 |
Gobiidae (juv) | – | – | 4.5 | – | – | 2.5 | – | – | 1.1 | – | – | 0.1 |
Triglidae | – | – | 0.3 | – | – | 0.1 | – | – | 0.6 | – | – | <0.1 |
Callionymus pusillus | – | – | 0.3 | – | – | 0.1 | – | – | 0.1 | – | – | <0.1 |
Callionymus sp. | – | – | 0.6 | – | – | 0.3 | – | – | 0.4 | – | – | <0.1 |
Cepola macrophthalma | – | – | 1.0 | – | – | 0.4 | – | – | 0.2 | – | – | <0.1 |
Arnoglossus sp. | – | – | 1.0 | – | – | 0.4 | – | – | 2.0 | – | – | <0.1 |
Engraulis encrasicolus | – | 3.6 | 0.6 | – | 7.3 | 0.3 | – | 3.9 | 0.1 | – | 0.3 | <0.1 |
Sardina pilchardus | – | – | 0.3 | – | – | 0.1 | – | – | 1.2 | – | – | <0.1 |
Clupeidae | – | – | 0.3 | – | – | 0.1 | – | – | 0.9 | – | – | <0.1 |
Unidentified Teleostei | 4.8 | 1.8 | 9.3 | 2.9 | 1.2 | 4.4 | 0.1 | 0.1 | 3.1 | 0.1 | 0.0 | 0.6 |
Total Teleostei | 9.5 | 5.5 | 24.8 | 5.9 | 8.5 | 14.2 | 2.3 | 4.0 | 16.1 | 0.4 | 0.4 | 4.7 |
Salpidae | – | – | 0.3 | – | – | 0.1 | – | – | <0.1 | – | – | <0.1 |
Sipuncula | – | – | 0.3 | – | – | 0.1 | – | – | <0.1 | – | – | <0.1 |