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Table 4 Abundance percentage (%N), estimated weight percentage (%eW) and frequency of occurrence (%F) of cephalopod prey (species and family) identified from the stomach contents of large pelagic predators caught in the central Mediterranean (SWO = Swordfish; BFT = Blue-fin tuna; ALB = Albacore; MSP = Mediterranean spearfish)

From: Pelagic cephalopods of the central Mediterranean Sea determined by the analysis of the stomach content of large fish predators

Superorder and order Prey types SWO BFT ALB MSP
%N %eW %F %N %eW %F %N %eW %F %N %eW %F
Octopodiformes
Octopoda Octopodidae 0.4 <0.1 2.4 5.1 3.3 24.0
 E. cirrhosa 0.1 <0.1 0.8 0.1 0.1 1.0
 P. tetracirrhus 0.3 <0.1 1.6 3.4 2.2 24.0
 S. unicirrhus 1.6 1.0 5.0
Argonautidae (A. argo) 1.4 0.1 7.3 3.1 0.6 18.2 1.0 1.1 10.0 19.3 6.1 2.0
Ocythoidae (O. tuberculata) 1.1 0.1 5.6 0.4 0.2 4.0
Tremoctopodidae (T. violaceus) 1.8 4.2 4.8 36.6 37.9 36.4 24.6 22.3 1.8
Decapodiformes
Oegopsida Brachioteuthidae (B. riisei) 0.6 <0.1 3.2
Chiroteuthidae (C. veranyi) 1.8 0.1 5.6 0.8 0.6 4.5
Cranchiidae (G. armata) 1.6 0.1 6.5
Ancistrocheiridae (A. lesueurii) 0.3 0.4 2.4 0.8 <0.1 4.5 0.4 0.2 7.0 7.0 30.3 0.8
Enoploteuthidae (A. veranyi) 0.4 <0.1 2.4
Histioteuthidae 3.1 1.2 15.3 3.1 2.6 13.6 0.1 3.2 1.0 19.3 10.9 1.5
 H. bonnellii 1.3 0.3 7.3 0.8 1.7 4.5 12.3 4.9 0.8
 H. reversa 1.8 0.9 8.9 2.3 0.9 9.1 0.1 3.2 1.0 7.0 6.0 1.0
Octopoteuthidae (O. cfr sicula) 0.1 0.8 0.8
Ocythoidae (O. tuberculata) 1.1 0.1 5.6 0.4 0.2 4.0
Ommastrephidae 43.9 49.7 79.8 27.5 17.1 63.6 13.5 32.2 48.0 28.1 26.2 2.0
 I. coindetii 10.0 8.3 37.9 3.1 1.7 13.6 1.7 8.1 18.0 22.8 23.1 1.5
 O. bartrami 3.4 4.7 18.5 3.1 6.7 13.6
 T. sagittatus 30.5 36.7 62.9 19.8 6.8 59.1 11.8 24.1 46.0 5.3 3.1 0.5
 T. eblanae 1.5 1.9 9.1
Onychoteuthidae 26.5 9.4 58.9 19.8 6.2 54.6 14.5 35.6 58.0 1.8 4.1 0.3
 A. lichtensteini 19.6 8.7 48.4 6.9 3.0 31.8 4.9 11.2 33.0
 O. banksii 6.9 0.7 21.8 13.0 3.2 31.8 9.6 24.4 57.0 1.8 4.1 0.3
Thysanoteuthidae (T. rhombus) 0.5 33.5 2.4 0.8 35.0 4.5
Myopsida Loliginidae (A. subulata) 0.1 0.2 1.0
Sepioidea Sepiolidae (H. dispar) 16.7 0.2 33.9 7.6 0.1 13.6 65.0 24.0 66.0